永磁断路器分合闸电容模糊恒流充电特性分析  

Analysis of Fuzzy Control Constant Current Charging Characteristic for Breaking and Making Capacitor of Permanent Magnet Circuit Breaker

作　　者：彭靳[1] 汪先兵[1] 王祥傲[1] 叶玺臣[1] 王欢[1] Pengjin;Wang Xianbing;Wang Xiangao;Ye Xichen;Wang huan(School of Electronic and Electrical Engineering, Chuzhou University, Chuzhou 239000, Chin)

机构地区：[1]滁州学院电子与电气工程学院,安徽滁州239000

出　　处：《系统仿真学报》2018年第7期2648-2655,2665,共9页Journal of System Simulation

基　　金：国家自然科学基金(51307011);安徽教育厅自然科学研究重点项目(KJ2016A528);安徽省高校优秀青年人才基金重点项目(2013SQRL093ZD)

摘　　要：针对难以精确实现对永磁断路器分合闸电容器组恒流充电控制,提出了一种模糊恒流充电技术。在分析分合闸电容器组恒流充电工作特性的基础上,构建了恒流充电的电流偏差e、偏差变化率ec和输出量u的隶属度函数与模糊控制规则,建立了替代复杂的模糊控制算法的二维查询表格,可有效提高模糊恒流控制系统的实时性。搭建了恒流充电系统的Matlab仿真模型与智能控制单元,仿真和实验结果表明,该方法实现了分合闸电容器组恒流充电控制,有效地提高了电容器组的充电快速性和使用寿命。In order to realize the precise control of breaking and making capacitors constant current charging for the permanent magnet（PM） circuit breaker, a fuzzy constant current charging technology of breaking and making capacitors is put forward. On the basis of analyzing the working characteristics for breaking and making capacitors constant current charging, the membership functions of current deviation e, deviation changing rate ec and output variable u for breaking and making capacitors constant current and fuzzy control rules are set up. The establishment of a two-dimensional lookup table replacing the complex fuzzy control algorithm can effectively improve the fuzzy constant current control system in real time. Matlab simulation model and intelligent control unit of constant current charging system for PM circuit breaker are built and developed. The simulation and experiment results show that the fuzzy control method can achieve the constant current charging control of breaking and making capacitors and can effectively improve the charging speed and lifetime of PM circuit breaker capacitors.

关 键 词：永磁断路器 分合闸电容器 模糊恒流充电 模糊算法和二维表格 智能控制单元 

分 类 号：TM572[电气工程—电器]