New energy relay protection intelligent checking and early warning system based on OCR technology

Abstract

The invention provides a new energy relay protection intelligent checking and early warning system based on the OCR technology. The system comprises a constant value identification module, a parameterchecking module and a constant value checking module which are connected in sequence, wherein the constant value identification module is used for carrying out information acquisition of a relay protection constant value list based on the OCR technology to obtain a constant value list in a standard data format, the parameter checking module is used for collecting and checking each parameter and constructing an anti-error mechanism, and the constant value checking module is used for performing checking and early warning of the constant value outputted by the constant value identification module. The system is advantaged in that granular information collection of the relay protection constant value list is performed based on the OCR technology, accuracy of the constant value is controlled from a source of the device, problems existing in relay protection constant value setting in a station are solved, by setting intelligent checking, an early warning function is realized, the safety risk of the relay protection setting value is reduced, efficient and safe network access operation of new energy is powerfully guaranteed, and problems in network-related setting value checking in the prior art are solved.

Description

technical field [0001] The present invention relates to the technical field of power system relay protection, in particular to an intelligent checking system for new energy relay protection based on OCR technology; at the same time, the present invention also relates to an intelligent early warning system for new energy relay protection based on OCR technology. Background technique [0002] With the substantial increase in the distributed or centralized grid-connected capacity of new energy power sources, its complex fault characteristics and operation modes have brought new challenges to relay protection. The relay protection setting value is the first line of defense for the safe and stable operation of the power grid. There are still problems in the kernel, mainly manifested in: [0003] First, the new energy protection setting is often set from the perspective of protecting the safety of the power generation equipment itself. Usually, the design and setting are too cons...

AI Technical Summary

Problems solved by technology

However, at present, the provincial, prefectural and municipal integrated setting calculation platform or the setting online checking system do not involve this business scope, especially network-related setting values, and there are risks of protection refusal and misoperation

[0005] The third is that there is no mature implementation plan for the verification of new energy fixed value in terms of organizational form or technical system

The review mainly relies on the completion of manual offline paper or electronic filing, and the accuracy and completeness of the reported value cannot be guaranteed from the source of the device, and the unified management of data filing and storage cannot be achieved. The work is heavy and intelligent information low level

[0006] Although many protection setting and calibration methods have been proposed in recent years, they are more focused on the main distribution network

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