Power grid broadband oscillation data processing method and system, equipment and readable storage medium

Abstract

The invention belongs to the field of power system automation, and discloses a power grid broadband oscillation data processing method and system, equipment and a readable storage medium. The method comprises the following steps: obtaining measurement data and oscillation information of each electrical interval in each plant station, wherein the oscillation information comprises oscillation alarm information and oscillation recording files; and acquiring oscillation alarm starting and ending time of the oscillation alarm information in the oscillation information to obtain associated starting and ending time of the oscillation information, and combining the oscillation alarm information, the oscillation recording files and the measurement data in the associated starting and ending time of the electrical intervals to which the oscillation information belongs according to the associated starting and ending time of the oscillation information to obtain associated information. Compared with an existing WAMS mode, the invention can flexibly obtain all measurement data and oscillation recording files of oscillation events, can effectively distinguish types of all the oscillation events to facilitate post-analysis of the oscillation events, can perform targeted analysis on the oscillation events that have occurred, and can summarize oscillation reasons for prevention and suppression.

Description

technical field [0001] The invention belongs to the field of electric power system automation, and relates to a method, system, equipment and readable storage medium for processing broadband oscillation data of a power grid. Background technique [0002] During the operation of traditional thermal power units, due to self-regulation and control reasons or external disturbances, the units will continue to vibrate. The performance is that the power of the power grid fluctuates regularly, which is called "oscillation" in the industry. The oscillations that appear in the system are mainly low-frequency oscillations caused by thermal power units. [0003] In recent years, the power system is undergoing profound changes, and the prominent feature and trend is the extensive access of power electronic converters. Among them, on the power supply side of the power system, the converter power supply continues to grow, and the proportion of wind power and photovoltaic power generation ...

AI Technical Summary

Problems solved by technology

However, the oscillation analysis of WAMS mainly relies on the data uploaded in real time by the PMU (synchronous vector measurement unit), and it does not have the function of recording waves of the original sampling data. Before and after the fundamental wave measurement data, not the original measurement data

As a result, the WAMS master station cannot flexibly obtain oscillation recording files, and when multiple different types of oscillations occur, the existing WAMS cannot accurately distinguish the oscillation types, which is not conducive to post-analysis of oscillations

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