高压直流换流变抽头控制策略对换流阀损耗的影响研究  

Study of Impacts of High-Voltage DC Current Converter Transformer Tapping Control Strategy on Converter Valve Losses

作　　者：赵中原[1] 瞿少君 包顺先[1] 程璐璐[1] 

机构地区：[1]南京南瑞继保电气有限公司,江苏南京211102 [2]南方电网超高压输电公司贵阳局,贵州贵阳550000

出　　处：《电工电气》2013年第3期13-15,30,共4页Electrotechnics Electric

摘　　要：针对贵广直流输电系统工程,分析换流变抽头定电压控制和定触发角控制策略,研究了两种不同模式下换流阀损耗变化规律。根据IEC61803标准和高压直流稳态运行规律,建立了高压直流运行工况参数与换流阀损耗直接数学关系,并给出了两种不同抽头控制模式下运行工况参数与换流阀损耗的工程换算用数学公式,为高压直流换流站电压控制模式选择及换流器单元长期安全稳定运行提供了理论基础与依据。Abstract： Aiming at Gui-Guang DC power transmission system project, this paper analyzed the fixed voltage control of converter transformer tapping and the fixed trigging angle control strategy, studying converter valve losses changing rules under two kinds of different modes. Based on standard IEC 61803 and high-voltage DC stable operation rules, this paper established the direct math- ematic relationship of high-voltage DC operation working condition parameters with converter valve losses and gave the engineering converting mathematic formulas of operation working condition parameters and converter valve losses under two kinds of different tapping control modes, to provide theoretical foundation bases for high-voltage DC converting station voltage control mode selection and converter unit long-time safe and stable operation.

关 键 词：高压直流 换流阀 抽头控制 损耗关系 

分 类 号：TM721.1[电气工程—电力系统及自动化]