【摘要】 以30kW异步电动机为研究对象,应用Matlab软件对异步电动机的过载、堵转、断相等典型故障进行仿真分析,分析了电动机发生几种典型故障时的电流、转速和转矩的变化特征,总结出了电动机定子电流的故障特征,为以电流为原则的电动机综合保护器设计提供理论依据.更多还原

【Abstract】 This paper takes 30 kw asynchronous machine as a model,simulates the voltage,current,rotating speed and torque changes under the typical failure conditions based on Matlab. The features of motor stator under failure conditions are summarized. It can provide the theoretical basis for the design of integrative motor protector based on current principle.更多还原