和声算法在含DG配电网故障定位中的应用

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Abstract The distributed generators(DG) make the establishment of switch function extremely complex and slow searching when optimization algorithms are applied to locate the fault points. In order to make the location of fault points of distributed system with DG rapid and accurate,the model based on bilateral power flow is estabilised in this paper,suited for not only single-source-single-fault situation,but also the situation of multiple distributed generators with multiple faults. A regional processing method for DG distribution network is raised,which divides the network into active trees and passive branches. The solution's dimension is reduced by eliminating the passive branches free of fault current,so as to improve search efficiency. This method takes fault position as variable,so a large number of infeasible solutions are eliminated by limiting the fault number. It applies harmony algorithm on global optimization due to its speed and accuracy. The validaty and rapidity are confirmed by example analysis.

Key words： Fault location distributed generation switch function harmony search algorithm regional processing

Received: 20 September 2011 Published: 11 December 2013

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TM72

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	Articles by authors
	Liu Bei
	Wang Feng
	Chen Chun
	Huang Haochuan
	Dong Xuzhu

Cite this article:

Liu Bei,Wang Feng,Chen Chun等. Harmony Search Algorithm for Solving Fault Location in Distribution Networks with DG[J]. Transactions of China Electrotechnical Society, 2013, 28(5): 280-286.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I5/280

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