矩阵变换器电机系统控制策略研究

Study on the Control Strategy of Matrix Converter Motor System

矩阵变换器具有体积小、输入电流正弦、能量可双向流动以及没有使用寿命有限的大电容等特点,是实现电机与变频器一体化的理想选择。针对矩阵变换器进入工业应用存在的问题,提出了矩阵变换器电机系统概念,并结合矩阵变换器控制方式和电机调速方式,分析了电压矢量和直接转矩控制的影响,提出了改进的控制策略。

Matrix converter （MC） has the low volume, the sinusoidal input current, the bidirectional power flow, and the lack of the bulky and limited-lifetime electrolytic capacitors, so it＇s the ideal choice to realize integration of motor and frequency converter. In order to solve the problem of the industrial application of MC, the matrix converter motor system （MCMS） was proposed. According to the control mode of MC and the timing mode of motor, the affects of voltage vector and direct torque control were analyzed. The new ameliorated control strategies was proposed.