A capacitor monitoring method, system and device based on reactive power acquisition

Abstract

The invention relates to the technical field of power monitoring, and discloses a capacitor monitoring method, system and equipment based on reactive power acquisition. The invention determines the initial investment time of the capacitor based on the reactive power data of the capacitor in the SCADA system, and introduces the replacement information and limit action times of the capacitor in the asset management system, determines each input time period according to the replacement information and the initial investment time, and then counts The number of switching actions of the capacitor in each input time period; when the number of switching actions is greater than the threshold of the number of actions set based on the number of limit actions, it is determined that the number of switching actions of the capacitor in the corresponding input time period is too high, and an alarm is issued. The invention counts the number of capacitor switching actions based on reactive power data, and adds an early warning function for excessive capacitor switching actions, thereby realizing automatic and accurate monitoring of capacitors, which is very important for mastering capacitor commissioning rules and capacitor maintenance. meaning.

Description

technical field [0001] The present invention relates to the technical field of power monitoring, in particular to a capacitor monitoring method, system and device based on reactive power acquisition. Background technique [0002] At present, the capacitor bank in the reactive power compensation equipment of the power system is frequently switched, which makes the capacitor bank switch more prone to failure than other circuit breakers. [0003] In the prior art, the number of capacitor switching operations is determined by means of manual inspection, and the capacitor is judged for faults based on the number of capacitor switching operations, thereby realizing monitoring of the capacitor. In the case of heavy work tasks, the negligence of operators during manual inspection may lead to missed detection or misdetection of some meters used to record the number of capacitor switching actions, and there may also be misinterpretation and misjudgment of meter readings. , resulting ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a capacitor monitoring method, system and equipment based on reactive power collection, which solves the technical problem of how to realize automatic and accurate monitoring of capacitors

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