摘要
零功率试验是验证直流融冰系统功能完好性的有效手段。以某500 kV变电站直流融冰系统为例,简述了零功率试验原理,基于MATLAB/Simulink建立了相应的仿真模型,对直流融冰系统零功率试验时的稳态运行工况、直流侧和交流侧谐波、晶闸管的换相过电压进行研究,仿真结果与实际较符合,证明了仿真模型的有效性。
DC ice-melting system can effectively eliminate icing on overhead transmission lines,and zero power test is an effective means to verify the functional integrity of DC ice-melting system.Taking the DC ice-melting system of a 500 kV substation as an example,the principle of zero power test is described,and the corresponding simulation model is established based on MATLAB/Simulink;On the basis of the established simulation model,the steady-state operation conditions,DC side and AC side harmonics,and commutation overvoltage of thyristor during zero power test of DC ice-melting system are studied.The simulation results are in good agreement with the actual situation,which proves the effectiveness of the simulation model.
作者
刘浩
李道豫
邢方勃
王蓉东
邱志远
邹复春
马俊杰
LIU Hao;LI Daoyu;XING Fangbo;WANG Rongdong;QIU Zhiyuan;ZOU Fuchun;MA Junjie(CSG EHV Power Transmission Company Guiyang Bureau,Guiyang 550081,China;XJ Electric Co.,Ltd.,Xuchang 461000,China)
出处
《电工技术》
2022年第5期178-182,184,共6页
Electric Engineering
关键词
直流融冰
零功率试验
稳态分析
谐波分析
换相过电压
DC ice-melting
zero power test
steady state analysis
harmonic analysis
commutation overvoltage
