永磁同步电机转子位置的级联预测控制

Cascade Predictive Control for Rotor Position of Permanent Magnet Synchronous Machines

预测控制是一种使被控对象获得良好动态性能的控制方法。该文通过使用时间乘绝对误差积分准则等性能指标,分析对比基于电流模型预测和转速预测的永磁同步电机(PMSM)转子位置控制系统的性能,提出一种两级级联结构的预测控制策略,兼顾永磁同步电机位置伺服控制系统稳定性和快速性的要求。仿真和实验结果证明了理论分析的正确性和级联预测控制在伺服刚度方面的优势。

Predictive control is a way to obtain good dynamic performance for the control objectives.By analyzing and comparing the properties of the current model predictive control and the speed predictive control systems by parameters like the integral of time-weighted absolute value of the error,a cascade predictive control of two-stage construction which give consideration to stability and rapidity of rotor position servo control system of permanent magnet synchronous motor(PMSM)was proposed.The results of simulation and experiment verify the correctness of the theoretical analysis and the servo stiffness advantage of the cascade predictive control.