摘要
柔性直流(voltage sourced converter-high voltage direct current,VSC-HVDC)输电因其独特的优势已在世界范围内取得广泛的应用。柔性直流换流阀是柔性直流输电的关键设备,其损耗对柔性直流输电的经济运行至关重要,对换流阀进行准确的损耗测量与分析可以指导效率优化、元器件选型和散热器设计等。本文调研了电力电子设备损耗测量技术,分析了国内外双脉冲法、电测法和量热法的研究现状,提出了基于3种测量方法的换流阀功率模块损耗测量试验方案,包括测量方法、试验回路设计、设备选型、软件平台和控制方法、测试步骤及不确定度和损耗估算方法。在搭建的功率模块对冲试验平台上完成了基于3种方法的损耗测试试验,对3种方法的试验结果进行了不确定度分析,为柔性直流工程中功率模块损耗测试提供直接参考。
Voltage sourced converter-high voltage direct current(VSC-HVDC)transmission has been widely applied all over the world owing to its unique advantages.Converter valve is the key equipment of VSCs,its losses are significant to the economically operation of VSC stations.Analysis and accurate measurement of the losses can make great contribution to efficiency optimization,devices selection and thermal design,etc.This paper investigates the losses measurement technology of power electronics equipment and surveys the academic research at home and abroad of the double pulse method,electrical method and thermal method for losses measurement.It comes up with three test schemes for measuring losses of VSC sub-modules respectively,the schemes include measuring method,test circuit design,equipment selection,software platform and its control method,test procedure,uncertainty and loss estimation method.In the physical test platform,tests based on three schemes are carried out,the uncertainty of tests results is analyzed.This paper provides reference for measuring losses of VSC sub-modules in practical projects.
作者
熊岩
杨柳
钟伟华
周月宾
朱喆
许树楷
XIONG Yan;YANG Liu;ZHONG Weihua;ZHOU Yuebin;ZHU Zhe;XU Shukai(State Key Laboratory of HVDC,Electric Power Research Institute,CSG,Guangzhou 510663,China;China Southern Power Grid Co.,Ltd.,Guangzhou 510663,China)
出处
《南方电网技术》
CSCD
北大核心
2020年第11期27-35,共9页
Southern Power System Technology
基金
中国南方电网科技项目(ZBKJXM20170061)
广东省重点领域研发计划资助项目(2019B111109001)。
关键词
柔性直流
功率模块
损耗测量
量热法
不确定度分析
VSC-HVDC
power module
losses measurement
thermal method
uncertainty analysis
