考虑系统与敏感负荷兼容性的电压暂降指标

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Abstract Because of the impact on users caused by voltage sags and the need of making the price by quality in the electric power market, this paper proves the necessity of evaluating voltage sags. On this basis, a voltage sag quantitative evaluation method is presented. In this method, ITIC and SEMI F47 curves are taken as the reference with system and equipment taking into account. The invariable weights and relational coefficients are respectively acquired by means of the analytic hierarchy process (AHP) and the grey relational analysis (GRA). With the combination of relational coefficients and invariable weights, the variable weights are obtained and in the last the relational grades can be calculated. Less the relational coefficients are, more serious the voltage sags are. It shows that the proposed method can reflect the real disturbance levels of voltage sags after comparing with traditional energy indices.

Key words： Voltage sag compatibility quantitative index AHP GRA variable weights

Received: 26 November 2008 Published: 04 March 2014

PACS:

TM712

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	Lei Gang
	Gu Wei
	Yuan Xiaodong

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Lei Gang,Gu Wei,Yuan Xiaodong. A Voltage Sag Index Considering Compatibility Between System and Sensitive Equipment[J]. Transactions of China Electrotechnical Society, 2010, 25(12): 132-138.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2010/V25/I12/132

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