【摘要】 本文在矩阵变换器和交流斩波逆变器的基础上提出了三种新颖的交直交型矩阵变换器,称之为交流斩波式矩阵变换器(ACChopper Matrix Converter,ACCMC)。阐述了这类矩阵变换器的电路拓扑结构、工作原理,然后通过仿真研究和样机实验证明了该电路的可行性和有效性。该电路的电压传输比可达1.0,甚至更高,这就突破了传统的矩阵变换器电压传输比最大为0.866的限制,且输出电压波形的失真度很小,因此具有很好的研究意义和应用价值。更多还原

【Abstract】 Three types of new AC-DC-AC matrix converter topology based on matrix converter and AC chopper inverter are proposed,which are referred as AC chopper matrix converters. First,the basic configuration of these new topologies and the fundamental principle are introduced. Then,the validity and feasibility of the new topologies are tested by digital simulation and prototype experiments. The results indicate that the output voltage transfer ratio can be larger than 1.0,the output voltage waveform is very close to standard sine wave,and the harmonic contents increase slightly,overcoming the drawbacks of conventional MCs that maximum voltage transfer ratio is only 0.866. This study may provide inspiration for further engineering applications.更多还原