Waveform identification method based on operating-characteristic working condition waveform library of high-speed rail

A technology of operating characteristics and waveform recognition, which is applied in character and pattern recognition, instruments, frequency-to-amplitude conversion, etc., can solve the problems of less research on electric railway waveform recording, and achieve safety assurance, high reliability of results, and Realize the effect of intelligence

Inactive Publication Date: 2012-07-04
SOUTHEAST UNIV
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Problems solved by technology

In short, the research on the power quality of electrified railways mainly focuses on the simulation of electrified railway conditions and the analysis of electric railway monitoring data, and there are few studies on the recorded waveforms of electric railways under actual operating conditions.

Method used

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  • Waveform identification method based on operating-characteristic working condition waveform library of high-speed rail
  • Waveform identification method based on operating-characteristic working condition waveform library of high-speed rail
  • Waveform identification method based on operating-characteristic working condition waveform library of high-speed rail

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Embodiment Construction

[0021] The technical solutions of the present invention will be specifically introduced below in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, the present invention provides a waveform recognition method based on the waveform library of high-speed rail operating characteristic conditions. The high-speed railway mentioned in this article refers to the high-speed electrified railway with a speed of 250-350km / h, mainly including trains, traction substations and tracks.

[0023] The identification method includes the following steps:

[0024] 101. Establish the operating characteristic waveform library of offline high-speed rail.

[0025] This step 101 is realized through the following steps 1011 , 1012 and 1013 .

[0026] 1011. Set the variable representing the operating characteristic operating mode of the offline high-speed rail. The operating characteristic mode of the offline high-speed rail in this step 1011 includes high-speed rail acce...

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Abstract

The invention discloses a waveform identification method based on an operating-characteristic working condition waveform library of a high-speed rail, which comprises the following steps of: 101, setting an operating-characteristic working condition waveform library of an off-line high-speed rail; 102, generating a testing waveform of voltage and / or current in operation of the high-speed rail; 103, extracting the testing waveform characteristic quantity of voltage and / or current in operation of the high-speed rail; 104, detecting an abnormal data waveband; 105, extracting the working condition information of the abnormal data waveband; 106, carrying out working condition pattern matching for the abnormal data waveband; 107, comparing the similarity of the abnormal data waveband and a sample waveform; 108, and extracting the working condition waveform. The identification method utilizes the characteristic working condition waveform library of the high-speed rail to carry out the working condition pattern matching for the abnormal waveband existing in the actual operation of the high-speed rail, so that a user can detect the operation of the high-speed rail in real time, and the operation security of the high-speed rail is beneficially ensured.

Description

technical field [0001] The invention relates to a method for identifying high-speed rail waveforms by using a database, in particular to a waveform identification method based on a waveform library of high-speed rail operating characteristic operating conditions. Background technique [0002] Electrified railway has the advantages of fast speed, strong transportation capacity, long power supply distance, energy saving and cost saving, good traction performance, etc., so it has broad development prospects and is the development direction of the world and my country's railways. However, as a typical single-phase load, high-speed electrified railways are connected to the power grid in large quantities, which deteriorates the power quality level of the power grid. Low power factor, large negative sequence power, and rich harmonic content are typical power quality problems of electrified railways. At the same time, the large increase in the traction load of high-speed railways an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G01R23/06
Inventor 顾伟王芳林德清
Owner SOUTHEAST UNIV
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