An automatic point-to-point method for relay protection information suitable for smart substations

Abstract

The invention discloses an automatic point matching method suitable for an intelligent substation. According to the method, the simulation point matching internal process (the process is originally triggered by operating the simulation set point through the device liquid crystal interface) of in-station relay protection equipment is triggered by using the point setting process of IEC61850 communication in the management system communicating with the relay protection equipment on the basis of performing simplified modeling so that automatic point matching of all the information can be realized.With application of the method, the problem of automatic point matching of switching quantity, analog quantity, events and other information can be simultaneously solved so as to have great promotioneffect on enhancing the point matching efficiency of the intelligent substation and reducing the workload.

Description

technical field [0001] The invention belongs to the field of electric power system relay protection, and in particular relates to a method suitable for automatic point checking of relay protection equipment information in an intelligent substation. Background technique [0002] In recent years, the rapid development of smart substations and the rapid growth of the number of substation secondary equipment have brought heavy pressure to the operation and maintenance of smart substations. Although the number of equipment has increased rapidly, there has not been an increase in the number of operation and maintenance personnel in the same proportion. At the same time, the operation and maintenance of smart substations has further increased the technical requirements for personnel, and the traditional relay protection debugging and maintenance methods can no longer meet the needs. The original intention of the emergence of smart substations is to improve the intelligence of the ...

AI Technical Summary

Problems solved by technology

Each of these three services has its limitations: the setting point service can realize the setting and checking of all analog and switch value information, but it needs to carry out corresponding modeling for each point, the modeling workload is very large, and it needs to be point by point To set the change value, the operation workload is also very large; the control service also needs to carry out corresponding modeling for each point, which also has the problem of heavy modeling workload, and this service can only realize the switch value information of the device (such as alarm , open input and pressure plate) settings and checks, can not achieve telemetry point; replacement service is the closest to the requirements of automatic point in IEC61850 support services, and can realize the setting of information points without remodeling And check, but this service does not support some information, such as protection event information, there is no corresponding service process, and the corresponding public data class needs to be extended to realize, and this extension does not conform to the IEC61850 specification

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