6 kV高压电动机CT极性离线检测法的复频域分析及仿真研究

Complex frequency domain analysis and simulation study of CT polarity off-line detection method for 6 kV high-voltage motor

文章首先介绍了电流互感器在电力系统中的重要性以及电流互感器的接线方法,并阐述了电流互感器极性接错的后果。文章针对电流互感器极性离线检测法,分别从电磁感应原理分析、数学模型的建立和定性计算,以及MATLAB仿真验证3个角度证明了该方法检测电流互感器极性的正确性。

Firstly,the importance of current transformer in power system and the wiring method of current transformer are introduced.Then the consequences of polarity misconnection of current transformer are also discussed.In view of the off-line detection method of current transformer polarity,the correctness of the method is proved from electromagnetic induction principle analysis,mathematical model establishment and qualitative calculation,and MATLAB simulation verification.