The document presents a paper on power quality analysis of a grid-connected wind farm. It discusses modeling and simulating the wind farm using MATLAB/Simulink. It shows simulations of the wind farm under normal operation and during events like voltage sags and swells. Data from the simulations investigating current, voltage, power and power quality are presented. The conclusions state that power quality issues for high-penetration grid-connected wind farms have been investigated through modeling and simulations in MATLAB/Simulink.

1. Yeshwantrao Chavan College of Engineering, Nagpur
(Department of Electrical Engineering)
Ph.D. (Electrical Engineering) Research Scholar
Presentation of paper
On
“ Power Quality Analysis of Grid Connected Wind Energy ”
Paper Id=105
Participant’s Reference No=1307
11/12/2013
Presented by
Kishor Vinayak Bhadane
Asst. Prof. , G.H.Raisoni Institute of Engineering & Management ,Jalgaon
Presentation Date
11/12/2013 (Wednesday)
Research Guide & Mentor
Dr. M. S. Ballal & Dr. R. M. Moharil
Associate Professor, Electrical Dept. V.N.I.T , Nagpur & Prof. in YCCE, Nagpur
Venue
ICAER 2013
Department of Energy Science and Engineering,
Indian Institute of Technology Bombay, Pawai
Mumbai, Maharashtra, India
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2. Contents
1. Introduction
2. System Development & Its Description
3. Power Quality Analysis- Case Study
4. Simulations & Modelling
5. Conclusions
References
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3. 
I. INTRODUCTION
 Renewable Energy & Its Importance[1]
 DG Solution against load shedding in rural area of
Maharashtra, India.[2]
 Electrical Power Quality.[3]
 Integrating renewable into grids and Power
Quality issues.[4]
 Heavy Penetration of Renewable Wind Energy
affect Power Quality.[5]
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4. II SYSTEM DEVELOPMENT & ITS
DESCRIPTION
 Integrated wind farm is used and power
quality analysis is performed.[6]
 The integration of big wind farm will create
new problems regarding the power quality.[7]
 Technical details of Wind farm.[8]
 The simulation model implemented in the
MATLAB/SIMULINK. [9]
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5.  Renewable Energy Source (RES) integrated at
distribution level is termed as Distributed
Generation(DG).[10]
 high penetration level of wind energy in
distribution systems, as it may pose a threat to
network is terms of Power Quality(PQ) issues ,
voltage regulation and stability. [11]
 wind energy system integration issues
associated PQ problems are discussed.
and
 As per the modeling and simulation of a case
study, the power quality of the grid connected
wind farm has been investigated at different
wind velocity. [12]
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6.  Normal operation of 52 Wind mills by using MATLAB/SIMULINK

Top /first 26 Wind Mills simulation-IG,Wind speed, P in Mw &Bottom /second 26 Wind Mills simulationWind speed, P in Mw
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7. operation of 52 Wind mills by using MATLAB/SIMULINK under voltage sag
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8.  operation of 52 Wind mills by using MATLAB/SIMULINK under voltage swell
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9. Operation of 52 Wind mills by using MATLAB/SIMULINK under
Harmonics
Discrete 1
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10. 
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Discrete 2
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11. 
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Discrete 3
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12.  III SIMULATION AND MODELLING
 Wind turbines cause significant impacts on the
power quality of their connected grid.
 Voltage fluctuations produced by wind turbines
are usually due to wind speed variations, power
and voltage fluctuations.
 This case presents simulations for numerical
models of two wind turbine schemes, fixed and
variable
speed
types,
by
using
MATLAB/SIMULINK.[12]
 In order to investigate the power system impact of
wind turbines, it is essential to use accurate
dynamic simulation models of wind turbines and
power system.
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13.  The models must correctly represent the dynamic
behavior of the wind turbines in order to predict
critical operation conditions at the one hand and to
improve their dynamic performance at the other
hand.
 Hence, those wind turbine models have to be
developed and implemented in dedicated power
system simulation tools in order to facilitate study
on the wind turbines interaction with the power
system. MATLAB software tools build the basis
for power system simulations .[13]
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14.  Normal operation of 52 Wind mills by using MATLAB/SIMULINK
 Top /first 26 Wind Mills simulation-IG,Wind speed, P in Mw
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15.  Bottom /second 26 Wind Mills simulation-IG,Wind speed, P in Mw
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16.  Data Acuitision 1
 Measurment 1
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17. 
 Measurment 2
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18. 
Data Aquitision 2
 Measurement 1
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19. IV POWER QUALITY ANALYSISCASE STUDY
 Voltage sag at Induction Generator side
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20.  Voltage sag at 33 kv bus side
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21.  Operation of 52 Wind mills by using MATLAB/SIMULINK under
voltage sag
 Top /first 26 Wind Mills & bottom /second 26 Wind Mills simulation, Wind speed,P in Mw
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22.  Data Acquisition 1
 measurement 1
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23.  Measurement 2
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24.  Data aquitision 2
 Measurment 1
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25. Voltage sag at I.G.side
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26. 
Current at 690 v
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27. 
Voltage sag of 33kv bus at 690 v
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28. 
Power factor
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29. 
Q AT 690 V
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30. 
P at 690 v
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31. 
 Operation of 52 Wind mills by using MATLAB/SIMULINK under voltage swell
 Top /first 26 Wind Mills simulation-IG,Wind speed, P in Mw
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32. 
bottom /second 26 Wind Mills simulation-IG,Wind speed, P in Mw
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33.  Data acquisition 1
 Measurement 1
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34.  V. CONCLUSIONS
 modeling and simulation of Indian wind farm by using
MATLAB/SIMULINK has been carried out.
 In this case, simulations of wind turbine system to assess
power quality that will affect the power system before actual
installation have been performed. Because of the complexity
of the model under study, the computational burden is high.
Future work will focus on the reduction of simulation time
and increase the solution accuracy.
 This case investigated the possible approaches for integration
of FSIG wind farms to the power network.
 This case presents the performance analysis of grid connected
wind farm by using MATLAB/SIMULINK for power quality
Analysis.
 Power Quality issues of high penetrated grid connected wind
farm has been investigated.
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35. 
References
 [1] E. Muljadi, C.P. Butterfield,J. Chacon,H. Romanowitz ,” POWER QUALITY ASPECTS IN A WIND
POWER PLANT”,IEEE 2006
 [2] Gabriele Michalke, Department for Renewable Energies Institute of Electrical power system,”
Variable Speed Wind Turbines - Modelling, Control, and Impact on Power Systems “, pp.1-228, 2008
 [3} Nguyen Tung Linh ,Electric Power University, “Power Quality Investigation of Grid Connected
Wind Turbines”, ICIEA 2009, pp.2018-2022, IEEE 2009
 [4] SU Shi-ping ,QIN Zhi-qing ,” Study on Transient Power Quality Detection of Grid-Connected
Wind Power Generation System Based on Wavelet Transform”, DOI 10.1109/ICEET.2009.213,PP.861864,IEEE computer society.
 [5] H. J. Su, H. Y. Huang, and G. W. Chang,” Power Quality Assessment of Wind Turbines by
Matlab/Simulink”, IEEE 2010.
 [6] O. A. Giddani, G. P. Adam, O. Anaya-Lara, G. Burt and K. L. Lo, ” Enhanced performance of FSIG
wind farms for Grid Code compliance”, SPEEDAM 2010 International Symposium on Power
Electronics, Electrical Drives, Automation and Motion, pp.660-665 IEEE 2010.
 [7] Zbigniew Leonowicz, ” Assessment of Power Quality in Wind Power Systems”, IEEE 2011
 [8] John P. Barton, Simon J. Watson, “Analysis of electrical power data for condition monitoring of a
small wind turbine” , Published in IET Renewable Power Generation, doi: 10.1049/iet-rpg.2012.0326.
 [9] Sharad W. Mohod, Member, IEEE, and Mohan V. Aware “Micro wind power generator with battery
storage” IEEE SYSTEMS JOURNAL, VOL. 6, NO. 1, MARCH 2012
 [10] S. W. Mohod and M. V. Aware, “Power quality issues & it’s mitigation technique in wind energy
conversion,” in Proc. of IEEE Int. Conf. Quality Power & Harmonic, Wollongong, Australia, 2008.
 [11] J. J. Gutierrez, J. Ruiz, L. Leturiondo, “Comparison of Different Control Strategies of STATCOM
for Power Quality Improvement of Grid Connected Wind Energy System”, PP.124-131, IEEE 2013
 [12] T. Burton, D. Sharpe, N. Jenkins ,E. Bossanyi, “Wind Energy Handbook ”, John Wiley & sons
Ltd. Chichester , 2001
 [13] J. F. Manwell , J. G. Mcgowan , A. L.Rogers, “Wind Energy Explained : Theory , Design and
Application ”, John Wiley & sons Ltd. Chichester , 2002.
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36. 11/12/2013
THANK YOU
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