摘要
类电磁机制(EM)算法在处理传感器馈线自动化终端(FTU)数据对配电网故障区间进行定位时应用效果较好,但其存在参数敏感、电荷溢出和粒子易陷入局部最优的问题。通过引入粒子分量交换搜索,改善粒子电量、合力和移动步长计算式,对其进行了改进。针对配电网运行灵活多变的特点,以联络开关为界限将配电网划分为多个配电网模块,并对模块进行加权,基于此构建了一种配电网故障区间定位新模型,以提高诊断算法的运行效率。仿真结果表明:改进的EM算法相对于标准EM算法,其只需要较少的种群和迭代次数,即可快速实现对传感器FTU数据的处理,并对配电网故障区间进行准确定位。
The electromagnetic-like mechanism（EM） algorithm has good effect in processing data of sensor feeder terminal unit（FTU） on fault section location of distribution network,but there are some problems such as parameter sensitivity,charge overflow and particle falling into local optimum.The particle component exchange searching method is brought in and the formula for particle charge and force and step are improved.In consideration of flexible operation,the large scale of distribution network is divided into several distribution network module according to the loop switches,then the modules are weighted,thus a new model which can improve operation efficiency of the diagnosis algorithm is built.The simulation results show that compared with standard EM algorithm,the improved EM algorithm which only needs fewer population and iteration numbers can quickly realize data processing of sensor FTU and fault section location of distribution network.
出处
《传感器与微系统》
CSCD
北大核心
2012年第11期70-73,共4页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(60973032
61173108
60673084)
湖南省自然科学基金重点资助项目(10JJ2045)
关键词
传感器FTU
故障定位
配电网
类电磁机制算法
sensor feeder terminal unit（sensor FTU）
fault location
distribution network
electromagnetic-like mechanism（EM） algorithm
