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Method for controlling hybrid power source of railway construction machinery

A technology of railway engineering and control methods, applied in the direction of motor vehicles, railway vehicles, locomotive propulsion methods, etc., can solve the problems of hydraulic oil leakage, complex maintenance of internal combustion hydraulic power mode, environmental pollution, etc., to reduce workload and improve operation. Efficiency, the effect of shortening the conversion time

Active Publication Date: 2020-12-04
ZHUZHOU TIMES ELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the purpose of the present invention is to provide a hybrid power source control method for railway construction machinery to solve the technical problems of the existing railway construction machinery, such as complicated maintenance, possible hydraulic oil leakage, and serious environmental pollution.

Method used

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  • Method for controlling hybrid power source of railway construction machinery
  • Method for controlling hybrid power source of railway construction machinery
  • Method for controlling hybrid power source of railway construction machinery

Examples

Experimental program
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Effect test

Embodiment 1

[0049] as attached figure 1 As shown, a specific embodiment of a railway construction machinery hybrid power source system on which the method of the present invention is based, the system includes: a hybrid power source 10, and a converter 20 connected to the hybrid power source 10, and the hybrid power source 10 passes through The converter 20 supplies power to the electrical equipment of the whole vehicle (including traction, brake air compressor, hydraulic pump voltage, traction motor 30, etc.). The hybrid power source 10 further includes a main power source 100 and an auxiliary power source 200. The electrical energy from the main power source 100 or the auxiliary power source 200 is converted and processed by the converter 20 and then converted into electrical energy required by the vehicle electrical equipment. In this embodiment, the railway construction machinery 1 is equipped with a catenary power source and an auxiliary power source (which can be in the form of a su...

Embodiment 2

[0052] as attached figure 2 As shown, on the basis of Embodiment 1, the auxiliary power source 200 is further a super capacitor power source. When the electrical connection between the railway construction machinery 1 and the catenary 11 is disconnected, or the catenary 11 cannot continue to supply power, the super capacitor is used. The power source supplies power to the electrical equipment of the vehicle. When it is necessary to switch between the two power sources, the catenary power source and the super capacitor power source simultaneously supply power to the vehicle electrical equipment during the switching process. The main circuit of the catenary power plus supercapacitor hybrid power source includes two modes of catenary power supply and supercapacitor power supply. Among them, the super capacitor 15 has the advantages of small size, light weight, super instantaneous charging and discharging capability, and high energy conversion efficiency, and is a green energy s...

Embodiment 3

[0058] as attached image 3 As shown, on the basis of Embodiment 1, the auxiliary power source 200 is further a battery pack power source. When the electrical connection between the railway construction machinery 1 and the catenary 11 is disconnected, or the catenary 11 cannot continue to supply power, the battery pack is used. The power source provides power for the electrical equipment of the whole vehicle, and the battery pack 17 can be a lithium battery pack. When it is necessary to switch between the two power sources, the catenary power source and the battery pack power source simultaneously supply power to the vehicle electrical equipment during the switching process. The main circuit of the catenary power plus battery hybrid power source includes two modes of catenary power supply and battery power supply. It takes power from the catenary 11 or the battery pack 17 and supplies power to the traction motor 30 after a series of transformations. Among them, the battery ha...

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Abstract

The invention discloses a control method for a hybrid power source for railway engineering machinery. The hybrid power source comprises a main power source and an auxiliary power source, the main power source is the catenary power source, the hybrid power source system preferably chooses the main power source to supply electricity, and electric energy from the main power source or the auxiliary power source is converted, processed through a converter and then supplies electricity to whole vehicle electrical equipment. When electrical connection of the railway engineering machinery and a catenary is connected and the catenary continuously supplies power, the catenary power source supplies electricity to the whole vehicle electrical equipment. When electrical connection of the railway engineering machinery and the catenary is disconnected or the catenary cannot continuously supply electricity, the auxiliary power source supplies electricity to the whole vehicle electrical equipment. Whenswitching between the two power sources is required, the main power source and auxiliary power source supply electricity to the whole vehicle electrical equipment simultaneously in the switching process, the replaced power source is out of electricity supply after switching is finished. The control method for the hybrid power source for the railway engineering machinery can solve the technical problems of complex maintenance, existence of hydraulic oil leakage and serious environmental pollution of an existing railway engineering machinery internal combustion hydraulic power mode.

Description

technical field [0001] The invention relates to the technical field of railway construction machinery, in particular to a hybrid power source control method applied to railway construction machinery. Background technique [0002] At present, my country's railway construction machinery is basically powered by an internal combustion engine, and the transmission mode is hydraulic transmission. Long-term practice has proved that the internal combustion hydraulic (hydraulic) transmission mode is stable and reliable, and can meet the traction requirements of railway construction machinery. However, with the increasingly stringent environmental protection standards, the improvement of energy conservation and emission reduction requirements, the development of high power and high speed requirements and the development of clean power sources, this method has shown complex maintenance, serious environmental pollution and noise pollution, low efficiency and limited driving capacity. et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L9/24B60L50/13B61C3/00B61C9/24
CPCB60L9/24B60L2200/26B61C3/00B61C9/24B60L50/13Y02T10/70
Inventor 刘洁陈平松王建宏卓海军杨格李玮斌肖晓芳肖小山祝长春王东星刘三帅
Owner ZHUZHOU TIMES ELECTRONICS TECH CO LTD
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