Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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高压直流换流阀晶闸管结温计算研究

来源:电工电气发布时间:2017-08-23 13:23 浏览次数:2
高压直流换流阀晶闸管结温计算研究
 
张建彪,黄华,张翔,方太勋,恽强龙,杨帆
(南京南瑞继保电气有限公司,江苏 南京 211102)
 
    摘 要:针对串联水路的换流阀组件中各级晶闸管结温的差异,建立了阀组件晶闸管结温计算等效模型,利用PSCAD/EMTDC 仿真软件对各级晶闸管结温进行仿真求解,找出一个阀组件中结温最高的晶闸管;对结温最高的晶闸管两侧散热器中心区域开槽,埋置测温光纤,在合成试验平台上进行最大连续运行负荷试验,并从所测得的散热器台面最高温度对晶闸管结温进行校核,结温校核结果表明,阀组件晶闸管结温计算等效模型具有较高的准确性。
    关键词:高压直流;换流阀;晶闸管结温;光纤测温
    中图分类号:TM721.1;TN34     文献标识码:A     文章编号:1007-3175(2017)08-0024-03
 
Calculation Research of Thyristor’s Junction Temperature with High Voltage Direct Current Converter Valve
 
ZHANG Jian-biao, HUANG Hua, ZHANG Xiang, FANG Tai-xun,YUN Qiang-long,YANG Fan
(Nari-Relays Electric Co., Ltd, Nanjing 2111 02, China)
 
    Abstract: In allusion to the differences between various levels of thyristor’s junction temperature in converter valve module of cool water route with series connection, this paper established the valve module’s thyristor junction temperature calculation equivalent model. The simulation software PSCAD/EMTDC was used to carry out the solution for all levels of thyristor’s junction temperature to get the highest thyristor’s junction temperature in single valve module. The center area of heat sink at two sides of the highest thyristor’s junction temperature was slotted to embed the temperature measuring optical fiber to carry out the load test of maximum continuous operation in synthetic test platform. The thyristor’s junction temperature was checked by the measured highest temperature on heat sink table-board. The check result of junction temperature shows that the valve module’s thyristor junction temperature calculation equivalent model has high accuracy.
    Key words: high voltage direct current; converter valve; thyristor’s junction temperature; fiber temperature detection
 
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