采用时滞广域测量信号的区间低频振荡阻尼控制器设计

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Abstract For inter-area low-frequency oscillation (IALFO) in power system, a novel design strategy for power system damping controller employing time-delay wide-area measurements is proposed based on wide-area measurement system (WAMS) and flexible AC transmission system (FACTS) technology. Combining theories of delay-dependent state-feedback robust control and state observer, time-delay output feedback robust control is realized for wide-area power system. Take four-machine two-area power system as an example, an additive damping controller (ADC) for thyristor-controlled series capacitor (TCSC) is designed. Small signal analysis and time-domain simulation demonstrate that this controller can inhibit IALFO evidently. Meanwhile, it is insensitive to time delay and robust to operating conditions.

Key words： Low-frequency oscillation WAMS time delay FACTS robust control state observer

Received: 17 January 2008 Published: 14 February 2014

PACS:	TM712
	TM761

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	Qi Jun
	Jiang Quanyuan
	Cao Yijia

Cite this article:

Qi Jun,Jiang Quanyuan,Cao Yijia. Design of Damping Controller for Inter-Area Low-Frequency Oscillation Using Time-Delay Wide-Area Measurements[J]. Transactions of China Electrotechnical Society, 2009, 24(6): 154-159.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I6/154

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