Secondary equipment state online monitoring method

Abstract

The invention relates to a secondary equipment state online monitoring method. The method includes firstly acquiring data required to monitor of a process level and a bay level in a safe I area; sending the data required to monitor of the process level in the safe I area to a bay level IED to process, and then uploading the data required to monitor of the process level and the bay level to a monitoring master; transmitting self-detecting information of a data server and data network device of a station level to the monitoring master, and allowing the monitoring master to acquire own self-detecting information; and allowing a comprehensive application server to read at regular intervals and display the secondary equipment information of the safe I area in real time. By the aid of the method, information including self-detecting information, operating state information, alarming information and timing information of all secondary equipment of the station level, process level and bay level of an intelligent substation can be monitored, and comprehensive display and alarm of the secondary equipment can be realized; by the aid of the technical support provided by the method, producing efficiency can be improved, equipment shutdown times can be reduced, labor cost can be saved, and regular inspections and detections for secondary systems can be reduced or eliminated.

Description

technical field [0001] The invention belongs to the technical field of power system automation, and relates to an online monitoring method for secondary equipment status. Background technique [0002] In order to ensure the integrity and normal function of the secondary system, and to ensure that the circuit wiring and setting are correct, the relay protection and secondary circuit need to be inspected regularly. In order to improve productivity, reduce equipment downtime, and save labor costs, it is necessary to reduce or cancel the regular inspection and inspection of the secondary system. [0003] The secondary system of the smart substation uses digital sampling values ​​instead of conventional analog AC data for transmission, and the protection outlet, control and signal circuits are also changed from conventional secondary cables to GOOSE switching value transmission based on optical fiber Ethernet, avoiding conventional substations The secondary system monitors the e...

AI Technical Summary

Problems solved by technology

[0004] At present, the secondary equipment of the intelligent station itself has some self-inspection functions, such as the self-inspection of the input and output hardware loops, the self-inspection of the control loop disconnection, etc., but the monitoring information is not comprehensive and the monitoring range is relatively small. Some important equipment such as process Layer switches are not included in the scope of monitoring, and the condition-based maintenance of the secondary system cannot be truly realized

[0005] At the same time, the new generation of smart substations puts forward technical requirements for online monitoring of secondary equipment: monitoring and protection devices, measurement and control devices, fault recording devices, station domain protection devices, monitoring hosts, data communication gateways, data servers and other equipment operating status, Collect the status monitoring data of the device to realize the comprehensive display and alarm of the operation status information of the secondary equipment, but there is currently no feasible online monitoring method for the status of the secondary equipment

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