Power supply for rail vehicles
By designing a railway vehicle power supply equipment that includes transformers, inverters and resonant circuits, the problem that existing equipment cannot be powered by storage batteries in emergency situations is solved, and the functions of bidirectional flow of electricity and emergency driving are realized.
JP7651072B2Active Publication Date: 2025-03-25MITSUBISHI ELECTRIC CORP
3 Cites 0 Cited by
Patent Information
- Application Number
- JP2024538541
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-08-01
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2042-08-01
AI Technical Summary
Technical Problem
Existing railway vehicle power supplies cannot be used to drive in emergency situations using storage batteries.
Method used
A power supply device is designed including a transformer installed on a railway vehicle, a main charger circuit, a first and second inverters, a resonance circuit and a control unit. The device is powered from the suspension line during normal driving, powered from the storage battery in an emergency, and flows power from circuit components such as transformers and inverters.
Benefits of technology
It realizes emergency driving using storage batteries in emergency situations to ensure the safety and passage of railway vehicles.
✦ Generated by Eureka AI based on patent content.
Abstract
This power supply device (5) for a railroad vehicle is mounted onto a railroad vehicle (110) comprising a storage battery (9) and comprises 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 direct current load (6). The chopper circuit (21) performs a step-down operation during a sound travel and performs a step-up operation during an emergency travel. The first inverter (24) converts a direct current voltage applied by the chopper circuit (21) into an alternating current voltage, and converts an alternating current voltage applied from the primary side of the transformer (28) into a direct current voltage. The second inverter (26) converts an alternating current voltage applied from the secondary side of the transformer (28) into a direct current voltage, and converts a direct current voltage applied by the storage battery (9) into an alternating current voltage.
Need to check novelty before this filing date? Find Prior Art