文章摘要
殷冠贤,谢晔源,朱铭炼,等.高结温无延迟的VSC-HVDC合成试验方法[J].电力系统自动化. DOI: 10.7500/AEPS20170821002.
YIN Guanxian,XIE Yeyuan,ZHU Minglian, et al.An Un-delayed Synthetic Test Method with High Junction Temperature for VSC-HVDC[J].Automation of Electric Power Systems. DOI: 10.7500/AEPS20170821002.
高结温无延迟的VSC-HVDC合成试验方法
An Un-delayed Synthetic Test Method with High Junction Temperature for VSC-HVDC
DOI:10.7500/AEPS20170821002
关键词: 模块化多电平换流器  换流阀  短路试验  运行试验  合成试验
KeyWords: modular multilevel converter  converter valves  short-circuit test  operational test  synthetic test
上网日期:2018-02-11
基金项目:国家电网科技项目《±500kV/3000MW高压大容量模块化电压源型换流器关键技术研究及样机研制》
作者单位E-mail
殷冠贤 南京南瑞继保电气有限公司 yingx@nrec.com 
谢晔源 南京南瑞继保电气有限公司 xieyy@ nrec.com 
朱铭炼 南京南瑞继保电气有限公司 zhuml@ nrec.com 
田杰 南京南瑞继保电气有限公司 tianj@nrec.com 
摘要:
      为了实现对电压源型高压直流输电(VSC-HVDC)换流阀稳态应力和直流双极短路暂态应力的综合考核,提出了一种高结温无延迟的VSC-HVDC合成试验方法及其电路拓扑,无延迟的特点保证了注入带直流偏置的短路大电流时换流阀开关器件处于最高稳态结温状态,同时该方法有效地降低了换流阀的试验成本及电源需求。首先,分析了VSC-HVDC换流阀稳态运行和直流双极短路故障时的电应力。其次,结合应力等效机理,提出了高结温无延迟的VSC-HVDC合成试验方法,并阐述了其运行机理。最后,通过搭建仿真模型和试验平台进行了验证,结果证明了提出的合成试验方法及其电路拓扑的可行性和有效性。
Abstract:
      In order to achieve the comprehensive assessment of the steady stress and the transient stress by dc side bipolar fault of voltage source converter of high voltage direct current (VSC-HVDC) valves. An un-delayed synthetic test method with high junction temperature for VSC-HVDC is proposed. The switching devices of the converter valves is guaranteed to be at the highest junction temperature state when the short circuit current is injected. At the same time, the costs and power requirements of the converter valves test have been effectively reduced by this test method. To begin with, the electric stress of steady-state operation and dc side bipolar fault of VSC-HVDC is studied. Secondly, based on the stress equivalence mechanism of VSC-HVDC, an un-delayed synthetic test with high junction temperature for VSC-HVDC is presented. Then the test’s operation mechanism is expounded. Finally, the validity of the synthetic test method and its circuit topology is verified by simulation model and test platform.
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