基于DSP和CPLD的双级矩阵变换器研究

给出了双级矩阵变换器(Two-stage Matrix Converter,简称TSMC)的主电路结构,分析了TSMC的换流策略和双空间矢量调制(Space Vector Modulation,简称SVM)策略。提出了以数字信号处理器为系统的控制核心,通过复杂可编程逻辑器件实现换流和驱动信号输出的软件设计方案。实验结果验证了设计的可行性,证明了TSMC和直接式矩阵变换器(Matrix Converter,简称MC)一样具有优良的输入输出特性。

Research of Two-stage Matrix Converter Based on DSP and CPLD

The main circuit structure of two-stage matrix converter(TSMC) is given,then the commutation strategy and the double space vector modulation(SVM) strategy of TSMC are analyzed.The software design of making the digital signal processor(DSP) as the control core of the system,using the complex programmable logic device(CPLD) to realize the commutation and drive signals output.The experimental results verify the feasibility of the design,it also prove that TSMC has the same excellent input and output characteristics with the direct matrix converter(MC).