Secondary virtual loop visualization system based on SCD complete model, and operation method

Abstract

The invention discloses a secondary virtual loop visualization system based on an SCD complete model, and the system comprises a network communication module which enables a GOOSE message to be analyzed into a GOOSE real-time model for output; a model analysis module which receives an SCD file, supplements and connects an optical cable model to form an SCD complete model, and analyzes the SCD file to form a secondary system virtual loop model; a map and model mapping module which receives the secondary system virtual loop model, and builds the mapping relation between physical connection and a logic link and the mapping relation between the logic link and a function loop; and a visualization display module which receives the mapping relation between the GOOSE real-time model and the map and model mapping module, and employs the map and model integration technology to carry out the secondary loop visualization display based on the complete SCD model. The system can locate a specific physical link and the impact on the protection of the function of a secondary loop according to the abnormal condition of a GOOSE message, carries out the visual display, and provides reliable technical guarantee for the safety operation of an intelligent transformer station.

Description

Technical field [0001] The invention relates to an online monitoring technology in the technical field of power systems, in particular to a protection secondary circuit visualization system and an operation method based on an SCD complete model. Background technique [0002] With the advancement of substation automation technology based on IEC61850, the connection method of relay protection and other secondary equipment has replaced traditional cable connection by optical fiber communication. The function of the protection device has passed the GOOSE (GenericObject Oriented Substation Event) defined by IEC61850, which is a general object-oriented The substation event) message is realized, and the association relationship of the substation secondary system is covered by the SCD (Substation Configuration Description) file. In this way, since the entire substation secondary system becomes a black box, the operation and maintenance personnel cannot visually observe it. The relationsh...

AI Technical Summary

Problems solved by technology

[0002] With the advancement of substation automation technology based on IEC61850, the connection method of relay protection and other secondary equipment has replaced the traditional cable connection by optical fiber communication. substation event) message, and the relationship between the substation secondary system is covered by the SCD (Substation Configuration Description, substation configuration description) file. In this way, since the entire substation secondary system becomes a black box, the operation and maintenance personnel cannot intuitively observe The relationship between secondary equipment such as protection and protection brings many difficulties to the operation and management of substations, and also increases the risk of substation operations

Images