永磁真空断路器的同步关合技术研究与仿真  

Research and Simnlation on the Synchro Switching Technology of Permanent-magnet Vacuum Circuit Breakers

作　　者：陈亚彬[1] 顾伟康[1] 柳庆东[1] 

机构地区：[1]东南大学电气工程学院,江苏南京210000

出　　处：《电气开关》2015年第3期76-80,86,共6页Electric Switchgear

摘　　要：从同步关合技术的意义和原理入手,从理论上分析了关合电容器的相位选择策略,并通过Matlab仿真加以证实。然后分析了永磁机构同步关合的影响因素,包括真空断路器的预击穿特性、控制电压对合闸时间的影响、环境温度对合闸时间的影响以及老化与磨损对合闸时间的影响,通过对这些影响因素的分析,研究了同步分合闸控制的关键技术,并利用FIR滤波的方法提取参考信号的过零点,应用BP神经网络和自适应算法预测永磁机构真空断路器分合闸时间。This paper start with the significance and principle of the synchronous closing technology, theoretical ana- lyzed the phaseselectionstrategies of closing capacitors, and verify through the Matlab simulation. Then the factors effec- tingthe synchronous switching of PMA has been analyzed, including the prebreakdown characteristics ofvacuum circuit breaker, and the influence of control voltage and environment temperature and aging and wearingon closing time, through the analysis of these effect factors, the key technology of PMA based synchronousswitching has been researched, and u- sing FIR filter to detect the zero-crossing of the reference signal, adopting BP neural network and adaptive algorithm to- predict the closing and opening time of vacuum circuit breaker.

关 键 词：永磁机构 同步关合技术 神经网络 

分 类 号：TM56[电气工程—电器]