基于输出反馈和区域极点配置的电力系统阻尼控制器研究

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Abstract Based on the characteristics of power systems with uniform damping, the paper puts forward the design method of power system damping controllers which makes use of uniform damping thought and region pole assignment method to realize uniform damping control of low-frequency oscillation(LFO). First, the characteristics of power systems with uniform damping and the essence of damping LFO of controllers are analyzed, then considering the participate factors and the obtain of wide-area signal, input signals and location of controllers are chosen. Finally according to the damping of power system, feasible region of pole assignment is chosen and the paper converts the damping of LFO into the pole assignment problem of multi-machine damping controllers. Because the control goal is to make every mode with the same damping, which avoids decreasing damping of other modes in excess, the coordination of controllers is realized. At last, take the IEEE 4-machine 11-node system as example, the simulation of different operation modes indicates that the control method is valid and robust. The method puts forward a new thought for restraining LFO.

Key words： Low-frequency oscillations uniform damping region poles assignment coordination control linear matrix inequality power system stabilizer

Received: 02 November 2009 Published: 07 March 2014

PACS:

TM712

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	Ma Yanfeng
	Zhao Shuqiang
	Gu Xueping

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Ma Yanfeng,Zhao Shuqiang,Gu Xueping. Research on Power System Damping Controllers Based on Output Feedback and Region Poles Assignment[J]. Transactions of China Electrotechnical Society, 2011, 26(4): 175-184.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I4/175

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