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An Optimization Method of Catenary and Pantograph Parameters Based on Sensitivity Analysis

A sensitivity analysis and optimization method technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as large engineering quantities

Active Publication Date: 2019-10-11
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0003] However, in the previous technology, most of them are based on engineering experience, or use multiple tests to adjust the parameters of the catenary and change the pantograph model to improve the current quality of the pantograph-catenary, and the amount of work is relatively large.

Method used

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  • An Optimization Method of Catenary and Pantograph Parameters Based on Sensitivity Analysis
  • An Optimization Method of Catenary and Pantograph Parameters Based on Sensitivity Analysis
  • An Optimization Method of Catenary and Pantograph Parameters Based on Sensitivity Analysis

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Embodiment

[0045] The optimization method of catenary parameters based on sensitivity analysis includes the following steps:

[0046] Step 1: According to the initial design scheme or the initial pantograph-catenary model, according to the pantograph-catenary contact pressure when the high-speed train is running, calculate the standard deviation, average value, maximum value and offline rate of the contact pressure, and analyze the problems that arise;

[0047] Initial pantograph-catenary model: The structural parameters in the figure refer to the Beijing-Tianjin intercity high-speed railway catenary and the Faiveley CX series pantograph respectively, such as figure 1 and figure 2 shown;

[0048] The average value, standard deviation and maximum value of the contact pressure are used as evaluation indicators to analyze the change of the contact pressure. Figure 5 The contact pressure shown is calculated as follows:

[0049] Average contact pressure:

[0050]

[0051] Contact Pre...

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Abstract

The invention discloses a method for optimizing parameters of a contact line and a pantograph based on sensitivity analysis. According to bow-net contact pressure during running of a high speed train, the existing problem is analyzed, level value design of the parameters is carried out through central composite design, and multi-factor and five-level parameters are obtained; an Spearman rank correlation coefficient method is adopted to compute correlation coefficients between the parameters of the contact line and the pantograph and the contact pressure to judge the correlation; and an Sobol method is adopted to compute sensitivity coefficients of the parameters of the contact line and the pantograph about the contact pressure, judge the impact of the parameters on the contact pressure and determine an optimization order of the parameters when the bow-net parameter optimization is carried out, after each index meets relevant standard requirements, optimization is ended and all bow-net parameter values are output. The method has reasonable optimization, and the parameters of the contact line and the pantograph can be adjusted quickly and reasonably, so that the contact pressure of the parameters of the contact line and the pantograph can be controlled reasonably.

Description

technical field [0001] The invention relates to the technical field of high-speed rail pantograph-catenary current collection, in particular to an optimization method for catenary and pantograph parameters based on sensitivity analysis. Background technique [0002] When the train is running at a high speed, under the influence of wheel-rail and aerodynamic excitation, the vibration of the pantograph and the fluctuation of the catenary are serious, which affects the continuous and stable flow of the pantograph. Under the conditions of pantograph running speed and external excitation conditions, the quality of current receiving between pantograph and catenary is mainly affected by the parameters of catenary and pantograph. That is to say, the pantograph-catenary current receiving quality can be improved by adjusting the parameter values ​​of catenary and pantograph. Then determining the changing direction of the parameters and the degree of influence of each parameter on the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/17
Inventor 张坚刘文正于美丽
Owner BEIJING JIAOTONG UNIV
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