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CLC number: TM7; TK8

On-line Access: 2008-03-04

Received: 2007-10-25

Revision Accepted: 2007-12-25

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Cited: 3

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2008 Vol.9 No.4 P.558~563


A novel dynamic equivalence method for grid-connected wind farm

Author(s):  Jia-geng QIAO, Zong-xiang LU, Yong MIN

Affiliation(s):  State Key Laboratory of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China

Corresponding email(s):   qiaojg03@mails.tsinghua.edu.cn

Key Words:  Grid-connected wind farm, Dynamic equivalence, Squirrel-Cage Induction Generator (SCIG), Genetic algorithm

Jia-geng QIAO, Zong-xiang LU, Yong MIN. A novel dynamic equivalence method for grid-connected wind farm[J]. Journal of Zhejiang University Science A, 2008, 9(4): 558~563.

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author="Jia-geng QIAO, Zong-xiang LU, Yong MIN",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

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%T A novel dynamic equivalence method for grid-connected wind farm
%A Jia-geng QIAO
%A Zong-xiang LU
%A Yong MIN
%J Journal of Zhejiang University SCIENCE A
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%N 4
%P 558~563
%@ 1673-565X
%D 2008
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A071564

T1 - A novel dynamic equivalence method for grid-connected wind farm
A1 - Jia-geng QIAO
A1 - Zong-xiang LU
A1 - Yong MIN
J0 - Journal of Zhejiang University Science A
VL - 9
IS - 4
SP - 558
EP - 563
%@ 1673-565X
Y1 - 2008
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A071564

dynamic equivalence of the wind farm is a fundamental problem in the simulation of a power system connected with wind farms because it is unpractical to model every generator in a wind farm in detail. In this paper, an Equivalence Method based on the Output Characteristics (EMOC) is proposed, with which the wind farm composed of Squirrel-Cage Induction Generators (SCIGs) can be equivalent to one generator. By considering the diversity of wind generators and special operating characteristics of a wind farm, the equivalent generator based on EMOC responds accurately in various faults. No matter whether the wind farm is integrated in grid or just programmed, EMOC can be used to acquire an accurate equivalent generator. Simulation of the dynamic equivalence of an SCIG wind farm validated the method.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


[1] Abdel Hakim, M.M., Berg, G.J., 1976. Dynamic single-unit representation of induction motor groups. IEEE Trans. on Power Apparatus and Systems, 95(1):155-166.

[2] Ackermann, T., 2005. Wind Power in Power System. John Wiley & Sons, Ltd., UK.

[3] Feijóo, A., Cidrás, J., Carrillo, C., 2000. A third order model for the doubly fed induction machine. Electric Power Research, 56(2):121-127.

[4] GWEC (Global Wind Energy Council), 2007. Global Wind 2006 Report. Http://www.gwec.net

[5] Hansen, A.D., Sørensen, P., Blaabjerg, F., Becho, J., 2002. Dynamic modeling of wind farm grid interaction. Wind Engineering, 26(4):191-208.

[6] Kataoka, T., Kai, T., 2000. A Method for Aggregation of a Group of Induction Motor Loads. Int. Conf. on Power System Technology, 3:1683-1688.

[7] Liu, B., 2002. Theory and Practice of Uncertain Programming. Physica-Verlag, New York.

[8] Muljadi, E., Butterfield, C.P., 2004. Wind Farm Power System Model Development. World Renewable Energy Congress VIII. Denver, Colorado.

[9] Ni, Y.X., Chen, S.S., Zhang, B.L., 2002. Theory and Analysis of Dynamic Power System. Tsinghua University Publication, Beijing, China (in Chinese).

[10] Rahim, A.H.M.A., Laldin, A.R., 1987. Aggregation of induction motor loads for transient stability studies. IEEE Trans. on Energy Conversion, 2(1):55-61.

[11] Sriharan, S., Tan, L.H., Ting, H.M., 1993. Reduced transient model of a group of induction motors. IEEE Trans. on Energy Conversion, 8(4):769-777.

[12] Tande, J.O., Muljadi, E., Carlson, O., Pierik, J., Estanqueiro, A.I., Sørensen, P., O′Malley, M., Mullane, A., Anaya-Lara, O., Lemstrom, B., 2004. Dynamic Models of Wind Farms for Power System Studies–Status by IEA Wind R&D Annex 21. Proc. EWEC. London, UK.

[13] Wu, J.L., Zhou, S.X., Sun, J.F., Chen, S.S., Meng, Q.H., 2004. Analysis on maximum power injection of wind farm connected to power system. Power System Technology, 28(2):28-32 (in Chinese).

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