电容放电装置研究  

Research on Capacitor Discharge Device

作　　者：李杨 顾志斌 陈浩 朱铭炼[2] LI Yang;GU Zhi-bin;CHEN Hao;ZHU Ming-lian(NR Electric Power Electronics Co.,Ltd.,Changzhou 213022,China;不详)

机构地区：[1]常州博瑞电力自动化设备有限公司,江苏常州213022 [2]南京南瑞继保电气有限公司,江苏南京211102

出　　处：《电力电子技术》2022年第2期1-3,共3页Power Electronics

摘　　要：以柔直系统断电后,换流阀子模块电容存在残余电荷,如何快速放电这一难题为研究对象,进行了电容放电原理研究、放电方案对比,并进行了整个放电系统和放电装置的设计,对电阻、气缸及接插件进行了选型设计。最后,制作了电容放电装置,并进行了放电对比试验,结果表明:引入电容放电装置可以快速达到放电的目的,放电速率是自然放电的20~25倍,满足使用要求。The problem of how to quickly discharge the residual charge in the sub module capacitor of converter valve after the power failure of flexible direct current system is studied,the principle of capacitor discharge is studied and the discharge schemes are compared,the whole discharge system and discharge device are designed,and the resis-tance,cylinder and connector are selected and designed.Finally,the capacitor discharge device is made and the dis-charge comparative test is carried out,the results show that the introduction of capacitor discharge device can quickly achieve the purpose of discharge,and the discharge rate is 20~25 times of the natural discharge,which meets the re-quirements of use.

关 键 词：电容 放电装置 柔直系统 换流阀 

分 类 号：TM151.3[电气工程—电工理论与新技术]