Relay protection running management information system

Abstract

The invention relates to a relay protection running management information system, which consists of a main station layer, a substation layer and an equipment layer, wherein the main station layer consists of a database, an application layer and a client layer; the database is used for storing system structure model data and historical sampling data; the application layer realizes encapsulation of system application logic at a server end; the client layer comprises a system model management module, a fault analysis module, an equipment management module and a valuing and checking module which are flexibly distributed under network environment and serve as client application, and a communication management module; and the substation layer comprises a communication service module and a system management module, and is used for accessing various IED devices in field, communicating with the IED devices in field and completing protocol converting and data forwarding functions. The system improves the informatization and intelligence levels of a power grid safety running dispatching system, and can provide real-time fault information for the dispatching when a power grid is failed so as to improve the automation level of the dispatching.

Description

technical field [0001] The invention relates to a relay protection operation management information system. Background technique [0002] At present, the operation and management of relay protection equipment by power supply companies in various regions is almost entirely dependent on the manual management and maintenance of relay protection personnel at all levels and corresponding relay protection operation and maintenance personnel. So far, there is no set of better tools for effective management and statistics of relay protection equipment and its operating status, action behavior and maintenance. Pure manual management and maintenance have the following problems: [0003] 1) The relay protection system does not use a unified networking platform, and the operation and management personnel cannot understand the real-time operation status of the protection in the substation. At present, only a few remote signals in the station (such as differential action, a certain sect...

AI Technical Summary

Problems solved by technology

[0003] 1) The relay protection system does not use a unified networking platform, and the operation and management personnel cannot understand the real-time operation status of the protection in the substation

At present, only a few remote signals in the station (such as differential action, a certain section of busbar protection trip, a certain section of busbar protection alarm, etc.) During normal operation, the relay protection operation management personnel have no way of knowing the operation conditions of the relay protection in the substation concerned

[0004] 2) Once a power grid failure occurs, the operation management personnel can only know the result of the tripping of the relay protection action through dispatching. They do not know which protection action, whether there is a problem of refusal to operate or malfunction

Therefore, as relay protection operation managers, they can only send protection team personnel to the site for further analysis and processing

[0005] 3) When the power grid is faulty or the protection equipment is abnormal, the relay protection special value has a certain understanding of the relay protection equipment and the power grid fault situation after frequent telephone contact with the on-site repair personnel, but sometimes it is difficult to analyze complex problems. It is not comprehensive enough, so in some cases, the special value personnel of relay protection at the district and district levels need to go to the site for further analysis, which prolongs the repair time and sometimes affects the timely restoration of power supply

[0006] 4) At present, there are many kinds of microcomputer protection used in medium and low power grids, and foreign products are also widely used in many areas. The operation interface of the protection device is not very friendly, and the action instructions of the protection components are not clear. Further fault analysis after the protection action still needs to rely on The maintenance software of these manufacturers brings inconvenience to operation and maintenance

Sometimes when the equipment is abnormal or encounters complex problems, it is necessary to ask the manufacturer's maintenance personnel to help solve the problem, which also brings great inconvenience to the accident handling work, and even makes the operation and maintenance personnel fall into a very passive situation

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