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A solar power supply control circuit for rail vehicles

A technology of solar power supply and solar controller, applied in battery circuit devices, circuit devices, vehicle components, etc., can solve problems such as high cost, and achieve the effect of saving operating costs and reducing demand

Active Publication Date: 2018-12-28
CRRC NANJING PUZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, to pass this scheme, an additional Green Power charging device needs to be arranged, which is very costly

Method used

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  • A solar power supply control circuit for rail vehicles

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Embodiment Construction

[0013] Embodiments of the present invention will be explained below in conjunction with the accompanying drawings.

[0014] In the existing tram, pantographs, lightning arresters, fuse boxes, air conditioning units, antennas and other equipment are installed on the top of the vehicle. According to the measurement, it can be known that the area for installing solar panels is about 8m 2 (Length 4 meters, width 2 meters). The solar modules use 3 pieces of single-chip monocrystalline silicon solar silicon with dimensions of 1950mm*990mm. The rated output power of a single piece reaches 325W. The entire roof uses 3 pieces of solar modules connected in parallel to the MPPT control unit. Powers normal lighting, regardless of losses. The rated output power of the entire roof reaches 975W.

[0015] In light rail vehicles, according to the output characteristics, the load mainly includes: AC380V load, AC72V load, AC220V load, and DC24V load. Considering the maximization of energy uti...

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Abstract

A solar power supply control circuit for a rail vehicle includes a solar controller, a contactor and a start button. The output end of the solar controller is connected to a DC load via a diode, the battery is connected to the charger of the vehicle inverter, a start-up circuit is arranged between the negative electrode of the battery and the positive electrode output terminal of the charger, a contactor and a start button are connected in series in the start circuit, the positive output end of the charger is connected with a DC load through a diode, a control loop is arranged between the charger and the solar controller, the contactor is provided with a control normally open contact and a power supply normally open contact, the control normally open contact is connected in series with thecontrol loop, and the power supply normally open contact is connected in series with the charger and the DC load. The circuit of the invention realizes the logical control of grid-connected power supply of the charger and the solar energy. The invention not only can reduce the demand for the power supply overhead contact system, but also can save the operation cost. At the same time, it can alsoactively respond to the national energy conservation and emission reduction policies, and effectively promote the development of renewable energy in China.

Description

technical field [0001] The invention relates to a logic control circuit for solar energy power supply of urban rail vehicles, and belongs to the field of auxiliary power supply systems for urban rail vehicles. Background technique [0002] In the existing trams, the vehicles are basically operated outdoors, and the operation time of the vehicles is relatively long. The temperature of the roof of the vehicle in summer can reach more than 50°C. The roof area of ​​the tram is relatively large, but the current domestic tram itself does not have a power supply system for converting solar energy into electrical energy. [0003] At present, Australia's Byron Bay train uses a solar-powered device, which converts solar energy into electrical energy for vehicle traction through solar panels installed on the roof. In the case of insufficient solar power supply, the vehicle can be charged through Green Power. The traction required for vehicle traction is very large, the traction powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/35B60R16/03
CPCH02J7/35B60R16/03
Inventor 施晓芳赵虹王峥鲍伟兵孙建张文文陈小伟
Owner CRRC NANJING PUZHEN CO LTD
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