接地网故障监测线的计算机辅助优化布置

Computer Aided Layout Optimization of Monitor Lines for Grounding Grids Corrosion Diagnosis

为方便接地网导体腐蚀故障的诊断,提出在建设接地网时在一些网络节点增设故障监测线,给出一种基于遗传算法的接地网故障监测线最优布置方案的生成方法,对子优化过程进行多次迭代,能达到以最少的监测线使所有支路都明晰的目的。论述染色体编码方法和能避免不可行解的初始种群生成方法、交叉方法及变异方法。对一个60支路的接地网进行监测线优化布置,结果证明了该方法的可行性。

To benefit grounding grids corrosion diagnosis, monitoring lines are suggested to implant on some nodes of the grounding grid in the construction process. A genetic algorithm based method of layout optimization of monitoring lines is put forward. The approach consists of some iteration of a sub-process. The optimum layout of making all of the branches clear with the minimum number of monitoring lines can be worked out. The coding of chromosomes is described. The ways to avoid of the unfeasible solutions in the processes of the initial population forming, crossover and mutation operation are discussed. The method of layout optimization is used on a grounding grid with sixty branches, and the result shows the feasibility of the approach.