Method for integrating power equipment state monitoring devices

Abstract

The invention discloses a method for integrating a power equipment state monitoring device. The technical scheme is that: a seamless communication server consists of a communication interface, a protocol converter and an ACSI server, and an IEC 61850 client is directly connected with the ACSI server; and transmission and transformation state online monitoring devices in different types are accessed through the provided communication interface. In the method, a mapping rule is established between a traditional protocol and the IEC 61850 by a mapping rule editor; the protocol converter finishes protocol conversion between the traditional protocol and the IEC 61850 by using the mapping rule so as to realize the communication between different transmission and transformation state online monitoring devices and the ACSI server to realize communication between the different transmission and transformation state online monitoring devices and the IEC 61850 client. The method for integrating the power equipment state monitoring devices radically solves the problem that the conventional power grid state online monitoring devices are difficult for interoperation and information sharing, and can better meet the requirements of an intelligent power grid on panoramic state information monitoring.

Description

technical field [0001] The invention relates to an integration method of a state monitoring device of electric power equipment, which can realize interoperability and information sharing among state monitoring devices of different manufacturers under the IEC 61850 technical system, and belongs to the field of monitoring technology. Background technique [0002] The investigation of catastrophic blackout accidents in domestic and foreign power grids shows that although there are advanced control systems and advanced operation application software, the aging transmission grid and outdated power transmission and transformation equipment have caused the power grid to work in a dangerous area. The failure of power transmission and transformation equipment itself has always been one of the main reasons that endanger the safe operation of the power grid, and it also accounts for a considerable proportion of the causes of power grid failures. Domestic and foreign power grid conditio...

AI Technical Summary

Problems solved by technology

[0003] 1) Status monitoring information cannot be shared

The condition monitoring system is still in the decentralized monitoring stage and is independent of the computer monitoring system. Between the power control center and each substation, and between the condition monitoring system and other systems, the data information model and communication interface are highly heterogeneous, making it difficult to make full use of different Information for condition assessment, fault diagnosis and condition maintenance of equipment

[0004] 2) Poor interoperability between condition monitoring devices

[0008] 2) Adopting a character mark-oriented transmission protocol, mainly considering the unification of the data format of the specific equipment, the data transmission efficiency is not high, the usability is not strong, and the amount of information release is small

[0009] 3) It is not only necessary to consider the maintenance of network connections, but also to define each layer of data packets in detail, and must also deal with specific message formats, high and low bytes, etc., and its scalability and readability are poor

[0010] 4) The point-oriented data description method is adopted, and various actual devices are not modeled and described, resulting in poor interoperability between different systems

[0013] 1) IEC 61850 is a huge technical system, and it does not stay at the level of communication protocols, nor does it define specific implementation details

In addition, as the technical system of the substation internal communication network, IEC 61850 mainly focuses on the definition of relay protection, measurement, control and other models in the substation automation system, while the status monitoring integration platform needs high-voltage equipment status data, although IEC 61850 Special logic nodes including liquid dielectric insulation, gas dielectric insulation, arc monitoring and diagnosis, and partial discharge are defined, but they cannot fully meet the needs of communication integration for power equipment condition monitoring. Therefore, it must be combined with the characteristics and actual needs of power equipment condition monitoring. Enables seamless communication of condition monitoring devices

[0014] 2) Existing condition monitoring devices do not yet support IEC 61850, and the mapping between traditional protocols and IEC 61850 must be realized

The method of a specific protocol conversion device can only support a specific device, the cost of protocol conversion is high, and the scalability is poor. The non-converter method is to design a public database in the new system and the mapping with various protocol databases, so that The system can support both the IEC 61850 standard and non-IEC 61850 traditional protocols. The main work is completed in the research and development stage. There is no need for IEC 61850 modeling work on site, and the project volume and difficulty are relatively small. It needs to support the mapping between non-IEC 61850 protocols, the design is complex, and it is difficult to give full play to the technical advantages of IEC 61850

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