Fault diagnosis and assessment method of intelligent substation

A technology for intelligent substation and fault diagnosis, applied in electrical components, circuit devices, information technology support systems, etc., can solve the problem that the depth of diagnosis and the diagnosis method cannot meet the needs of intelligent operation of substations, and accurately describe the knowledge characteristics of intelligent substations.

Inactive Publication Date: 2013-03-27
SHANDONG UNIV
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Problems solved by technology

[0004] The intelligence of the primary equipment of the smart substation enables the primary equipment to be associated with various smart devices such as merging units, smart components, and smart terminals in the secondary system. In the future, these smart devices will be integrated with the primary equipment, and the primary equipment will be directly connected to the The secondary system network, the primary system and the secondary system are more closely related, and only relying on the primary system and limit

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  • Fault diagnosis and assessment method of intelligent substation
  • Fault diagnosis and assessment method of intelligent substation
  • Fault diagnosis and assessment method of intelligent substation

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Embodiment Construction

[0064] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0065] Step 1: Construct an intelligent substation fault diagnosis and evaluation information model

[0066] Smart substation fault diagnosis and evaluation information can be divided into static information and dynamic information. Static information includes the main wiring topology of smart substations, physical and logical association information of primary equipment and secondary devices, and networking information of communication networks. The function configuration model obtained (using the function configuration file described by the substation configuration language SCL). Dynamic information includes the operation information of primary equipment, the position of circuit breakers and isolating switches, the action information of protection and control devices, the sampling value and flow information reflected in network messages, and the infor...

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Abstract

The invention discloses a fault diagnosis and assessment method of an intelligent substation. The fault diagnosis and assessment method is characterized by including the specific steps that a fault diagnosis and assessment information model of the intelligent substation is constructed; fault and assessment indexes of a primary device, a secondary device and a network device in the intelligent substation are calculated on the basis of the fault diagnosis and assessment information model; a Petri net is used to perform primary fault diagnosis and assessment to the intelligent substation; and final diagnosis and assessment are performed by means of a distributed type expert system based on a knowledge base. The fault diagnosis and assessment method has the advantages of being clear in the diagnosis process, fast and practical in diagnosis methods and accurate and reliable in diagnosis results.

Description

technical field [0001] The invention relates to a fault diagnosis and evaluation method, in particular to a fault diagnosis and evaluation method of an intelligent substation. Background technique [0002] With the deepening of smart grid construction, the construction of smart substation, which is the core part of smart grid, is also developing rapidly. State Grid released the "Smart Substation Design Code" in February 2010, defining a Smart Substation as "advanced, reliable, integrated, low-carbon, and environmentally friendly The standardization of information sharing is the basic requirement, and the basic functions such as information collection, measurement, control, protection, metering and monitoring can be automatically completed, and the substation can support advanced functions such as real-time automatic control of the power grid, intelligent adjustment, online analysis and decision-making, and collaborative interaction as needed.” . It can be seen that compare...

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Application Information

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IPC IPC(8): H02J13/00
CPCY02E60/723Y04S10/16Y02E60/00
Inventor 高湛军陈青聂德桢王磊
Owner SHANDONG UNIV
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