Voltage control device for hybrid power locomotive

A technology of voltage control and hybrid power, applied in locomotives, railway transportation, climate sustainability, etc., can solve the problems of battery charging and discharging current fluctuations, system instability, etc., and achieve the effect of stable working state

Active Publication Date: 2015-01-07
CRRC ZIYANG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the output voltage of the above-mentioned diesel generator is difficult to quickly follow the change of the output voltage of the storage battery, causing the charging and discharging current of the storage battery to fluctuate greatly, resulting in system instability, and to provide a voltage control system for hybrid locomotives. device

Method used

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  • Voltage control device for hybrid power locomotive

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Embodiment Construction

[0014] The present invention will be further described below in combination with specific embodiments and accompanying drawings.

[0015] Such as figure 1 The schematic diagram of the voltage control device for hybrid locomotive is shown, a voltage control device for hybrid locomotive, including locomotive microcomputer, battery management system, battery pack, diesel generator set, rectifier circuit, main converter, The locomotive microcomputer is connected to the main converter, the locomotive microcomputer is connected to the battery pack through the battery management system, the diesel generator set is connected to the main converter through a rectifier circuit, the main converter is connected to an external traction motor, and the locomotive The microcomputer is connected to the rectification circuit. The diesel generator set is used to generate three-phase alternating current, and the alternating current is converted into direct current by a rectifier circuit. The loc...

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Abstract

The invention relates to the field of locomotives and discloses a voltage control device for a hybrid power locomotive. The voltage control device comprises a locomotive microcomputer, a storage battery management system, a storage battery pack, a diesel generator set, a rectifying circuit and a main current transformer, wherein the locomotive microcomputer is connected with the main current transformer; the locomotive microcomputer is connected with the storage battery pack through the storage battery management system; the diesel generator set is connected with the main current transformer through the rectifying circuit; the main current transformer is connected with an external traction motor; and the locomotive microcomputer is connected with the rectifying circuit. As the rectifying circuit can accurately control the output power of a diesel generator and the input power of the main current transformer can be controlled completely, charging power and discharging power of a storage battery are in a controlled state; therefore, the system is in a stable working state.

Description

technical field [0001] The invention relates to a locomotive, in particular to a voltage control device for a hybrid electric locomotive. Background technique [0002] As a new energy locomotive, the oil-electric hybrid shunting locomotive in the prior art has the following two characteristics in its power supply part: [0003] 1. The diesel generator system and power storage battery are adopted to provide traction power for the locomotive. For general shunting locomotives, the average load is low, and the traction battery can store a large amount of electric energy and provide high power continuously, so the diesel generator system can choose low power. [0004] 2. When the locomotive is working under the hybrid power condition, the voltage of the battery pack will change with the charging and discharging power of the battery. Generally, the locomotive microcomputer is used to adjust the excitation current of the diesel generator system to adjust the output voltage of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61C17/00B61C7/04
CPCY02T30/16Y02T30/00
Inventor 刘顺国彭长福任聪孟玉发赵孝俊
Owner CRRC ZIYANG CO LTD
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