摘要
为了提高开关磁阻电机(SRM)调速系统的适用范围,在直接转矩控制SRM的条件下,提出了一种基于简化磁链法的转子位置辨识方法。选取一条特定位置的电机磁链特性曲线,通过神经网络对磁链特性曲线进行拟合,与检测的实时磁链比较,输出比较脉冲信号,编译脉冲信号得到转子位置角。在MATLAB/Simulink环境下搭建了SRM转子位置辨识控制模型,对简化磁链法转子位置辨识进行了仿真。结果表明了简化磁链法能够简化控制系统,提高系统的可靠性。
In order to improved the application range of the switched reluctance motor drive system,a simplified flux method to identify the rotor position under the condition of direct torque control of switched reluctance motor was presented. By using neural network to fit the nonlinear flux linkage curve,compared with the real time flux linkage.The position signal was estimated by means of the real-time flux linkage compared with the special position flux linkage. In the MATLAB / Simulink environment,the model of the position sensorless switched reluctance motor was built. The simulation results showed that the simplified flux method could simplify the control system and confirm the validity of the presented method.
出处
《电机与控制应用》
北大核心
2016年第4期62-65,76,共5页
Electric machines & control application
