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Energy-saving slope optimization method based on Gaussian pseudo-spectral method

A Gaussian pseudospectral method and optimization method technology, applied in the field of rail transit line design, can solve problems such as the inability to find the optimal solution, and achieve the effect of reducing operating costs, realizing energy conservation and emission reduction, and saving operating energy consumption.

Pending Publication Date: 2022-07-01
BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST
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Problems solved by technology

This approach can find a better energy-saving slope design scheme in the combination, but it cannot find the optimal scheme
At the same time, when considering the control point elevation, there are certain limitations

Method used

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  • Energy-saving slope optimization method based on Gaussian pseudo-spectral method
  • Energy-saving slope optimization method based on Gaussian pseudo-spectral method
  • Energy-saving slope optimization method based on Gaussian pseudo-spectral method

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Embodiment Construction

[0105] The energy-saving slope optimization method based on the Gauss pseudo-spectral method of the present invention is suitable for the longitudinal section design of urban rail transit lines, and can provide the optimal energy-saving slope design scheme for train running energy consumption. figure 2 shown;

[0106] Include the following steps:

[0107] 1) Transform the energy-saving slope optimization problem of train operation into the expression form of the optimal control problem, and set boundary constraints, path constraints, allowable control and performance indicators according to the state of train manipulation;

[0108] For the optimal control problem of the train operation system, the gradient is selected as the allowable control u(t) of the optimal control problem, and the train operation speed, energy consumption, distance, and elevation difference are used as the system state x(t), and are divided into four parts according to the working conditions. The stage...

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Abstract

According to the energy-saving slope optimization method based on the Gaussian pseudo-spectral method, the method is adopted in the planning and design stage to achieve line longitudinal section design, the operation energy consumption of trains in the operation period can be effectively saved, and the rail transit operation cost is effectively reduced. Through comparison of multiple train simulation test experiments, the energy-saving effects of train operation are different under the conditions of different lines, vehicles and the like. Under the cruise working condition, the train operation energy consumption can be saved by 4.8%-16.2%, and for a rail transit system with large electricity consumption, the operation cost can be effectively reduced, and the purposes of energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention relates to the field of rail transit line design, and is suitable for the longitudinal section design of urban rail transit lines. Background technique [0002] Urban rail transit consumes a lot of energy every day, and saving operating energy consumption is of great practical significance for reducing rail transit operating costs and improving economic benefits. [0003] In order to reduce energy consumption, people have taken many energy-saving measures, including vehicle weight reduction (such as the use of aluminum alloy body), energy-saving route design, and the use of mobile block train control systems. In the design of the longitudinal section of the rail transit engineering line, the subway station is usually set at the highest point of the longitudinal section of the line, and both ends of the station are downhill, so as to realize the design of "energy-saving slope" for entering and exiting the station, which not only meets the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/18G06F111/04G06F111/10G06F119/14
CPCG06F30/13G06F30/18G06F2111/10G06F2111/04G06F2119/14
Inventor 曹金铭韩波李妙迪方恒堃王京峰邢行李四春钱蕾
Owner BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST
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