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发明公开
CN109905017A 辅助变流电路、辅助变流器和辅助变流柜 无效 - 驳回

辅助变流电路、辅助变流器和辅助变流柜
摘要：
本发明提供一种辅助变流电路、辅助变流器和辅助变流柜，包括：交流电源、整流器、逆变器、滤波器，滤波器包括：三相电抗器和三相电容器；整流器与交流电源连接，整流器用于将交流电源输出的单相交流电压转化为直流电压；逆变器与整流器连接，逆变器用于将整流器输出的直流电压逆变为三相交流电压；三相电抗器分别与逆变器和三相电容器连接，三相电容器用于与输出电压检测装置连接；滤波器用于滤去逆变器输出的三相交流电压中的高频谐波。本发明提供的辅助变流电路在作为辅助变流器的组成部分时，降低了辅助变流器的损耗，提高了效率，使得辅助变流器轻量化。
摘要（英）：

The invention provides an auxiliary convertor circuit, an auxiliary convertor and an auxiliary convertor cabinet. The auxiliary convertor circuit comprises an alternating current (AC) power supply, arectifier, an inverter and a filter, wherein the filter comprises a three-phase reactor and a three-phase capacitor; the rectifier is connected to the AC power supply for converting the unidirectionalAC voltage output from the AC power supply into DC voltage; the inverter is connected to the rectifier for inverting the DC voltage output from the rectifier into three-phase AC voltage; the three-phase reactor is respectively connected to the inverter and the three-phase capacitor for connecting to an output voltage detection device; and the filter is used for filtering a high-frequency harmonicwave in the three-phase AC voltage output from the inverter. The auxiliary convertor circuit provided by the invention, when used as a part of the auxiliary convertor, reduces the loss of the auxiliary convertor, improves the efficiency and makes the auxiliary convertor light-weight.

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