Method and system for fault diagnosis of power network equipment

Abstract

The invention relates to an electric power network device fault diagnosis method and a system. The method comprises the following steps: attribute characteristics of an electric power network is subjected to decomposition in order to obtain characteristic information of the electric power network, and the characteristic information is used as input data of modeling, wherein a granularity of the characteristic information of the electric power network can not be further refined; control commands are sent to the electric power network, and according to the control commands, the electric power network returns state information; a real topological structure graph is obtained by means of utilizing the characteristic information of the electric power network through the modeling, and a position scope of a fault point in the electric power network is determined according to the state information; graphs of a real electric power network and a device of the position scope of the fault point are obtained by means of utilizing the characteristic information of the electric power network through the modeling; and state information is compared with the characteristic information of the electric power network to determine a specific position of the fault point, and measurements for solving the fault are given.

Description

technical field [0001] The invention relates to the field of electric power fault processing, in particular to a fault diagnosis method and system for power network equipment. Background technique [0002] Communication scheduling is the organization, command, guidance and coordination of communication signals in order to ensure the safety, quality and economic operation of various industries. With the development of communication technology, communication conditions have been greatly improved. The original analog channels are gradually replaced by digital channels, which have the advantages of high speed, stability, and reliability; the communication medium transitions from the original carrier wave, wired cable, analog microwave, wireless, etc. to the current optical fiber, digital microwave, etc., communication scheduling More and more computer network communication is used, the network capacity is getting larger and larger, and new equipment emerges in an endless stream...

AI Technical Summary

Problems solved by technology

On the one hand, these problems have caused great difficulties to the operation and maintenance of the power communication network, and the cost of operation and maintenance remains high; on the other hand, they have also caused a large number of power network resources to be idle and wasted, affecting further construction and planning

[0006] like image 3 As shown, taking the EPON network as an example, once the OLT is interrupted in the traditional situation, ONU1~ONU5 will not be able to transmit the off-network fault back to the network management because they cannot communicate with the network management, and eventually the network management will only find that the OLT is interrupted and will not Intelligent analysis shows that ONU1 to ONU5 will be interrupted

Furthermore, whether the network failure is caused by OLT interruption or POS interruption cannot be confirmed

[0007] The defect of this technology is that it does not analyze according to the topology of the network, and it cannot intelligently judge the root cause of the fault and quickly locate the fault for complex faults

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