Method, system and equipment for determining broadband oscillation in-situ monitoring alarm threshold and medium

Abstract

The invention belongs to the field of power system automation, and discloses a broadband oscillation in-situ monitoring alarm threshold determination method, system and device and a storage medium, and the method comprises the steps: firstly obtaining the interval type and oscillation type of each interval in a broadband oscillation monitoring range, and then determining the oscillation characteristic quantity of each interval according to the oscillation type of each interval; and determining the oscillation characteristic quantity alarm threshold value of each interval and the dynamic alarm time of the oscillation characteristic quantity alarm threshold value according to the oscillation characteristic quantity of each interval and the interval type. The broadband oscillation alarm threshold determination method oriented to multiple intervals, multiple oscillation types and multiple oscillation characteristic quantities is realized, different oscillation characteristic quantity alarm thresholds can be set according to different types of broadband oscillation, and compared with a fixed alarm threshold, the alarm threshold determination method has the advantages that the alarm threshold determination efficiency is improved; the differential oscillation characteristic quantity alarm threshold value determined by the method not only contributes to accurate monitoring and identification of broadband oscillation, but also can provide guidance and reference for on-site monitoring and alarm of broadband oscillation at the same time, so that the operation safety of a power grid is guaranteed.