A novel direct torque control (DTC) using rotating sector switching table is proposed for a matrix converter (MC) fed permanent magnet synchronous motor (PMSM) system in order to minimise common-mode voltage of the system, exploiting MC rotating vector's advantage of generating zero common-mode voltage. To overcome the difficulty that the angle between adjacent rotating vectors varies according to the phase of input voltage, the rotating vectors are classified into two groups, and each group of vectors have identical rotating direction and fixed angle between adjacent vectors. Rotating sectors of the vector plane are then established, and concise switching table is put forward for the MC-DTC. Experiments are carried out on a 1.6 kW prototype. The results demonstrate considerable common-mode voltage reduction and adequate dynamic performance of the proposed MC-DTC.

中文翻译：

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基于旋转扇区切换表的矩阵转换器馈电PMSM驱动器的直接转矩控制，以实现共模电压最小化

提出了一种利用旋转扇形切换表的新型直接转矩控制（DTC），用于矩阵变换器（MC）馈电永磁同步电动机（PMSM）系统，以最大程度地减小系统的共模电压，并利用MC旋转矢量产生的优势零共模电压。为了克服相邻旋转矢量之间的角度随输入电压的相位而变化的困难，将旋转矢量分为两组，每组矢量具有相同的旋转方向，相邻矢量之间的角度固定。然后建立向量平面的旋转扇区，并为MC-DTC提出简洁的切换表。实验是在1.6 kW的原型机上进行的。