电力系统动态无功优化并行算法及其实现

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Abstract When a dynamic reactive power optimization problem in next 24 hours is solved by nonlinear primal-dual interior-point algorithm incorporating discretization penalty, the reduced correction equation’s dimension increases rapidly with enlargement of system size because the limits for switching operations of capacitors and transformer load tap changers should be considered. But it is found easily that the coefficient matrix of the reduced correction equation has block bordered diagonal structure and hence the correction equation can be accurately decomposed into 25 sets of low-dimension linear equations. Therefore, a coarse-grained parallel algorithm is proposed and implemented under message passing interface (MPI) based parallel environment. Numerical results on a real 14-bus and IEEE 118-bus systems demonstrate that the proposed algorithm can accelerate computational process obviously and has application potential in large-scale power system.

Key words： Dynamic reactive power optimization nonlinear primal-dual interior-point method discretization penalty parallel computing message passing interface

Received: 10 September 2007 Published: 11 February 2014

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	Miao Nanlin
	Liu Mingbo
	Zhao Weixing

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Miao Nanlin,Liu Mingbo,Zhao Weixing. Parallel Algorithm of Dynamic Reactive Power Optimization and Its Implementation[J]. Transactions of China Electrotechnical Society, 2009, 24(2): 150-157.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2009/V24/I2/150

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作者简介:缪楠林男, 1984年生, 硕士研究生, 主要研究方向为电力系统动态最优潮流并行计算。刘明波男, 1964年生, 教授, 博士生导师, 主要研究方向为电力系统优化、运行与控制。