Circuit Topologies and General PWM(Pulse Width Modulation) Theory of Matrix Converters

交流到交流功率转换器用于变速交流电机驱动系统。矩阵变换器是为下一代高效率、高功率密度的交-交功率变换器而发展起来的。然而，用于控制矩阵变换器的输出电压和输入电流的通用PWM控制方案尚未建立。在这项研究中，一般的PWM控制方案的三个电路配置的矩阵变换器已被推导出使用减少控制的换向次数和输出电压谐波的评估方法。给出了实验中的控制特性。

An ac to ac power converter is used for the variable-speed ac-motor drive system. Matrix converters are developed for ac to ac power converters with high efficiency and high power density in the next generation. However, the general PWM control scheme for controlling the output voltage and the input current of the matrix converter has not established. In this study, the general PWM control scheme for three circuit configurations of the matrix converters has been derived using the reduction control of the number of commutations and the evaluation method of the output voltage harmonics. The control characteristics in experiments are shown.