Black-Start Plan Assessment for Power Systems with Isolated Island Based on Rough Entropy

doi:10.11930/j.issn.1004-9649.2014.5.11.5

Abstract

Abstract: Assessment of black-start plans for power system with isolated islands is an issue of fuzzy multi-criteria. An assessment index architecture for black-start plans of power systems with isolated islands was established, in which rough entropy was introduced, the qualitative indices were quantified by using triangular fuzzy number, the continuous attributes were discretized, and the redundant or unimportant attributes were reduced by using rough sets theory. As the result, a method to obtain the weight of assessment indices for black-start plans was conducted, which can be used with the ideal point method to give the sequence of black-start plans for power systems with isolated islands. This method mixes the quantitative and qualitative indexes together reasonably, and takes account of the relevance and redundancy between indexes. A practical example proves its effectiveness and feasibility.

Key words: power system, isolated island, black-start, rough entropy, decision-making

CLC Number:

TM712

OU Wei-jian, FANG Xin-yan, HU Zi-heng, HUANG Mei. Black-Start Plan Assessment for Power Systems with Isolated Island Based on Rough Entropy[J]. Electric Power, 2014, 47(5): 11-16.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.5.11.5

https://www.electricpower.com.cn/EN/Y2014/V47/I5/11

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