电力系统配电网故障诊断的改进最小碰集方法研究

Improved Minimum Collision Set Method for Fault Diagnosis of Power System Distribution Network

最小碰集计算基于模型诊断,可应用在配电网的故障诊断中。基于智能优化算法的最小碰集计算方法,在定位效率上存在一定的提升空间。将细菌觅食算法引入最小碰集计算,针对觅食效率低下的问题,提出了一种改进趋向环节。通过测试最小冲突集和分析17节点算例的配电网得知,改进的细菌觅食算法可以更好地定位。

The minimum hitting set calculation is based on model diagnosis and can be applied to fault diagnosis of distribution network.The minimum collision set calculation method based on intelligent optimization algorithm has certain improvement space in positioning efficiency.The bacterial foraging algorithm is introduced into the calculation of minimal hitting set,and an improved trend link is proposed for the low efficiency of foraging.By testing the minimum conflict set and analyzing the 17 bus distribution network,it is concluded that the improved bacterial foraging algorithm has better positioning efficiency.