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An Intelligent Control Method to Realize Fault Self-healing of Subway DC Traction Power Supply System

A technology for DC traction and power supply systems, which is applied in the direction of DC network circuit devices, fault locations, and fault detection according to conductor types. It can solve problems such as time-consuming, highly dependent on manual experience, and equipment personal safety hazards. The effect of improving accuracy

Active Publication Date: 2021-04-09
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the entire process of manual fault handling, there are problems such as time-consuming and highly dependent on manual experience, and fault location and judgment require multiple manual switching of operating modes, which will again endanger equipment and personal safety.

Method used

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  • An Intelligent Control Method to Realize Fault Self-healing of Subway DC Traction Power Supply System
  • An Intelligent Control Method to Realize Fault Self-healing of Subway DC Traction Power Supply System
  • An Intelligent Control Method to Realize Fault Self-healing of Subway DC Traction Power Supply System

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Embodiment Construction

[0054] In the following, the technical solution of the present invention will be clearly and completely described in combination with actual possible failures of the subway traction power supply system.

[0055] Case: Intelligent control method for permanent fault self-healing of positive busbar of DC traction system in station B

[0056] Such as figure 2 As shown, traction substations A, B, and C respectively supply 1500V DC to the positive busbar through switches 201 and 202 in the substation, and each traction substation 211, 213, 212, 214 takes power from the DC positive busbar and supplies it to the uplink and downlink catenary .

[0057] The uplink catenary power supply section from station A to station B is powered bilaterally by the 213 switch at station A and the 211 switch at station B, and the uplink catenary power supply section between station B and station C is powered bilaterally by the 213 switch at station B and the 211 switch at station C. The uplink caten...

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Abstract

The present invention proposes an intelligent control method to realize the fault self-healing of the DC traction power supply system of the subway, which is based on the characteristics of the DC traction power supply system of the subway and the experience of manual fault handling, and adopts the combination of the power monitoring system (PSCADA) and the intelligent video analysis system In this way, software is used instead of manual tasks such as fault type discrimination, fault location, fault processing strategy generation, and system fault self-healing control. The present invention abandons the fixed mode of the traditional preset operation state switching operation ticket, and creatively proposes the concept of unit operation ticket. Combined with the intelligent fault handling strategy, the operation ticket can be intelligently generated, which truly realizes the intelligent control of the whole process of fault self-healing. The present invention can replace the work of operation and maintenance personnel on the premise of ensuring safety and reliability, can effectively improve the efficiency of fault handling, reduce operation and maintenance costs, and ensure the safety of train operation.

Description

technical field [0001] The invention relates to a power supply system control method, in particular to an intelligent control method for realizing fault self-healing of a subway DC traction power supply system. Background technique [0002] The subway DC traction power supply system is the power source of the subway train, and its safe and reliable operation is the guarantee for the normal operation of the train. When the DC traction power supply system of the subway fails, it may cause the power supply interruption of the train, which will not only cause the paralysis of the subway transportation, but also endanger the life and property safety of passengers. [0003] At present, after the DC traction power supply system of the subway fails, it can only rely on manual troubleshooting. After a fault occurs, the operation and maintenance personnel first collect the fault information of each system in multiple ways, and on this basis, rely on experience to make a preliminary j...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00H02J1/00H02H7/26H02H3/06G01R31/08
CPCG01R31/086H02H3/066H02H7/268H02J1/00H02J13/00001H02J13/00002H02J13/0004
Inventor 余涛冯剑冰余龙赖沛鑫招康杰刘洋王文浩谢金莲
Owner SOUTH CHINA UNIV OF TECH
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