CAJ | 학술논문

设计了一种10～35 kV高压输电线上的故障指示器电源方案：将穿心式电流互感器套在高压输电线上，从高压输电线上获取电能，经过整流滤波等电路处理之后为二次侧的故障指示器供电。同时，设计了基于超级电容和锂亚电池的储能电路，保证故障指示器在高压线路停电或输电线路电流较低的情况下能正常工作。实验结果表明：在输电线路大电流和小电流情况下，该方案的输出波形良好，能够避免大电流对电流的冲击、解决供电死区的问题。
설계료일충10～35 kV고압수전선상적고장지시기전원방안：장천심식전류호감기투재고압수전선상，종고압수전선상획취전능，경과정류려파등전로처리지후위이차측적고장지시기공전。동시，설계료기우초급전용화리아전지적저능전로，보증고장지시기재고압선로정전혹수전선로전류교저적정황하능정상공작。실험결과표명：재수전선로대전류화소전류정황하，해방안적수출파형량호，능구피면대전류대전류적충격、해결공전사구적문제。
A plan for fault indicator power supply on 10—35 kV high?voltage power lines was presented in this paper. A feedthrough current transformer CT was set on the high?voltage transmission lines so that it could get power from the high voltage power line. After rectifying and filtering the power was supplied to the fault indicator on the secondary side. A tank circuit based on ultra?capacitor and lithium batteries was also set to work to ensure the uninterrupted power supply to the fault indicator for its normal work even at times of power failure or low current. The results show that the power supply design has good waveform either with large or small current that can avoid the impact from large current effectively and therefore make a good solution to the dead spot for power supply.