Method for determining pollution grade change of power grid theory

Abstract

The invention relates to a method for determining the pollution grade change of a power grid theory. The method comprises the following steps: determining the air quality index P of power grid pollution area flashover features; determining an ESDD (Equivalent Salt Deposit Density); and reckoning a pollution grade change situation of the power grid theory in real time. The method considers that atmospheric pollutants in each area have certain difference and the influence degrees of SO2, NO2 and PM10 in the atmospheric pollutants in each area can not be identical, the method makes correction suggestions for an empirical formula, which is given by certain scientific research institution, between a salt density value and an atmospheric quality index, and main pollutant PM2.5 in the atmospheric pollution in recent years are brought into the empirical formula. An atmospheric environment parameter independent term including PM2.5 is established, an independent term selection method and principle are put forward to obtain the method for determining the pollution grade change of the power grid theory by the atmospheric environment parameters including PM2.5 and the like in real time.

Description

Technical field: [0001] The invention relates to a method for determining the change of the theoretical pollution level of the power grid, and more specifically relates to a method for using PM 2.5 A method to determine the change of the theoretical pollution level of the power grid in real time, such as atmospheric environment parameters. Background technique: [0002] In recent years, with the rapid development of the economy, pollution has become increasingly serious. Although various anti-pollution measures have been adopted, pollution flashover accidents of insulators in the power system still occur from time to time, which seriously threatens the reliable operation of the power system. In February 2001, the large-area pollution flashover in North China and Northeast China was characterized by high humidity, continuous dense fog, and poor air quality. According to the environmental monitoring data of Henan, Hebei, Shenyang and other places, the air pollution level has ...

AI Technical Summary

Problems solved by technology

[0008] The above empirical formula will SO 2 As the main air pollutant, but there are some differences in air pollutants in different regions, SO 2 , NO 2 and PM 10 The degree of influence in air pollution in different places may not be exactly the same

Therefore, the above empirical formula has certain limitations and is not suitable for areas with large differences in air pollution.

And the theoretical salt density value calculated by the above empirical formula is not fine enough in the time domain (it is not accurate to the unit of day)

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