摘要
采用架空输电线路分布参数模型及电压电流传播方程,考虑柔性直流系统阀侧的工频等值电路,建立了交流输电线路对柔性直流线路的工频电磁影响模型及连接变压器阀侧直流偏磁电流模型。最后以±160 kV柔性直流线路及110 kV交流输电线路参数为基础,分析了平行长度、平行距离、交流换位、直流换位等因素对偏磁电流的影响。
A model of power frequency eleetrnmagnetie impact of AC transmission lines on the parallel VSC-HVDC transmissinn lines and a DC bias current mendel on the eonverler transforiner side are constructed by using the distrilmted parameters rondel of overllead transmission line and the vohage-eurrent transport equation with consideration of the power frequency equivalent circuit on the side of DC system valve, lu the end, hased on the parameters of existing ±160 kV VSC-HV DC Transmission Lines and 110 kV AC Transmissinn Lines, the impacts of such factors as parallel distance, parallel length, AC transposition and DC transpositinn on bias current are analyzed.
出处
《中国电力》
CSCD
北大核心
2013年第9期96-101,共6页
Electric Power
关键词
柔性直流输电线路
交直流平行
电磁感应
直流偏磁电流
VSC-HVDC transmission line： AC transmission line in parallel with DC transmission line： eleetrornagnetie induction： DC bias current
