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Research on Auto-Passing Phase Separation Overvoltage Mechanismand Suppression Method of High-Speed EMU(PDF)

南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2017年03期
Page:
29-
Research Field:
电气与电子工程
Publishing date:

Info

Title:
Research on Auto-Passing Phase Separation Overvoltage Mechanismand Suppression Method of High-Speed EMU
Author(s):
Xu Hai1Geng Lu2Gao Xiang2Yan Wei2Wang Enrong2Ye Xiaogang2
(1.Jiangsu Keneng Electric Power Engineering Consulting Co.,Ltd.,Nanjing 210036,China)(2.School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing 210042,China)
Keywords:
traction transformerstatic overvoltagetraction drive
PACS:
TB95
DOI:
10.3969/j.issn.1672-1292.2017.03.005
Abstract:
The overvoltage of the traction transformer is generated due to the cut on or off operation of the main circuit breaker,when high speed train passes the neutral section. It has a great harm on the power systems and other trains. The overvoltage mechanism is analyzed due to CRH2 electric multiple units passing the neutral section. The traction drive system models are established on the basis of SIMULINK for CRH2 electric multiple units. The operation performance and circuit characteristics are studied. The overvoltage treatment scheme is introduced on the basis of the RC absorption and its parameter optimization strategy is proposed. Moreover,the relationship between the voltage phase and overvoltage is analyzed while CRH2 electric multiple units passing the neutral section. The automatic quasi synchronization device is proposed to control the voltage phase and decrease the overvoltage,which provides the theoretical basis and engineering guidance to solve the overvoltage and increases the safety and reliability of high speed train operation.

References:

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Last Update: 2017-09-30