中国电机工程学报2018，Vol.38Issue(2)：547-554,8.DOI:10.13334/j.0258-8013.pcsee.161515
基于晶闸管反向恢复电流分段拟合的直流换流阀换相过冲电压计算方法研究
Study on the Calculation of the Commutation Overshoot of HVDC Valve Based on the Piecewise Fitting of Reverse Recovery Current of Thyristor
摘要
Abstract
Thyristor,RC damping circuit and valve arrester are the main part of primary loop of ultra-high-voltage direct current (UHVDC) valve,determining the cooperation the parameters of the three types of devices is the chief work in the electrical design of UHVDC valve.The mechanism of the commutation overshoot was revealed.The interaction effect of the three types of devices was also confirmed.Then the circuit differential equation was established,and the equation was solved by piecewise fitting the reverse recovery current of thyritor.The precision of the calculation method that was put forward in the paper was proved by comparing the calculation results with the test results.关键词
特高压直流/换流阀/换相过冲/RC阻尼参数Key words
ultra-high-voltage direct current (UHVDC)/converter valve/commutation overshoot/RC damping parameters分类
信息技术与安全科学引用本文复制引用
高冲,张静,周建辉,阴春晓..基于晶闸管反向恢复电流分段拟合的直流换流阀换相过冲电压计算方法研究[J].中国电机工程学报,2018,38(2):547-554,8.基金项目
国家电网公司科技项目(5455ZS150004,SGRI-ZLKJ-[2015]-217).Scientific and Technological Project of State Grid Corporation of China (5455ZS15000,SGRI-ZLKJ-[2015]-217). （5455ZS150004,SGRI-ZLKJ-[2015]-217）
