A hybrid power source system for railway construction machinery

A power source system and railway engineering technology, applied in electric vehicles, AC induction motor traction, capacitor traction, etc., can solve the problems of complex maintenance of internal combustion hydraulic power mode, hydraulic oil leakage, environmental pollution, etc., to improve the operation Efficiency, reduced workload, and the effect of shortened changeover time

Active Publication Date: 2021-04-02
ZHUZHOU TIMES ELECTRONICS TECH CO LTD +1
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  • 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 system for railway engineering machinery to solve the technical problems of the existing railway engineering machinery internal combustion hydraulic power mode maintenance complexity, the possibility of hydraulic oil leakage, and serious environmental pollution

Method used

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  • A hybrid power source system for railway construction machinery
  • A hybrid power source system for railway construction machinery
  • A hybrid power source system for railway construction machinery

Examples

Experimental program
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Effect test

Embodiment 1

[0036] as attached figure 1As shown, a specific embodiment of a railway engineering machinery hybrid power source system includes: a hybrid power source 10, and a converter 20 connected to the hybrid power source 10, and the hybrid power source 10 is used for the whole vehicle through the converter 20 Electrical equipment (including traction, brake air compressor, hydraulic pump voltage, traction motor 30, etc.) power supply. The hybrid power source 10 further includes a main power source 100 and an auxiliary power source 200. The electric 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 the electric energy required by the electrical equipment of the vehicle. In this embodiment, the railway engineering machinery 1 is equipped with a catenary power source and an auxiliary power source (such as a supercapacitor 15 or a storage battery pack 17) 100. After electric energy conversion and c...

Embodiment 2

[0039] as attached figure 2 As shown, on the basis of Embodiment 1, the auxiliary power source 200 is further a supercapacitor power source. When the electrical connection between the railway engineering machinery 1 and the catenary 11 is disconnected, or the catenary 11 cannot continue to supply power, the supercapacitor 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 supercapacitor power source supply power to the electrical equipment of the vehicle at the same time during the switching process. The main circuit of catenary power plus supercapacitor hybrid power source includes two modes of catenary power supply and supercapacitor power supply. It takes power from catenary 11 or supercapacitor 15, and supplies power to traction motor 30 after a series of transformations. Among them, the supercapacitor 15 has various advantages such as small si...

Embodiment 3

[0045] 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 engineering machinery 1 and the catenary 11 is disconnected, or the catenary 11 cannot continuously supply power, the battery pack is used The power source supplies power to the electrical equipment of the whole vehicle, and the storage battery pack 17 can adopt 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 supply power to the electric equipment of the whole vehicle at the same time 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. Amo...

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Abstract

The invention discloses a railway engineering machine hybrid power source system which comprises a hybrid power source and a converter connected with the hybrid power source. The hybrid power source comprises a main power source and an auxiliary power source, and electric energy from the main power source or the auxiliary power source is converted through the converter and treated to be electric energy needed by a whole vehicle electricity consumption device. When the system is electrically connected and communicated with an overhead line system and the overhead line system continues to be powered, the whole vehicle electricity consumption device is powered by the overhead line system power source; when the system is electrically disconnected with the overhead line system or the overhead line system cannot be continuously powered, the whole vehicle electricity consumption device is powered by the auxiliary power source; when the two power sources need to be switched, the whole vehicleelectricity consumption device is powered by both the main power source and the auxiliary power source in the switching process, and the replaced power source exits from power supply after switching is ended. The technical problems that according to an existing railway engineering machine internal combustion hydraulic power mode, maintenance is complex, the hydraulic oil leakage possibility exists, and environment pollution is serious can be solved.

Description

technical field [0001] The invention relates to the technical field of railway engineering machinery, in particular to a hybrid power source system applied to railway engineering machinery. Background technique [0002] At present, my country's railway construction machinery is basically powered by internal combustion engines, 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 saving and emission reduction requirements, the requirements of high power and high speed and the development of clean power sources, this method shows complex maintenance, serious environmental pollution and noise pollution, low efficiency and limited driving ability. and other limitations. As the electr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L1/00B60L9/28B60L50/40B60L50/60
CPCY02T10/70
Inventor 陈平松李懿刘洁王建宏肖小山杨格卓海军肖晓芳祝长春李玮斌王东星刘三帅
Owner ZHUZHOU TIMES ELECTRONICS TECH CO LTD
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