直流换流阀阻尼电阻脉冲功率试验方法研究  

Study on Pulse Power Test Method for Damping Resistor in HVDC Converter Valve

作　　者：周万迪[1] 高冲[1] 汤广福[1] 

机构地区：[1]中国电力科学研究院,北京市昌平区102206

出　　处：《电网技术》2013年第1期89-93,共5页Power System Technology

基　　金：国家高技术研究发展计划(863计划)(2012AA052702)~~

摘　　要：阻尼电阻作为直流换流阀的核心部件之一,其电气性能也直接决定了换流阀的可靠性。分析了阻尼电阻在换流阀实际运行中经受的电气应力以及产生的功率损耗。在此基础上,采用等效模拟的思想研究了对阻尼电阻稳态和暂态脉冲功率进行试验的方法。结合试验方法,提出了基于重频充电原理的试验电路拓扑,阐述了试验电路的工作方式,并进行了电路仿真波形的分析,最后用所研制样机验证了设计的合理性。As one of the core components in HVDC converter valves, the reliability of the converter valve is directly depended on electric property of damping resistor. Firstly, the electrical stress endured by damping resistor during the operation of converter valve and resulting power loss are analyzed; then, based on the idea of equivalent simulation a method to test steady-state power and transient pulse power of damping resistor is researched. Combining with the testing method and based on the technology of repetitive charging, the topology of testing circuit is put forward and the working modes of the testing circuit are expounded, and the waveforms of circuit simulation are analyzed. Finally, the reasonableness of the proposed test method is verified by the developed prototype.

关 键 词：直流换流阀 阻尼电阻 脉冲功率 重频充电 

分 类 号：TM57[电气工程—电器]