Power grid relay protection and secondary circuit dangerous point mining and control method

Abstract

The invention provides a power grid relay protection and secondary circuit dangerous point mining and control method, which comprises the steps of determining a risk point capture object and a capturemode of a power grid relay protection and secondary circuit, capturing the risk point capture object by adopting the determined capture mode, and establishing a dangerous point database, determininga current dangerous point type to be analyzed and existence characteristics in the dangerous point database, formulating a control step and a control method of the current dangerous point type to be analyzed in combination with a preset risk point control principle, and further executing the formulated control step and the formulated control method on the current dangerous point type to be analyzed, wherein the types of the dangerous point to be analyzed at present comprise a static dangerous point and a dynamic dangerous point. Thus, power grid accidents caused by insufficient dangerous pointcontrol can be effectively prevented, and the power grid relay protection and secondary circuit operation stability and the power supply reliability are effectively improved.

Description

technical field [0001] The invention relates to the technical field of power grid relay protection, in particular to a power grid relay protection and a secondary circuit dangerous point excavation and control method. Background technique [0002] Preventing power grid accidents caused by dangerous points in the power grid relay protection and secondary circuit operation and abnormal faults of relay protection is the focus of the work of relay protection field workers. At present, each power grid company has various technical measures and organizational measures, but there are still endless power grid accidents caused by relay protection and secondary circuit operation dangerous points and abnormal faults of relay protection, such as relay protection maintenance operations The occurrence of power grid accidents caused by human error, wrong wiring, wrong setting, wrong switching on and off of the protection connector, abnormal pre-fault protection devices, and incomplete onli...

AI Technical Summary

Problems solved by technology

At present, each power grid company has various technical measures and organizational measures, but there are still endless power grid accidents caused by relay protection and secondary circuit operation dangerous points and abnormal faults of relay protection, such as relay protection maintenance operations The occurrence of power grid accidents caused by human error, wrong wiring, wrong setting, wrong switching on and off of the protection connector, abnormal pre-fault protection devices, and incomplete online monitoring of secondary circuit abnormal data information has brought huge impacts on the safe and stable operation of the power grid. the harm of

However, the main factors leading to the above-mentioned problems are that the staff have no way to capture objects at dangerous points, have no capture method, do not understand their existing characteristics, control methods are incorrect, and cannot talk about the principle of dangerous point control, etc., resulting in insufficient control. lead to grid accidents

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