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高压电器  2015 

TCU结构换流阀组件中晶闸管级例行试验方法研究

, PP. 99-105

Keywords: 高压直流输电,换流阀,晶闸管级,例行试验,TCU

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Abstract:

换流阀是高压直流输电(HVDC)系统的核心装备之一,其性能直接影响整个系统的可靠性和稳定性。晶闸管级单元是高压直流换流阀中的最小单元,在直流输电工程投运前以及设备检修期间,需要对每一个阀组件晶闸管级单元进行例行试验,工作量巨大。目前没有针对TCU结构晶闸管级单元的具体例行试验方案,系统地建立一套TCU结构晶闸管级的试验方法,为换流阀的可靠运行和检修,提高必要保障和技术支持显得尤为重要。文中在分析晶闸管级单元电气原理及失效模式的基础上,结合IEC60700-1―2008,提出了针对TCU结构晶闸管级单元的试验项目、方法,并将该例行试验方法投入实际工程中应用,通过试验验证了文中研究方法的合理性和正确性。

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