Rail transit emergency power supply system and control method

An emergency power supply system and rail transit technology, applied in the field of rail transit emergency power supply system and control, can solve problems such as the inability to ensure the safe and stable running of EMUs, no solution for power configuration, and low energy utilization efficiency, so as to improve energy efficiency. Utilization efficiency, design cost and volume reduction, cost saving effect

Active Publication Date: 2018-11-16
SOUTHWEST JIAOTONG UNIV
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AI Technical Summary

Problems solved by technology

[0004] The existing emergency treatment methods for EMUs cannot guarantee the safe and stable running of EMUs; the energy utilization efficiency is low, resulting in a large amount of energy waste. There are also mentions of using fuel cells as emergency power sources, but there is no such thing as power configurations for fuel cell hybrid systems. give a solution

Method used

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  • Rail transit emergency power supply system and control method
  • Rail transit emergency power supply system and control method
  • Rail transit emergency power supply system and control method

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Embodiment Construction

[0055] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0056] In this example, see figure 1 and figure 2 As shown, the present invention proposes a control method of a rail transit emergency power supply system, comprising steps:

[0057] S100 calculates the operating condition of the operating line in the train emergency mode. According to the given line data combined with the vehicle parameters (vehicle weight, running acceleration, maximum power, maximum acceleration and resistance coefficient, etc.), the operating conditions of the operating line in the train emergency mode are calculated.

[0058] In the process of calculating the operating conditions, the current train running speed and acceleration are combined with the current road condition gradient for calculation:

[0059] Its basic calculation satisfies the dr...

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Abstract

The invention discloses a rail transit emergency power supply system and a control method, belonging to the technical field of rail transit power supply. The invention mainly comprises a matching design of a D-series high-speed train emergency power supply system and a hybrid power control method, wherein the emergency power supply system mainly comprises a fuel cell system, an energy storage device, an energy controller and the like. The matching design is mainly based on the running line of D-series high-speed trains under the emergency mode and the power and energy under vehicle parametersas constraint conditions, and the volume cost is used as the objective function for performing matching design to obtain a scheme of D-series high-speed train emergency power system. According to theinvention, the emergency power supply system of the D-series high-speed train can be effectively designed and controlled, the electric energy demand under the emergency situation is satisfied, and theenergy utilization efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a rail transit emergency power supply system and a control method. Background technique [0002] The train emergency system mainly considers how to safely and stably drive the train to the station without traction network, and at the same time provide a relatively comfortable riding environment for the people in the train. The existing rail transit emergency power supply usually adopts the vehicle source separation method, that is, the rail transit vehicle itself does not have an emergency power supply. Once an emergency occurs, a special emergency rescue vehicle will be used for rescue. This passive rescue method has shortcomings such as poor timeliness and low degree of humanization, and it is easy to cause dissatisfaction among trapped passengers. [0003] In recent years, China has begun to demonstrate the use of power batteries as vehicle emergency power su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/00H02J7/34
CPCH02J1/00H02J7/34H02J2300/30
Inventor 戴朝华李密刘正杰陈维荣郭爱
Owner SOUTHWEST JIAOTONG UNIV
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