电流互感器饱和及其影响因素的仿真研究  

Simulation Study on Current Transformer Saturaiton and Its Influencing Factors

作　　者：郑岗[1] 熊列彬[1] 邢桂凤[1] 高毅[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《电气开关》2010年第6期41-43,46,共4页Electric Switchgear

摘　　要：电流互感器(TA)是电力系统中的重要传变设备,但电流互感器的铁芯饱和可能引起微机继电保护误动和拒动。首先分析了电流互感器的饱和过程,得出了影响互感器暂态特性的主要因素。然后应用电力系统仿真软件MATLAB,建立了电流互感器模型,对电流互感器的饱和特性进行了详细分析和仿真;仿真结果与理论分析完全一致。A current transformer is an important transmission facility in electric power systems,but the iron-core saturatin of the transformer can result in the malfunction and refusing action of microcomputer relay protection.The papre analyzes the stauration process of the current transformer and gets main factors that effects transient characteristic of the current transformer.Then the simulation software MATLAB of the electric system is used to build the current transformer model.The saturation charcteristic of the current transformer is analyzed and simulated.The results are uniform with theoretical analysis..

关 键 词：电流互感器 铁芯饱和 暂态特性 MATLAB 

分 类 号：TM452[电气工程—电器]