The drive system of asynchronous motors exhibits high nonlinearity,strong coupling,and multivariable characteristics during opera-tion,making it difficult to determine the rotor flux voltage and current parameters,resulting in poor control error and stability.Therefore,a method for electrical control of induction motors in electric furnaces is proposed that considers the vibration characteristics of components.By analyzing the radial magnetic pull force of the induction motor in the electric furnace,the vibration characteristics of the components of the in-duction motor in the electric furnace are understood.Based on the vibration characteristics of the components,the variation law of the rotor flux voltage and current is understood.The collected rotor flux voltage and current information is used as input signals to provide a PID control-ler for electrical control of the induction motor in the electric furnace.The experimental results show that the position control error of the pro-posed method is basically 0,and the voltage control curve is stable,indicating that the proposed method has high accuracy,strong stability,and practicality.
关键词
部件振动/电炉异步电机/电气控制/径向磁拉力/PID控制器
Key words
vibration of components/electric furnace asynchronous motor/electrical control/radial magnetic pull/PID controller
维普
万方数据