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15kW high-frequency isolated DC/DC switching DC 110V control power supply for rail vehicles
Railway/subway 110V control power supply is efficient and direct-changing, green and energy-saving.
Type
Power supply device
Tags
Clean transportation
Railway transportation management
Road engineering other disciplines
Other disciplines in radio physics
High-frequency isolation frequency converter
Applicable industry
Water conservancy, environment and public facilities management
Applications
Rail transit
Key innovations
This achievement has developed a 15kW high-frequency isolated DC/DC converter to provide efficient 110V control power supply for railway locomotives. Its design is universal and can be applied to urban rail by upgrading the device.
Potential economic benefits
Improve power conversion efficiency and significantly reduce energy consumption and operating costs of railway and subway vehicles.
Potential climate benefits
The efficient high-frequency isolated DC/DC power supply improves the electric energy conversion efficiency of railway rolling stock auxiliary power systems and reduces energy loss. This directly reduces the total power consumption required to operate the vehicle. Since electricity sources often include fossil fuel power generation, lower electricity consumption means reduced carbon emissions on the power generation side.
Solution supplier
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Tongji University
Tongji University
Tongji University: The national "double first-class" construction university uses advantageous disciplines such as civil engineering, architecture, transportation, and environment to cultivate innovative talents to serve national construction and sustainable urban development.
Shanghai，China
Solution details

At present, the auxiliary power consumption of railway locomotives and rolling stock adopts the advanced DC 600V centralized power supply method and then decentralized current conversion power supply method by passenger cars. Both locomotives or passenger cars require a control power supply converted from DC 600V to DC 110V. This kind of DC to DC conversion is realized by using a high-frequency isolated frequency converter scheme. This achievement has developed a 15kw high-frequency isolated DC to DC conversion 110V control power supply for locomotives and trains. As long as the blocking voltage level of the IGBT device in the plan is increased, an appropriate conversion plan can be developed for high-frequency isolated DC/DC 110V control power supply for urban subway and light rail vehicles.


Last updated
11:34:09, Nov 04, 2025
Information contributed by
Green Technology Bank

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