Electric Vehicle Performance Power and Efficiency

Size: px
Start display at page:

Download "Electric Vehicle Performance Power and Efficiency"

Transcription

1 Electric Vehicle Performance Power and Efficiency 1 Assignment a) Examine measurement guide and electric vehicle (EV) arrangement. b) Drive the route according to teacher s instruction and download measured data. c) Plot the velocity v graph from the measured data. d) From the measured data calculate waveforms of the following powers: Power drawn from the battery P bat, converter output power P con, motor electric power P me and mechanical power at the wheel P m. e) Calculate total consumed energy W t, consumed energy without regenerative braking W c and regenerated energy W r. f) From the obtained powers calculate waveforms and average values of efficiencies: Powertrain efficiency η p, converter efficiency η con, motor electric efficiency η me and mechanical system efficiency η m. g) Obtained waveforms of powers and efficiencies plot into graphs according to the instructions at the end of the guide. h) Mark the acceleration, mixed regenerative braking and pure regenerative braking sections in the graphs. 2 Measurement Fig. 1: Block diagram of the drive. 2.1 Testing vehicle The assignment will be measured at Citroën Berlingo EV. This model is from the year 2000 and it was designated for the UK market (the steering wheel is on the right). EV powertrain is completely reconstructed from the original powertrain only the motor remained, to which we add our developed drive unit (Fig. 1) and a traction battery. The goal of the drive unit development was a device, which combines all the powertrain functions in one chassis. The drive unit comprises of these modules: - 1 -

2 Motor control module contains traction converter designed for DC motor with separate excitation and control unit for motor regulation according to the driver s request. Vehicle control unit evaluates the driver input through control pedals, measures vehicle velocity and manages lights, dashboard, and other peripheries. On-board DC/DC converter powers vehicle grid of 12 V DC. The DC motor with separate excitation is the main part of the drive. Its parameters are summarized in Tab. 1. The motor is accompanied with a gearbox with a constant gear ratio of 1:7.18. Gearbox output is fixed to the front axle shaft, which goes through the rotor center. Motor revolutions are measured by Hall sensor placed at the differential. Tab. 1: Motor parameters. Tag parameters Measured parameters Manufacturer Leroy-Somer Armature resistance R q (0.017 ± 0.001) Ω Type SA18 Armature inductance L q (285 ± 20) μh Power 15 kw (nom.) / 28 kw (max.) Excitation resistance R f (8.9 ± 0.2) Ω Revolutions 1650 RPM Excitation inductance L f (15 ± 2) H Armature 162 V / 110 A Common motor and Excitation 120 V / 9.5 A excitation constant k mφ The motor control module comprises of armature converter (Fig. 2 left), excitation converter (Fig. 2 right), which have separate power circuit, but they are regulated by the same microcontroller. Armature converter is a half-bridge, and excitation converter is a full-bridge, which provides reversion (change of motor revolution direction). Motor parameters are summarized in the Tab. 2. Fig. 2: Armature converter (left) and excitation converter (right). Tab. 2: Parameters of the armature and excitation converters. Armature voltage nominal 150 V, maximal 200 V Armature current nominal 100 A, maximal 150 A Excitation maximal 200 V, maximal 10 A Power nominal 15 kw Efficiency 90 % (v <25 km/h), 95 % A traction battery powers the drive. It consists of 12 traction lead accumulators Banner Energy Bull , with a total voltage of 150 V and a capacity of 60 Ah. Because the traction battery is made of lead accumulators, the BMS (battery management system) is not required. Fig. 3 depicts the motor control diagram. The motor is controlled by three PS regulators with anti-wind up (AWU) circuit. The PS regulators are connected to a cascade. The first regulator controls the armature current I q. The required current I q enters the regulator and the armature duty factor s q is at its output, which passes through the limiter to the armature converter. The armature current I q is measured at the converter output. The second regulator controls the armature duty factor s q. At its input is the required value s q, which is permanently set as the maximal value. Required excitation current I f is at the regulator output. Maximal possible - 2 -

3 value of the I f is set to 10 % I q by a limiter. This ensures behavior similar to a DC motor with serial excitation. Limiter also ensures that the calculated value of the I f ranges from 1,2 A to 10 A. Third PS regulator controls excitation current I f. Regulated value of the I f enters the regulator and the output excitation duty factor s f after limiting enters the excitation converter. Real value of the excitation current I f is measured at converter output. Fig. 3: Control diagram. Fig. 4: Simplified block diagram of the powertrain with marked measurement points of the powers and efficiency calculations. 2.2 Powertrain Schematics Fig. 4 depicts simplified block diagram with marked points of the power measurement or calculation. In the Fig. 4 bottom the efficiency calculations are illustrated. The calculation itself depends if the drive operates in the acceleration or regenerative braking regime, as explained further. Powers Power drawn from the battery P bat point A. P bat describes energy consumption or regeneration in the given moment. Corresponds with the converter input power. Converter output power P con point B. P con is a sum of the armature converter power P q and excitation converter power P f, which are measured in the same point. Corresponds with the motor input power. Motor electric power P me point C. P me represents power transferred through the motor air gap. Corresponds with the vehicle mechanical system input power. Mechanical power at the wheel P m point D. P m describes power at the output of the whole vehicle mechanical system, which consists of mechanical part of the motor, gearbox, differential, and power transmission to the wheel

4 Efficiencies Powertrain efficiency η p from P m, P bat. Can be calculated as η p = η con η me η m. Converter efficiency η con from P con, P bat. Motor electric efficiency η me from P me, P con. Mechanical system efficiency η m from P m, P me. 2.3 Acceleration a Regenerative Braking For the correct power and efficiency calculation, it is necessary to understand vehicle behavior from the consumption perspective. Individual states are depicted in Fig. 5. An arrow from left to right corresponds with appliance behavior, and thus the power is positive. An arrow from right to left corresponds with the source behavior, and the power is negative. Following three states are important for the calculation: Acceleration (Fig. 5 a)) The powertrain accelerates the vehicle. The battery current I bat and the armature current I q must be both higher than zero at the same time. Mixed regenerative braking (Fig. 5 b)) The regenerative braking occurs; however, the regenerated power does not cover the drive s own consumption (primarily excitation input power P f ). Part of the power must be supplied from the battery. Corresponds with the situation, when the battery current I bat is higher than zero and armature current I q is smaller than zero. Pure regenerative braking (Fig. 5 c)) Regenerated power covers fully the drive s own consumption a rest of it recharges the battery. Corresponds with the situation, when the battery current I bat is smaller than zero. Fig. 5: Power flows a) acceleration, b) mixed regenerative braking, c) pure regenerative braking. 2.4 Measurement Procedure In the beginning, measure the air temperature for the aerodynamic drag F ad calculation. Each student drives the route according to the teacher instruction. The route must include longer continuous section of driving, with a portion of the pure regenerative braking. Attention! Stronger energy regeneration is set at acceleration pedal to achieve the pure regenerative braking effect easily. Therefore, expect stronger braking effect after acceleration pedal release, this effect is also proportional to the release rate. In EVs, there is usually set a mild regenerative braking at the acceleration pedal after its release and strong at the braking pedal. In our case, if the regenerative braking would be placed on the brake pedal, it would not be possible to distinguish the effect of the regenerative braking and the mechanical brake. Thus, it would not be possible to calculate efficiencies during the regenerative braking. Therefore, use the brake carefully. The measuring system is part of the powertrain electronics. A laptop is connected to the vehicle interface to obtain the measurement data. Data are measured with frequency of 5 sample per second. At the end of the - 4 -

5 measurement, the teacher will download measured data and distribute it to the students. Do not forget to note your measurement number to prevent any misunderstanding. 2.5 Measured Data Preparation You will obtain.log file containing measured data. Its name will consist of the measurement date and time. Before processing the measured data, verify that they are yours. Import the data into MS Excel or other suitable SW for the processing. File with measured data consists of the header, the data itself and the termination. The header and the termination contains only the information about the beginning time and ending time, respectively, and thus not important for the calculations. Measured data are organized into columns with fixed width, there is no delimiter between columns (see Fig. 6). On each line, there is at first the quantity symbol and then its value. Fig. 6: Example of a file with measured data. Following quantities are measured (measurement unit is in the square brackets): Armature current I q [ma] point B, excitation current I f [ma] point B, battery current I bat [ma] point A, battery voltage U bat [mv] point A, armature voltage U q [mv] point B, excitation voltage U f [mv] point B, vehicle velocity v [mm s 1 ] point D, revolution sensor output x [ ], mechanical braking indicator b [ ], finite state machine FSM [ ], energy drawn from the battery since last charging E [Wh] Before starting with calculation, prepare the data in following way: From the measured data, select only the longest section of the continuous driving. Remove sections with a vehicle turning or stopping. To select the suitable section, you may use the auxiliary graph of velocity in dependence on time or revolution sensor output x. Convert all the quantities except for x, b to the basic SI units (mv V). Smoothen converted values by moving average from 5 values. Remove column FSMp, it is a powertrain state quantity designated only for condition control. Column E informs the teacher about the battery condition and does not figure in the calculations. Remove it too. Add column containing time t [s]. Data were measured with the sampling period T s = 0,2 s. Convert the velocity from z m/s to km/h for the velocity graph. For the calculations use velocity v in m/s. If the excitation current I f is negative, the reversion occurs (the vehicle goes in backward). Reverse sign only marks the reversion, the current is always drawn from the battery and supplied to the excitation

6 Only during the reversion, the current flows through the opposite direction. Reversion should not occur in the evaluated section. Excitation voltage U f is a control quantity for the I f. Reversion actually occurs only if the I f is negative, not if the U f is negative. If you choose a suitable section, U f will never be negative. Round the converted currents to 1 decimal place (hundreds of ma). 2.6 Calculation of the Powers The first step of the calculation is the calculation of powers. It is followed by the consumed energy calculation and finally with the calculation of efficiencies Power Drawn from the Battery P bat Calculate the power drawn from the battery P bat from values of the voltage and current measured between traction battery and converter (section A in Fig. 3) see equation (1). If the current I bat is negative, the power flow turns (P bat is negative) and the battery is charged. P bat = U bat I bat (1) Converter Output Power P con Converter output power corresponds to the sum of armature power P q and excitation power P f see equation (2). Currents at the converter output are measured (section B in Fig. 3), but armature voltage U q and excitation voltage U f is obtained from converter duty factors and voltage drops. P con = P q + P f = U q I q + U f I f (2) Regenerative braking condition is negative armature current I q. Part of the regenerated power is consumed by the excitation. If the power drawn by excitation P f is smaller than regenerated P q, excess power recharges the battery Motor Electric Power P me Motor electric power P me is considered as the power in the air gap of the electric machine (point C in Fig. 3). It can be calculated according to the (3). P me = U i I q (3) Armature current I q is constant in the whole armature circuit, therefore it is possible to use the values from the section C in Fig. 3. Nevertheless, induced voltage U i must be calculated according to equation (4) from armature resistance R q, armature current I q and armature voltage U q. This equation is based on the equation for the armature voltage U q, which is a part of the DC machine mathematical model. Voltage induced at armature inductance L q can be neglected due low value of the L q. Similarly, it is possible to omit the resistance change due the temperature, as it is lower than resistance measurement error. U i = U q R q I q (4) Mechanical Power at the Wheel P m Mechanical power at the wheel P m (point D in Fig. 3) can be calculated from the vehicle velocity v a tractive force F t see the equation (5). P m = F t v (5) F t + F l = F d (6) Tractive Force F t Polarity and Calculation To calculate the tractive force F t use the force movement equation (6). F l labels the load force and F d the dynamic force. The forces are positive if they work in the direction of the vehicle movement, and negative, if they - 6 -

7 work against the vehicle movement therefore, F t = 100 N accelerates the vehicle and on the contrary, F t = 100 N decelerates the vehicle. For the correct tractive force F t calculation, it is necessary understand the differences among the possible cases. If the vehicle accelerates, the tractive force value is calculated according to the equation (7) and it will have positive polarity. F t = F l + F d (7) If the vehicle decelerates, two cases can be distinguished in the dependency on the ratio between load force F l and dynamic force F d value: Provided that F l > F d, the tractive force F t works in the vehicle direction, but it is not large enough to overcome the load force F l and the vehicle decelerates. Calculate the tractive force absolute value according to the equation (8). Calculated force will be positive as in the previous case. F t = F l F d (8) Provided that F z < F d, tractive force F t decelerates the vehicle and its absolute value can be calculated according to the equation (9). In this case, the tractive power F h is negative, similarly as resulting mechanical power at the wheel P m. F t = F d F l (9) Dynamic Force F t Calculation Dynamic force F d comprises of the linear acceleration force F dl and the rotary acceleration force F dr. Linear acceleration force F dl can be calculated according to the equation (10). F dl = m dv dt Due to the fact, that the calculation is based on the discrete values, the derivation is transformed into a difference. Index k labels the present step value and the index k 1 labels the previous step value (10) dv v(k) v(k 1) (11) dt T s Subsequently, calculate the linear acceleration force F dl from the equation (12). For the F dl calculation it is necessary to know the vehicle weight m, which is a sum of the empty vehicle weight m 0 = 1277 kg, the teachers weight m c, and the students weight m s see (13). v(k) v(k 1) (12) F dl = m T s m = m 0 + m c + m s (13) Rotary acceleration force F dr describes the energy stored in the rotary masses. For its calculation, it is necessary to know the moment of inertia of all the rotary masses in the vehicle. Since we do not know the moment of inertia value, we will estimate the rotary acceleration force F dr as 5 % of the linear acceleration force F dl : Thus, the total dynamic force can be calculated as: F dr = 0,05F dl (14) F d = F dl + F dr (15) Load Force F l Calculation Similarly to the dynamic force F d, also the load force F l is a sum of sub-forces: Rolling resistance force F rr, aerodynamic drag F ad, hill climbing force F hc a turning force F tu. Last two forces are neglected: Hill climbing force F hc measured route is leveled, and turning force F tu all the turns are gone through slow enough. Load force F l is then a sum of F rr and F ad. Rolling resistance force F rr calculation is based on the recalculation of the value for the empty vehicle F ov0 to the value for the vehicle with the teacher and the student see equation (16). Value for the empty vehicle

8 F ov0 = 270 N was measured by the coast-down method and verified by a calculation. F rr is equal to zero, when the vehicle does not move. F rr = F rr0 m m 0 (16) Calculate the aerodynamic drag F ad according to the equation (17), vehicle parameters necessary for the calculation are summarized in the Tab. 3 and air density can be obtained by linear interpolation from Tab. 4. Omit the wind speed. F ad = 1 2 ρac dv 2 (17) Tab. 3: Aerodynamic drag calculation parameters. Frontal area A [m 2 ] 2.66 Aerodynamic drag coefficient C d [ ] 0.37 Tab. 4: Values for the air density calculation. Temperature T [ C] Air density ρ [kg.m -3 ] Total load force can be calculated as F l : 2.7 Energy Consumption Calculations F l = F rr + F ad (18) Calculate the total consumed energy W t (19), consumed energy without regenerative braking W c (20) and regenerated energy W r (21). Use the trapezoidal approximation. List the results in Wh. n n W t = P bat(k 1) + P bat (k) 2 k=2 W c = P bat(k 1) + P bat (k) 2 k=2 n W r = P bat(k 1) + P bat (k) 2 k=2 T s T s (19), (P bat (k 1) + P bat (k)) > 0 (20) T s, (P bat (k 1) + P bat (k)) < 0 (21) Tab. 5: Efficiency calculations. Acceleration Pure regenerative braking Powertrain efficiency η p Converter efficiency η con Motor electric efficiency η em Mechanical system efficiency η m η p = P m P bat η con = P con P bat η em = P me P con η m = P m P me η p = P bat P m η con = P bat P con η em = P con P me η m = P me P m 2.8 Efficiency Calculations Calculate the powertrain efficiency η p, converter efficiency η con, motor electric efficiency η me and mechanical system efficiency η m from the calculated powers. The calculation is different for the acceleration and the regenerative braking the power flow is the opposite during the regenerative braking (see ). Calculate the efficiencies if the power flows only in one direction i.e., during acceleration and pure regenerative braking. If the - 8 -

9 mixed regenerative braking occurs, the calculations of the powertrain efficiency η p and converter efficiency η con does not have physical meaning. Also omit the steps in which the mechanical braking occurs (b = 1). Calculate the averages of each waveform. Calculate the averages separately for acceleration and pure regenerative braking. Neglect the steps in which you did not calculate the efficiency or the efficiency is equal to zero. Consider only the steps in which the efficiency does not exceed 100 %. Note: Equation η p = η con. η em. η m is valid only for the efficiency values in the individual steps, not for the efficiency averages. 3 Measurement Protocol Besides the necessities described in Requirements for submitted protocols (available at the course website at motor.feld.cvut.cz), every protocol must be present the results in the following way. 3.1 Graphs All the graphs should be large enough for easy reading. If you use the multiple vertical axes, all the axes must use the same grid. Mark the acceleration, mixed regenerative braking and pure regenerative braking sections in the graphs Velocity and Acceleration Graph Plot the velocity v (in km/h) and the acceleration a (in m/s 2 ) Graph of Powers Plot all the calculated powers (P bat, P con, P me a P m ) into a same plot. If the power is consumed (direction from the battery to the wheel acceleration, mixed regenerative braking), then depict the value as positive. If the power is regenerated (direction from the wheel to the battery mixed, pure regenerative braking), then depict the value as negative Graph of Efficiencies Plot all the calculated efficiencies (η p, η con, η em a η m ) into the same plot. Depict the efficiencies for the acceleration as positive and for the regenerative braking as negative. 3.2 Numerical Results Table In one table list the calculated energies (W t, W c, W r ) and average efficiencies (η p, η con, η em a η m, acceleration and regenerative braking separately) Michal Košík, Pavel Skarolek - 9 -

Pearson Edexcel Level 1/Level 2 GCSE (9-1) Combined Science Paper 2: Physics 2

Pearson Edexcel Level 1/Level 2 GCSE (9-1) Combined Science Paper 2: Physics 2 Write your name here Surname Other names Pearson Edexcel Level 1/Level 2 GCSE (9-1) Centre Number Combined Science Paper 2: Physics 2 Sample Assessment Materials for first teaching September 2016 Time:

More information

DC motors. 1. Parallel (shunt) excited DC motor

DC motors. 1. Parallel (shunt) excited DC motor DC motors 1. Parallel (shunt) excited DC motor A shunt excited DC motor s terminal voltage is 500 V. The armature resistance is 0,5 Ω, field resistance is 250 Ω. On a certain load it takes 20 A current

More information

Tutorial 1 - Drive fundamentals and DC motor characteristics

Tutorial 1 - Drive fundamentals and DC motor characteristics University of New South Wales School of Electrical Engineering & elecommunications ELEC4613 ELECRIC DRIVE SYSEMS utorial 1 - Drive fundamentals and DC motor characteristics 1. In the hoist drive system

More information

Vehicle Propulsion Systems. Electric & Hybrid Electric Propulsion Systems Part III

Vehicle Propulsion Systems. Electric & Hybrid Electric Propulsion Systems Part III Vehicle Propulsion Systems Electric & Hybrid Electric Propulsion Systems Part III 1 Planning of Lectures and Exercises: Week Lecture, Friday, 8:15-10:00, ML F34 Book chp. 38, 21.09.2018 Introduction, goals,

More information

Model of a DC Generator Driving a DC Motor (which propels a car)

Model of a DC Generator Driving a DC Motor (which propels a car) Model of a DC Generator Driving a DC Motor (which propels a car) John Hung 5 July 2011 The dc is connected to the dc as illustrated in Fig. 1. Both machines are of permanent magnet type, so their respective

More information

Appendix A Prototypes Models

Appendix A Prototypes Models Appendix A Prototypes Models This appendix describes the model of the prototypes used in Chap. 3. These mathematical models can also be found in the Student Handout by Quanser. A.1 The QUANSER SRV-02 Setup

More information

Design a SSV. Small solar vehicle. Case SSV part 1

Design a SSV. Small solar vehicle. Case SSV part 1 1 Design a SSV Small solar vehicle Case SSV part 1 2 Contents 1. The characteristics of the solar panel... 4 2. Optimal gear ratio... 10 3. Bisection method... 14 4. Sankey diagrams... 18 A) Sankey diagram

More information

Chapter 7: Stepper Motors. (Revision 6.0, 27/10/2014)

Chapter 7: Stepper Motors. (Revision 6.0, 27/10/2014) Chapter 7 Stepper Motors (Revision 6.0, 7/10/014) 1. Stepping Angle Analysis The following analysis derives the formula for the stepping angle of the stepper motor. It has been reproduced and edited from

More information

Design and Characteristic Analysis of LSM for High Speed Train System using Magnetic Equivalent Circuit

Design and Characteristic Analysis of LSM for High Speed Train System using Magnetic Equivalent Circuit IJR International Journal of Railway Vol. 3, No. 1 / March 2010, pp. 14-18 The Korean Society for Railway Design and Characteristic Analysis of LSM for High Speed Train System using Magnetic Equivalent

More information

EDEXCEL NATIONALS UNIT 5 - ELECTRICAL AND ELECTRONIC PRINCIPLES. ASSIGNMENT No. 3 - ELECTRO MAGNETIC INDUCTION

EDEXCEL NATIONALS UNIT 5 - ELECTRICAL AND ELECTRONIC PRINCIPLES. ASSIGNMENT No. 3 - ELECTRO MAGNETIC INDUCTION EDEXCEL NATIONALS UNIT 5 - ELECTRICAL AND ELECTRONIC PRINCIPLES ASSIGNMENT No. 3 - ELECTRO MAGNETIC INDUCTION NAME: I agree to the assessment as contained in this assignment. I confirm that the work submitted

More information

Synchronous Machines

Synchronous Machines Synchronous Machines Synchronous Machines n 1 Φ f n 1 Φ f I f I f I f damper (run-up) winding Stator: similar to induction (asynchronous) machine ( 3 phase windings that forms a rotational circular magnetic

More information

Technical University of Graz, April 2012

Technical University of Graz, April 2012 Technical University of Graz, April 2012 «Energy Management of EVs & HEVs using Energetic Macroscopic Representation» Dr. Philippe Barrade*, Dr. Walter LHOMME**, Prof. Alain BOUSCAYROL** * LEI, Ecole Polytechnique

More information

DcMotor_ Model Help File

DcMotor_ Model Help File Name of Model: DcMotor_021708 Author: Vladimir L. Chervyakov Date: 2002-10-26 Executable file name DcMotor_021708.vtm Version number: 1.0 Description This model represents a Nonlinear model of a permanent

More information

3 d Calculate the product of the motor constant and the pole flux KΦ in this operating point. 2 e Calculate the torque.

3 d Calculate the product of the motor constant and the pole flux KΦ in this operating point. 2 e Calculate the torque. Exam Electrical Machines and Drives (ET4117) 11 November 011 from 14.00 to 17.00. This exam consists of 5 problems on 4 pages. Page 5 can be used to answer problem 4 question b. The number before a question

More information

Research of double claw-pole structure generator

Research of double claw-pole structure generator Available online www.jocpr.com Journal of Chemical and Pharmaceutical Research, 2014, 6(6):1184-1190 Research Article ISSN : 0975-7384 CODEN(USA) : JCPRC5 Research of double claw-pole structure generator

More information

Mathematical Modeling and Dynamic Simulation of a Class of Drive Systems with Permanent Magnet Synchronous Motors

Mathematical Modeling and Dynamic Simulation of a Class of Drive Systems with Permanent Magnet Synchronous Motors Applied and Computational Mechanics 3 (2009) 331 338 Mathematical Modeling and Dynamic Simulation of a Class of Drive Systems with Permanent Magnet Synchronous Motors M. Mikhov a, a Faculty of Automatics,

More information

Texas A & M University Department of Mechanical Engineering MEEN 364 Dynamic Systems and Controls Dr. Alexander G. Parlos

Texas A & M University Department of Mechanical Engineering MEEN 364 Dynamic Systems and Controls Dr. Alexander G. Parlos Texas A & M University Department of Mechanical Engineering MEEN 364 Dynamic Systems and Controls Dr. Alexander G. Parlos Lecture 6: Modeling of Electromechanical Systems Principles of Motor Operation

More information

To be opened on receipt

To be opened on receipt To be opened on receipt LEVEL 3 CERTIFICATE MATHEMATICS FOR ENGINEERING H860/0 Paper * H 8 6 7 8 0 6 3 * PRE-RELEASE MATERIAL May 03 * H 8 6 0 0 * INSTRUCTIONS TO CANIATES This document consists of 8 pages.

More information

Lecture (20) DC Machine Examples Start of Synchronous Machines

Lecture (20) DC Machine Examples Start of Synchronous Machines Lecture (20) DC Machine Examples Start of Synchronous Machines Energy Systems Research Laboratory, FIU All rights reserved. 20-1 Energy Systems Research Laboratory, FIU All rights reserved. 20-2 Ra R f

More information

Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science Electric Machines

Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science Electric Machines Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science 6.685 Electric Machines Problem Set 10 Issued November 11, 2013 Due November 20, 2013 Problem 1: Permanent

More information

Mechatronics Engineering. Li Wen

Mechatronics Engineering. Li Wen Mechatronics Engineering Li Wen Bio-inspired robot-dc motor drive Unstable system Mirko Kovac,EPFL Modeling and simulation of the control system Problems 1. Why we establish mathematical model of the control

More information

SC125MS. Data Sheet and Instruction Manual. ! Warning! Salem Controls Inc. Stepper Motor Driver. Last Updated 12/14/2004

SC125MS. Data Sheet and Instruction Manual. ! Warning! Salem Controls Inc. Stepper Motor Driver.   Last Updated 12/14/2004 SC125MS Stepper Motor Driver Salem Controls Inc. Last Updated 12/14/2004! Warning! Stepper motors and drivers use high current and voltages capable of causing severe injury. Do not operate this product

More information

ing. A. Kragten May 2008 KD 378

ing. A. Kragten May 2008 KD 378 Basic knowledge about electrical, chemical, mechanical, potential and kinetic energy to understand literature about the generation of energy by small wind turbines ing. A. Kragten May 2008 KD 378 It is

More information

Cambridge International Examinations Cambridge Ordinary Level

Cambridge International Examinations Cambridge Ordinary Level Cambridge International Examinations Cambridge Ordinary Level *4817101212* PHYSICS 5054/21 Paper 2 Theory May/June 2016 1 hour 45 minutes Candidates answer on the Question Paper. No Additional Materials

More information

EE 410/510: Electromechanical Systems Chapter 4

EE 410/510: Electromechanical Systems Chapter 4 EE 410/510: Electromechanical Systems Chapter 4 Chapter 4. Direct Current Electric Machines and Motion Devices Permanent Magnet DC Electric Machines Radial Topology Simulation and Experimental Studies

More information

Parameter Prediction and Modelling Methods for Traction Motor of Hybrid Electric Vehicle

Parameter Prediction and Modelling Methods for Traction Motor of Hybrid Electric Vehicle Page 359 World Electric Vehicle Journal Vol. 3 - ISSN 232-6653 - 29 AVERE Parameter Prediction and Modelling Methods for Traction Motor of Hybrid Electric Vehicle Tao Sun, Soon-O Kwon, Geun-Ho Lee, Jung-Pyo

More information

Charge/discharge control of a train with on-board energy storage devices for energy minimization and consideration of catenary free operation

Charge/discharge control of a train with on-board energy storage devices for energy minimization and consideration of catenary free operation Energy Management in the Train Operation 65 Charge/discharge control of a train with on-board energy storage devices for energy minimization and consideration of catenary free operation M. Miyatake, K.

More information

DYNAMICS MOMENT OF INERTIA

DYNAMICS MOMENT OF INERTIA DYNAMICS MOMENT OF INERTIA S TO SELF ASSESSMENT EXERCISE No.1 1. A cylinder has a mass of 1 kg, outer radius of 0.05 m and radius of gyration 0.03 m. It is allowed to roll down an inclined plane until

More information

E11 Lecture 13: Motors. Professor Lape Fall 2010

E11 Lecture 13: Motors. Professor Lape Fall 2010 E11 Lecture 13: Motors Professor Lape Fall 2010 Overview How do electric motors work? Electric motor types and general principles of operation How well does your motor perform? Torque and power output

More information

Revision Guide for Chapter 15

Revision Guide for Chapter 15 Revision Guide for Chapter 15 Contents tudent s Checklist Revision otes Transformer... 4 Electromagnetic induction... 4 Generator... 5 Electric motor... 6 Magnetic field... 8 Magnetic flux... 9 Force on

More information

PHYSICS (SPECIFICATION A) Unit 10 The Synoptic Unit

PHYSICS (SPECIFICATION A) Unit 10 The Synoptic Unit Surname Centre Number Other Names Candidate Number Leave blank Candidate Signature General Certificate of Education June 2003 Advanced Level Examination PHYSICS (SPECIFICATION A) Unit 10 The Synoptic Unit

More information

Tutorial 1 (EMD) Rotary field winding

Tutorial 1 (EMD) Rotary field winding Tutorial 1 (EMD) Rotary field winding The unchorded two-layer three-phase winding of a small synchronous fan drive for a computer has the following parameters: number of slots per pole and phase q = 1,

More information

LESSON 20 ALTERNATOR OPERATION OF SYNCHRONOUS MACHINES

LESSON 20 ALTERNATOR OPERATION OF SYNCHRONOUS MACHINES ET 332b Ac Motors, Generators and Power Systems LESSON 20 ALTERNATOR OPERATION OF SYNCHRONOUS MACHINES 1 LEARNING OBJECTIVES After this presentation you will be able to: Interpret alternator phasor diagrams

More information

Motor Specifications and Ratings 200V MDMA

Motor Specifications and Ratings 200V MDMA Motor Specifications and Ratings 2V 1.kW to 1.kW Low inertia, Medium Capacity AC2V Motor model Applicable driver Model No. A4 A4F Frame symbol 121 12S1 121 12S1 MDDDT33 MDDDT4 MDDDT33F MDDDT4F MDDDT33

More information

TOPIC: ELECTRODYNAMICS - MOTORS AND GENERATORS AND ALTERNATING CURRENT. (Taken from the DoE Physical Sciences Preparatory Examination Paper )

TOPIC: ELECTRODYNAMICS - MOTORS AND GENERATORS AND ALTERNATING CURRENT. (Taken from the DoE Physical Sciences Preparatory Examination Paper ) TOPIC: ELECTRODYNAMICS - MOTORS AND GENERATORS AND ALTERNATING CURRENT SECTION A: TYPICAL EXAM QUESTIONS QUESTION 1: 13 minutes (Taken from the DoE Physical Sciences Preparatory Examination Paper 1 2008)

More information

ADMISSION TEST INDUSTRIAL AUTOMATION ENGINEERING

ADMISSION TEST INDUSTRIAL AUTOMATION ENGINEERING UNIVERSITÀ DEGLI STUDI DI PAVIA ADMISSION TEST INDUSTRIAL AUTOMATION ENGINEERING September 26, 2016 The candidates are required to answer the following multiple choice test which includes 30 questions;

More information

Homework Assignment 2 Modeling a Drivetrain Model Accuracy Due: Friday, September 16, 2005

Homework Assignment 2 Modeling a Drivetrain Model Accuracy Due: Friday, September 16, 2005 ME 2016 Sections A-B-C-D Fall Semester 2005 Computing Techniques 3-0-3 Homework Assignment 2 Modeling a Drivetrain Model Accuracy Due: Friday, September 16, 2005 Description and Outcomes In this assignment,

More information

APPLICATION OF GPS RECEIVER TO ROAD TESTS OF AUTOMOBILE

APPLICATION OF GPS RECEIVER TO ROAD TESTS OF AUTOMOBILE Journal of KONES Powertrain and Transport, Vol. 0, No. 3 013 APPLICATION OF GPS RECEIVER TO ROAD TESTS OF AUTOMOBILE Hubert Sar, Janusz Pokorski, Piotr Fundowicz, Andrzej Re ski Warsaw University of Technology

More information

P.M. WEDNESDAY, 25 May hour

P.M. WEDNESDAY, 25 May hour Surname Centre Number Candidate Number Other Names 0 GCSE 4473/01 S16-4473-01 ADDITIONAL SCIENCE/PHYSICS PHYSICS 2 FOUNDATION TIER P.M. WEDNESDAY, 25 May 2016 1 hour For s use Question Maximum Mark Mark

More information

Chapter 6: Efficiency and Heating. 9/18/2003 Electromechanical Dynamics 1

Chapter 6: Efficiency and Heating. 9/18/2003 Electromechanical Dynamics 1 Chapter 6: Efficiency and Heating 9/18/2003 Electromechanical Dynamics 1 Losses As a machine transforms energy from one form to another there is always a certain power loss the loss is expressed as heat,

More information

Servo Motors Classification Based on the Accelerating Factor

Servo Motors Classification Based on the Accelerating Factor Servo otors Classification Based on the Accelerating Factor Hermes GIBERTI, Simone CINQUEANI echanical Engineering Department, Politecnico di ilano, Campus Bovisa Sud, via La asa 34, 0156, ilano, Italy

More information

Chapter 3: Fundamentals of Mechanics and Heat. 1/11/00 Electromechanical Dynamics 1

Chapter 3: Fundamentals of Mechanics and Heat. 1/11/00 Electromechanical Dynamics 1 Chapter 3: Fundamentals of Mechanics and Heat 1/11/00 Electromechanical Dynamics 1 Force Linear acceleration of an object is proportional to the applied force: F = m a x(t) F = force acting on an object

More information

A FORCE BALANCE TECHNIQUE FOR MEASUREMENT OF YOUNG'S MODULUS. 1 Introduction

A FORCE BALANCE TECHNIQUE FOR MEASUREMENT OF YOUNG'S MODULUS. 1 Introduction A FORCE BALANCE TECHNIQUE FOR MEASUREMENT OF YOUNG'S MODULUS Abhinav A. Kalamdani Dept. of Instrumentation Engineering, R. V. College of Engineering, Bangalore, India. kalamdani@ieee.org Abstract: A new

More information

ELG4112. Electromechanical Systems and Mechatronics

ELG4112. Electromechanical Systems and Mechatronics ELG4112 Electromechanical Systems and Mechatronics 1 Introduction Based on Electromechanical Systems, Electric Machines, and Applied Mechatronics Electromechanical systems integrate the following: Electromechanical

More information

P.M. WEDNESDAY, 10 June minutes

P.M. WEDNESDAY, 10 June minutes Candidate Name Centre Number Candidate Number 0 GCSE 241/02 ADDITIONAL SCIENCE HIGHER TIER PHYSICS 2 P.M. WEDNESDAY, 10 June 2009 45 minutes ADDITIONAL MATERIALS In addition to this paper you may require

More information

Synergetic Control for Electromechanical Systems

Synergetic Control for Electromechanical Systems Synergetic Control for Electromechanical Systems Anatoly A. Kolesnikov, Roger Dougal, Guennady E. Veselov, Andrey N. Popov, Alexander A. Kolesnikov Taganrog State University of Radio-Engineering Automatic

More information

Energy, Work & Power Questions

Energy, Work & Power Questions Energy, Work & Power Questions 24. The diagram shows part of a roller coaster ride. In practice, friction and air resistance will have a significant effect on the motion of the vehicle, but you should

More information

Revision Guide for Chapter 15

Revision Guide for Chapter 15 Revision Guide for Chapter 15 Contents Revision Checklist Revision otes Transformer...4 Electromagnetic induction...4 Lenz's law...5 Generator...6 Electric motor...7 Magnetic field...9 Magnetic flux...

More information

London Examinations IGCSE

London Examinations IGCSE Centre No. Candidate No. Surname Signature Initial(s) Paper Reference(s) 4420/2H London Examinations IGCSE Physics Paper 2H Higher Tier Monday 21 May 2007 Afternoon Time: 2 hours Materials required for

More information

Chapter 3 AUTOMATIC VOLTAGE CONTROL

Chapter 3 AUTOMATIC VOLTAGE CONTROL Chapter 3 AUTOMATIC VOLTAGE CONTROL . INTRODUCTION TO EXCITATION SYSTEM The basic function of an excitation system is to provide direct current to the field winding of the synchronous generator. The excitation

More information

13 11 Ball Bearing Motor

13 11 Ball Bearing Motor 11 Ball Bearing Motor 11. Ball Bearing Motor uses electrical energy to create rotational motion. On what parameters do the motor efficiency and the velocity of the rotation depend? 2 INTRODUCTION 3 What

More information

TwinCAT Motion Designer Report. Project Name: TwinCAT Motion Designer Project1. Customer. Application Engineer. Project Description

TwinCAT Motion Designer Report. Project Name: TwinCAT Motion Designer Project1. Customer. Application Engineer. Project Description TwinCAT Motion Designer Report Project Name: Customer Company: Name: Department: Street: City: Country: Application Engineer Company: Name: Department: Street: City: Country: Project Description Exclusion

More information

H2 Physics Set D Paper 2 H2 PHYSICS. Exam papers with worked solutions. (Selected from Top JC) SET D PAPER 2.

H2 Physics Set D Paper 2  H2 PHYSICS. Exam papers with worked solutions. (Selected from Top JC) SET D PAPER 2. H2 PHYSICS Exam papers with worked solutions (Selected from Top JC) SET D PAPER 2 Compiled by THE PHYSICS CAFE 1 P a g e INSTRUCTIONS TO CANDIDATES Do Not Open This Booklet Until You Are Told To Do So.

More information

Simple Car Dynamics. Outline. Claude Lacoursière HPC2N/VRlab, Umeå Universitet, Sweden, May 18, 2005

Simple Car Dynamics. Outline. Claude Lacoursière HPC2N/VRlab, Umeå Universitet, Sweden, May 18, 2005 Simple Car Dynamics Claude Lacoursière HPC2N/VRlab, Umeå Universitet, Sweden, and CMLabs Simulations, Montréal, Canada May 18, 2005 Typeset by FoilTEX May 16th 2005 Outline basics of vehicle dynamics different

More information

Appendix W. Dynamic Models. W.2 4 Complex Mechanical Systems. Translational and Rotational Systems W.2.1

Appendix W. Dynamic Models. W.2 4 Complex Mechanical Systems. Translational and Rotational Systems W.2.1 Appendix W Dynamic Models W.2 4 Complex Mechanical Systems W.2.1 Translational and Rotational Systems In some cases, mechanical systems contain both translational and rotational portions. The procedure

More information

Quanser NI-ELVIS Trainer (QNET) Series: QNET Experiment #02: DC Motor Position Control. DC Motor Control Trainer (DCMCT) Student Manual

Quanser NI-ELVIS Trainer (QNET) Series: QNET Experiment #02: DC Motor Position Control. DC Motor Control Trainer (DCMCT) Student Manual Quanser NI-ELVIS Trainer (QNET) Series: QNET Experiment #02: DC Motor Position Control DC Motor Control Trainer (DCMCT) Student Manual Table of Contents 1 Laboratory Objectives1 2 References1 3 DCMCT Plant

More information

PARAMETRIC ANALYSIS OF AUTOMOTIVE MECHATRONIC SYSTEMS

PARAMETRIC ANALYSIS OF AUTOMOTIVE MECHATRONIC SYSTEMS Journal of KONES Powertrain and Transport, Vol. 17, No. 2 2010 PARAMETRIC ANALYSIS OF AUTOMOTIVE MECHATRONIC SYSTEMS Andrzej Puchalski Technical University of Radom, Institute of Maintenance of Vehicles

More information

Power Electronics

Power Electronics Prof. Dr. Ing. Joachim Böcker Power Electronics 3.09.06 Last Name: Student Number: First Name: Study Program: Professional Examination Performance Proof Task: (Credits) (0) (0) 3 (0) 4 (0) Total (80) Mark

More information

FORMULAS FOR MOTORIZED LINEAR MOTION SYSTEMS

FORMULAS FOR MOTORIZED LINEAR MOTION SYSTEMS FOR MOTORIZED LINEAR MOTION SYSTEMS Haydon Kerk Motion Solutions Pittman Motors : 203 756 7441 : 267 933 2105 SYMBOLS AND UNITS Symbol Description Units Symbol Description Units a linear acceleration m/s

More information

Transient Analysis of Separately Excited DC Motor and Braking of DC Motor Using Numerical Technique

Transient Analysis of Separately Excited DC Motor and Braking of DC Motor Using Numerical Technique Journal homepage: www.mjret.in ISSN:2348-6953 Transient Analysis of Separately Excited DC Motor and Braking of DC Motor Using Numerical Technique Pavan R Patil, Javeed Kittur, Pavankumar M Pattar, Prajwal

More information

Definition Application of electrical machines Electromagnetism: review Analogies between electric and magnetic circuits Faraday s Law Electromagnetic

Definition Application of electrical machines Electromagnetism: review Analogies between electric and magnetic circuits Faraday s Law Electromagnetic Definition Application of electrical machines Electromagnetism: review Analogies between electric and magnetic circuits Faraday s Law Electromagnetic Force Motor action Generator action Types and parts

More information

Optimization of the Roomba Vacuum

Optimization of the Roomba Vacuum Optimization of the Roomba Vacuum By Donhoon Lee Marc Zawislak ME 555-06-03 Winter 006 Final Report ABSTRACT In 00 Roomba was introduced to the public to help time constraint consumers in the vacuuming

More information

ENGG4420 LECTURE 7. CHAPTER 1 BY RADU MURESAN Page 1. September :29 PM

ENGG4420 LECTURE 7. CHAPTER 1 BY RADU MURESAN Page 1. September :29 PM CHAPTER 1 BY RADU MURESAN Page 1 ENGG4420 LECTURE 7 September 21 10 2:29 PM MODELS OF ELECTRIC CIRCUITS Electric circuits contain sources of electric voltage and current and other electronic elements such

More information

Chapter 6 Dynamics I: Motion Along a Line

Chapter 6 Dynamics I: Motion Along a Line Chapter 6 Dynamics I: Motion Along a Line Chapter Goal: To learn how to solve linear force-and-motion problems. Slide 6-2 Chapter 6 Preview Slide 6-3 Chapter 6 Preview Slide 6-4 Chapter 6 Preview Slide

More information

The single track model

The single track model The single track model Dr. M. Gerdts Uniersität Bayreuth, SS 2003 Contents 1 Single track model 1 1.1 Geometry.................................... 1 1.2 Computation of slip angles...........................

More information

2005 AP PHYSICS C: ELECTRICITY AND MAGNETISM FREE-RESPONSE QUESTIONS

2005 AP PHYSICS C: ELECTRICITY AND MAGNETISM FREE-RESPONSE QUESTIONS 2005 AP PHYSICS C: ELECTRICITY AND MAGNETISM In the circuit shown above, resistors 1 and 2 of resistance R 1 and R 2, respectively, and an inductor of inductance L are connected to a battery of emf e and

More information

Vector Controlled Power Generation in a Point Absorber Based Wave Energy Conversion System

Vector Controlled Power Generation in a Point Absorber Based Wave Energy Conversion System Vector Controlled Power Generation in a Point Absorber Based Wave Energy Conversion System Jisha Thomas Chandy 1 and Mr. Vishnu J 2 1,2 Electrical & Electronics Dept of Engineering, Sree Buddha College

More information

ECE 5670/6670 Lab 8. Torque Curves of Induction Motors. Objectives

ECE 5670/6670 Lab 8. Torque Curves of Induction Motors. Objectives ECE 5670/6670 Lab 8 Torque Curves of Induction Motors Objectives The objective of the lab is to measure the torque curves of induction motors. Acceleration experiments are used to reconstruct approximately

More information

The basic principle to be used in mechanical systems to derive a mathematical model is Newton s law,

The basic principle to be used in mechanical systems to derive a mathematical model is Newton s law, Chapter. DYNAMIC MODELING Understanding the nature of the process to be controlled is a central issue for a control engineer. Thus the engineer must construct a model of the process with whatever information

More information

SRV02-Series Rotary Experiment # 1. Position Control. Student Handout

SRV02-Series Rotary Experiment # 1. Position Control. Student Handout SRV02-Series Rotary Experiment # 1 Position Control Student Handout SRV02-Series Rotary Experiment # 1 Position Control Student Handout 1. Objectives The objective in this experiment is to introduce the

More information

HCTL Open Int. J. of Technology Innovations and Research HCTL Open IJTIR, Volume 3, May 2013 e-issn: ISBN (Print):

HCTL Open Int. J. of Technology Innovations and Research HCTL Open IJTIR, Volume 3, May 2013 e-issn: ISBN (Print): Computation of Power of a Motor in Electric Vehicle under City Traffic and Dynamic Conditions vikas@cpdm.iisc.ernet.in Abstract In this paper author used a novel method to calculate the power of a motor

More information

Engineering Unit 1: Engineering Principles

Engineering Unit 1: Engineering Principles Write your name here Surname Other names Pearson BTEC Level 3 Extended Certificate, Foundation Diploma, Diploma, Extended Diploma Centre Number Learner Registration Number Engineering Unit 1: Engineering

More information

Characteristics of DC Motors

Characteristics of DC Motors The Birnie Group solar class and website were created with much-appreciated support from the NSF CRCD Program under grants 0203504 and 0509886. Continuing Support from the McLaren Endowment is also greatly

More information

ME 3210 Mechatronics II Laboratory Lab 4: DC Motor Characteristics

ME 3210 Mechatronics II Laboratory Lab 4: DC Motor Characteristics ME 3210 Mechatronics II Laboratory Lab 4: DC Motor Characteristics Introduction Often, due to budget constraints or convenience, engineers must use whatever tools are available to create new or improved

More information

YEAR 10 PHYSICS TIME: 2 hours

YEAR 10 PHYSICS TIME: 2 hours DIRECTORATE FOR QUALITY AND STANDARDS IN EDUCATION Department of Curriculum Management Educational Assessment Unit Track 2 Annual Examinations 2017 YEAR 10 PHYSICS TIME: 2 hours Name: Class: INFORMATION

More information

DYNAMIC ANALYSIS OF DRIVE MECHANISM WITH FUNCTIONAL MODEL

DYNAMIC ANALYSIS OF DRIVE MECHANISM WITH FUNCTIONAL MODEL DYNAMIC ANALYSIS OF DRIVE MECHANISM WITH FUNCTIONAL MODEL Yasunobu Uchino Department of Mechanical Engineering, Hosei University 3-7-2 Kajinocho, Koganei-shi, TOKYO, JAPAN Tatsuhito Aihara Department of

More information

Generators for wind power conversion

Generators for wind power conversion Generators for wind power conversion B. G. Fernandes Department of Electrical Engineering Indian Institute of Technology, Bombay Email : bgf@ee.iitb.ac.in Outline of The Talk Introduction Constant speed

More information

Modeling and Analysis of Brushless Generator Based Biomechanical Energy Harvesting System

Modeling and Analysis of Brushless Generator Based Biomechanical Energy Harvesting System Modeling and Analysis of Brushless Generator Based Biomechanical Energy Harvesting System Ze ev Rubinshtein Department of Electrical and Computer Engineering Ben-Gurion University of the Negev Beer-Sheva,

More information

Analysis of Electric DC Drive Using Matlab Simulink and SimPower Systems

Analysis of Electric DC Drive Using Matlab Simulink and SimPower Systems Analysis of Electric DC Drive Using Matlab Simulink and SimPower Systems Miklosevic, Kresimir ; Spoljaric, Zeljko & Jerkovic, Vedrana Department of Electromechanical Engineering Faculty of Electrical Engineering,

More information

Methods and Tools. Average Operating Point Approach. To lump all engine operating points into one single average operating point.

Methods and Tools. Average Operating Point Approach. To lump all engine operating points into one single average operating point. Methods and Tools Average Operating Point Approach To lump all engine operating points into one single average operating point. Used to estimate the fuel consumption Test cycle needs to be specified when

More information

Electric Driving without Range Anxiety

Electric Driving without Range Anxiety 412 413 Electric Driving without Range Anxiety N O D H I O E A S M I O u e n l O A N G A D F J G I O J E R U I N K O P J E W L S P N Z A D F T O I Schaeffler s E O H O I O Orange-extender A N G A D F J

More information

Overview of motors and motion control

Overview of motors and motion control Overview of motors and motion control. Elements of a motion-control system Power upply High-level controller ow-level controller Driver Motor. Types of motors discussed here; Brushed, PM DC Motors Cheap,

More information

6.013 Lecture 12: Magnetic Forces and Devices

6.013 Lecture 12: Magnetic Forces and Devices 6.013 Lecture 12: Magnetic Forces and Devices A. Overview Magnetic forces are central to a wide array of actuators and sensors. These forces can be calculated using either energy methods or the Lorentz

More information

Vehicle Dynamics CEE 320. Winter 2006 CEE 320 Steve Muench

Vehicle Dynamics CEE 320. Winter 2006 CEE 320 Steve Muench Vehicle Dynamics Steve Muench Outline 1. Resistance a. Aerodynamic b. Rolling c. Grade. Tractive Effort 3. Acceleration 4. Braking Force 5. Stopping Sight Distance (SSD) Main Concepts Resistance Tractive

More information

Second measurement. Measurement of speed of rotation and torque

Second measurement. Measurement of speed of rotation and torque Second measurement Measurement of speed of rotation and torque 1. Introduction The power of motion is the product of torque and angular velocity P = M ω [W ] And since the angular velocity rad ω = 2 π

More information

The principles of conservation of energy and charge apply to electrical circuits. Properties of magnetic fields apply in nature and technology.

The principles of conservation of energy and charge apply to electrical circuits. Properties of magnetic fields apply in nature and technology. UIT E UMMARY KEY COCEPT CHAPTER UMMARY 11 The principles of conservation of energy and charge apply to electrical circuits. Electrical circuits Conventional current and electron flow Current, electrical

More information

Drive-train Basics. Team 1640 Clem McKown - mentor October 2009 (r3)

Drive-train Basics. Team 1640 Clem McKown - mentor October 2009 (r3) Drive-train Basics Team 1640 Clem McKown - mentor October 2009 (r3) Topics What s a Drive-train? Basics Components Propulsion Drivetrain Model Center of Mass Considerations Automobile versus robot tank

More information

ENGINE TORQUE FOR ACCELERATION OF ROTATIONAL MASS IN VEHICLES

ENGINE TORQUE FOR ACCELERATION OF ROTATIONAL MASS IN VEHICLES Journal of KONES Powertrain and Transport, Vol. 17, No. 4 010 ENGINE TORQUE FOR ACCELERATION OF ROTATIONAL MASS IN VEHICLES Aleksander Ubysz Silesian Technical University, Faculty of Transport, Department

More information

Simple Model of an Ideal Wind Turbine and the Betz Limit

Simple Model of an Ideal Wind Turbine and the Betz Limit Simple Model of an Ideal Wind Turbine and the Betz Limit Niall McMahon January 5, 203 A straightforward one-dimensional model of an ideal wind turbine; the model is used to determine a value for the maximum

More information

2012 Assessment Report

2012 Assessment Report 2012 Physics GA 3: Examination 2 GENERAL COMMENTS This examination was the final Unit 4 November examination for the VCE Physics Study Design. From 2013, a single examination covering both Units 3 and

More information

Closed-form Method to Evaluate Bike Braking Performance

Closed-form Method to Evaluate Bike Braking Performance Human Power ejournal, April 4, 13 Closed-form Method to Evaluate Bike Braking Performance Junghsen Lieh, PhD Professor, Mechanical & Materials Engineering Wright State University, Dayton Ohio 45435 USA

More information

Electrical Drives I. Week 3: SPEED-TORQUE characteristics of Electric motors

Electrical Drives I. Week 3: SPEED-TORQUE characteristics of Electric motors Electrical Drives I Week 3: SPEED-TORQUE characteristics of Electric motors b- Shunt DC motor: I f Series and shunt field resistances are connected in shunt (parallel) Exhibits identical characteristics

More information

Applied Electronics and Electrical Machines

Applied Electronics and Electrical Machines School of Electrical and Computer Engineering Applied Electronics and Electrical Machines (ELEC 365) Fall 2015 DC Machines 1 DC Machines Key educational goals: Develop the basic principle of operation

More information

EE155/255 Green Electronics

EE155/255 Green Electronics EE155/255 Green Electronics Electric Motors 10/19/16 Prof. William Dally Computer Systems Laboratory Stanford University This week is flipped Course Logistics Discussion on 10/17, Motors on 10/19, Isolated

More information

Transmission and Gear Shift calculation in VECTO

Transmission and Gear Shift calculation in VECTO Working Paper No. HDH-13-04e (13th HDH meeting, 21/22 March 2013) Transmission and Gear Shift calculation in VECTO (European Tool for HDV CO2 testing) Stefan Hausberger, Martin Rexeis, Raphael Luz Borlaenge,

More information

Centrifugal pumps - characteristics

Centrifugal pumps - characteristics University of Ljubljana Faculty of mechanical engineering Askerceva 6 1000 Ljubljana, Slovenija telefon: 01 477 1 00 faks: 01 51 85 67 www.fs.uni-lj.si e-mail: dekanat@fs.uni-lj.si Laboratory for Heat

More information

Electrical Machines and Energy Systems: Operating Principles (Part 2) SYED A Rizvi

Electrical Machines and Energy Systems: Operating Principles (Part 2) SYED A Rizvi Electrical Machines and Energy Systems: Operating Principles (Part 2) SYED A Rizvi AC Machines Operating Principles: Synchronous Motor In synchronous motors, the stator of the motor has a rotating magnetic

More information

Stepping Motors. Chapter 11 L E L F L D

Stepping Motors. Chapter 11 L E L F L D Chapter 11 Stepping Motors In the synchronous motor, the combination of sinusoidally distributed windings and sinusoidally time varying current produces a smoothly rotating magnetic field. We can eliminate

More information

Modeling of Permanent Magnet Synchronous Generator for Wind Energy Conversion System

Modeling of Permanent Magnet Synchronous Generator for Wind Energy Conversion System Modeling of Permanent Magnet Synchronous Generator for Wind Energy Conversion System T.SANTHANA KRISHNAN Assistant Professor (SG), Dept of Electrical & Electronics, Rajalakshmi Engineering College, Tamilnadu,

More information

Physics 12 Final Exam Review Booklet # 1

Physics 12 Final Exam Review Booklet # 1 Physics 12 Final Exam Review Booklet # 1 1. Which is true of two vectors whose sum is zero? (C) 2. Which graph represents an object moving to the left at a constant speed? (C) 3. Which graph represents

More information