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Optimal setting method of power supply partitions based on the passing capacity of medium-speed maglev lines

A technology for partition optimization and routing, applied in genetic models, data processing applications, forecasting, etc., can solve problems such as the influence of routing capacity and failure to improve routing capacity, and achieve the effect of improving adaptability

Active Publication Date: 2021-02-19
BEIJING JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, in the field of maglev transportation, the research on maglev mainly focuses on the traction power supply system and train operation control. Mainly from the perspective of the traction power supply system, not from the perspective of improving the line passing capacity. However, the power supply partition is the smallest unit occupied during the operation of the medium-speed maglev train, which has a greater impact on the line passing capacity

Method used

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  • Optimal setting method of power supply partitions based on the passing capacity of medium-speed maglev lines
  • Optimal setting method of power supply partitions based on the passing capacity of medium-speed maglev lines
  • Optimal setting method of power supply partitions based on the passing capacity of medium-speed maglev lines

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Embodiment 1

[0059] figure 1 It is a method flow chart of a power supply partition optimization setting method based on the passing capacity of medium-speed maglev lines provided by Embodiment 1 of the present invention; figure 2 For the processing flow chart of a power supply partition optimization setting method based on the passing capacity of medium-speed maglev lines provided by Embodiment 1 of the present invention, refer to figure 1 and figure 2 , the method includes the following steps:

[0060] S1 determines the number of sections, section length and maximum number of stator segments on the medium-speed maglev line;

[0061] S2, according to the number of intervals on the line, the length of the interval and the maximum number of stator segments, use a genetic algorithm to generate a power supply partition setting scheme;

[0062] S3 uses the capacity calculation model to calculate the line passing capacity under each power supply partition setting scheme according to the pow...

Embodiment 2

[0179] Embodiment 2 of the present invention provides a calculation example of a method for optimally setting power supply partitions based on line throughput. First, encode according to the line conditions of the example (including stations, sections, etc.), and generate a power supply partition setting scheme through a genetic algorithm; secondly, calculate the line passing capacity under each power supply partition setting scheme, and perform update iterations; finally, until The objective function converges, and the power supply partition setting scheme with the largest line passing capacity is selected.

[0180] (1) Introduction to the example circuit

[0181] Figure 9 For the large-scale example line topology diagram provided by Embodiment 2 of the present invention, refer to Figure 9 , the medium-speed maglev design line is a two-line line with a total length of 90km. There are 5 stations on the whole line and 4 sections on the whole line. The length of each section...

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Abstract

The invention provides a power supply partition optimization setting method based on the passing capacity of the medium-speed maglev line, which includes: determining the number of intervals on the medium-speed maglev line, the length of the interval and the maximum number of stator segments; using a genetic algorithm to generate a power supply partition setting scheme ; Use the capacity calculation model to calculate the line passing capacity under each power supply partition setting scheme; use the Lagrangian relaxation algorithm to optimize and update the line passing capacity under each power supply partition setting scheme, and judge the power supply partition with the largest passing capacity Set the scheme as the power partitioning scheme. The present invention analyzes the influence of power supply partitions on the passing capacity of medium-speed maglev lines, constructs an optimal setting method for power supply partitions based on the passing capacity of medium-speed maglev lines, solves the problem of optimizing the setting of power supply partitions with the goal of improving line passing capacity, and improves the efficiency of medium-speed maglev lines. The adaptability of power supply partitions on high-speed maglev lines.

Description

technical field [0001] The invention relates to the field of maglev transportation, in particular to a method for optimally setting power supply partitions based on the passing capacity of medium-speed maglev lines. Background technique [0002] At present, in the field of maglev transportation, the research on maglev mainly focuses on the traction power supply system and train operation control. Mainly from the perspective of the traction power supply system, not from the perspective of improving the line passing capacity. However, the power supply partition is the smallest unit occupied during the operation of the medium-speed maglev train, which has a greater impact on the line passing capacity. Therefore, in order to more reasonably arrange the capacity resources of medium-speed maglevs, it is urgent to conduct research on the optimal setting of power supply partitions from the perspective of improving line throughput. Contents of the invention [0003] The invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06G06N3/12
Inventor 刘军孟令云王群燕赖晴鹰柴晓凤徐亚之刘宇刘曰锋火淑琴丁文亮
Owner BEIJING JIAOTONG UNIV