Power converter for railway rolling stock

摘要

The present power converter enables to improve the environment surrounding gate control circuits, improve the maintenance performance and reduce the weight of the power converter. A power converter unit 6 including semiconductor devices constituting a three-phase inverter 3 for a power converter circuit, a plurality of gate control circuits 7 for supplying gate signals to the semiconductor devices, and a filter capacitor connected between DC terminals P and N of the power converter circuit are stored in a common box 20, wherein the filter capacitor constitutes an integrated structure with the semiconductor cooling unit, and the plurality of gate control circuits 7 are arranged on the lower side of the filter capacitor.