基于多层降维与FOA优化的接地网腐蚀故障诊断

Insulators and Surge Arresters(2016)

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Abstract
针对变电站接地网腐蚀故障的精准定位与诊断问题,将果蝇优化算法运算速度快、全局收敛效果好的优点与电阻腐蚀倍数优化相结合,提出基于多层降维与果蝇优化的接地网腐蚀故障诊断方法.该方法以电压法与电阻法作为诊断机理,以果蝇优化算法作最优解全局搜索,结合多层降维解决接地网支路个数多的问题,降低优化复杂度,提高优化速度.以60条支路、36个节点的变电站接地网为例进行方法检验对比,结果表明,以果蝇优化算法为基础的电压法和电阻法均能取得较好的腐蚀故障诊断效果,电阻法的平均诊断误差略低于电压法,诊断效果较好,但时间代价更大.
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