CN105787651A - Regional power grid source-side pollutant and carbon discharge level evaluation method - Google Patents

Abstract

The invention relates to a regional power grid source-side pollutant and carbon discharge level evaluation method. An environment treatment cost of pollutants and carbon discharge of an electric quantity per unit at the power source side of a regional power grid is obtained by use of online monitoring data of such power plant pollutants as SO2, NOX, dust and CO2 which are discharged by fire coal, combustion gas and the like of a regional power grid scheduling center SCADA system database, an online electric quantity of each power source in the regional power grid and a cross-regional pure purchased electric quantity by taking environment values of such pollutants as the SO2, the NOX, the CO2, the dust and the like as weights, and a regional power grid source-side power green index is calculated by use of such a result. According to the invention, the pollutant treatment cost of the electric quantity per unit of the regional power grid, with economic significance, and the source-side power green index measuring source-side pollutant and carbon discharge level of the regional power grid are obtained, and evaluation of the source-side pollutant and carbon discharge level of the regional power grid at different space time is realized.

Description

A kind of regional power grid mains side pollutant and carbon emission level evaluation method

Technical field

The invention belongs to electrical engineering technical field, relate to a kind of can the method for quantization areas electric network source side electric power clean-up performance, especially a kind of regional power grid mains side pollutant and carbon emission level evaluation method.

Background technology

Power industry, as domestic concentration discharge " carbon source " maximum at present, is also maximum pollutant emission source simultaneously.Reduce regional power grid mains side pollutant and carbon emission means mainly include two aspects: one is utilize the terminal that advanced technology carries out pollutant emission to administer；Two is to carry forward vigorously the generations of electricity by new energy such as water energy, wind energy, solar energy, carries out Energy restructuring.Existing mains side checking system is evaluated mainly for coal-burning power plant's energy consumption and pollutant emission level, can not the improvement of energy resource structure that brings of the development of quantization areas electrical network regenerative resource preferably, also can not reflect the green level of the overall pollutant emission level of mains side and unit quantity of electricity.The present invention proposes the method for quantization areas electric network source side pollutant and carbon emission level, it is proposed that build the construction method of regional power grid mains side electric power green color index.

Summary of the invention

It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of can quantization areas electric network source side is overall preferably pollutant emission level, regional power grid mains side pollutant that reflection Renewable Energy Development brings energy resource structure to improve and carbon emission assessment of levels method, the regional power grid mains side electric power green color index computation model that the method draws, has quantified the concept that regional power grid mains side electric power is green.

To achieve these goals, the technical solution adopted in the present invention is as follows:

A kind of regional power grid mains side pollutant and carbon emission level evaluation method, step is as follows:

Utilize the power plant pollution thing discharge SO such as the fire coal of regional power grid control centre SCADA system data base, combustion gas₂、NO_X, dust and CO₂Online monitoring data, the electricity volume of each power supply and trans-regional pure buy electricity in regional power grid, with SO₂、NOX、CO₂, dust pollution thing environmental value as weight, obtain the pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost of carbon emission, utilize this result to calculate regional power grid mains side electric power green color index.

And, specifically comprise the following steps that

(1) utilize the power plant pollution thing discharge SO such as the fire coal of regional power grid control centre SCADA system data base, combustion gas₂、NO_X, dust and CO₂Online monitoring data, the electricity volume kWh of each power supply and transregional pure buy electricity kWh in regional power grid, with SO₂、NO_X、CO₂And the environmental value unit/kg of dust pollution thing is as weight, obtain the pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost model of carbon emission, utilize the result of this model to calculate regional power grid mains side electric power green color index；

Wherein, the described pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost model of carbon emission include:

Utilize the unit quantity of electricity environmental improvement cost of reference atmosphere treatment cost and environmental improvement cost calculation different periods；

Wherein, regional power grid mains side unit quantity of electricity environmental improvement cost, reference value fetching determines the pollution average environment treatment cost in time, i.e. CE_{_ benchmark}The regional power grid mains side unit quantity of electricity average environment treatment cost in=appointment time；

Unit quantity of electricity environmental improvement cost based on the discharge capacity of each pollutant of different periods and environmental improvement cost calculation different periods；

Regional power grid mains side unit quantity of electricity environmental improvement cost calculation model is:

In formula,ω_{Dust _ i, t}For the weight discharged pollutants.

Using the environmental value of various pollutant as its weight in above-mentioned formula.

Wherein, the result utilizing environmental improvement cost model calculates the computational methods of regional power grid mains side electric power green color index:

Regional power grid mains side electric power green color index computation model is:

Wherein CE_{_ benchmark}For electric network source side, zoning unit quantity of electricity environmental improvement cost, reference value fetching determines the pollution average environment treatment cost in time, i.e. CE_{_ benchmark}The regional power grid mains side unit quantity of electricity average environment treatment cost in=appointment time.

And, in described regional power grid, the electricity volume of each power supply is that the electricity volume of all power supplys in evaluation time inner region electrical network adds transregional pure electricity of buying, and computing formula is as follows:

And, described regional power grid mains side electric power green color index can evaluate regional power grid mains side pollutant and the carbon emission level of different space-time, and the step of evaluation is as follows:

1. the discharge capacity of certain pollutant of power plant such as single fire coal, combustion gas in Calculation Estimation period Δ T

With SO₂For example, SO in certain power plant's sampling time interval Δ t time₂Discharge capacity be

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}t}=S{\∫}_t^{t+\mathrm{\Δ}t}{p}_{{\mathrm{SO}}_2}\left(t\right)\·v\left(t\right)d\left(t\right)$

A certain power plant evaluates period Δ T=t₂-t₁SO in time₂Discharge capacity be

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}=S{\∫}_{t_1}^{t_2}{p}_{{\mathrm{SO}}_2}\left(t\right)\·v\left(t\right)d\left(t\right)$

After sliding-model control,

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{SO}}_2}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}^{\′}=P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}\×{10}^6$

Wherein For SO in a certain power plant Δ T period₂Discharge capacity, unit: mg,Unit is kg.

Same method can evaluate single power plant NO in period Δ T_X、CO₂, dust discharge amount computing formula:

$P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{NO}}_X}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}^{\′}=P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}\×{10}^6$

$P_{{\mathrm{CO}}_2\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{CO}}_2}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{CO}}_2-\mathrm{\Δ}T}^{\′}=P_{{\mathrm{CO}}_2\_\mathrm{\Δ}T}\×{10}^6$

2. the gross contamination emission of the power plant such as fire coal, combustion gas in the electrical network of zoning

The calculating of regional power grid a certain period each pollutant total release

${\mathrm{PE}}_{{\mathrm{SO}}_2\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{SO}}_2\_i,j,t}{\mathrm{PE}}_{{\mathrm{NO}}_X\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{NO}}_X\_i,j,t}$

${\mathrm{PE}}_{{\mathrm{SO}}_2\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{CO}}_2\_i,j,t},$

WhereinP_{Dust _ i, j, t}For the SO in the regional power grid i period jth platform unit t time₂、NO_X、CO₂, dust emission total amount.

3. the acquisition of the environmental value of each pollutant

The environmental value of each pollutant obtains by searching related data, and wherein the environmental value of each pollutant is: SO₂Be 6 yuan/kg, NOx be 8 yuan/kg, CO₂Being 0.023 yuan/kg, dust is 2.2 yuan/kg.

Advantages of the present invention and having the benefit effect that

1, a kind of regional power grid mains side pollutant that the inventive method draws and carbon emission level evaluation method, obtain the pollutant control cost of the regional power grid unit quantity of electricity with economics meaning and weigh the mains side electric power green color index of regional power grid mains side pollutant and carbon emission level, achieve the regional power grid mains side pollutant of different space-time and the evaluation of carbon emission level, as relevant departments, regional power grid mains side is exercised supervision and the important indicator managed, guide, excitation power industry carries out emission reduction work, carry out distributing rationally of resource, the transition of energy mix for power generation；Be conducive to building the propelling of green network engineering, enforcement carbon emission evaluation and price difference sharing are had more practical value.

2, the electric power green color index computation model based on regional power grid mains side that the inventive method obtains, it is possible to demonstrate the same environmental improvement cost being evaluated unit (all kinds of power supplys, each power plant, regional electrical network) different time sections and electric power green color index curve chart；Difference can be demonstrated and be evaluated environmental improvement cost and the electric power green color index curve chart of unit (between all kinds of power supplys, between each power plant, between regional electrical network) same period.The available electric power green color index of relevant departments carries out the supervision of emission reduction effect to being evaluated unit, wherein, being evaluated unit can be different regional power grid, it can also be the different periods of the same area electrical network, each evaluation unit is therefore, it is possible to correctly recognize the gap with efficiency advanced person's electric power enterprise, specify Emission Reduction Potential, direction and emphasis, promote the development of green network engineering, it is simple to electric power enterprise is set up scientifically, effectively reduced discharging and greenness management system.

Accompanying drawing explanation

Fig. 1 is the flow chart of regional power grid mains side pollutant of the present invention and carbon emission level evaluation method.

Detailed description of the invention

Below in conjunction with embodiment, the present invention is further described；Following embodiment is illustrative, is not determinate, it is impossible to limit protection scope of the present invention with following embodiment.

A kind of regional power grid mains side pollutant and carbon emission level evaluation method, to specify the average environment treatment cost of time regional power grid mains side as benchmark, and calculate the unit quantity of electricity environmental improvement cost of certain i regional power grid mains side yardstick sometime, wherein environmental improvement cost mainly considers that pollutant are the atmosphere pollution paid close attention at present, i.e. SO₂、NO_X、CO₂And dust, the data obtained are updated in regional power grid mains side electric power green color index computation model, wherein, unit quantity of electricity environmental improvement cost is to utilize the environmental value producing pollutant that electric energy discharges and various pollutant under yardstick sometime to calculate to obtain.

Utilize the power plant pollution thing discharge SO such as the fire coal of regional power grid control centre SCADA system data base, combustion gas₂、NO_X, and dust and CO₂Online monitoring data, the electricity volume of a power supply and transregional pure buy electricity in regional power grid, with SO₂、NO_X、CO₂And the environmental value of the pollutant such as dust is as weight, obtain the pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost model of carbon emission, the result utilizing this model calculates regional power grid mains side electric power green color index, present aspect obtains the pollutant control cost of the absolute magnitude regional power grid unit quantity of electricity with economics meaning and weighs the relative quantity mains side electric power green color index of regional power grid mains side pollutant and carbon emission level, it is achieved the regional power grid mains side pollutant of different space-times and carbon emission assessment of levels.

The present invention can utilize electrical network SCADA system to gather pollutant emission data and electricity volume data.Such as, electrical network SCADA system is computer-based dispatch automated system, and on-the-spot operational outfit can be realized the functions such as data acquisition, monitoring of tools and various types of signal warning by it.Data acquisition function is jointly to complete by being positioned at the master station computer system of dispatching of power netwoks control centre and remotely located power plant, the terminal RTU of transformer station and relevant information transfer channel.

Embodiment 1

Being calculated as example with regional power grid mains side electric power green color index below, the present invention is described in detail.The present invention utilizes the SCADA module of dispatching of power netwoks control centre to obtain electric power green color index and calculates desired data and it needs to process according to the following steps, as shown in Figure 1.

Step 1. utilizes the associated data interface of SCADA system data base to obtain the relevant service data of required system, related data carries out corresponding pretreatment and calculating, obtains the various parameters needed for unit quantity of electricity environmental improvement cost and green color index.Pollutant include SO₂、NO_x、CO₂, dust.

The power plant such as regional power grid interior fire coal, combustion gas report the pollutant levels that generating is discharged, and interval is Δ t, and unit is mg/m³, the discharge capacity of Δ t time internal contamination thing is obtained by the method for correlation values integration, unit is mg, then is converted into the kg pollutant discharge amount being statistical unit, and concrete processing method is as follows:

The frequency of pollutant monitoring is Δ t, t₁It is initial time, t₂It it is detection finish time；Pollutant emission flow velocity is v (t), and unit is m/s；The cross-sectional area of pollutant emission mouth is S, and unit is m², the frequency of energy-saving and emission-reduction evaluation is Δ T, it is assumed that t₁Also it is the initial time evaluated.Therefore the discharge capacity of Δ T period internal contamination thing can be obtained.

Illustrate for the Emission amount calculation of certain pollutant of a certain power plant:

1. the discharge capacity of certain pollutant of power plant such as single fire coal, combustion gas in Calculation Estimation period Δ T

With SO₂For example, SO in certain power plant's sampling time interval Δ t time₂Discharge capacity be

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}t}=S{\∫}_t^{t+\mathrm{\Δ}t}{p}_{{\mathrm{SO}}_2}\left(t\right)\·v\left(t\right)d\left(t\right)$

A certain power plant evaluates period Δ T=t₂-t₁SO in time₂Discharge capacity be

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}=S{\∫}_{t_1}^{t_2}{p}_{{\mathrm{SO}}_2}\left(t\right)\·v\left(t\right)d\left(t\right)$

After sliding-model control,

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{SO}}_2}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}^{\′}=P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}\×{10}^6$

Wherein For SO in a certain power plant Δ T period₂Discharge capacity (unit: mg),Unit is kg；

Same method can evaluate power plant NOX, CO such as single fire coal, combustion gas in period Δ T₂, dust discharge amount computing formula

$P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{NO}}_X}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}^{\′}=P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}\×{10}^6$

$P_{{\mathrm{CO}}_2\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{CO}}_2}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{CO}}_2-\mathrm{\Δ}T}^{\′}=P_{{\mathrm{CO}}_2\_\mathrm{\Δ}T}\×{10}^6$

2. the gross contamination emission of power plant in the electrical network of zoning

The calculating of regional power grid a certain period each pollutant total release

${\mathrm{PE}}_{{\mathrm{SO}}_2\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{SO}}_2\_i,j,t}{\mathrm{PE}}_{{\mathrm{NO}}_X\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{NO}}_X\_i,j,t}$

${\mathrm{PE}}_{{\mathrm{CO}}_2\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{CO}}_2\_i,j,t},$

WhereinP_{Dust _ i, j, t}For the SO in the regional power grid i period jth platform unit t time₂、NO_X、CO₂, dust emission total amount.

3. the acquisition of the environmental value of each pollutant

The environmental value of each pollutant obtains by searching related data, and wherein the environmental value of each pollutant is: SO₂Be 6 yuan/kg, NOx be 8 yuan/kg, CO₂Being 0.023 yuan/kg, dust is 2.2 yuan/kg.

4. the acquisition of the total electricity of regional power grid online

Evaluate total electricity of surfing the Net in the period to deduct card equal to the electricity volume sum of various power supplys in regional power grid remove output electricity plus transregional pure electricity of buying.

J=1,2 ..., m represents in regional power grid site in jth, k=1,2 ... and, n represents that the kth of regional power grid i is transregional and pure buys electrical nodes.

Step 2. unit of account electricity environmental improvement cost, including the environmental improvement cost of reference atmosphere treatment cost and different periods.

Environmental value and the pollution average environment treatment cost in appointment time, i.e. CE based on various pollutant_{_ benchmark}The regional power grid mains side unit quantity of electricity average environment treatment cost in=appointment time.

Unit quantity of electricity environmental improvement cost based on the discharge capacity of each pollutant of different periods and environmental improvement cost calculation different periods.

Regional power grid mains side unit quantity of electricity environmental improvement cost (thecostofpercentpowerenvironmentalgovernance, CE) computation model is:

In formula,ω_{Dust _ i, t}For the weight discharged pollutants.Using the environmental value of various pollutant as its weight in the present invention.

Electric network source side, step 3. zoning electric power green color index

It is updated in the electric power green color index model of regional power grid mains side according to the acquisition data that calculate above:

Regional power grid mains side unit quantity of electricity electric power green color index (Regionalpowergridgreenpowerindex, RPI) computation model is:

CE_{_ benchmark}For the unit quantity of electricity environmental improvement cost base value of electric network source side, zoning electric power green color index, CE_{_i,t}For regional power grid mains side unit quantity of electricity environmental improvement cost.In the present invention, reference value specifies the pollution average environment treatment cost in time, i.e. CE_{_ benchmark}The regional power grid mains side unit quantity of electricity average environment treatment cost in=appointment time.

Departments of government utilizes unit quantity of electricity electric power green color index that supervised unit carries out the evaluation of emission reduction effect, wherein, supervised unit can be different power plant, different regional power grids, it is also possible to is the different periods of the different periods of same power plant, the same area electrical network.Each evaluate unit therefore, it is possible to correct understanding and the gap of efficiency advanced person's electric power enterprise, specify Emission Reduction Potential, direction and emphasis, promote the development of green network engineering, it is simple to electric power enterprise sets up scientifically, carbon emission and pollutant emission appraisement system effectively.

Embodiment 2

A kind of regional power grid mains side pollutant and carbon emission level evaluation method, step is as follows:

Utilize the power plant pollution thing discharge SO such as the fire coal of regional power grid control centre SCADA system data base, combustion gas₂、NO_X, dust and CO₂Online monitoring data, the electricity volume of each power supply and trans-regional pure buy electricity in regional power grid, with SO₂、NOX、CO₂, dust pollution thing environmental value as weight, obtain the pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost of carbon emission, utilize this result to calculate regional power grid mains side electric power green color index.

More preferably, specifically comprise the following steps that

(1) utilize the thermal power plant pollutant emission SO of regional power grid control centre SCADA system data base₂, NOX, dust and CO₂Online monitoring data, the electricity volume kWh of each power supply and transregional pure buy electricity kWh in regional power grid, with SO₂、NOX、CO₂And the environmental value unit/kg of dust pollution thing is as weight, obtain the pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost model of carbon emission, utilize the result of this model to calculate regional power grid mains side electric power green color index；

Wherein, the described pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost model of carbon emission include:

The unit quantity of electricity environmental improvement cost of reference atmosphere treatment cost and environmental improvement cost calculation different periods.

Wherein, the regional power grid mains side unit quantity of electricity average environment treatment cost specifying the time is calculated as reference value based on the environmental value of various pollutant and the average discharge of the appointment time each pollutant of regional power grid mains side fired power generating unit, i.e. CE_{_ benchmark}The regional power grid mains side unit quantity of electricity average environment treatment cost in=appointment time.

Unit quantity of electricity environmental improvement cost based on the discharge capacity of each pollutant of different periods and environmental improvement cost calculation different periods.

Regional power grid mains side unit quantity of electricity environmental improvement cost calculation model is:

In formula,ω_{Dust _ i, t}For the weight discharged pollutants.

Using the environmental value of various pollutant as its weight in above-mentioned formula；

Wherein, the result utilizing environmental improvement cost model calculates the computational methods of regional power grid mains side electric power green color index:

Regional power grid mains side electric power green color index computation model is:

Wherein CE_{_ benchmark}For the unit quantity of electricity environmental improvement cost base value of electric network source side, zoning electric power green color index, CE_{_i,t}For regional power grid mains side unit quantity of electricity environmental improvement cost, reference value takes regional power grid mains side unit quantity of electricity average environment treatment cost, i.e. CE_{_ benchmark}The regional power grid mains side unit quantity of electricity average environment treatment cost in=appointment time.

More preferably, in described regional power grid, the electricity volume of each power supply is that the electricity volume of all power supplys in evaluation time inner region electrical network adds transregional pure electricity of buying and deducts transregional output electricity, and computing formula is as follows:

More preferably, described regional power grid mains side electric power green color index can evaluate regional power grid mains side pollutant and the carbon emission level of different space-time, and the step of evaluation is as follows:

1. the discharge capacity of certain pollutant of power plant such as single fire coal, combustion gas in Calculation Estimation period Δ T

With SO₂For example, SO in certain power plant's sampling time interval Δ t time₂Discharge capacity be

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}t}=S{\∫}_t^{t+\mathrm{\Δ}t}{p}_{{\mathrm{SO}}_2}\left(t\right)\·v\left(t\right)d\left(t\right)$

A certain power plant evaluates period Δ T=t₂-t₁SO in time₂Discharge capacity be

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}=S{\∫}_{t_1}^{t_2}{p}_{{\mathrm{SO}}_2}\left(t\right)\·v\left(t\right)d\left(t\right)$

After sliding-model control,

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{SO}}_2}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{SO}}_2-\mathrm{\Δ}T}^{\′}=P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}\×{10}^6$

Wherein For SO in a certain power plant Δ T period₂Discharge capacity, unit: mg,Unit is kg.

Same method can evaluate the power plant NO such as single fire coal, combustion gas in period Δ T_X、CO₂, dust discharge amount computing formula:

$P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{NO}}_X}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}^{\′}=P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}\×{10}^6$

$P_{{\mathrm{CO}}_2\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{CO}}_2}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{CO}}_2-\mathrm{\Δ}T}^{\′}=P_{{\mathrm{CO}}_2\_\mathrm{\Δ}T}\×{10}^6$

2. the gross contamination emission of power plant in the electrical network of zoning

The calculating of regional power grid a certain period each pollutant total release

${\mathrm{PE}}_{{\mathrm{SO}}_2\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{SO}}_2\_i,j,t},{\mathrm{PE}}_{{\mathrm{NO}}_X\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{NO}}_X\_i,j,t}$

${\mathrm{PE}}_{{\mathrm{CO}}_2\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{CO}}_2\_i,j,t},$

WhereinP_{Dust _ i, j, t}For the SO in the regional power grid i period jth platform unit t time₂、NO_X、CO₂, dust emission total amount.

3. the acquisition of the environmental value of each pollutant

The environmental value of each pollutant obtains by searching related data, and wherein the environmental value of each pollutant is: SO₂Be 6 yuan/kg, NOx be 8 yuan/kg, CO₂Being 0.023 yuan/kg, dust is 2.2 yuan/kg.

It is emphasized that; embodiment of the present invention is illustrative; rather than it is determinate; therefore the present invention includes the embodiment that is not limited to described in detailed description of the invention; every other embodiments drawn according to technical scheme by those skilled in the art, also belong to the scope of protection of the invention.

Claims (4)

1. regional power grid mains side pollutant and carbon emission level evaluation method, it is characterised in that:

Utilize the power plant pollution thing discharge SO such as the fire coal of regional power grid control centre SCADA system data base, combustion gas₂、NO_X, dust and CO₂Online monitoring data, the electricity volume of each power supply and trans-regional pure buy electricity in regional power grid, with SO₂、NO_X、CO₂, dust pollution thing environmental value as weight, obtain the pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost of carbon emission, utilize this result to calculate regional power grid mains side electric power green color index.

2. regional power grid mains side pollutant according to claim 1 and carbon emission level evaluation method, it is characterised in that: specifically comprise the following steps that

(1) utilize the power plant pollution thing discharge SO such as the fire coal of regional power grid control centre SCADA system data base, combustion gas₂、NO_X, dust and CO₂Online monitoring data, the electricity volume kWh of each power supply and transregional pure buy electricity kWh in regional power grid, with SO₂、NO_X、CO₂And the environmental value unit/kg of dust pollution thing is as weight, obtain the pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost model of carbon emission, utilize the result of this model to calculate regional power grid mains side electric power green color index.

Wherein, the described pollutant of regional power grid mains side unit quantity of electricity and the environmental improvement cost model of carbon emission include:

The unit quantity of electricity environmental improvement cost of reference atmosphere treatment cost and environmental improvement cost calculation different periods；

Wherein, the regional power grid mains side unit quantity of electricity average environment treatment cost specifying the time is calculated as reference value based on the environmental value of various pollutant and the average discharge of the appointment time each pollutant of regional power grid mains side fired power generating unit, i.e. CE_{_ benchmark}The regional power grid mains side unit quantity of electricity average environment treatment cost in=appointment time；

Unit quantity of electricity environmental improvement cost based on the discharge capacity of each pollutant of different periods and environmental improvement cost calculation different periods.

Regional power grid mains side unit quantity of electricity environmental improvement cost calculation model is:

In formula,ω_{Dust _ i, t}For the weight discharged pollutants；

Using the environmental value of various pollutant as its weight in above-mentioned formula；

Wherein, the result utilizing environmental improvement cost model calculates the computational methods of regional power grid mains side electric power green color index:

Wherein CE_{_ benchmark}For the unit quantity of electricity environmental improvement cost base value of electric network source side, zoning electric power green color index, CE_{_i,t}For regional power grid mains side unit quantity of electricity environmental improvement cost, reference value fetching determines the pollution average environment treatment cost in time, i.e. CE_{_ benchmark}The regional power grid mains side unit quantity of electricity average environment treatment cost in=appointment time.

3. regional power grid mains side pollutant according to claim 1 and 2 and carbon emission level evaluation method, it is characterized in that: in described regional power grid, the electricity volume of each power supply is that the electricity volume of all power supplys in evaluation time inner region electrical network adds transregional pure electricity of buying, and computing formula is as follows:

4. regional power grid mains side pollutant according to claim 1 and 2 and carbon emission level evaluation method, it is characterized in that: described regional power grid mains side electric power green color index can evaluate regional power grid mains side pollutant and the carbon emission level of different space-time, and the step of evaluation is as follows:

1. the discharge capacity of certain pollutant of power plant such as single fire coal, combustion gas in Calculation Estimation period Δ T

With SO₂For example, SO in certain power plant's sampling time interval Δ t time₂Discharge capacity be

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}t}=S{\∫}_t^{t+\mathrm{\Δ}t}{p}_{{\mathrm{SO}}_2}\left(t\right)\·v\left(t\right)d\left(t\right)$

A certain power plant evaluates period Δ T=t₂-t₁SO in time₂Discharge capacity be

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}=S{\∫}_{t_1}^{t_2}{p}_{{\mathrm{SO}}_2}\left(t\right)\·v\left(t\right)d\left(t\right)$

After sliding-model control,

$P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{SO}}_2}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}^{\′}=P_{{\mathrm{SO}}_2\_\mathrm{\Δ}T}\×{10}^6$

Wherein For SO in a certain power plant Δ T period₂Discharge capacity, unit: mg,Unit is kg.

Same method can evaluate single power plant NO in period Δ T_X、CO₂, dust discharge amount computing formula:

$P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{NO}}_X}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}^{\′}=P_{{\mathrm{NO}}_X\_\mathrm{\Δ}T}\×{10}^6$

$P_{{\mathrm{CO}}_2\_\mathrm{\Δ}T}=S\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{p}_{{\mathrm{CO}}_2}\left(t_i\right)\·v\left(t_i\right){\mathrm{\Δt}}_i,P_{{\mathrm{CO}}_2\_\mathrm{\Δ}T}^{\′}=P_{{\mathrm{CO}}_2\_\mathrm{\Δ}T}\×{10}^6$

P′_{Dust _ Δ T}=P_{Dust _ Δ T}×10⁶

2. the gross contamination emission of the power plant such as fire coal, combustion gas in the electrical network of zoning

The calculating of regional power grid a certain period each pollutant total release

${\mathrm{PE}}_{{\mathrm{SO}}_2\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{SO}}_2\_i,j,t},{\mathrm{PE}}_{{\mathrm{NO}}_X\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{NO}}_X\_i,j,t}$

${\mathrm{PE}}_{{\mathrm{CO}}_2\_i,t}=\underset{j=1}{\overset{m}{\mathrm{\Σ}}}{P}_{{\mathrm{CO}}_2\_i,j,t},$

WhereinP_{Dust _ i, j, t}For the SO in the regional power grid i period jth platform unit t time₂、NO_X、CO₂, dust emission total amount.

3. the acquisition of the environmental value of each pollutant

The environmental value of each pollutant obtains by searching related data, and wherein the environmental value of each pollutant is: SO₂Be 6 yuan/kg, NO_XBe 8 yuan/kg, CO₂Being 0.023 yuan/kg, dust is 2.2 yuan/kg.