光控模块式真空断路器操动机构电源设计  

Design on Operating Mechanism Power Supply of Fiber-controlled Vacuum Switch Module

作　　者：程显[1] 廖敏夫[1] 段雄英[1] 邹积岩[1] 

机构地区：[1]大连理工大学,电气工程学院,辽宁大连116024

出　　处：《电力电子技术》2011年第3期97-99,共3页Power Electronics

基　　金：国家自然科学基金项目(50977004);国家”十一五”科技支撑计划(2009BAA19B03,2009BAA19B05);中央高校基本科研业务费专项基金资助(DUT10ZD202)~~

摘　　要：随着电力电子技术的发展。研制模块化真空断路器对其操动机构电源的高可靠性、低功耗、小型化提出了要求。模块化真空断路器操动机构采用永磁机构,机构电源采用开关电源给电解电容充电储能后释放给机构线圈。介绍了一种基于UC3845的电流控制型开关电源电路,叙述了其工作原理,通过测试验证了设计的可行性。With the researching of modular-ized vacuum circuit breakers coming out,the high-stability,low power con-sumption and modularization type is re-quested.Modularized vacuum circuit breakers applied permanent magnetic ac-tuator.The electrolytic capacitors are charged by switching power supply,and the capacitors release the power to the coil of permanent magnetic actuator.A current mode control circuit based on UC3845 is introduced,the circuit operat-ing principles are described and the feasibility of the design is certificated.

关 键 词：开关电源 反激变换器 电容性负载 

分 类 号：TN86[电子电信—信息与通信工程]