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Simulation Study on the Matrix Converter Implemented by AC-AC Direct Control Scheme
Author(s): 
Pages: 48-53
Year: Issue:  3
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  矩阵式变换器交-交直接变换控制开关函数仿真双向开关四步换流;
Abstract: 从等效交-直-交变换的空间矢量调制方法出发,深入分析了矩阵式变换器的变换关系,导出了交-交直接变换控制规律和双空间矢量PWM调制技术,实现了交-交直接变换控制方式下矩阵式变换器的建模和运行分析.针对当前尚无双向开关器件的现状,仿真中采用了IGBT组合双向开关并应用半软换流控制实现开关的安全切换,非常贴近实际.仿真结果既展现了矩阵式变换器优良的输入、输出特性,验证交-交直接变换控制方法的正确性和可行性,更可将仿真中优化出的功率器件开关规律直接应用于矩阵式变换器的实际控制,并对IGBT器件的选择提供依据,为今后进一步的研究奠定了基础.
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