矩阵变流器的控制策略研究

Study of Modulation Strategy for Matrix Converter

矩阵变流器的拓扑结构采取一个整流级连接逆变级,并且中间直流环节没有体积庞大的储能环节,使该系统具有较高的功率密度。同时该系统还具有高功率因数和良好输入输出波形等优点,适用于交流调速系统以及其他的控制场合。本文对基于间接矩阵变流器的调制策略进行了深入的研究,采用空间矢量调制策略对整流级和逆变级进行调制,并仿真验正其控制策略的正确性。

The topology of indirect matrix converter adopts a structure of a rectifier stage connecting several inverter stages. And there is no bulky energy storage component in DC link, improving the power density of this system. In addition, the system has the advantage of high power factor and perfect input/output waveform It is suitable for the occasion of AC motor drive system The feasibility and validity of proposed modulation strategy are verified simulation.