Mobile direct-current power supply system for railway vehicle

A technology for DC power supply systems and rail vehicles, which is applied in the field of mobile DC power supply systems for rail vehicles, and can solve problems such as insufficient stability, circuit damage, and insufficient stability, and achieve reduced input ripple, reduced loss, and reduced internal resistance Effect

Pending Publication Date: 2020-01-17
天津斌德鑫力电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is still a big gap between this and the power supply demand (200kW) in the rail transit field, and most mobile DC power supplies are not stable enough when applied in the rail transit field. Relative displacement can easily lead to poor contact or even circuit damage, and the use is not stable enough

Method used

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  • Mobile direct-current power supply system for railway vehicle
  • Mobile direct-current power supply system for railway vehicle
  • Mobile direct-current power supply system for railway vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Such as Figure 1-3 As shown, a mobile DC power supply system for rail vehicles includes a cabinet, an AC power supply input terminal, a DC output terminal, a voltage sampling unit, a current sampling unit, and a grounding wire. A soft start unit, a rectification filter unit, and a grounding wire are installed in the cabinet. A display cabinet and four power supply cabinets. The display cabinet is equipped with a liquid crystal display and a human-machine interface. A control unit is installed inside the display cabinet. The control unit is connected to the liquid crystal display, the human-machine interface, and the ground The wires are connected separately, and pulleys are installed at the bottom of the cabinet;

[0030] The input end of the soft start unit is connected to the input end of the AC power supply, and the output end of the soft start unit is connected to the rectification and filtering unit. The power supply box includes a full-bridge power conversion uni...

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PUM

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Abstract

The invention provides a mobile direct-current power supply system for a railway vehicle. The system comprises a display screen box body, power supply box bodies, a control unit, a soft start unit, arectification filtering unit, a cabinet body, an AC power supply input end, a DC output end, a voltage sampling unit, a current sampling unit and a grounding wire. The control unit, the soft start unit, the rectification filtering unit, the display screen box body and the four power supply box bodies are installed in the cabinet body. A liquid crystal display screen and a human-computer interfaceare arranged on the display screen box body, the control unit is arranged in the display screen box body, the control unit is respectively connected with the liquid crystal display screen, the human-computer interface and a grounding wire, and pulleys are arranged at the bottom of the cabinet body. According to the mobile direct-current power supply system, the use reliability can be guaranteed while the power supply requirement in the field of railway vehicles is met, and meanwhile mobility and use stability are both considered.

Description

technical field [0001] The invention belongs to the field of electric power technology, and in particular relates to a mobile DC power supply system for rail vehicles. Background technique [0002] The current mobile DC power supply has low reliability and small capacity, which cannot meet the high-power power supply demand in the rail transit field. For example, patent CN201020506206.9 discloses a 85W movable DC power supply. The power supply includes a solar panel, a power generation device and an output interface. The BUCK circuit connected to the solar panel is connected to the charging control circuit. The single-chip microcomputer is connected, and several output interfaces are connected to the input and output circuits connected to the BUCK circuit and the single-chip microcomputer respectively. There is still a big gap between this and the power supply demand (200kW) in the rail transit field, and most mobile DC power supplies are not stable enough when applied in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/36H02M1/32H02M1/44H02M1/14H02M3/335H05K7/20H01F27/28H01L23/367
CPCH01F27/2823H01L23/3672H02M1/14H02M1/32H02M1/36H02M1/44H02M3/33523H05K7/20909H02M1/0048H02M1/0058H02M1/325
Inventor 王彦鹏张斌
Owner 天津斌德鑫力电子科技有限公司
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