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A trolley bus power supply system and its power supply control method

A technology of trolleybus and power supply system, which is applied to electric vehicles, battery circuit devices, collectors, etc., and can solve problems such as the inability to control the effective operation of trams

Active Publication Date: 2018-11-06
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a trolleybus power supply system to solve the problem that the effective operation of the trolleybus cannot be controlled under the premise that the line network voltage is unstable

Method used

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  • A trolley bus power supply system and its power supply control method
  • A trolley bus power supply system and its power supply control method

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Embodiment Construction

[0028] The present invention will be further described in detail below in conjunction with the drawings.

[0029] Such as figure 1 The power supply system of the trolley bus shown includes: isolated DC / DC, super capacitor, two-way DC / DC and power battery, the input end of the isolated DC / DC is connected to the DC power supply network through the collector pole, and the output of the isolated DC / DC The terminal is connected to the power system of the trolleybus through the super capacitor, that is, the high-voltage electrical system. The input terminal of the bidirectional DC / DC is connected to the input terminal of the isolated DC / DC, and the output terminal of the bidirectional DC / DC is connected to the power battery. The power supply system can also be equipped with a controller separately, or use the whole car controller of the electric car. The controller is equipped with a software program, and the corresponding equipment is controlled to perform corresponding work through ...

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Abstract

The invention relates to a trolleybus power supply system and a power supply control method thereof. The system comprises an isolated DC / DC unit, a super capacitor, a bidirectional DC / DC unit and a power battery, the input end of the isolated DC / DC unit is connected with the DC power supply line network via a trolley pole, the isolated DC / DC unit is connected to a power system of a trolley bus via the super capacitor, and the power battery is connected to the input end of the isolated DC / DC unit via the bidirectional DC / DC unit. During power supply control, the practical voltage of the DC network is collected in real time, and power supply is controlled correspondingly according to the condition that the practical voltage satisfies. The voltage of the network is collected directly, power supply is controlled according to fluctuation, and operation of the trolleybus can be effectively controlled; and when the voltage of the network fluctuates widely, corresponding control and adjustment are implemented to prevent devices in the power supply system of the trolleybus from damage, safe operation of the trolleybus is ensured, and passengers and drivers are prevented from personal injury.

Description

Technical field [0001] The invention relates to a trolleybus power supply system and a power supply control method thereof. Background technique [0002] As a traditional vehicle, trolleybuses have once played a certain role in urban public transportation. However, due to their own shortcomings, along with technological development, trolleybuses are gradually being replaced by fuel-powered public transportation vehicles. [0003] As environmental pollution and energy problems continue to intensify, trolleybuses have returned to people’s vision. With their "zero emission" advantages, trolleybuses can meet the needs of air pollution control and conform to the development direction of new energy vehicles. Has received people's attention. [0004] The Chinese patent application with the application number 201410319626 discloses a trolleybus and its isolated power supply system. When the power supply system is working, it controls the isolated DC / DC and power battery correspondingly to m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/34
CPCH02J7/345
Inventor 杨泗鹏郑维张磊乔理想陈勇刚毕爽张广利韩光辉
Owner ZHENGZHOU YUTONG BUS CO LTD
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