The present invention relates to an auxiliary power supply device for a railway vehicle. According to an embodiment of the present invention, provided is an auxiliary power supply device for a railway vehicle, including a resonance type power converter that receives an overhead line power source and converts the overhead line power source into an AC power source by using a plurality of switching elements and a capacitor, a high frequency transformer for converting the overhead line power source into the AC power source together with the resonance type power converter using a parasitic inductance element, and a rectifier for rectifying the AC power source outputted from the high frequency transformer and outputting the rectified AC power source as a DC power source. Accordingly, the present invention can reduce the size and weight of the auxiliary power supply device.
본 발명은 철도차량용 보조전원장치에 관한 것이다. 본 발명의 일 실시예에 따르면, 가선 전원을 공급받아 복수의 스위칭 소자 및 캐패시터를 이용하여 교류 전원으로 변환하는 공진형 전력변환기, 고주파 스위칭을 수행하며, 기생 인덕턴스 성분을 이용하여 상기 공진형 전력변환기와 함께 상기 가선 전원을 교류 전원으로 변환하는 고주파 변압기, 및 상기 고주파 변압기에서 출력된 교류 전원을 정류하여 직류 전원으로 출력하는 정류기를 포함하는 철도차량용 보조전원장치를 제공한다.
AUXILIARY POWER SUPPLY DEVICE FOR RAILROAD TRAIN
철도차량용 보조전원장치
2018-10-29
Patent
Electronic Resource
Korean
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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