基于广域局部量测信息的复杂电力系统自适应低频保护策略研究

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Abstract In this paper, the characterizations of the dynamic frequency response of complex power systems are analyzed firstly. Then a novel adaptive control strategy for under frequency protection and load shedding associated with synchronous phase measurement unit(PMU) is proposed in this paper. With the help of the PMU, the magnitude of active power deficit is estimated by using the simplest expression of the generator swing equation and static load model since the frequency, voltages and their rate of change can be obtained by means of the local measurements in real-time. Then, a robust control strategy with consideration of the uncertainties in system is presented. The effectiveness and robustness of the proposed control strategy are investigated carrying out on 17-generator 69-bus test system under various disturbance scenarios.

Key words： Wide-area measurement system(WAMS) wide area protection adaptive under frequency load shedding

Received: 06 November 2012 Published: 05 November 2014

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	Yang Deyou
	Cai Guowei

Cite this article:

Yang Deyou,Cai Guowei. Adaptive Under Frequency Load Shedding Schemes for Complex Power Systems Using Local Measurements[J]. Transactions of China Electrotechnical Society, 2014, 29(10): 266-275.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I10/266

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