矩阵变换器驱动的永磁同步电动机电流及速度控制技术

针对矩阵变换器驱动的永磁同步电动机电流和速度控制问题,提出一种有限集模型预测控制算法.不同于传统的矩阵变换器控制方法,该算法通过使用输入滤波器成本函数和电机速度成本函数,实现直接控制瞬态和稳态条件下的输入电流,形成高动态响应,从而避免在电压瞬变期间输入滤波器电流产生不必要的振动.此外,还提出一种新的输入滤波器观测器,可以减少传感器的数量,从而增加系统的可靠性并降低成本.通过仿真及实验,对提出算法的有效性进行验证,结果表明:该算法具有动态优势.

Current and Speed Control Technology of Permanent Magnet Synchronous Motor Driven by Matrix Converter

In this work, a finite set of model predictive control algorithm was proposed to solve the current and speed control problems of permanent magnet synchronous motor driven by the matrix converter,. Different from conventional matrix converter and control methods, the algorithm applied input filter cost function and the motor speed cost function and carried out the direct control under transient and steady-state conditions of the input current. In doing so, a high dynamic response was achieved and the voltage transients in variable filter input current induced by unnecessary vibration was avoided. In addition, a new input filter observer was developed to reduce the number of sensors, so as to increase the reliability of the system and reduce the cost. Finally, the effectiveness of the proposed algorithm was verified by simulation and experiments.