【摘要】 针对谐振型感应加热电源前端输入电流谐波含量较高的现状,提出采用三相-单相矩阵变换器直接驱动串联谐振电路的新拓扑。基于变换器的基本调制律,提出改善变换器输入电流谐波状况的电流分配律,并给出3种具体的调制策略。仿真及试验结果验证了新拓扑及其调制策略的正确性和可行性。更多还原

【Abstract】 New topology of three-phase to single-phase matrix converter to drive serial-connected RLC circuit was proposed for the purpose of cancelling the high content of harmonics in the input-current of resonant induction heating power-supply used largely at present.On the basis of the fundamental modulation law for the converter,a method to depress the harmon-ics in input-current of converter was introduced.Three practical modulation strategies followed.The experimental results verify the feasibily and validity of the proposed converter and the corresponding stragies.更多还原