面向恢复过程的环网并列合闸角两步调控方法

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Abstract Based on interactions between active generation increment and load restoration, a restoration process oriented two-step method for standing phase angle (SPA) difference reduction in transmission loop paralleling operation is proposed. The importance and sensitivity of SPA reduction with respects to load is used to determine its restoration sequence. Minimum active generation increments corresponding to restored load are obtained by nonlinear programming. Control strategies obtained by the two-step method can depict the detailed process of SPA reduction which uses active generation increment and load restoration as control variables. The SPA can be reduced to the allowable limit in a short time, and some important load can be restored concurrently. Thus power system restoration efficiency is improved and the progress is speeded up. The loss of system outage is hence reduced. Simulation results of Linyi-Rizhao subsystem in practical Shandong power system shows that the method can obtain nearly the same control strategies as the branch and bound algorithm. The participated generators are fewer and adjustment of active generation is smaller. Thus it can provide system operator with restoration process oriented decision-making support.

Key words： Power system restoration paralleling load restoration mixed integer programming optimal power flow

Received: 27 May 2011 Published: 10 March 2014

PACS:	TM732
	TM712

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Ye Hua,Liu Yutian. Restoration Process Oriented Two-Step Method for Standing Phase Angle Reduction in Transmission Loop Paralleling Operation[J]. Transactions of China Electrotechnical Society, 2011, 26(12): 168-174.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2011/V26/I12/168

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