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A fuel cell locomotive and its power system

A fuel cell, locomotive power technology, applied in electric traction, electric vehicles, vehicle energy storage, etc., can solve the problems of complex circuit structure of power system, and achieve the effect of promoting application, fast charging, and simplifying circuit structure

Active Publication Date: 2017-06-30
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 fuel cell locomotive and its power system to solve the problem that the circuit structure of the power system is relatively complicated in the prior art

Method used

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  • A fuel cell locomotive and its power system

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] Embodiment of fuel cell locomotive power system

[0018] like figure 1 The fuel cell locomotive power system shown includes a fuel cell power generation system. The fuel cell power generation system is connected to a DC bus through a main DC / DC converter, and the DC bus is connected to a drive motor through a motor controller. The main DC / DC converter ensures that the output power of the fuel cell power generation system is stable and is always in the high-efficiency working range.

[0019] The supercapacitor system and the power battery system are directly connected to the DC bus, and the power battery system is also connected to the input end of the main DC / DC converter.

[0020] A diode is connected between the supercapacitor system of the DC bus and the contact of the power battery system to prevent the braking energy from feeding back to the pow...

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PUM

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Abstract

The present invention relates to a fuel cell locomotive and a power system thereof, comprising a fuel cell generator which is in connection with a direct current bus via a main DC / DC converter, the direct current bus being in connection with a driving motor via a motor controller, the direct current bus being in direct connection with a super capacitor and a power battery system, the power battery system being connected to an input end of the main DC / DC converter. The fuel cell locomotive and power system thereof of the present invention simplifies a circuit structure of the power system of prior art, reduces cost, and facilitates promotion and application of fuel cell locomotives and power systems thereof.

Description

technical field [0001] The invention relates to a fuel cell locomotive and its power system. Background technique [0002] At present, in the automotive industry, fuel vehicles still account for the absolute majority. Due to the extensive application of fuel vehicles, serious environmental pollution has been caused, leading to global warming, which has caused a crisis of human survival; at the same time, the extensive application of fuel vehicles has led to the rapid reduction and eventual depletion of the earth's oil resources. Therefore, the development of new energy vehicles is imperative. Fuel cell vehicles are the ultimate goal of new energy vehicles. This type of vehicle uses hydrogen energy as fuel, and directly converts the chemical energy of hydrogen / oxygen reaction into electrical energy through a fuel cell device. Fuel cell vehicles have outstanding advantages such as high energy conversion rate, good fuel economy, low noise, zero pollutant emissions, and a wide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/18B60L11/00
CPCY02T10/70Y02T10/72
Inventor 李玉鹏秦学李进李飞强王宗田
Owner ZHENGZHOU YUTONG BUS CO LTD