A power supply device (5) for a railway vehicle according to the present invention is mounted on a railway vehicle (110) provided with a battery (9). Comprising a chopper circuit (21) disposed on the primary side of a transformer (28), a first inverter (24) disposed between the chopper circuit (21) and the transformer (28), a resonance circuit (25) disposed between the first inverter (24) and the transformer (28), and a second inverter (26) disposed between the transformer (28) and a DC load (6). The chopper circuit (21) performs a step-down operation during normal travel, and performs a step-up operation during emergency travel. The first inverter (24) converts the DC voltage applied from the chopper circuit (21) into an AC voltage, and converts the AC voltage applied from the primary side of the transformer (28) into a DC voltage. The second inverter (26) converts an AC voltage applied from the secondary side of the transformer (28) into a DC voltage, and converts a DC voltage applied from the battery (9) into an AC voltage.
本发明的铁路车辆用的电源装置(5)搭载于具备蓄电池(9)的铁路车辆(110),包括配置在变压器(28)的初级侧的斩波电路(21)、配置在斩波电路(21)和变压器(28)之间的第1逆变器(24)、配置在第1逆变器(24)和变压器(28)之间的谐振电路(25)以及配置在变压器(28)和直流负载(6)之间的第2逆变器(26)。斩波电路(21)在正常行驶时进行降压动作,在紧急行驶时进行升压动作。第1逆变器(24)将从斩波电路(21)施加的直流电压转换成交流电压,将从变压器(28)的初级侧施加的交流电压转换成直流电压。第2逆变器(26)将从变压器(28)的次级侧施加的交流电压转换成直流电压,将从蓄电池(9)施加的直流电压转换成交流电压。
Power supply device for railway vehicle
铁路车辆用的电源装置
2025-03-07
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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