摘要
当交流系统发生故障时,为确保直流输电系统稳定运行,要求换流阀在暂态低电压工况下能正常工作。为满足IEC 60700-1中暂态低电压实验要求,介绍了用于进行换流阀暂态低电压实验的合成实验回路的系统构成,研究了暂态低电压的实验方法,使试品阀的正反向承受非对称电压,并对电压源辅助阀进行了优化,在满足实验要求的情况下合成实验回路能够稳定运行。实验结果表明该实验回路和实验方法可以满足IEC 60700-1中的的实验要求,验证了合成实验回路和实验方法的合理性。
To ensure the steady operation of DC transmission system when AC transmission system fails,the thyristor valve is required to operate normally under the condition of transient low voltage.In order to meet the requirements of the transient low voltage test according to IEC 60700-1,this paper introduces the system composition of the synthetic test circuit for the transient low voltage test,and makes some studies on the test method,applying forward and reverse asymmetrical voltage on the test valve.Furthermore,the auxiliary thyristor valve for voltage source is optimized,and the synthetic test circuit can be operated stably satisfying the test requirement.The test results show that the test circuit and test method can meet the test requirements in IEC 60700-1,and verify the rationality of the synthetic test circuit and test method.
作者
常忠廷
才利存
徐涛
张坤
王朋
CHANG Zhongting;CAI Licun;XU Tao;ZHANG Kun;WANG Peng(XJ Group Corporation,Xuchang 461000,China)
出处
《智慧电力》
北大核心
2019年第3期104-109,共6页
Smart Power
基金
国家重点研发计划资助项目(2016YFB0900900)~~
关键词
换流阀
暂态低电压
合成实验
非对称电压
电压源
thyristor valve
transient low voltage
synthetic test
asymmetrical voltage
voltage source
