Chapter 5 Three phase induction machine (1) Shengnan Li
|
|
- Vernon Black
- 6 years ago
- Views:
Transcription
1 Chapter 5 Three phase induction machine (1) Shengnan Li
2 Main content Structure of three phase induction motor Operating principle of three phase induction motor Rotating magnetic field Graphical representation Analytical representation Induced rotor voltage and current
3 Introduction Three-phase induction machine are the most common and frequently encountered machines in industry simple design, rugged, low-price, easy maintenance wide range of power ratings: fractional horsepower to 10 MW Mostly used as motor instead of generator run essentially as constant speed from no-load to full load Its speed depends on the frequency of the power source not easy to have variable speed control requires a variable-frequency power-electronic drive for optimal speed control 3
4 Construction- stator Consisting of a steel frame that supports a hollow, cylindrical core Core, constructed from stacked laminations (why?), having a number of evenly spaced slots, providing the space for the stator winding
5 Construction - rotor composed of punched laminations, stacked to create a series of rotor slots, providing space for the rotor winding Copper bars shorted together at the ends by two copper rings, forming a squirrel-cage shaped circuit (squirrel-cage) (not cover in this course) conventional 3-phase windings made of insulated wire (wound-rotor), similar to the winding on the stator
6 Rotating magnetic field - Graphical method Provided by stator winding current Balanced three phase windings, mechanically displaced 120 degrees form each other, fed by balanced three phase source t0
7 Rotating magnetic field -Graphical method t1
8 Rotating magnetic field- field-graphical method A rotating magnetic field with constant magnitude is produced, rotating with a speed n sync 120 f e P rpm Where f e is the supply frequency ; P is the no. of poles and n sync is called the synchronous speed in rpm (revolutions per minute)
9 Rotating magnetic field - Analytical method Each phase winding provide MMF not only along winding axis but also along angle θ: F a θ, t = Ni a t cos θ F b θ, t = Ni b t cos(θ 120 ) ቑ F c θ, t = Ni c t cos(θ 240 ) Where i a t, i b t, i c t are balanced three phase stator currents: i a t = I m cos ω e t i b t = I m cos(ω e t 120 ) ቑ i c t = I m cos(ω e t 240 ) Where ω e is the angular frequency of the input power
10 Rotating magnetic field - Analytical method F θ, t = F a θ, t + F b θ, t +F c θ, t = Ni a t cos θ + Ni b t cos θ Ni c t cos(θ 240 ) = NI m cos ω e t cosθ + NI m cos(ω e t 120 )cos(θ 120 ) +NI m cos(ω e t 240 )cos(θ 240 ) = 3 2 NI mcos(ω e t θ) Motion of resultant MMF
11 Induced voltage on Rotor- rotor standstill Flux density distribution in air gap: B θ, t = B m cos ω e t θ The air gap flux per pole is: p (t) = න π/2 π/2 B θ, t lrdθ = 2B m lr cos ω e t Where l is the axial length; r is the radius of the stator at the air gap Since rotor stand still, the voltage induced in rotor winding aa is: e a = N d p(t) = 2ω dt e NB m lr sin ω e t = E m sinω e t e b = E m sin ω e t 120 e c = E m sin ω e t 240 Air gap flux density distribution
12 Starting torque - rotor stand still Since rotor is short-circuited, current establishes i ar t = e a t Z r = I mr sin ω e t γ i br t = I mr sin(ω e t γ 120 ) i cr t = I mr sin(ω e t γ 240 ) Electromagnetic force (Lorentz force) on rotor conductors: Ԧf = Ԧi B l The magnitude of the forces on rotor winding a,b,c are: f ar (t) = I mr sin ω e t γ B m cos ω e t θ l = 1 2 I mrb m l sin 2ω e t γ θ + sin θ γ θ f br t = 1 2 I mrb m l sin 2ω e t γ θ sin θ γ f br (t) = 1 2 I mrb m l(sin 2ω e t γ θ sin(θ γ)) The direction of all the forces are clock wise. The torques on each conductions add together T = 3I mr B m lsin(θ γ) No time component, constant torque, rotor start to rotate from standstill
13 Induced voltage and toque rotor rotating If rotor rotates at speed ωr, the relative speed between the rotating field and the rotor is: ω e ω r Re-derive the induced voltage: E m is propotional to (ω e ω m ) e a = E m sin(ω e ω r )t e b = E m sin (ω e ω r )t 120 e c = E m sin (ω e ω r )t 240 Torque has the same form of expression, but the angle will be different T = 3I mr B m lsin θ γ I mr is propotional to (ω e ω m )
14 Induced voltage and toque synchronous speed If rotor rotates at speed ωe, the relative speed between the rotating field and the rotor is zero d is zero. No voltage induced in the rotor, no current induced in the dt rotor No force and torque generated No load condition
15 Induction motor speed IM runs at a speed lower than the synchronous speed The difference between the motor speed and the synchronous speed is called the Slip n n n slip sync m Where n slip = slip speed n sync = speed of the magnetic field n m = mechanical shaft speed of the motor
16 The Slip Where s is the slip s n sync n sync Notice that : if the rotor runs at synchronous speed s = 0 if the rotor is stationary s = 1 Slip may be expressed as a percentage by multiplying the above eq. by 100, notice that the slip is a ratio and doesn t have units n m
Electric Machines I Three Phase Induction Motor. Dr. Firas Obeidat
Electric Machines I Three Phase Induction Motor Dr. Firas Obeidat 1 Table of contents 1 General Principles 2 Construction 3 Production of Rotating Field 4 Why Does the Rotor Rotate 5 The Slip and Rotor
More informationControl of Wind Turbine Generators. James Cale Guest Lecturer EE 566, Fall Semester 2014 Colorado State University
Control of Wind Turbine Generators James Cale Guest Lecturer EE 566, Fall Semester 2014 Colorado State University Review from Day 1 Review Last time, we started with basic concepts from physics such as
More informationPrince Sattam bin Abdulaziz University College of Engineering. Electrical Engineering Department EE 3360 Electrical Machines (II)
Chapter # 4 Three-Phase Induction Machines 1- Introduction (General Principles) Generally, conversion of electrical power into mechanical power takes place in the rotating part of an electric motor. In
More informationInduction Motors. The single-phase induction motor is the most frequently used motor in the world
Induction Motor The single-phase induction motor is the most frequently used motor in the world Most appliances, such as washing machines and refrigerators, use a single-phase induction machine Highly
More informationElectrical Machines and Energy Systems: Operating Principles (Part 1) SYED A Rizvi
Electrical Machines and Energy Systems: Operating Principles (Part 1) SYED A Rizvi AC Machines Operating Principles: Rotating Magnetic Field The key to the functioning of AC machines is the rotating magnetic
More informationRevision 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 informationSynchronous Machines
Synchronous machine 1. Construction Generator Exciter View of a twopole round rotor generator and exciter. A Stator with laminated iron core C Slots with phase winding B A B Rotor with dc winding B N S
More informationAn Introduction to Electrical Machines. P. Di Barba, University of Pavia, Italy
An Introduction to Electrical Machines P. Di Barba, University of Pavia, Italy Academic year 0-0 Contents Transformer. An overview of the device. Principle of operation of a single-phase transformer 3.
More informationMassachusetts 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 informationJRE SCHOOL OF Engineering
JRE SCHOOL OF Engineering Class Test-1 Examinations September 2014 Subject Name Electromechanical Energy Conversion-II Subject Code EEE -501 Roll No. of Student Max Marks 30 Marks Max Duration 1 hour Date
More informationThe synchronous machine (detailed model)
ELEC0029 - Electric Power System Analysis The synchronous machine (detailed model) Thierry Van Cutsem t.vancutsem@ulg.ac.be www.montefiore.ulg.ac.be/~vct February 2018 1 / 6 Objectives The synchronous
More informationRevision 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 informationCHAPTER 5 SIMULATION AND TEST SETUP FOR FAULT ANALYSIS
47 CHAPTER 5 SIMULATION AND TEST SETUP FOR FAULT ANALYSIS 5.1 INTRODUCTION This chapter describes the simulation model and experimental set up used for the fault analysis. For the simulation set up, the
More informationDefinition 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 informationLesson 17: Synchronous Machines
Lesson 17: Synchronous Machines ET 332b Ac Motors, Generators and Power Systems Lesson 17_et332b.pptx 1 Learning Objectives After this presentation you will be able to: Explain how synchronous machines
More informationIntroduction to Synchronous. Machines. Kevin Gaughan
Introduction to Synchronous Machines Kevin Gaughan The Synchronous Machine An AC machine (generator or motor) with a stator winding (usually 3 phase) generating a rotating magnetic field and a rotor carrying
More information3 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 informationROEVER COLLEGE OF ENGINEERING & TECHNOLOGY ELAMBALUR, PERAMBALUR DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING ELECTRICAL MACHINES I
ROEVER COLLEGE OF ENGINEERING & TECHNOLOGY ELAMBALUR, PERAMBALUR-621220 DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING ELECTRICAL MACHINES I Unit I Introduction 1. What are the three basic types
More informationUNIT I INTRODUCTION Part A- Two marks questions
ROEVER COLLEGE OF ENGINEERING & TECHNOLOGY ELAMBALUR, PERAMBALUR-621220 DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING DESIGN OF ELECTRICAL MACHINES UNIT I INTRODUCTION 1. Define specific magnetic
More informationUniversity of Jordan Faculty of Engineering & Technology Electric Power Engineering Department
University of Jordan Faculty of Engineering & Technology Electric Power Engineering Department EE471: Electrical Machines-II Tutorial # 2: 3-ph Induction Motor/Generator Question #1 A 100 hp, 60-Hz, three-phase
More informationLAB REPORT: THREE-PHASE INDUCTION MACHINE
LAB REPORT: THREE-PHASE INDUCTION MACHINE ANDY BENNETT 1. Summary This report details the operation, modelling and characteristics of a three-phase induction machine. It attempts to provide a concise overview
More informationTransient Analysis of Three Phase Squirrel Cage Induction Machine using Matlab
Transient Analysis of Three Phase Squirrel Cage Induction Machine using Matlab Mukesh Kumar Arya*, Dr.Sulochana Wadhwani** *( Department of Electrical Engineering, Madhav Institute of Technology & Science,
More informationEEE3405 ELECTRICAL ENGINEERING PRINCIPLES 2 - TEST
ATTEMPT ALL QUESTIONS (EACH QUESTION 20 Marks, FULL MAKS = 60) Given v 1 = 100 sin(100πt+π/6) (i) Find the MS, period and the frequency of v 1 (ii) If v 2 =75sin(100πt-π/10) find V 1, V 2, 2V 1 -V 2 (phasor)
More informationLecture 9: Space-Vector Models
1 / 30 Lecture 9: Space-Vector Models ELEC-E8405 Electric Drives (5 ECTS) Marko Hinkkanen Autumn 2017 2 / 30 Learning Outcomes After this lecture and exercises you will be able to: Include the number of
More informationLecture Set 8 Induction Machines
Lecture Set 8 Induction Machine S.D. Sudhoff Spring 2018 Reading Chapter 6, Electromechanical Motion Device, Section 6.1-6.9, 6.12 2 Sample Application Low Power: Shaded pole machine (mall fan) Permanent
More informationElectrical 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 informationChapter 4. Synchronous Generators. Basic Topology
Basic Topology Chapter 4 ynchronous Generators In stator, a three-phase winding similar to the one described in chapter 4. ince the main voltage is induced in this winding, it is also called armature winding.
More informationCoupled magnetic equivalent circuits and the analytical solution in the air-gap of squirrel cage induction machines
Galley Proof 1/02/2007; 16:24 File: jae772.tex; BOKCTP/Haina p. 1 International Journal of Applied Electromagnetics and Mechanics 21 (2005) 1 6 1 IOS Press Coupled magnetic equivalent circuits and the
More informationAnalytical Model for Sizing the Magnets of Permanent Magnet Synchronous Machines
Journal of Electrical Engineering 3 (2015) 134-141 doi: 10.17265/2328-2223/2015.03.004 D DAVID PUBLISHING Analytical Model for Sizing Magnets of Permanent Magnet Synchronous Machines George Todorov and
More informationTime-Harmonic Modeling of Squirrel-Cage Induction Motors: A Circuit-Field Coupled Approach
Time-Harmonic Modeling of Squirrel-Cage Induction Motors: A Circuit-Field Coupled Approach R. Escarela-Perez 1,3 E. Melgoza 2 E. Campero-Littlewood 1 1 División de Ciencias Básicas e Ingeniería, Universidad
More informationINDUCTION MOTOR MODEL AND PARAMETERS
APPENDIX C INDUCTION MOTOR MODEL AND PARAMETERS C.1 Dynamic Model of the Induction Motor in Stationary Reference Frame A three phase induction machine can be represented by an equivalent two phase machine
More informationKeywords: Electric Machines, Rotating Machinery, Stator faults, Fault tolerant control, Field Weakening, Anisotropy, Dual rotor, 3D modeling
Analysis of Electromagnetic Behavior of Permanent Magnetized Electrical Machines in Fault Modes M. U. Hassan 1, R. Nilssen 1, A. Røkke 2 1. Department of Electrical Power Engineering, Norwegian University
More informationDigital Control of Electric Drives. Induction Motor Vector Control. Czech Technical University in Prague Faculty of Electrical Engineering
Digital Control of Electric Drives Induction Motor Vector Control Czech Technical University in Prague Faculty of Electrical Engineering BE1M14DEP O. Zoubek, J. Zdenek 1 Induction Motor Control Methods
More informationEqual Pitch and Unequal Pitch:
Equal Pitch and Unequal Pitch: Equal-Pitch Multiple-Stack Stepper: For each rotor stack, there is a toothed stator segment around it, whose pitch angle is identical to that of the rotor (θs = θr). A stator
More informationModeling Free Acceleration of a Salient Synchronous Machine Using Two-Axis Theory
1 Modeling ree Acceleration of a Salient Synchronous Machine Using Two-Axis Theory Abdullah H. Akca and Lingling an, Senior Member, IEEE Abstract This paper investigates a nonlinear simulation model of
More informationParameter Estimation of Three Phase Squirrel Cage Induction Motor
International Conference On Emerging Trends in Mechanical and Electrical Engineering RESEARCH ARTICLE OPEN ACCESS Parameter Estimation of Three Phase Squirrel Cage Induction Motor Sonakshi Gupta Department
More informationECEN 667 Power System Stability Lecture 18: Voltage Stability, Load Models
ECEN 667 Power System Stability Lecture 18: Voltage Stability, Load Models Prof. Tom Overbye Dept. of Electrical and Computer Engineering Texas A&M University, overbye@tamu.edu 1 Announcements Read Chapter
More informationApplied 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 informationTexas 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 informationCHAPTER 3 INFLUENCE OF STATOR SLOT-SHAPE ON THE ENERGY CONSERVATION ASSOCIATED WITH THE SUBMERSIBLE INDUCTION MOTORS
38 CHAPTER 3 INFLUENCE OF STATOR SLOT-SHAPE ON THE ENERGY CONSERVATION ASSOCIATED WITH THE SUBMERSIBLE INDUCTION MOTORS 3.1 INTRODUCTION The electric submersible-pump unit consists of a pump, powered by
More informationChapter 6. Induction Motors. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Chapter 6 Induction Motors 1 The Development of Induced Torque in an Induction Motor Figure 6-6 The development of induced torque in an induction motor. (a) The rotating stator field B S induces a voltage
More informationMeasurements of a 37 kw induction motor. Rated values Voltage 400 V Current 72 A Frequency 50 Hz Power 37 kw Connection Star
Measurements of a 37 kw induction motor Rated values Voltage 4 V Current 72 A Frequency 5 Hz Power 37 kw Connection Star Losses of a loaded machine Voltage, current and power P = P -w T loss in Torque
More informationMAHARASHTRA STATE BOARD OF TECHNICAL EDUCATION
Important Instructions to examiners: 1) The answers should be examined by key words and not as word-to-word as given in the model answer scheme. 2) The model answer and the answer written by candidate
More informationBasic parts of an AC motor : rotor, stator, The stator and the rotor are electrical
INDUCTION MOTO 1 CONSTUCTION Baic part of an AC motor : rotor, tator, encloure The tator and the rotor are electrical circuit that perform a electromagnet. CONSTUCTION (tator) The tator - tationary part
More informationInternational Journal of Advance Engineering and Research Development
Scientific Journal of Impact Factor (SJIF): 4.7 International Journal of Advance Engineering and Research Development Volume 4, Issue 5, May-07 e-issn (O): 348-4470 p-issn (P): 348-6406 Mathematical modeling
More informationPerformance analysis of variable speed multiphase induction motor with pole phase modulation
ARCHIVES OF ELECTRICAL ENGINEERING VOL. 65(3), pp. 425-436 (2016) DOI 10.1515/aee-2016-0031 Performance analysis of variable speed multiphase induction motor with pole phase modulation HUIJUAN LIU, JUN
More informationUnified Torque Expressions of AC Machines. Qian Wu
Unified Torque Expressions of AC Machines Qian Wu Outline 1. Review of torque calculation methods. 2. Interaction between two magnetic fields. 3. Unified torque expression for AC machines. Permanent Magnet
More informationModelling and Simulating a Three-Phase Induction Motor
MURDOCH UNIVERSITY SCHOOL OF ENGINEERING AND INFORMATION TECHNOLOGY Modelling and Simulating a Three-Phase Induction Motor ENG460 Engineering Thesis Benjamin Willoughby 3/3/2014 Executive Summary This
More informationAnalytical and numerical computation of the no-load magnetic field in induction motors
Analytical and numerical computation of the no-load induction motors Dan M. Ionel University of Glasgow, Glasgow, Scotland, UK and Mihai V. Cistelecan Research Institute for Electrical Machines, Bucharest
More informationGenerators 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 informationPESIT Bangalore South Campus Hosur road, 1km before Electronic City, Bengaluru -100 Department of Electronics & Communication Engineering
QUESTION PAPER INTERNAL ASSESSMENT TEST 2 Date : /10/2016 Marks: 0 Subject & Code: BASIC ELECTRICAL ENGINEERING -15ELE15 Sec : F,G,H,I,J,K Name of faculty : Dhanashree Bhate, Hema B, Prashanth V Time :
More informationHow an Induction Motor Works by Equations (and Physics)
How an Induction Motor Works by Equations (and Physics) The magnetic field in the air gap from the voltage applied to the stator: The stator has three sets of windings that are aligned at 10 degrees to
More informationModeling of Symmetrical Squirrel Cage Induction Machine with MatLab Simulink
Modeling of Symmetrical Squirrel Cage Induction Machine with MatLab Simulink Marcus Svoboda *, Lucian Tutelea *, Gheorghe Madescu **, Marius Biriescu *, Martian Mot ** * University POLITEHNICA Timisoara/Electrical
More informationAnalytical Calculation of Air Gap Magnetic Field Distribution in Vernier Motor
IEEE PEDS 017, Honolulu, USA 1-15 June 015 Analytical Calculation of Air Gap Magnetic Field Distribution in Vernier Motor Hyoseok Shi, Noboru Niguchi, and Katsuhiro Hirata Department of Adaptive Machine
More informationCHAPTER 8 DC MACHINERY FUNDAMENTALS
CHAPTER 8 DC MACHINERY FUNDAMENTALS Summary: 1. A Simple Rotating Loop between Curved Pole Faces - The Voltage Induced in a Rotating Loop - Getting DC voltage out of the Rotating Loop - The Induced Torque
More informationSTAR-CCM+ and SPEED for electric machine cooling analysis
STAR-CCM+ and SPEED for electric machine cooling analysis Dr. Markus Anders, Dr. Stefan Holst, CD-adapco Abstract: This paper shows how two well established software programs can be used to determine the
More informationProceedings of the 6th WSEAS/IASME Int. Conf. on Electric Power Systems, High Voltages, Electric Machines, Tenerife, Spain, December 16-18,
Proceedings of the 6th WSEAS/IASME Int. Conf. on Electric Power Systems, High Voltages, Electric Machines, Tenerife, Spain, December 16-18, 2006 196 A Method for the Modeling and Analysis of Permanent
More informationELECTRICAL FUNDAMENTALS
Part 66 Cat. B1 / B2 Module 3 ELECTRICAL FUNDAMENTALS Vilnius-2017 Issue 1. Effective date 2017-02-28 FOR TRAINING PURPOSES ONLY Page 1 of 280 If we look at electronic configuration of a carbon C atom,
More informationInternational Journal of Advance Engineering and Research Development SIMULATION OF FIELD ORIENTED CONTROL OF PERMANENT MAGNET SYNCHRONOUS MOTOR
Scientific Journal of Impact Factor(SJIF): 3.134 e-issn(o): 2348-4470 p-issn(p): 2348-6406 International Journal of Advance Engineering and Research Development Volume 2,Issue 4, April -2015 SIMULATION
More informationUNIT-I INTRODUCTION. 1. State the principle of electromechanical energy conversion.
UNIT-I INTRODUCTION 1. State the principle of electromechanical energy conversion. The mechanical energy is converted in to electrical energy which takes place through either by magnetic field or electric
More informationLecture 7: Synchronous Motor Drives
1 / 46 Lecture 7: Synchronous Motor Drives ELEC-E8402 Control of Electric Drives and Power Converters (5 ECTS) Marko Hinkkanen Spring 2017 2 / 46 Learning Outcomes After this lecture and exercises you
More informationMotor Info on the WWW Motorola Motors DC motor» /MOTORDCTUT.
Motor Info on the WWW Motorola Motors DC motor» http://www.freescale.com/files/microcontrollers/doc/train_ref_material /MOTORDCTUT.html Brushless DC motor» http://www.freescale.com/files/microcontrollers/doc/train_ref_material
More informationSimulation of 3-Phase 2- Stator Induction Motor Using MATLAB Platform
International Journal of Alied Engineering Research ISSN 0973-456 Volume 3, Number (08). 9437-944 Simulation of 3-Phase - Stator Induction Motor Using MATLAB Platform Pallavi R.Burande Deartment of Electrical
More informationDevelopment and analysis of radial force waves in electrical rotating machines
DOI: 10.24352/UB.OVGU-2017-098 TECHNISCHE MECHANIK, 37, 2-5, (2017), 218 225 submitted: June 20, 2017 Development and analysis of radial force waves in electrical rotating machines S. Haas, K. Ellermann
More informationLecture 1: Induction Motor
1 / 22 Lecture 1: Induction Motor ELEC-E8402 Control of Electric Drives and Power Converters (5 ECTS) Marko Hinkkanen Aalto University School of Electrical Engineering Spring 2016 2 / 22 Learning Outcomes
More informationFrom now, we ignore the superbar - with variables in per unit. ψ ψ. l ad ad ad ψ. ψ ψ ψ
From now, we ignore the superbar - with variables in per unit. ψ 0 L0 i0 ψ L + L L L i d l ad ad ad d ψ F Lad LF MR if = ψ D Lad MR LD id ψ q Ll + Laq L aq i q ψ Q Laq LQ iq 41 Equivalent Circuits for
More informationMathematical Modelling of Permanent Magnet Synchronous Motor with Rotor Frame of Reference
Mathematical Modelling of Permanent Magnet Synchronous Motor with Rotor Frame of Reference Mukesh C Chauhan 1, Hitesh R Khunt 2 1 P.G Student (Electrical),2 Electrical Department, AITS, rajkot 1 mcchauhan1@aits.edu.in
More informationTitle use of Bi-2223/Ag squirrel-cage rot IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY (2006), 16(2): 14.
Title Fabrication and characteristics of use of Bi-2223/Ag squirrel-cage rot Author(s) Nakamura, T; Miyake, H; Ogama, Y; M Hoshino, T Citation IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY (2006), 16(2):
More informationHow an Induction Motor Works by Equations (and Physics)
How an Induction Motor Works by Equations (and Physics) Introduction: Induction motors are the commonest type of motor and account for a very large proportion of heavy duty motors. izes vary from fractional
More informationMutual Inductance. The field lines flow from a + charge to a - change
Capacitors Mutual Inductance Since electrical charges do exist, electric field lines have a starting point and an ending point. For example, if you have a + and a - change, the field lines would look something
More informationChapter # 1 Three-Phase Winding, EMF's and MMF's
Chapter # 1 Three-Phase Winding, EMF's and MMF's 1. Introduction standard A.C. generators or alternators (as they are usually called) operate on the same fundamental principles of electromagnetic induction
More information9. Operation Principle of the Electric Machines
9. Operation Principle of the Electric Machines J Electric Machines Operation Principle Ø An electric achine consists of two electric circuits coupled by eans of a agnetic flu, that is linked with both
More informationPROBLEM SOLUTIONS: Chapter 4
48 PROBLEM SOLUTIONS: Chapter 4 Problem 4.1 ω m = 100 π/30 = 40π rad/sec part (b): 60 Hz; 10π rad/sec part (c): 100 5/6 = 1000 r/min Problem 4. The voltages in the remaining two phases can be expressed
More informationZero speed sensorless drive capability of fractional slot inset PM machine
Zero speed sensorless drive capability of fractional slot inset PM Adriano Faggion Nicola Bianchi Silverio Bolognani Emanuele Fornasiero Electric Drives Laboratory Department of Industrial Engineering
More informationChapter 9: Single- and Two-Phase Motors *
OpenStax-CNX module: m28327 1 Chapter 9: Single- and Two-Phase Motors * NGUYEN Phuc This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 3.0 Single- and Two-Phase
More informationSynchronous 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 informationOverview: Induction Motors. Review Questions. Why the Rotor Moves: Motor Speed
Overview: nduction Motor Motor operation & Slip Speed-torque relationhip Equivalent circuit model Tranformer Motor efficiency Starting induction motor Smith College, EGR 35 ovember 5, 04 Review Quetion
More informationReluctance Synchronous Machine with a Particular Cageless Segmental Rotor
Reluctance Synchronous Machine with a Particular Cageless Segmental Rotor I.A. Viorel 1, I. Husain 2, Ioana Chişu 1, H.C. Hedeşiu 1, G. Madescu 3 and L. Szabó 1 1 Dept. of Electrical Machines, Technical
More informationDynamic Modeling of Surface Mounted Permanent Synchronous Motor for Servo motor application
797 Dynamic Modeling of Surface Mounted Permanent Synchronous Motor for Servo motor application Ritu Tak 1, Sudhir Y Kumar 2, B.S.Rajpurohit 3 1,2 Electrical Engineering, Mody University of Science & Technology,
More informationA Multirate Field Construction Technique for Efficient Modeling of the Fields and Forces within Inverter-Fed Induction Machines
A Multirate Field Construction Technique for Efficient Modeling of the Fields and Forces within Inverter-Fed Induction Machines Dezheng Wu, Steve Peare School of Electrical and Computer Engineering Purdue
More informationMODELING AND HIGH-PERFORMANCE CONTROL OF ELECTRIC MACHINES
MODELING AND HIGH-PERFORMANCE CONTROL OF ELECTRIC MACHINES JOHN CHIASSON IEEE PRESS ü t SERIES ON POWER ENGINEERING IEEE Press Series on Power Engineering Mohamed E. El-Hawary, Series Editor The Institute
More information338 Applied Electromagnetic Engineering for Magnetic, Superconducting, Multifunctional and Nano Materials
Materials Science Forum Online: 2014-08-11 ISSN: 1662-9752, Vol. 792, pp 337-342 doi:10.4028/www.scientific.net/msf.792.337 2014 Trans Tech Publications, Switzerland Torque Characteristic Analysis of an
More informationDoubly salient reluctance machine or, as it is also called, switched reluctance machine. [Pyrhönen et al 2008]
Doubly salient reluctance machine or, as it is also called, switched reluctance machine [Pyrhönen et al 2008] Pros and contras of a switched reluctance machine Advantages Simple robust rotor with a small
More informationLoss analysis of a 1 MW class HTS synchronous motor
Journal of Physics: Conference Series Loss analysis of a 1 MW class HTS synchronous motor To cite this article: S K Baik et al 2009 J. Phys.: Conf. Ser. 153 012003 View the article online for updates and
More informationAC Electric Machines. Objectives. Introduction. 1. To understand what the meant by the term ac circuit. 2. To understand how to analyze ac circuits.
AC Electric Machines Objectives 1. To understand what the meant by the term ac circuit.. To understand how to analyze ac circuits. 3. To understand the basic construction and operation of an ac machine.
More informationMassachusetts Institute of Technology Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science 6.685 Electric Machines Class Notes 4: Elementary Synchronous Machine Models September 14, 2005 c 2005 James
More informationBehaviour of synchronous machine during a short-circuit (a simple example of electromagnetic transients)
ELEC0047 - Power system dynamics, control and stability (a simple example of electromagnetic transients) Thierry Van Cutsem t.vancutsem@ulg.ac.be www.montefiore.ulg.ac.be/~vct October 2018 1 / 25 Objectives
More informationIntroduction. Energy is needed in different forms: Light bulbs and heaters need electrical energy Fans and rolling miles need mechanical energy
Introduction Energy is needed in different forms: Light bulbs and heaters need electrical energy Fans and rolling miles need mechanical energy What does AC and DC stand for? Electrical machines Motors
More informationA Status Review OF IPM MOTOR DRIVES FOR ELECTRIC SUBMERSIBLE PUMP IN HARSH COLD OCEANS
1 A Status Review OF IPM MOTOR DRIVES FOR ELECTRIC SUBMERSIBLE PUMP IN HARSH COLD OCEANS M. A. Rahman Memorial University of Newfoundland St. John s, NL, Canada, A1B 3X5 arahman@mun.ca 2 PES 2015 3 Outlines
More informationUJET VOL. 2, NO. 2, DEC Page 8
UMUDIKE JOURNAL OF ENGINEERING AND TECHNOLOGY (UJET) VOL. 2, NO. 2, DEC 2016 PAGE 8-15 FINITE ELEMENT ANALYSIS OF A 7.5KW ASYNCHRONOUS MOTOR UNDER INTERMITTENT LOADING. Abunike, E. C. and Okoro, O. I.
More informationELECTRICALMACHINES-I QUESTUION BANK
ELECTRICALMACHINES-I QUESTUION BANK UNIT-I INTRODUCTION OF MAGNETIC MATERIAL PART A 1. What are the three basic rotating Electric machines? 2. Name the three materials used in machine manufacture. 3. What
More informationGeneralized Theory of Electrical Machines- A Review
Generalized Theory of Electrical Machines- A Review Dr. Sandip Mehta Department of Electrical and Electronics Engineering, JIET Group of Institutions, Jodhpur Abstract:-This paper provides an overview
More information4 Finite Element Analysis of a three-phase PM synchronous machine
Assignment 4 1-1 4 Finite Element Analysis of a three-phase PM synchronous machine The goal of the third assignment is to extend your understanding on electromagnetic analysis in FEM. This assignment is
More informationDesign of Synchronous Machines
Design of Synchronous Machines Introduction Synchronous machines are AC machines that have a field circuit supplied by an external DC source. Synchronous machines are having two major parts namely stationary
More informationPARAMETER SENSITIVITY ANALYSIS OF AN INDUCTION MOTOR
HUNGARIAN JOURNAL OF INDUSTRIAL CHEMISTRY VESZPRÉM Vol. 39(1) pp. 157-161 (2011) PARAMETER SENSITIVITY ANALYSIS OF AN INDUCTION MOTOR P. HATOS, A. FODOR, A. MAGYAR University of Pannonia, Department of
More informationECE 422/522 Power System Operations & Planning/ Power Systems Analysis II 2 Synchronous Machine Modeling
ECE 422/522 Power System Operations & Planning/ Power Systems Analysis II 2 Synchronous achine odeling Spring 214 Instructor: Kai Sun 1 Outline Synchronous achine odeling Per Unit Representation Simplified
More informationSteady State Modeling of Doubly Fed Induction Generator
Steady State Modeling of Douly Fed Induction Generator Bhola Jha 1, Dr. K. R. M Rao 2 1 Dept. of Electrical Engg., G. B. Pant Engg. College, Pauri-Garhwal, India 2 Dept. of Electrical Engg., M. J. College
More informationMathematical MATLAB Model and Performance Analysis of Asynchronous Machine
Mathematical MATLAB Model and Performance Analysis of Asynchronous Machine Bikram Dutta 1, Suman Ghosh 2 Assistant Professor, Dept. of EE, Guru Nanak Institute of Technology, Kolkata, West Bengal, India
More informationSynchronous Machines
Synchronous Machines Synchronous generators or alternators are used to convert mechanical power derived from steam, gas, or hydraulic-turbine to ac electric power Synchronous generators are the primary
More informationAC Induction Motor Stator Resistance Estimation Algorithm
7th WSEAS International Conference on Electric Power Systems, High Voltages, Electric Machines, Venice, Italy, November 21-23, 27 86 AC Induction Motor Stator Resistance Estimation Algorithm PETR BLAHA
More information