【作者】 粟梅； 余岳； 孙尧； 桂卫华；

【Author】 Su Mei, Yu Yue, Sun Yao Gui WeiHua

【机构】 中南大学信息科学与工程学院；

【摘要】 传统矩阵变换器具有结构简单、功率密度较高等优点。但是,换流问题和复杂的PWM调制方法限制了其在工业领域的应用。双级矩阵变换器保持了传统矩阵变换器所有优点的同时,使PWM调制算法更加简单。整流端的开关实现了零电流换流,没有传统矩阵变换器中的换流问题。针对双级矩阵变换器的控制要求,提出了一种基于DSP+CPLD的双级矩阵变换器的实现方法,开发了一套双级矩阵变换器装置。更多还原

【Abstract】 Conventional Matrix Converter is very simple in structure and has powerful controllability. However, commutation problem and complicated PWM method keep it from being utilized in industry. Two-stage Matrix Converter has the same performance as a conventional matrix converter. The PWM method utilized at conventional inverter can be used, which can largely simplify its control complexity. All the switches at line side turn on and turn off at zero current; the converter does not have any commutation problems as required by the conventional matrix converter. Based on DSP and CPLD, a control algorithm is implemented to meet the control requirements of Two-stage matrix converter. An experimental prototype is developed to verify the proposed control algorithm.更多还原