CN105574773A - Method for determining pollution grade change of power grid theory - Google Patents

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

A kind of method determining the theoretical gradation for surface pollution change of electrical network

Technical field:

The present invention relates to the method determining the theoretical gradation for surface pollution change of electrical network, more specifically relate to one and utilize PM _2.5the method of the theoretical gradation for surface pollution change of electrical network is determined in real time etc. atmospheric environmental parameters.

Background technology:

In recent years along with the fast development of economy, pollution is on the rise, although multiple anti-pollution measure is used, in electric system, insulator contamination accident still happens occasionally, the reliability service of serious threat electric system.At the large area pollution flashover of the generation in North, Northeast China etc. in February calendar year 2001 area, there is high humility and continue the feature such as thick fog, quality of air environment difference.According to the environmental monitoring data on the ground such as Henan, Hebei, Shenyang, in the pollution flashover period of right time, all there is peak value in air ambient pollution level.

Due to atmosphere pollution and the close value of insulator surface salt closely related, more domestic research institutions give the experimental formula between the close value of theoretical salt and air quality index, making the wet quantification of typical case's dirt in electrical network filthy grade classification foundation, judging that for utilizing atmospheric environmental parameters local electrical network gradation for surface pollution has certain directive significance.

Atmosphere quality parameter comprises SO ₂concentration, NO ₂concentration, inspirable particle concentration.Pellet, is also called PM ₁₀, refer to the particle of particle diameter below 10 microns.Pertinent literature (long cherished ambition one, Yang Yuanlong, Liu Geli, etc. the atmospheric pollution of agricultural district of China and the division [J] of power transmission and transformation equipment filth grade. China Power, 1997,30 (12): 3-6.; Wang Sheng, Wang Meng, Zhu Gengfu. the research [J] of coastal atmospheric quality indices and power equipment pollution flashover relation. east china electric power, 2007,35 (9): 45-46.) in the experimental formula that provides as follows:

$P=\sqrt{(\frac{U_{{\mathrm{SO}}_2}}{B_{{\mathrm{SO}}_2}}\×\frac{1}{3}\×(\frac{U_{{\mathrm{SO}}_2}}{B_{{\mathrm{SO}}_2}}+\frac{U_{{\mathrm{NO}}_2}}{B_{{\mathrm{NO}}_2}}+\frac{U_{{\mathrm{PM}}_{10}}}{B_{{\mathrm{PM}}_{10}}}))}---\left(1\right)$

ESDD＝-0.015+0.0806×P(2)

In formula (1), ESDD is the close value of theory calculate salt, and P is the air quality index describing power grid pollution district pollution flashover feature; U is each pollutant measured concentration; B is pollutant evaluation criterion value, chooses according to the regulation in standard GB/T 3095-1996 " ambient air quality ".

Above experimental formula is by SO ₂as Air Pollutants, but the atmosphere pollution of each department there is some difference property, SO ₂, NO ₂and PM ₁₀influence degree in the atmospheric pollution of various places may be incomplete same.Therefore above experimental formula has certain limitation, is not suitable for the area that atmospheric pollution exists larger difference.And the close value of theoretical salt meticulous not in time domain (not being accurate in units of sky) that above experimental formula calculates.

The invention provides a kind of method determining the theoretical gradation for surface pollution change of electrical network, to solve the problem.

Summary of the invention:

The object of this invention is to provide a kind of method determining the theoretical gradation for surface pollution change of electrical network, on-the-spot salt density test cannot carried out or the area of filthy monitoring device be not installed, the method can be utilized to calculate the close value of theoretical salt of this area fast in real time, as one of reference value that this area's gradation for surface pollution divides.

For achieving the above object, the present invention is by the following technical solutions: a kind of method determining the theoretical gradation for surface pollution change of electrical network, said method comprising the steps of:

(1) the air quality index P of power grid pollution district pollution flashover feature is determined;

(2) the close value ESDD of theory calculate salt is determined;

(3) the theoretical gradation for surface pollution situation of change of electrical network is calculated in real time.

A kind of method determining the theoretical gradation for surface pollution change of electrical network provided by the invention, the air quality index in described step (1) is determined by following formula:

$P=\sqrt{(\frac{U_K}{B_K}\×\frac{1}{4}\×(\frac{U_{{\mathrm{SO}}_2}}{B_{{\mathrm{SO}}_2}}+\frac{U_{{\mathrm{NO}}_2}}{B_{{\mathrm{NO}}_2}}+\frac{U_{{\mathrm{PM}}_{10}}}{B_{{\mathrm{PM}}_{10}}}+\frac{U_{{\mathrm{PM}}_{2.5}}}{B_{{\mathrm{PM}}_{2.5}}}))}$

Wherein, U is each pollutant Real-Time Monitoring every day concentration, and B is pollutant evaluation criterion value, PM ₁₀, PM _2.5, NO ₂and SO ₂for atmosphere pollution, for primary pollutant item.

A kind of method determining the theoretical gradation for surface pollution change of electrical network provided by the invention, described in for with in any one.

Another a kind of preferred method determining the theoretical gradation for surface pollution change of electrical network provided by the invention, described in announce air primary pollutant every day according to environmental administration to be defined as or

An a kind of preferred method determining the theoretical gradation for surface pollution change of electrical network more provided by the invention, described PM ₁₀, PM _2.5, NO ₂and SO ₂real-Time Monitoring concentration every day obtain according to the Real-time Monitoring Data inquiry of announcing environmental protection department every day.

Another a kind of preferably method determining the theoretical gradation for surface pollution change of electrical network provided by the invention, described PM ₁₀, PM _2.5, NO ₂and SO ₂real-Time Monitoring concentration every day be environmentally protect department to measure according to the method in GB3095-2012 " ambient air quality ".

Another a kind of preferably method determining the theoretical gradation for surface pollution change of electrical network provided by the invention, pollutant evaluation criterion value is chosen according to the regulation in standard GB/T 3095-2012 " ambient air quality ".

Another a kind of preferably method determining the theoretical gradation for surface pollution change of electrical network provided by the invention, the close value ESDD of theory calculate salt in described step (2) is determined by following formula:

ESDD＝-0.015+0.0806×P

Wherein, P is the air quality index of power grid pollution district pollution flashover feature.

Another a kind of preferably method determining the theoretical gradation for surface pollution change of electrical network provided by the invention, the theoretical electrical network gradation for surface pollution that described theory calculate salt close value ESDD is corresponding, calculates the theoretical gradation for surface pollution situation of change of electrical network in real time.

Another a kind of preferably method determining the theoretical gradation for surface pollution change of electrical network provided by the invention, as described ESDD<0.03, described theoretical electrical network gradation for surface pollution is a;

As described 0.03<ESDD<0.06, described theoretical electrical network gradation for surface pollution is b;

As described 0.06<ESDD<0.1, described theoretical electrical network gradation for surface pollution is c;

As described 0.1<ESDD<0.25, described theoretical electrical network gradation for surface pollution is d;

As described ESDD>0.25, described theoretical electrical network gradation for surface pollution is e.

With immediate prior art ratio, the invention provides technical scheme and there is following excellent effect

1, the present invention considers the atmosphere pollution of each department there is some difference property, SO ₂, NO ₂and PM ₁₀influence degree in the atmospheric pollution of various places can be incomplete same, gives to some scientific research institutions the discriminant amendment that the experimental formula between the close value of salt and air quality index proposes;

2, the present invention is carrying out on-the-spot salt density test or not install the area of filthy monitoring device, and the method can be utilized to calculate the close value of theoretical salt of this area fast in real time, as one of reference value that this area's gradation for surface pollution divides;

3, the present invention set up and comprises PM _2.5at interior atmospheric environmental parameters independent entry, propose independent entry choosing method and principle;

4, the present invention is applied widely, and accuracy is high;

5, for utilizing atmospheric environmental parameters to judge, local electrical network gradation for surface pollution has certain directive significance in the present invention.

Accompanying drawing explanation

Fig. 1 is the inventive method process flow diagram.

Embodiment

Below in conjunction with embodiment, the invention will be described in further detail.

Embodiment 1:

As shown in Figure 1, a kind of method determining the theoretical gradation for surface pollution change of electrical network of the invention of this example, said method comprising the steps of:

(1) the air quality index P of power grid pollution district pollution flashover feature is determined;

(2) the close value ESDD of theory calculate salt is determined;

(3) the theoretical gradation for surface pollution situation of change of electrical network is calculated in real time.

Air quality index in described step (1) is determined by following formula:

$P=\sqrt{(\frac{U_K}{B_K}\&times;\frac{1}{4}\&times;(\frac{U_{{\mathrm{SO}}_2}}{B_{{\mathrm{SO}}_2}}+\frac{U_{{\mathrm{NO}}_2}}{B_{{\mathrm{NO}}_2}}+\frac{U_{{\mathrm{PM}}_{10}}}{B_{{\mathrm{PM}}_{10}}}+\frac{U_{{\mathrm{PM}}_{2.5}}}{B_{{\mathrm{PM}}_{2.5}}}))}$

Wherein, U is each pollutant Real-Time Monitoring every day concentration, and B is pollutant evaluation criterion value, PM ₁₀, PM _2.5, NO ₂and SO ₂for atmosphere pollution, for primary pollutant item.

Described for with in any one.

Described announce air primary pollutant every day according to environmental administration to be defined as or $\frac{U_{{\mathrm{NO}}_2}}{B_{{\mathrm{NO}}_2}}.$

Described PM ₁₀, PM _2.5, NO ₂and SO ₂real-Time Monitoring concentration every day obtain according to the Real-time Monitoring Data inquiry of announcing environmental protection department every day.

Described PM ₁₀, PM _2.5, NO ₂and SO ₂real-Time Monitoring concentration every day be environmentally protect department to measure according to the method in GB3095-2012 " ambient air quality ".

Pollutant evaluation criterion value is chosen according to the regulation in standard GB/T 3095-2012 " ambient air quality ".

The close value ESDD of theory calculate salt in described step (2) is determined by following formula:

ESDD＝-0.015+0.0806×P

Wherein, P is the air quality index of power grid pollution district pollution flashover feature.

The theoretical electrical network gradation for surface pollution that described theory calculate salt close value ESDD is corresponding, calculates the theoretical gradation for surface pollution situation of change of electrical network, in real time as table 1.

Table 1

ESDD scope	Corresponding electrical network gradation for surface pollution
		ESDD<0.03	a
0.03<ESDD<0.06	b
		0.06<ESDD<0.1	c
0.1<ESDD<0.25	d
		ESDD>0.25	e

Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; although those of ordinary skill in the field are to be understood that with reference to above-described embodiment: still can modify to the specific embodiment of the present invention or equivalent replacement; these do not depart from any amendment of spirit and scope of the invention or equivalent replacement, are all applying within the claims of the present invention awaited the reply.

Claims (10)

1. determine a method for the theoretical gradation for surface pollution change of electrical network, it is characterized in that: said method comprising the steps of:

(1) the air quality index P of power grid pollution district pollution flashover feature is determined;

(2) the close value ESDD of theory calculate salt is determined;

(3) the theoretical gradation for surface pollution situation of change of electrical network is calculated in real time.

2. a kind of method determining the theoretical gradation for surface pollution change of electrical network as claimed in claim 1, is characterized in that: the air quality index in described step (1) is determined by following formula:

$P=\sqrt{(\frac{U_K}{B_K}\&times;\frac{1}{4}\&times;(\frac{U_{S{O}_2}}{B_{S{O}_2}}+\frac{U_{N{O}_2}}{U_{N{O}_2}}+\frac{I_{P{M}_{10}}}{B_{P{M}_{10}}}+\frac{U_{{\mathrm{PM}}_{2.5}}}{B_{P{M}_{2.5}}}))}$

Wherein, U is each pollutant Real-Time Monitoring every day concentration, and B is pollutant evaluation criterion value, PM ₁₀, PM _2.5, NO ₂and SO ₂for atmosphere pollution, for primary pollutant item.

3. a kind of method determining the theoretical gradation for surface pollution change of electrical network as claimed in claim 2, is characterized in that: described in for with in any one.

4. a kind of method determining the theoretical gradation for surface pollution change of electrical network as claimed in claim 3, is characterized in that: described in announce air primary pollutant every day according to environmental administration to be defined as or

5. a kind of method determining the theoretical gradation for surface pollution change of electrical network as claimed in claim 4, is characterized in that: described PM ₁₀, PM _2.5, NO ₂and SO ₂real-Time Monitoring concentration every day obtain according to the Real-time Monitoring Data inquiry of announcing environmental protection department every day.

6. a kind of method determining the theoretical gradation for surface pollution change of electrical network as claimed in claim 5, is characterized in that: described PM ₁₀, PM _2.5, NO ₂and SO ₂real-Time Monitoring concentration every day be environmentally protect department to measure according to the method in GB3095-2012 " ambient air quality ".

7. a kind of method determining the theoretical gradation for surface pollution change of electrical network as claimed in claim 6, is characterized in that: pollutant evaluation criterion value is chosen according to the regulation in standard GB/T 3095-2012 " ambient air quality ".

8. a kind of method determining the theoretical gradation for surface pollution change of electrical network as claimed in claim 1, is characterized in that: the close value ESDD of theory calculate salt in described step (2) is determined by following formula:

ESDD＝-0.015+0.0806×P

Wherein, P is the air quality index of power grid pollution district pollution flashover feature.

9. a kind of method determining the theoretical gradation for surface pollution change of electrical network as claimed in claim 8, is characterized in that: the theoretical electrical network gradation for surface pollution that the close value ESDD of described theory calculate salt is corresponding, calculates electrical network theory gradation for surface pollution situation of change in real time.

10. a kind of method determining the theoretical gradation for surface pollution change of electrical network as claimed in claim 9, it is characterized in that: as described ESDD<0.03, described theoretical electrical network gradation for surface pollution is a;

As described 0.03<ESDD<0.06, described theoretical electrical network gradation for surface pollution is b;

As described 0.06<ESDD<0.1, described theoretical electrical network gradation for surface pollution is c;

As described 0.1<ESDD<0.25, described theoretical electrical network gradation for surface pollution is d;

As described ESDD>0.25, described theoretical electrical network gradation for surface pollution is e.