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A plc-based energy storage type tram constant current discharge system and device

A tram, constant current discharge technology, applied in battery circuit devices, circuit devices, electric vehicles, etc., can solve the problems of long discharge time, poor monitoring accuracy and reliability, and inability to meet safe discharge, and achieve fast discharge speed, Sensitive to rapid temperature changes, high safety and reliability

Active Publication Date: 2018-11-02
WUHAN ZHONGZHI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since modern trams need regular maintenance and repairs, a safe discharge device is needed. However, the existing discharge control system adopts relay control or constant resistance discharge, which has long discharge time, poor monitoring accuracy and reliability, and cannot meet modern storage requirements. Requirements for safe discharge of energy-efficient trams

Method used

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  • A plc-based energy storage type tram constant current discharge system and device
  • A plc-based energy storage type tram constant current discharge system and device

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Embodiment Construction

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0027] Such as figure 1 As shown, a PLC-based energy storage type tram constant current discharge system schematic diagram, including PLC control circuit, human-computer interaction display circuit, main circuit, temperature detection circuit, intermediate relays and a number of trams to be charged Contact rails for electrical contact.

[0028] Wherein, the contact rail is connected to the input end of the main circuit, the output end of the main circuit and the output end of the temperature detection circuit are respectively connected to the input end of the PLC control circuit, and the output end of the PLC control circuit They are respectively connected to the input end of the human-computer interaction display ...

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Abstract

The invention relates to an energy-storage type tramcar constant-current discharge system and a device based on a PLC (Programmable Logic Controller). The system comprises a PLC control circuit, a man-machine interactive display circuit, a main circuit, a temperature detection circuit, an intermediate relay and a plurality of contact rails, wherein the plurality of contact rails make electrical contact with a to-be-charged tramcar. According to the energy-storage type tramcar constant-current discharge system, the discharge voltage, current and discharge temperature can be monitored in real time, the resistance value of a discharge resistor can be automatically adjusted according to the monitored voltage and current, over-voltage, over-current and temperature protection can be realized, the problems in the prior art can be preferably solved, and the energy-storage type tramcar constant-current discharge system has the advantages of reasonable structure, accurate monitoring data, high discharge speed and high safety and reliability.

Description

technical field [0001] The invention relates to the technical field of charge and discharge, in particular to a PLC-based energy storage type tram constant-current discharge system and device. Background technique [0002] Under the opportunity of rapid development of urban rail transit in China, trams powered by energy storage power sources will be a new direction for future urban traffic development. New modern trams are between subways and buses. The third type of urban public transportation system is characterized by safety and high efficiency, energy saving and environmental protection, technological fashion, less investment and quick results. Since modern trams need regular maintenance and repairs, a safe discharge device is needed. However, the existing discharge control system adopts relay control or constant resistance discharge, which has long discharge time, poor monitoring accuracy and reliability, and cannot meet modern storage requirements. Requirements for sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61C17/00B60S5/00H02J7/00
CPCB60S5/00B61C17/00H02J7/00302H02J7/0063H02J2007/0067
Inventor 龚杰潘拥军李蕾何贤伟张光平袁胜王培金徐辉程杰
Owner WUHAN ZHONGZHI ELECTRIC
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