摘要
为实现快速、准确的定位配电网故障区段,通过设定辅助搜索空间,将连续域上的搜索转换为离散域上的同步搜索,采用实型向量与二进制向量混合编码策略,将差分进化算法(DE)运用于配电网故障定位。通过混合自适应缩放比例因子加强算法参数的自适应性,使算法具有良好的收敛速度。对配电网单点故障以及多点故障仿真表明,该方法性能不随参数初值的变化发生明显的波动,能准确和快速定位故障区段,容错性好。
In order to locate fault section of distribution network quickly and accurately,an improved differential evolution algorithm was proposed in the paper.The method transforms a continuous space into synchronous search over discrete spaces with a definition of adjuvant search space,and with hybrid encoding of real type vector and binary vector.With enhancing adaptability of parameters,the algorithm has good convergence speed and accuracy.Simulation results for single point fault and multiple faults show that the proposed algorithm doesn＇t performance unsteady obviously with the initial parameters values change,and it has accurate and quick fault location and better fault-tolerance.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2011年第1期17-21,共5页
Proceedings of the CSU-EPSA
基金
国家自然科学基金资助项目(50877024)
河海大学自然科学基金资助项目(2009421411)
关键词
差分进化
配电网
故障定位
混合编码
辅助搜索空间
differential evolution
distribution network
fault location
hybrid encoding
adjuvant search space
