LINE FLOW ANALYSIS OF IEEE BUS SYSTEM WITH THE LOAD SENSITIVITY FACTOR
|
|
- Clarissa Daniels
- 6 years ago
- Views:
Transcription
1 LINE FLOW ANALYSIS OF IEEE BUS SYSTEM WITH THE LOAD SENSITIVITY FACTOR Puneet Sharma 1, Jyotsna Mehra 2, Virendra Kumar 3 1,2,3 M.Tech Research scholar, Galgotias University, Greater Noida, India Abstract In this paper, line flow analysis coding is been drawn by the help of Newton-Raphson (NR) algorithm for the IEEE 30 bus system. Further in IEEE 30 bus system load has been increased to 135% with an increment of 5% in each step. This change in load gives the node voltage load dependency factor (NVLDF) and line loss load dependency factor (LLLDF). By the help of NVLDF and LLLDF priority list has been made with respect to load sensitivity factor so that system performance index [1] in terms of voltage profile could be obtained. All the system performance study is made under steady- state condition. MATLAB R2013a has been used for calculation purpose. Keywords flow analysis, Newton-Raphson algorithm, Load sensitivity factor, System performance index, Voltage profile. I INTRODUCTION flow analysis (LFA) is used to mae sure that electrical power transfer from generator stations to consumers end through the grid system in reliable and economical form. Conventional techniques [2] for line flow analysis problem are iterative mathematical method lie the Newton-Raphson (NR) or the Gauss-Seidel (GS) methods. An engineer is always concerned about economical condition of the system operation. For the mighty interconnected grid system, the power shortage results continuous hie in prices. Thus, it is the priority of engineer to control this continuous hie. Another major problem is economic load dispatch in an optimized manner as it is directly related with load demands. For economically optimized operation of interconnected grid system modern system theory and optimization techniques are being applied with the optimized generation cost function. Through the line flow study, the voltage magnitude and angle at each bus under the steady state can be obtained. The steady state line flow in interconnected networ is represented in nonlinear algebraic equations [3]. And, for solving them iterative method is needed. For system to operate in stable condition the voltage has to be maintained within its voltage stability limit. In this paper, NR method is been used for solution of the line flow equations. By the help of voltage and angle at respective bus, the real and reactive power flow through each line can be computed. And further, the difference between each line flow from the sending end to receiving end is calculated which called as line losses. Furthermore, from increasing the load at each node to 140% with an increment of 5%, the system operation in over-load condition could be studied. Based upon, the over load system the priority list is been created which is very much beneficial to determine the most sensitive node and most sensitive line with respect to change of load. II LINE FLOW ANALYSIS flow analysis (LFA) is very important tool for analysis of power systems [4] which is used at operational as well as planning stages of the system, lie adding and installation of new generation station, load balancing in dynamic running condition and transmission lines site selection. The LFA gives the voltage and phase angle at each bus which is further used to determine the power injection at all the busses along with power flow through interconnected nodes. All these system parameter obtained values are needed for determining the optimal location as well as optimal capacity of proposed generation station, substation and new lines. In order to avoid the system unbalance condition, the voltage should be maintained within its tolerance limit with minimized line transmission losses. In this paper, firstly NR method and its application is been discussed. 2.1 BUS CLASSIFICATION: A bus [4][6] is the inter-connection point of the lines, loads and generators. These interconnected elements could be one or more. In electric power system each bus has 4 system variables, which are voltage magnitude, voltage phase angle, active power and reactive power in line flow 898
2 problem. For solving the line flow equation of the system, out of these four variables two are made constant and two are treated as variable. Bus categories are been made on the basis of the constant parameters. Step 5-Source current is determined between the nodes 1 to n. Step 6- Final node voltage equation: I Y * V bus bus bus 2.3 NR method and line flow analysis (LFA) [5][7]:- Step1: Assume, initial point p s, Vs= 1+j0.0. V p =1+j0.0 for p= 1, 2.n, Load bus: No generator is attached to the bus. The real and reactive power is specified at each node. Voltage and phase angle are the uncontrolled variable. It is required to specify only real power demand (Pd) and reactive power demand (Qd) at such bus as at a load bus voltage can be allowed to vary within the permissible values. Generator bus or voltage controlled bus: Here the voltage magnitude corresponding to the generator voltage and real power (Pg) corresponds to its rating are specified. Reactive power generation (Qg) and voltage phase angle are treated as uncontrolled variable for the line flow analysis. Slac (swing) bus: For the Slac Bus, it is assumed that the voltage magnitude V and voltage phase angle ( ) are nown, and real generated power (Pg) and reactive generated power (Qg) are treated as uncontrolled variable. 2.2 Bus Admittance Matrix Formation [7] Step1 Numbering of the buses is done from 1 to n. Bus 1 is the reference node (or ground node). Step2 -Replace all generators with equivalent current sources connected in parallel to the equivalent admittance. Step 3- Replace all lines, transformers and loads to equivalent admittances wherever possible. Step 4- Now by inspection: Yii (diagonal element) = sum of admittances connected to node, and Yij(off diagonal element) = Yji = -(sum of admittances connected from node i to node j ). Step 2: Predefined tolerance value till which the iteration process is followed for the convergence of the system equation. Step 3: Iteration count is set to K=0. Step 4: Bus count is set to p=1. Step 5: Case chec when p is slac bus, if yes sip to step 10. Step 6: Real power (Pp) and reactive powers (Qp) is measured from solving the power flow equations, n P { e ( e G f B ) f ( f G e B )} p p q pq p pq p q pq q pq q 1 n Q { f ( e G f B ) e ( f G e B )} p p q pq q pq p q pq q pq q 1 Step 7: Measure the active power correction factor P P P p sp p Step 8: Case when then bus is generator bus, then chec for reactive power limit. If Q Q set Qgen Qmax else if Q gen < Q min set, Q gen = Q min and otherwise, no change is made in Qp and voltage residue is evaluated as, then go to step 10. gen max p p spec p V V V and Step 9: Measure the reactive power correction factor Q Q Q p sp p 899
3 Step 10: Bus count is incremented by 1, i.e. p=p+1 and chec if all buses have been accounted else, move bac to step 5. Step 11: Determine the largest of the absolute value of residue. load dependency factor (NVLDF). Also with the change of load results change in the line flows of the system, this termed as line loss load dependency factor (LLLDF). This NVLDF and LLLDF is used to determine the most sensitive node and sensitive line with in the power system on which the effect of change of load is observed to be most. Step 12: If the largest of the absolute value of the residue is less than tolerance then go to step 17. Step 13: Jacobian matrix elements are evaluated. Step 14: Voltage increment factor Δep and Δfp is calculated. Step 15: Calculate new bus voltages ep+1 = ep + Δep and Δfp= fp + Δfp. Evaluate cosine δ and sin δ for all voltages. In the second stage of this paper, load on each bus is been firstly increased to 140% of initial load with an increment of 5% of initial load so that system overloaded condition could be studied. III CASE STUDIES System data is obtained from [11-12] 3.1 GENERAL 5 BUS SYSTEM:- Step 16: Advance iteration count is K =K+1, then go to step 4. Step 17: Finally bus and line powers flow are evaluated and results printed. 2.4 Load and line flow analysis (LFA):- Load is the term used for the power sin [10], which consumes the power either in the form of active power or reactive power. For the stable operation [6] of the power system the load should be resistive in nature so that system s reactive component could be reduced. But in real world most of the loads either they are residential load, commercial load or industrial load is inductive in nature. It s a characteristic of the inductive load to consume the reactive power. And, with the increase of load demand the generation should also be increased in order to matchup the power demand. But in real world generation increment ass for huge investment and for engineers minimizing the cost function is the main objective. So in order to match up the generation to demand, engineer need to determine the effect of load change on the line flow of the power system on which this paper is based upon. This effect of load on the power system line flow is termed as load sensitivity factor. With the change in the load the node voltage also get change, this termed as node voltage 900 Fig. 2 connection diagram of general 5 bus system 3.3 IEEE 30 BUS SYSTEM:- Fig. 3 connection diagram of IEEE 30 bus system
4 GENERAL 5 BUS SYTEM TABLE III NVLDF FOR 5 BUS SYSTEM No. of lines No. of buses No. of Tolerance generator buses IEEE 30 BUS SYTEM No. of lines No. of buses No. of Tolerance generator buses TABLE I BUS CONNECTION DATA GENERAL 5 BUS SYTEM GENERAL 5 BUS SYTEM REACTIVE POWER LINE FLOW STUDY number from bus to bus Reactive power line loss load dependency factor shunt loss 0+j0 shunt loss 0 + j0 Slac bus power j0.074 Slac bus power j0.074 generation load j j0.400 IEEE 30 BUS SYTEM generation load j j1.262 TABLE II NR LINE FLOW ANALYSIS RESULT GENERAL 5 BUS SYSTEM Bus number NODE VOLTAGE LOAD DEPENDENCY FACTOR(NVLDF) System loss j0.174 System loss j TABLE IV REACTIVE LINE LOSS LOAD DEPENDENCY FACTOR FOR 5 BUS SYSTEM IEEE 30 BUS SYSTEM Bus number NODE VOLTAGE LOAD DEPENDENCY FACTOR(NVLDF) e
5 number TABLE V NVLDF FOR IEEE 30 BUS SYSTEM IEEE 30 BUS SYTEM REACTIVE POWER LINE FLOW STUDY to Reactive power line loss from bus load dependency factor bus e e e e e
6 e TABLE VI REACTIVE LINE LOSS LOAD DEPENDENCY FACTOR FOR IEEE 30 BUS SYSTEM IV. RESULT By line flow analysis (LFA) of the 5 bus system and IEEE 30 bus system, the system parameters lie bus voltage, voltage phase angle, active power generation (Pg) and reactive power generation (Qg) for each type of system are obtained. Further for over-loaded condition study, in which the load is increased to 140% from 100% with an increment of 5% in each step, the NVLDF and the LLLDF is obtained. The NVLDF is the difference of the average incremental node voltage with standard voltage at 100% load. More is the value of NVLDF more is node sensitive to load increment. 903 The LLLDF is the difference of the average change in line power loss with the standard load. More is the value of LLLDF more is the line loss sensitive to the load increment. IV. CONCLUSION LFA of the general 5 bus system is been studied with IEEE 30 bus system. Along with the study of system parameter NVLDF and LLLDF is also obtained. By table III, most sensitive bus is 5 th. By table IV, most sensitive line is line number 1and 2. By table V, most sensitive bus is bus number 26 th and 30 th. By table VI, most sensitive line is line number 1 st, 2nd and 5 th line. For this paper, program is been designed in the MATLAB2013a environment. V. REFERENCES [1] A.E. Guile and W.D. Paterson, Electrical power systems, Vol. 2, (Pergamon Press, 2nd edition, 1977). [2] Carpentier Optimal Power Flows, Electrical Power and Energy Systems, Vol.1, April 1979, pp [3] W.D. Stevenson Jr., Elements of power system analysis, (McGraw-Hill, 4th edition, 1982). [4] Hadi Saadat, Power System Analysis, Tata McGRAW-HILL Edition. [5] W. F. Tinney, C. E. Hart, "Power Flow Solution by Newton's Method, " IEEE Transactions on Power Apparatus and systems, Vol. PAS-86, pp , November [6] A. J. Wood, B. F. Wollenberg. Power Generation Operation and Control. 2nd ed. John Willey & Sons Inc [7] Load flows, Chapter 18, Bus classification, Comparison of solution methods, N-R method Electrical Power system by C.L.WADHWA. [8] D.I.Sun, B.Ashley, B.Brewer, A.Hughes and W.F.Tinney, Optimal Power Flow by Newton Approach, IEEE Transactions on Power Apparatus and systems, vol.103, No.10, 1984, pp [9] T.K.A. Rahman and G.B. Jasmon, A new technique for voltage stability analysis in a power system and improved loadflow algorithm for distribution networ, Energy Management and Power Delivery Proceedings of EMPD '95; vol.2, pp , [10] P. Kundur, 1. Paserba, V. Ajjarapu, G. Anderson, A. Bose, C.A. Canizares, N. HatziargYfiou, D. Hill, A. Stanovic, C. Taylor, T. Van Cutsem, and V. Vittal, "Definition and Classification of Power System Instability," IEEE Trans. On Power Systems, Vol. 19, No.2, pp , May 2004 [11] A. Bergen and V. Vittal, Power Systems Analysis, second edition, Prentice Hall, Upper Saddle River, New Jersey, 2000 [12] J.Alsac, O. & Stott, B., "Optimal Load Flow with Steady State Security", IEEE Transactions on Power Apparatus and Systems, Vol. PAS 93, No. 3, 1974, pp
Understanding Load Flow Studies by using PSAT
Understanding Load Flow Studies by using PSAT Vijay Kumar Shukla 1, Ashutosh Bhadoria 2 1,2 Department of Electrical Engineering, Lovely Professional University, Jalandhar, India Abstract: Load Flow Study
More informationPower System Security Analysis. B. Rajanarayan Prusty, Bhagabati Prasad Pattnaik, Prakash Kumar Pandey, A. Sai Santosh
849 Power System Security Analysis B. Rajanarayan Prusty, Bhagabati Prasad Pattnaik, Prakash Kumar Pandey, A. Sai Santosh Abstract: In this paper real time security analysis is carried out. First contingency
More informationIncorporation of Asynchronous Generators as PQ Model in Load Flow Analysis for Power Systems with Wind Generation
Incorporation of Asynchronous Generators as PQ Model in Load Flow Analysis for Power Systems with Wind Generation James Ranjith Kumar. R, Member, IEEE, Amit Jain, Member, IEEE, Power Systems Division,
More informationAn Equivalent Circuit Formulation of the Power Flow Problem with Current and Voltage State Variables
An Equivalent Circuit Formulation of the Power Flow Problem with Current and Voltage State Variables David M. Bromberg, Marko Jereminov, Xin Li, Gabriela Hug, Larry Pileggi Dept. of Electrical and Computer
More informationEVALUATION OF THE IMPACT OF POWER SECTOR REFORM ON THE NIGERIA POWER SYSTEM TRANSIENT STABILITY
EVALUATION OF THE IMPACT OF POWER SECTOR REFORM ON THE NIGERIA POWER SYSTEM TRANSIENT STABILITY F. I. Izuegbunam * Department of Electrical & Electronic Engineering, Federal University of Technology, Imo
More informationCHAPTER 2 LOAD FLOW ANALYSIS FOR RADIAL DISTRIBUTION SYSTEM
16 CHAPTER 2 LOAD FLOW ANALYSIS FOR RADIAL DISTRIBUTION SYSTEM 2.1 INTRODUCTION Load flow analysis of power system network is used to determine the steady state solution for a given set of bus loading
More informationELEC4612 Power System Analysis Power Flow Analysis
ELEC462 Power Sstem Analsis Power Flow Analsis Dr Jaashri Ravishankar jaashri.ravishankar@unsw.edu.au Busbars The meeting point of various components of a PS is called bus. The bus or busbar is a conductor
More informationPowerApps Optimal Power Flow Formulation
PowerApps Optimal Power Flow Formulation Page1 Table of Contents 1 OPF Problem Statement... 3 1.1 Vector u... 3 1.1.1 Costs Associated with Vector [u] for Economic Dispatch... 4 1.1.2 Costs Associated
More informationTransient Stability Analysis of Single Machine Infinite Bus System by Numerical Methods
International Journal of Electrical and Electronics Research ISSN 348-6988 (online) Vol., Issue 3, pp: (58-66), Month: July - September 04, Available at: www.researchpublish.com Transient Stability Analysis
More informationState Estimation and Power Flow Analysis of Power Systems
JOURNAL OF COMPUTERS, VOL. 7, NO. 3, MARCH 01 685 State Estimation and Power Flow Analysis of Power Systems Jiaxiong Chen University of Kentucky, Lexington, Kentucky 40508 U.S.A. Email: jch@g.uky.edu Yuan
More informationPower Flow Analysis of Radial Distribution System using Backward/Forward Sweep Method
Power Flow Analysis of Radial Distribution System using Backward/Forward Sweep Method Gurpreet Kaur 1, Asst. Prof. Harmeet Singh Gill 2 1,2 Department of Electrical Engineering, Guru Nanak Dev Engineering
More informationA COMPUTER PROGRAM FOR SHORT CIRCUIT ANALYSIS OF ELECTRIC POWER SYSTEMS
NIJOTECH VOL. 5 NO. 1 MARCH 1981 EJEBE 46 A COMPUTER PROGRAM FOR SHORT CIRCUIT ANALYSIS OF ELECTRIC POWER SYSTEMS BY G.C. EJEBE DEPARTMENT OF ELECTRICAL/ELECTRONIC ENGINEERING UNIVERSITY OF NIGERIA, NSUKKA.
More informationVoltage Instability Analysis for Electrical Power System Using Voltage Stabilty Margin and Modal Analysis
Indonesian Journal of Electrical Engineering and Computer Science Vol. 3, No. 3, September 2016, pp. 655 ~ 662 DOI: 10.11591/ijeecs.v3.i2.pp655-662 655 Voltage Instability Analysis for Electrical Power
More informationApplication of Artificial Neural Network in Economic Generation Scheduling of Thermal Power Plants
Application of Artificial Neural Networ in Economic Generation Scheduling of Thermal ower lants Mohammad Mohatram Department of Electrical & Electronics Engineering Sanjay Kumar Department of Computer
More informationEE 581 Power Systems. Admittance Matrix: Development, Direct and Iterative solutions
EE 581 Power Systems Admittance Matrix: Development, Direct and Iterative solutions Overview and HW # 8 Chapter 2.4 Chapter 6.4 Chapter 6.1-6.3 Homework: Special Problem 1 and 2 (see handout) Overview
More informationComparison of Power Flow Algorithms for inclusion in On-line Power Systems Operation Tools
University of New Orleans ScholarWorks@UNO University of New Orleans Theses and Dissertations Dissertations and Theses 12-17-2010 Comparison of Power Flow Algorithms for inclusion in On-line Power Systems
More informationA Term Project report on. State Estimation of Power Systems Using Weighted Least Squares Optimization Technique
MA5630 Numerical Optimization Course Instructor: Prof. Allan A. Struthers A Term Project report on State Estimation of Power Systems Using Weighted Least Squares Optimization Technique Submitted by Alorf,
More informationChapter 8 VOLTAGE STABILITY
Chapter 8 VOTAGE STABIITY The small signal and transient angle stability was discussed in Chapter 6 and 7. Another stability issue which is important, other than angle stability, is voltage stability.
More informationThe N k Problem using AC Power Flows
The N k Problem using AC Power Flows Sean Harnett 5-19-2011 Outline Introduction AC power flow model The optimization problem Some results Goal: find a small set of lines whose removal will cause the power
More informationB.E. / B.Tech. Degree Examination, April / May 2010 Sixth Semester. Electrical and Electronics Engineering. EE 1352 Power System Analysis
B.E. / B.Tech. Degree Examination, April / May 2010 Sixth Semester Electrical and Electronics Engineering EE 1352 Power System Analysis (Regulation 2008) Time: Three hours Answer all questions Part A (10
More informationMohd Jamil Khan and 2 Yogesh Kumar. Churu, Raj., India.
International Journal of Mathematics Research. ISSN 0976-5840 Volume 8, Number 3 (2016), pp. 251-263 International Research Publication House http://www.irphouse.com Optimal Power Flow (OPF) formulation
More informationNew criteria for Voltage Stability evaluation in interconnected power system
New criteria for Stability evaluation in interconnected power system Lavanya Neerugattu Dr.G.S Raju MTech Student, Dept.Of EEE Former Director IT, BHU Email: nlr37@gmail.com Visiting Professor VNR Vignana
More informationKINGS COLLEGE OF ENGINEERING Punalkulam
KINGS COLLEGE OF ENGINEERING Punalkulam 613 303 DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING POWER SYSTEM ANALYSIS QUESTION BANK UNIT I THE POWER SYSTEM AN OVERVIEW AND MODELLING PART A (TWO MARK
More informationAnalyzing the Effect of Loadability in the
Analyzing the Effect of Loadability in the Presence of TCSC &SVC M. Lakshmikantha Reddy 1, V. C. Veera Reddy 2, Research Scholar, Department of Electrical Engineering, SV University, Tirupathi, India 1
More informationPerformance Improvement of the Radial Distribution System by using Switched Capacitor Banks
Int. J. on Recent Trends in Engineering and Technology, Vol. 10, No. 2, Jan 2014 Performance Improvement of the Radial Distribution System by using Switched Capacitor Banks M. Arjun Yadav 1, D. Srikanth
More informationECE 422/522 Power System Operations & Planning/Power Systems Analysis II : 7 - Transient Stability
ECE 4/5 Power System Operations & Planning/Power Systems Analysis II : 7 - Transient Stability Spring 014 Instructor: Kai Sun 1 Transient Stability The ability of the power system to maintain synchronism
More informationAn Efficient Decoupled Power Flow Control Method by use of Phase Shifting Transformers
FACTA UNIVERSITATIS (NIŠ) SER.: ELEC. ENERG. vol. 17, April 2004, 111-119 An Efficient Decoupled Power Flow Control Method by use of Phase Shifting Transformers Dragan P. Popović Abstract: This paper presents
More informationA DC Power Flow Extension
2013 4th IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe), October 6-9, Copenhagen 1 A DC Power Flow Extension Theodoros Kyriakidis, Rachid Cherkaoui, Maher Kayal Electronics Laboratory
More informationReal power-system economic dispatch using a variable weights linear programming method
Open Access Journal Journal of Power Technologies 95 (1) (2015) 34 39 journal homepage:papers.itc.pw.edu.pl Real power-system economic dispatch using a variable weights linear programming method M. Rahli,
More informationComparison between Interval and Fuzzy Load Flow Methods Considering Uncertainty
Comparison between Interval and Fuzzy Load Flow Methods Considering Uncertainty T.Srinivasarao, 2 P.Mallikarajunarao Department of Electrical Engineering, College of Engineering (A), Andhra University,
More informationAssessment and enhancement of voltage stability based on reactive power management using UPFC
Assessment and enhancement of voltage stability based on reactive power management using UPFC Priyawrat Anshuman ME, Department of Electrical Engineering Jabalpur Engineering College, Jabalpur, India Abstract:
More informationSimultaneous placement of Distributed Generation and D-Statcom in a radial distribution system using Loss Sensitivity Factor
Simultaneous placement of Distributed Generation and D-Statcom in a radial distribution system using Loss Sensitivity Factor 1 Champa G, 2 Sunita M N University Visvesvaraya college of Engineering Bengaluru,
More informationAnalytical Study Based Optimal Placement of Energy Storage Devices in Distribution Systems to Support Voltage and Angle Stability
University of Wisconsin Milwaukee UWM Digital Commons Theses and Dissertations June 2017 Analytical Study Based Optimal Placement of Energy Storage Devices in Distribution Systems to Support Voltage and
More informationSECTION 5: POWER FLOW. ESE 470 Energy Distribution Systems
SECTION 5: POWER FLOW ESE 470 Energy Distribution Systems 2 Introduction Nodal Analysis 3 Consider the following circuit Three voltage sources VV sss, VV sss, VV sss Generic branch impedances Could be
More informationPROPOSED STRATEGY FOR CAPACITOR ALLOCATION IN RADIAL DISTRIBUTION FEEDERS
IMPACT: International ournal of Research in Engineering & Technology (IMPACT: IRET) ISSN 2321-8843 Vol. 1, Issue 3, Aug 2013, 85-92 Impact ournals PROPOSED STRATEGY FOR CAPACITOR ALLOCATION IN RADIAL DISTRIBUTION
More informationApplication of the Three-Phase STATCOM in Voltage Stability
Application of the Three-Phase STATCOM in oltage Stability uan M.Ramírez 1 and.l. Murillo Pérez 1 Center for Research and Advanced Studies, National Polytechnic Institute Prolongación López Mateos Sur
More information= V I = Bus Admittance Matrix. Chapter 6: Power Flow. Constructing Ybus. Example. Network Solution. Triangular factorization. Let
Chapter 6: Power Flow Network Matrices Network Solutions Newton-Raphson Method Fast Decoupled Method Bus Admittance Matri Let I = vector of currents injected into nodes V = vector of node voltages Y bus
More informationDynamic Decomposition for Monitoring and Decision Making in Electric Power Systems
Dynamic Decomposition for Monitoring and Decision Making in Electric Power Systems Contributed Talk at NetSci 2007 May 20, 2007 Le Xie (lx@ece.cmu.edu) Advisor: Marija Ilic Outline Motivation Problem Statement
More informationEnhancement of transient stability analysis of multimachine power system
WWJMRD 2016; 2(6): 41-45 www.wwjmrd.com Impact Factor MJIF: 4.25 e-issn: 2454-6615 Oyediran Oyebode Olumide Department of Computer Engineering, Osun State Polytechnic Iree, Osun State, Nigeria Ogunwuyi
More informationEE2351 POWER SYSTEM ANALYSIS UNIT I: INTRODUCTION
EE2351 POWER SYSTEM ANALYSIS UNIT I: INTRODUCTION PART: A 1. Define per unit value of an electrical quantity. Write equation for base impedance with respect to 3-phase system. 2. What is bus admittance
More informationFine Tuning Of State Estimator Using Phasor Values From Pmu s
National conference on Engineering Innovations and Solutions (NCEIS 2018) International Journal of Scientific Research in Computer Science, Engineering and Information Technology 2018 IJSRCSEIT Volume
More information1. Introduction. Keywords Transient Stability Analysis, Power System, Swing Equation, Three-Phase Fault, Fault Clearing Time
Energy and Power 17, 7(1): -36 DOI: 1.593/j.ep.1771.3 Numerical Simulations for Transient Stability Analysis of Two-Machine Power System Considering Three-Phase Fault under Different Fault Clearing Times
More informationMATPOWER as Educational Tool for Solving Optimal Power Flow Problems on a Simulated Nigerian Power Grid
International Journal of Engineering Science Invention ISSN (Online): 2319 6734, ISSN (Print): 2319 6726 Volume 2 Issue7 ǁ July. 2013 ǁ PP.73-78 MATPOWER as Educational Tool for Solving Optimal Power Flow
More informationA Particle Swarm Optimization for Reactive Power Optimization
ISSN (e): 2250 3005 Vol, 04 Issue, 11 November 2014 International Journal of Computational Engineering Research (IJCER) A Particle Swarm Optimization for Reactive Power Optimization Suresh Kumar 1, Sunil
More informationUNIVERSITY OF NAIROBI DE-COUPLED LOAD FLOW STUDY METHOD
UNIVERSITY OF NAIROBI SCHOOL OF ENGINEERING DEPARTMENT OF ELECTRICAL AND INFORMATION ENGINEERING DE-COUPLED LOAD FLOW STUDY METHOD PROJECT INDEX: PRJ (71) BY KETER SAMSON KIPKIRUI F17/30052/2009 SUPERVISOR:
More information1 Unified Power Flow Controller (UPFC)
Power flow control with UPFC Rusejla Sadikovic Internal report 1 Unified Power Flow Controller (UPFC) The UPFC can provide simultaneous control of all basic power system parameters ( transmission voltage,
More informationEnhanced Newton Method Based Radial Distribution System Load Flow Analysis with Extrapolation Techniques
Enhanced Newton Method Based Radial Distribution System Load Flow Analysis with Extrapolation Techniques Asst. Prof. Dr. Hassan Kuhba Electrical Engineering Department, Engineering College/Baghdad University,
More informationFLEXIBLE ac transmission system (FACTS) devices give
694 IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 19, NO. 2, APRIL 2004 A Newton-Type Current Injection Model of UPFC for Studying Low-Frequency Oscillations Kwang M. Son, Member, IEEE, and Robert H. Lasseter,
More informationA LOOP BASED LOAD FLOW METHOD FOR WEAKLY MESHED DISTRIBUTION NETWORK
VOL. 3, NO. 4, AUGUST 28 ISSN 89-668 26-28 Asian Research Publishing Network (ARPN). All rights reserved. A LOOP BASED LOAD FLOW METHOD FOR WEAKLY MESHED S. Sivanagaraju, J. Viswanatha Rao 2 and M. Giridhar
More informationSteady State Performance of Doubly Fed Induction Generator Used in Wind Power Generation
Steady State Performance of Doubly Fed Induction Generator Used in Wind Power Generation Indubhushan Kumar Mewar University Department of Electrical Engineering Chittorgarh, Rajasthan-312902 Abstract:
More informationGeneralized Injection Shift Factors and Application to Estimation of Power Flow Transients
Generalized Injection Shift Factors and Application to Estimation of Power Flow Transients Yu Christine Chen, Alejandro D. Domínguez-García, and Peter W. Sauer Department of Electrical and Computer Engineering
More informationAn Improved Method for Determining Voltage Collapse Proximity of Radial Distribution Networks
An Improved Method for Determining Voltage Collapse Proximity of Radial Distribution Networks A. AUGUGLIARO, L. DUSONCHET, S. FAVUA, S. MANGIONE Dept. of Electrical, Electronic and Telecommunication Engineering
More informationLoadability Enhancement by Optimal Load Dispatch in Subtransmission Substations: A Genetic Algorithm
Loadability Enhancement by Optimal Load Dispatch in Subtransmission Substations: A Genetic Algorithm M.R. Haghifam A.Ghanbarnezhad H.Lavaee G.Khoshkholg Tarbait Modarres University Tehran Regional Electric
More informationCAPACITOR PLACEMENT IN UNBALANCED POWER SYSTEMS
CAPACITOR PLACEMET I UBALACED POWER SSTEMS P. Varilone and G. Carpinelli A. Abur Dipartimento di Ingegneria Industriale Department of Electrical Engineering Universita degli Studi di Cassino Texas A&M
More informationReliability of Bulk Power Systems (cont d)
Reliability of Bulk Power Systems (cont d) Important requirements of a reliable electric power service Voltage and frequency must be held within close tolerances Synchronous generators must be kept running
More informationTwo-Layer Network Equivalent for Electromagnetic Transients
1328 IEEE TRANSACTIONS ON POWER DELIVERY, VOL. 18, NO. 4, OCTOBER 2003 Two-Layer Network Equivalent for Electromagnetic Transients Mohamed Abdel-Rahman, Member, IEEE, Adam Semlyen, Life Fellow, IEEE, and
More informationVOLTAGE stability has become a major concern for the
IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 21, NO. 1, FEBRUARY 2006 171 Continuation-Based Quasi-Steady-State Analysis Qin Wang, Member, IEEE, Hwachang Song, Member, IEEE, and Venkataramana Ajjarapu, Senior
More informationTrajectory Sensitivity Analysis as a Means of Performing Dynamic Load Sensitivity Studies in Power System Planning
21, rue d Artois, F-75008 PARIS CIGRE US National Committee http : //www.cigre.org 2014 Grid of the Future Symposium Trajectory Sensitivity Analysis as a Means of Performing Dynamic Load Sensitivity Studies
More informationEE5250 TERM PROJECT. Report by: Akarsh Sheilendranath
EE5250 TERM PROJECT Analytical Approaches for Optimal Placement of Distributed Generation Sources in Power System Caisheng Wang, student member, IEEE, and M. Hashem Nehrir, senior member, IEEE Report by:
More informationAssessment of Available Transfer Capability Incorporating Probabilistic Distribution of Load Using Interval Arithmetic Method
Assessment of Available Transfer Capability Incorporating Probabilistic Distribution of Load Using Interval Arithmetic Method Prabha Umapathy, Member, IACSIT, C.Venkataseshaiah and M.Senthil Arumugam Abstract
More informationCongestion Alleviation using Reactive Power Compensation in Radial Distribution Systems
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, Volume 11, Issue 6 Ver. III (Nov. Dec. 2016), PP 39-45 www.iosrjournals.org Congestion Alleviation
More informationA PROPOSED STRATEGY FOR CAPACITOR ALLOCATION IN RADIAL DISTRIBUTION FEEDERS
A PROPOSED STRATEGY FOR CAPACITOR ALLOCATION IN RADIAL DISTRIBUTION FEEDERS 1 P.DIVYA, 2 PROF. G.V.SIVA KRISHNA RAO A.U.College of Engineering, Andhra University, Visakhapatnam Abstract: Capacitors in
More informationECE 476. Exam #2. Tuesday, November 15, Minutes
Name: Answers ECE 476 Exam #2 Tuesday, November 15, 2016 75 Minutes Closed book, closed notes One new note sheet allowed, one old note sheet allowed 1. / 20 2. / 20 3. / 20 4. / 20 5. / 20 Total / 100
More informationPower System Stability and Control. Dr. B. Kalyan Kumar, Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India
Power System Stability and Control Dr. B. Kalyan Kumar, Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai, India Contents Chapter 1 Introduction to Power System Stability
More informationFast Decoupled Power Flow for Unbalanced Radial Distribution Systems
Fast Decoupled Power Flow for Unbalanced Radial Distribution Systems Ray D. Zimmerman Hsiao-Dong Chiang School of Electrical Engineering Cornell University, Ithaca, NY 4853 USA 95 WM 29-6 PWRS Abstract
More informationRegular paper. Particle Swarm Optimization Applied to the Economic Dispatch Problem
Rafik Labdani Linda Slimani Tarek Bouktir Electrical Engineering Department, Oum El Bouaghi University, 04000 Algeria. rlabdani@yahoo.fr J. Electrical Systems 2-2 (2006): 95-102 Regular paper Particle
More informationPower flow analysis by Artificial Neural Network
nternational Journal of Energy and Power Engineering 2013; 2(6): 204-208 Published online November 30, 2013 (http://wwwsciencepublishinggroupcom/j/ijepe) doi: 1011648/jijepe2013020611 Power flow analysis
More informationMODELLING OF LOADS IN POWER
MODELLING OF LOADS IN POWER FLOW ANALYSIS SIBASISH KANUNGO (109EE0274) Department of Electrical Engineering National Institute of Technology Rourkela 1 MODELLING OF LOADS IN POWER FLOW ANALYSIS A Thesis
More informationOPTIMAL DISPATCH OF REAL POWER GENERATION USING PARTICLE SWARM OPTIMIZATION: A CASE STUDY OF EGBIN THERMAL STATION
OPTIMAL DISPATCH OF REAL POWER GENERATION USING PARTICLE SWARM OPTIMIZATION: A CASE STUDY OF EGBIN THERMAL STATION Onah C. O. 1, Agber J. U. 2 and Ikule F. T. 3 1, 2, 3 Department of Electrical and Electronics
More informationSingle objective optimization using PSO with Interline Power Flow Controller
Single objective optimization using PSO with Interline Power Flow Controller Praveen.J, B.Srinivasa Rao jpraveen.90@gmail.com, balususrinu@vrsiddhartha.ac.in Abstract Optimal Power Flow (OPF) problem was
More informationAppendix A Solving Systems of Nonlinear Equations
Appendix A Solving Systems of Nonlinear Equations Chapter 4 of this book describes and analyzes the power flow problem. In its ac version, this problem is a system of nonlinear equations. This appendix
More informationPerformance analysis and comparison of load flow methods in a practical distribution system
Performance analysis and comparison of load flow methods in a practical distribution system B.Muruganantham Dept. of Electrical and Electronics Engineering Pondicherry Engineering College Puducherry -
More informationA Course Material on EE2351 POWER SYSTEM ANALYSIS
A Course Material on EE2351 POWER SYSTEM ANALYSIS By Mrs. K. Umarani ASSISTANT PROFESSOR DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING SASURIE COLLEGE OF ENGINEERING VIJAYAMANGALAM 638 056 Page
More informationp 1 p 0 (p 1, f(p 1 )) (p 0, f(p 0 )) The geometric construction of p 2 for the se- cant method.
80 CHAP. 2 SOLUTION OF NONLINEAR EQUATIONS f (x) = 0 y y = f(x) (p, 0) p 2 p 1 p 0 x (p 1, f(p 1 )) (p 0, f(p 0 )) The geometric construction of p 2 for the se- Figure 2.16 cant method. Secant Method The
More informationDynamic Behavior of Three phase Inductions Motors as Loads in an Electric Power System with Distributed Generation, a Case of Study.
Dynamic Behavior of Three phase Inductions Motors as Loads in an Electric Power System with Distributed Generation, a Case of Study. Marcelo Rodrigo García Saquicela, Ernesto Ruppert Filho, José Luis Azcue
More informationThe Necessity for Considering Distribution Systems in Voltage Stability Studies
The Necessity for Considering Distribution Systems in Voltage Stability Studies Farid Karbalaei 1, Ataollah Abedinzadeh 2 and Mehran Kavyani 3 1,2,3 Faculty of Electrical & Computer Engineering, Shahid
More informationSmart Grid State Estimation by Weighted Least Square Estimation
International Journal of Engineering and Advanced Technology (IJEAT) ISSN: 2249 8958, Volume-5, Issue-6, August 2016 Smart Grid State Estimation by Weighted Least Square Estimation Nithin V G, Libish T
More informationGA BASED OPTIMAL POWER FLOW SOLUTIONS
GA BASED OPTIMAL POWER FLOW SOLUTIONS Thesis submitted in partial fulfillment of the requirements for the award of degree of Master of Engineering in Power Systems & Electric Drives Thapar University,
More informationMinimization of Energy Loss using Integrated Evolutionary Approaches
Minimization of Energy Loss using Integrated Evolutionary Approaches Attia A. El-Fergany, Member, IEEE, Mahdi El-Arini, Senior Member, IEEE Paper Number: 1569614661 Presentation's Outline Aim of this work,
More informationIdentifying Critical Measurements in the Power System Network
Identifying Critical Measurements in the Power System Network 1 Kenedy Aliila Greyson and 2 Anant Oonsivilai School of Electrical Engineering, Institute of Engineering, Suranaree University of Technology
More informationAppearance of multiple stable load flow solutions under power flow reversal conditions
Appearance of multiple stable load flow solutions under power flow reversal conditions Hung D. Nguyen School of Mechanical Engineering Massachusetts Institute of Technology Cambrie, MA 02139 Email: hunghtd@mit.edu
More informationJ. Electrical Systems 10-1 (2014): Regular paper. Optimal Power Flow and Reactive Compensation Using a Particle Swarm Optimization Algorithm
Ahmed Elsheikh 1, Yahya Helmy 1, Yasmine Abouelseoud 1,*, Ahmed Elsherif 1 J. Electrical Systems 10-1 (2014): 63-77 Regular paper Optimal Power Flow and Reactive Compensation Using a Particle Swarm Optimization
More informationSINGLE OBJECTIVE RISK- BASED TRANSMISSION EXPANSION
Vol.2, Issue.1, Jan-Feb 2012 pp-424-430 ISSN: 2249-6645 SINGLE OBJECTIVE RISK- BASED TRANSMISSION EXPANSION V.Sumadeepthi 1, K.Sarada 2 1 (Student, Department of Electrical and Electronics Engineering,
More informationOptimal DG allocation and sizing in a Radial Distribution System using Analytical Approach
Optimal allocation and sizing in a Radial Distribution System using Analytical Approach N.Ramya PG Student GITAM University, T.Padmavathi, Asst.Prof, GITAM University Abstract This paper proposes a comprehensive
More informationOptimal Capacitor Placement in Distribution System with Random Variations in Load
I J C T A, 10(5) 2017, pp. 651-657 International Science Press Optimal Capacitor Placement in Distribution System with Random Variations in Load Ajay Babu B *, M. Ramalinga Raju ** and K.V.S.R. Murthy
More informationA Computer Application for Power System Control Studies
A Computer Application for Power System Control Studies Dinis C. A. Bucho Student nº55262 of Instituto Superior Técnico Technical University of Lisbon Lisbon, Portugal Abstract - This thesis presents studies
More informationA Novel Technique to Improve the Online Calculation Performance of Nonlinear Problems in DC Power Systems
electronics Article A Novel Technique to Improve the Online Calculation Performance of Nonlinear Problems in DC Power Systems Qingshan Xu 1, Yuqi Wang 1, * ID, Minjian Cao 1 and Jiaqi Zheng 2 1 School
More informationECE 422/522 Power System Operations & Planning/ Power Systems Analysis II 3 Load Modeling
ECE 422/522 Power System Operations & Planning/ Power Systems Analysis II 3 Load Modeling Spring 2014 Instructor: Kai Sun 1 References 1. Load Performance for Dynamic Performance Analysis, IEEE Committee
More informationVoltage Stability Monitoring using a Modified Thevenin Impedance
Voltage Stability Monitoring using a Modified Thevenin mpedance S. Polster and H. Renner nstitute of Electrical Power Systems Graz University of Technology Graz, Austria Abstract This paper presents a
More informationEE2351 POWER SYSTEM ANALYSIS
EE351 POWER SYSTEM ANALYSIS A.Ahamed Riazudeen EEE DEPARTMENT 1 UNIT I INTRODUCTION Power system network 3 SINGLE LINE DIAGRAM It is a diagrammatic representation of a power system in which the components
More informationAPPLICATION OF AN INTERLINE POWER FLOW CONTROLLER AS AGC
APPLICATION OF AN INTERLINE POWER FLOW CONTROLLER AS AGC 1 G. RADHA KRISHNAN, 2 Dr. V. GOPALAKRISHNAN 1 Assistant Professor, Dept. of EEE, RVS College of Engineering and Technology, Coimbatore, Tamilnadu,
More informationApplication of Monte Carlo Simulation to Multi-Area Reliability Calculations. The NARP Model
Application of Monte Carlo Simulation to Multi-Area Reliability Calculations The NARP Model Any power system reliability model using Monte Carlo simulation consists of at least the following steps: 1.
More informationA Fast Continuation Load Flow Analysis for an Interconnected Power System
A Fast Continuation Load Flow Analysis for an Interconnected Power System D. Hazarika Assam Engineering College, Gauhati-13, Assam, India dlhazarika@sify.com Abstract- The paper provides an algorithm for
More informationAn Novel Continuation Power Flow Method Based on Line Voltage Stability Index
IOP Conference Series: Earth and Environmental Science PAPER OPEN ACCESS An Novel Continuation Power Flow Method Based on Line Voltage Stability Index To cite this article: Jianfang Zhou et al 2018 IOP
More informationModelling and Simulation of TCPAR for Power System Flow Studies
ISSN 1583-033 Issue 1, July-December 01 p. 13-137 Modelling and Simulation of TCPAR for Power System Flow Studies Narimen Lahaçani AOUZELLAG *, Lyes BENKHELLAT, Samir MAHLOUL Department of Electrical Engineering,
More informationOPTIMAL POWER FLOW CONSIDERING LINE LOSS
OPTIMAL POWER FLOW CONSIDERING LINE LOSS A Thesis submitted to the Department of Electrical & Electronic Engineering, BRAC University in partial fulfillment of the requirements for the Bachelor of Science
More informationCritical Points and Transitions in an Electric Power Transmission Model for Cascading Failure Blackouts
The submitted manuscript has been authored by a contractor of the U.S. Government under Contract No. DE-AC05-00OR22725. Accordingly, the U.S. Government retains a nonexclusive royalty-free license to publish
More informationASEPE - Analysis of Electrical Power Systems
Coordinating unit: Teaching unit: Academic year: Degree: ECTS credits: 2018 295 - EEBE - Barcelona East School of Engineering 709 - EE - Department of Electrical Engineering BACHELOR'S DEGREE IN ELECTRICAL
More informationMinimization of load shedding by sequential use of linear programming and particle swarm optimization
Turk J Elec Eng & Comp Sci, Vol.19, No.4, 2011, c TÜBİTAK doi:10.3906/elk-1003-31 Minimization of load shedding by sequential use of linear programming and particle swarm optimization Mehrdad TARAFDAR
More informationPOSSIBLE STEADY-STATE VOLTAGE STABILITY ANALYSES OF ELECTRIC POWER SYSTEMS
Intensive Programme Renewable Energy Sources May 011, Železná Ruda-Špičák, University of West Bohemia, Czech Republic POSSIBLE STEADY-STATE VOLTAGE STABILITY ANALYSES OF ELECTRIC POWER SYSTEMS Jan Veleba
More information