采用电网高压母线负载电流供能的光控真空开关模块操动机构电源设计  

Designment of Operation Mechanism Power Supply with Fiber-controlled Vacuum Switch Module Applying Energy Supply Provided by High Voltage Bus Current

作　　者：程显[1,2] 廖敏夫[1] 段雄英[1] 邹积岩[1] 马岩[1] 

机构地区：[1]大连理工大学电气工程学院,大连116024 [2]河南城建学院电气系,平顶山467044

出　　处：《高电压技术》2011年第8期2073-2080,共8页High Voltage Engineering

基　　金：国家自然科学基金(50977004);国家"十一五"科技支撑计划(2009BAA19B032009BAA19B05);中央高校基本科研业务费专项基金(DUT10ZD202)~~

摘　　要：基于光控真空开关模块操动机构的需要,提出一种采用电网高压母线负载电流供能的光控真空开关模块操动机构电源技术。以此论述了操动机构电源的工作过程,进行了操动机构电源取能线圈的理论计算与电源电路拓扑结构的选型,设计了基于UC3845的单端反激式开关电源的硬件电路,实现了操动机构电源的输入输出保护功能。实验证明,操动机构电源可在电网高压母线额定电流10%～120%区间稳定工作;以1个4700μF电解电容和2个2200μF电解电容为负载进行间隔30 s连续充放电104次测试,电源样机工作正常;进行电磁兼容性实验电源样机无损坏,测试结果良好。操动机构电源样机在光控真空开关模块中能可靠运行。Based on the requirements of the fiber-controlled vacuum switch module operating mechamsm, a tecnnoto- gy of operation mechanism power supply of the fiber-controlled vacuum switch module whose energy supply was provided by bus current in the power grid was proposed. Moreover, the working process of power supply was de- scribed,the theory calculation of draw-out power coll and the selection of eircuit topology structure of power supply were obtained, the hardware circuit of single fly-back switch power supply based on UC3845 was designed, and the input and output protection functions of power supply were achieved. The experiments prove that power supply can work steadily in 10%-120% rated current of the high voltage bus in the power grid. Adopting one 4700 μF electro- lytic capacitor and two 2200 μF electrolytic capacitors as the load, no accident occurs in the experiments of 30 s in- terval successive charge-discharge 10,000 times,and the results of EMC testing is very good. The operation mecha- nism power supply proto can work reliably in fiber-controlled vacuum switch module.

关 键 词：真空开关 操动机构 电源 取能线圈 单端反激 电容性负载 UC3845 

分 类 号：TM564.2[电气工程—电器]