Quantitative Voltage Control of Large-Scale Wind Base

Abstract:

The random variation of wind speed causes active power and reactive power injection of large-scale wind base to fluctuate constantly, this in turn leads to voltage fluctuation and unqualified voltage amplitudes of this area. This article proposes quantitative voltage control to solve this problem. Firstly, analyze the reason and characteristic of voltage fluctuation in large-scale wind base. Then apply sensitivity method to derive voltage/reactive power sensitivity coefficient matrix; this matrix is the product of two special matrices, one is symmetric and the other is diagonal. It can be demonstrated that the symmetric one has a relatively bigger value at the diagonal line; combined with the diagonal one, several simple conclusions can be obtained. According to the conclusions, quantitative voltage control flow can be established. In addition, operating mode of wind turbine generator is taken into account in the simulation process. Simulation results of IEEE 9 nodes system and an actual system demonstrate the validity of proposed measures.

• Periodical: Applied Mechanics and Materials (Volumes 341-342)
• Pages: 1294-1298
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.341-342.1294
• Online since: July 2013
• Authors: Zheng Jun Xing, Xiang Yu Kong, Fei Huang
• Keywords: Large-Scale Wind Base, Quantitative Voltage Control, Sensitivity Method, Voltage Fluctuation, Weakly Chained Diagonally Dominant Matrix

References

[1] Xuefang Liu, Hongtao Wang, Huadong Sun, Area Automatic Voltage Control of Large-Scale Wind Farms, Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific, pp.1-4, 27-29, March (2012).

DOI: 10.1109/appeec.2012.6307146

[2] Mustafa Kayikci and V. Milanovic, Reactive power control strategies for DFIG-based plants, IEEE transactions on energy conversion, Vol. 22, No. 2, pp.389-396, June (2007).

DOI: 10.1109/tec.2006.874215

[3] Ming Ding, Binbin Li, Pingping Han , Impacts of doubly-fed wind turbine generator operation mode on system voltage stability, Power Electronics for Distributed Generation Systems (PEDG), 2010 2nd IEEE International Symposium on, pp.602-606, 16-18 June (2010).

DOI: 10.1109/pedg.2010.5545883

[4] Bo Du, Wenying Liu, Ningbo Wang, etal, Voltage Optimization Control of the Region Integrating with Large Scale Wind Power Based on Sensitivity Method, Electric Power Science and Engineering, Vol. 28, No. 8, pp.13-17, August (2012).

[5] Shuzhen Pan, Shencan Chen, An upper bound for ||A-1||∞ of weakly chained diagonally dominant matrices, Journal of Fuzhou University, Vol. 40, No. 3, pp.281-284, June (2012).