Simulation Study on Dynamic Reactive Power Compensation of Grid-Connected Wind Farms

Abstract:

With the Asynchronous wind generators as research object, this paper analyzes the problems of the voltage stability and the generation mechanism of the reactive power compensation during the wind farms connected operation. For paralleling capacitor bank has shown obvious defects, therefore this paper employs dynamic reactive power compensation to improve reactive characteristics of grid-connected wind farms. With the influences of different wind disturbances and grid faults on wind farms, wind farm model is set up and dynamic reactive power compensation system and wind speeds are built in the Matlab/Simulink software, The simulation result shows that they can provide reactive power compensation to ensure the voltage stability of the wind farms. But STATCOM needs less reactive compensation capacity to make sure the voltage and active power approaching steady state before the faults more quickly, Therefore STATCOM is more suitable for wind farms connected dynamic reactive power compensation.

• Periodical: Advanced Materials Research (Volumes 756-759)
• Pages: 4171-4174
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.756-759.4171
• Online since: September 2013
• Authors: Xiao Ming Wang, Xing Xing Mu
• Keywords: Reactive Power Compensation, STATCOM, Transient Stability, Wind Farm

References

[1] Gu Wei, Li Xingyuan, and Wei Wei, Simulation Comparison of the Improved Wind Power Dynamics by Means of SVC and STATCOM, J. Power System and Clean Energy, vol. 25, pp.70-75, November, (2009).

[2] Yang Zhiyue, Li Fengting, Simulation of Dynamic Reactive Power Compensation Scheme of Grid-Based Wind Farm, J. Electric Machines & Control Application, vol. 38, pp.34-38, November, (2011).

[3] Jin Jing, Ai Qian, and Zhao Yan, Reactive compensation principle and simulation of FACTS device in wind farm, , J. Electric Power Automation Equipment, vol. 27, pp.58-61, August, (2007).

[4] Guo Lei, Wang Chunhua, and Gao Peisheng, Analysis on Wind Turbine Tripping in Wind Farm of Chang ling Area, J. Jilin Electric Power, vol. 40, pp.38-40, Feb. (2012).

[5] Wang Xiaolan, Wang Yaohui, Voltage control at PCC of wind farm based on adjustment of reactive power of DFIG, J. Journal of Lanzhou University of Technology, vol. 36, pp.84-89, Aug. (2010).

[6] Sun Jianfeng, Research on Wind Farm Modeling and Simulating, D. 2004, Tsinghua University, Beijing, (2004).

[7] Zhang Ping, Liu Guopin, Zeng Xiangjun, Li Ling, Xia Yunfeng, and Yuan Chao, Optimal allocation of reactive power source for wind farms, J. Power System Protection and Control, vol. 36, pp.33-44, Oct. 16, (2008).

[8] Ren Puchun, Shi Wenhui, Xu Xiaoyan, and Zhao Haixiang, A study of voltage stability improvement by static var compensators in the electric power system including wind farms, J. Electric Power, vol. 40, pp.97-101, Nov. (2007).