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发明授权
CN105186890B 交流传动车辆无变压器控制直流输出的方法 有权

交流传动车辆无变压器控制直流输出的方法
摘要：
本发明公开了交流传动车辆无变压器拓扑结构和控制直流输出的方法，拓扑结构包括相互级联的二个以上的转换单元；所述的转换单元包括控制器、脉冲整流器、电阻和电感。控制直流输出的方法包括通过电网经电阻和电感向脉冲整流器输入交流电，通过脉冲整流器输出直流电，控制器根据交流电压信号、交流电流信号、直流电压信号、直流电流信号和直流电压给定值控制脉冲整流器，让脉冲整流器具有稳定的直流输出。本发明省去了变压器，直流输出稳定。
摘要（英）：

The invention discloses a transformerless topological structure of an AC drive vehicle and a method for controlling DC output. The topological structure comprises more than two conversion units cascaded with each other, wherein each conversion unit comprises a controller, a pulse rectifier, a resistor and an inductor. The method for controlling the DC output comprises the following steps of: inputting AC to the pulse rectifier by a power grid through the resistor and the inductor, outputting DC through the pulse rectifier, and controlling the pulse rectifier by the controller according to an AC voltage signal, an AC current signal, a DC voltage signal, a DC current signal and a DC voltage given value so that the pulse rectifier has stable DC output. In the transformerless topological structure, the transformer is eliminated, and the DC output is stable.

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