电网技术 2010, 34(7) 36-40 DOI:     ISSN: 1000-3673 CN: 11-2410/TM

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PubMed
10 kV永磁断路器驱动电路设计及其脉宽调制仿真
于庆广,肖宜,赵彪
电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系),北京市 海淀区 100084
摘要

永磁断路器作为过零投切开关使用是一个新的应用领域。针对目前普遍采取的直接电容对断路器线圈放电,断路器线圈开关电流不一致而导致永磁断路器开关动作存在分散性的问题,设计了一种新型永磁断路器驱动电路,跟踪给定线圈工作电流,保证线圈开关动作电流相同,并给出了的电路参数选择方法及适用范围,最后用软件进行了仿真,验证了方案的可行性。

关键词
Design of Driving Circuit for 10 kV Permanent Magnetic Vacuum Circuit Breaker and PWM-Based Simulation of Its Realization
YU Qing-guang ,XIAO Yi ,ZHAO Biao
State Key Lab of Control and Simulation of Power Systems and Generation Equipments (Dept. of Electrical Engineering, Tsinghua University), Haidian District, Beijing 100084, China
Abstract:

It is a new application field of permanent magnetic vacuum circuit breakers to be used as voltage/current zero-crossing switch. As for the common-used direct discharge of capacitor to the coil of permanent-magnetic vacuum circuit breaker, the nonuniformity of switching current leads to the dispersivity of the motion of permanent-magnetic vacuum circuit breakers. For this reason, the authors design a new driving circuit for permanent-magnetic vacuum circuit breaker, which follows given working current of the coil to ensure that the switching current of permanent-magnetic vacuum circuit breaker can be kept consistent. The way to select suitable parameters of the circuit as well as its scope of application are given. The proposed circuit is simulated by software, and the feasibility of the proposed driving circuit is verified.

Keywords:
收稿日期 2010-03-26 修回日期 2010-01-28 网络版发布日期 2010-07-13 
DOI:
基金项目:

国家重点基础研究发展计划项目(973项目) (2009CB- 724304)。

通讯作者: 肖宜
作者简介:
作者Email: xiaoyith@163.com

参考文献:
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