分布式电源网损约束下智能配电网故障定位方法研究

Research on fault location method of intelligent distribution network with distributed power loss constraints

针对目前配电网故障定位存在可靠性与精准性比较低的问题,提出了分布式电源网损约束下智能配电网故障定位的方法。首先,基于传统故障定位的方法,提出了智能化配电网故障定位的结构设计,并且设计故障定位模型;之后,对配电网故障定义遗传算法进行分析,使用多种群优化搜索方式,使变异概率与交叉概率对于遗传算法影响降低,使搜索效率得到提高。最后,以上述改进思路,利用实际配电线路实现仿真验证,得出本文改进方法运行得到最优解。对比传统方法,故障定位方法效率有所提高,能够在分布式配电网故障定位中使用。

Aiming at the problem of low reliability and accuracy in fault location of distribution network,this paper puts forward a method of fault location of intelligent distribution network under the constraint of distributed power loss. First,based on the traditional fault location method,the structure design of intelligent distribution network fault location is proposed,and the fault location model is designed. Then,the genetic algorithm of distribution network fault definition is analyzed,and a variety of group optimization search methods are used to reduce the impact of mutation probability and cross probability on the genetic algorithm,so that the search efficiency is improved. Finally,with the above improvement ideas,the actual distribution line is used to achieve simulation verification,and the improved method in this paper can get the optimal solution. Compared with the traditional method,the efficiency of fault location method is improved,and it can be used in distributed distribution network fault location.