Information physical fusion-based secondary equipment on-line monitoring and fault diagnosis system

Abstract

The present invention discloses an information physical fusion-based secondary equipment on-line monitoring and fault diagnosis system. The system comprises a secondary equipment multi-dimensional state information acquisition unit, a secondary equipment state monitoring information model unit, a secondary equipment state monitoring physical model unit, an information physical fusion unit, a secondary equipment on-line monitoring comprehensive monitoring unit and a secondary equipment fault diagnosis and comprehensive evaluation unit; and based on the information physical fusion unit, monitoring information is taken as the state quantity attribute value of a secondary equipment physical object, so that the association and fusion of the secondary equipment state monitoring information model unit and the secondary equipment state monitoring physical model unit can be realized. With the system of the invention adopted, the problem that the state monitoring of the secondary equipment of an intelligent substation is not intuitive and inconvenient to carry out fault diagnosis can be solved; a platform and technical means for intelligent substation secondary equipment state monitoring and fault diagnosis can be provided for the operation and maintenance staff of the intelligent substation; and therefore, the operation and maintenance efficiency and automation level of the secondary equipment of the intelligent substation can be effectively improved.

Description

technical field [0001] The invention relates to an online monitoring and fault diagnosis system, in particular to an online monitoring and fault diagnosis system for secondary equipment based on cyber-physical fusion, belonging to the field of power equipment state monitoring. Background technique [0002] The traditional substation secondary equipment status monitoring content is relatively small, and the status monitoring of the secondary equipment is realized by SCADA. There is also a lack of means for visual monitoring and fault diagnosis of secondary equipment. The maintenance of secondary equipment is mostly based on regular maintenance, and the workload of troubleshooting and operation and maintenance of secondary equipment is relatively large. [0003] The intelligent substation realizes the intelligentization of secondary equipment, the digitalization of information collection and the networking of information transmission. The content of secondary equipment status ...

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Problems solved by technology

[0004] The main purpose of the present invention is to overcome the deficiencies in the prior art, provide an on-line monitoring and fault diagnosis system for secondary equipment based on information-physical fusion, and solve the problem that the state monitoring of secondary equipment in intelligent substations is not intuitive and inconvenient for fault diagnosis. Provide smart substation operation and maintenance personnel with a platform and technical means for status monitoring and fault diagnosis of secondary equipment in smart substations, thereby effectively improving the operation and maintenance efficiency and automation level of secondary equipment in smart substations

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