CN105631527A - Method and system for obtaining peak-load regulation compensation cost of electric power system - Google Patents

Abstract

The present invention provides a method and a system for obtaining peak-load regulation compensation cost of an electric power system. The method comprises the steps of: obtaining real work data of the electric power system within a preset time; obtaining a peak-load regulation contribution rate of a power generation unit of the electric power system according to the real work data; obtaining peak-load regulation compensation cost of the power generation unit according to the peak-load regulation contribution rate; obtaining a peak-load regulation compensation standard of the power generation unit according to the peak-load regulation compensation cost; and outputting the peak-load regulation compensation cost and the peak-load regulation compensation standard. The method and the system provided by the invention quarterly divide and define peak and low ebb periods of power grid load according to characteristics of the power grid load, then obtain the peak-load regulation compensation cost of the electric power system, and establish a peak-load regulation electricity price compensation model facilitating wind power consumption; in addition, the method and the system optimize a peak-load regulation compensation mechanism, and provide technical support for making an electricity price compensation mechanism facilitating wind power consumption.

Description

The peak regulation reimbursement for expenses acquisition methods of a kind of power system and system

Technical field

The present invention relates to the peak regulation compensation mechanism of power system, particularly to peak regulation reimbursement for expenses acquisition methods and the system of a kind of power system.

Background technology

In prior art, the impact that system supplymentary is serviced after have studied wind power integration electrical network by research worker, analyze the relevant issues of assistant service management and compensation mechanism thereof on this basis, Reserve Ancillary Service compensation mechanism considers interruptible load, formulate the scheme that interruptible load is bidded jointly with regulating station, establish a set of AGC assisted hatching trade system for wind power integration system, analyze each regional power grid reactive-load compensation mechanism, it is proposed that for the reactive-load compensation mechanism of wind-powered electricity generation. But research peak regulation compensation mechanism is just for the compensation of normal power supplies peak regulation, wind-powered electricity generation is not abandoned wind and considers in compensation range, compensate also without the peak regulation that worry district's external power grid (interconnection) is promotion wind electricity digestion simultaneously.

Summary of the invention

The invention provides the peak regulation reimbursement for expenses acquisition methods of a kind of power system and system, its purpose is to obtain the peak regulation reimbursement for expenses of power system.

In order to achieve the above object, The embodiment provides the peak regulation reimbursement for expenses acquisition methods of a kind of power system, including:

Obtain power system field evidence in a Preset Time;

According to described field evidence, it is thus achieved that the peak regulation contribution rate of described power system generator unit;

According to described peak regulation contribution rate, it is thus achieved that the peak regulation reimbursement for expenses of described generator unit;

According to described peak regulation reimbursement for expenses, obtain the peak regulation compensation standard of described generator unit;

Export described peak regulation reimbursement for expenses and peak regulation compensation standard.

Wherein, the step obtaining power system field evidence in a Preset Time includes:

Obtain the Wind turbines of the described power system power load curve in a Preset Time, power supply processes curve and interconnection trade off curve; Or

Obtain the coal unit of the described power system power load curve in a Preset Time, generator unit daily output curve and generator unit daily generation.

Wherein, according to described field evidence, it is thus achieved that the step of the peak regulation contribution rate of described power system generator unit includes:

Process curve according to Wind turbines power load curve in a Preset Time, power supply and interconnection trade off curve obtains the peak regulation contribution rate of generator unit.

Wherein, process curve according to Wind turbines power load curve in a Preset Time, power supply and the step of peak regulation contribution rate that interconnection trade off curve obtains generator unit include:

Pass through formula:Obtain the peak regulation contribution rate of generator unit;

Wherein, �� r_iPeak regulation contribution rate for generator unit;For benchmark peak regulation rate; r_iPeak regulation rate for generator unit.

Further, process curve according to Wind turbines power load curve in a Preset Time, power supply and the step of peak regulation contribution rate that interconnection trade off curve obtains generator unit also include:

According to formula:

$\stackrel{\‾}{r}=\frac{P_{\mathrm{sv}}}{P_{\mathrm{sp}}};$ $r_i=\frac{P_{\mathrm{vi}}}{P_{\mathrm{pi}}}$

Wherein, P_spFor load peak period load meansigma methods, including the electric power that interconnection flows out; P_svFor load valley period load meansigma methods, including the electric power that interconnection flows out; P_piAverage output for load peak period generator unit; P_viAverage output for load valley period generator unit.

Wherein, described method also includes:

According to formula: F_i=�� r_i��P_i�� A obtains the peak regulation reimbursement for expenses that generator unit should obtain every day;

Wherein, F_iFor the peak regulation reimbursement for expenses that generator unit should obtain every day; P_iExert oneself for the powered interconnection maximum power transmission in the load peak period outside the generator unit EIAJ in the load peak period and district; A is that peak regulation range compensates unit price.

Wherein, described method also includes:

When the peak regulation contribution rate of generator unit is more than zero, described generator unit obtains peak regulation reimbursement for expenses;

When the peak regulation contribution rate of generator unit is less than zero, described generator unit expenditure peak regulation reimbursement for expenses.

Wherein, described method also includes:

When Wind turbines and interconnection the load peak period exert oneself be 0 time, then the peak regulation reimbursement for expenses of described generator unit expenditure is according to formula: F_i=P_i�� A obtains;

Wherein, P_iExert oneself for the powered interconnection maximum power transmission in the load peak period outside the generator unit EIAJ in the load peak period and district.

Wherein, according to described field evidence, it is thus achieved that the step that the step of the peak regulation contribution rate of described power system generator unit includes includes:

According to coal unit power load curve in a Preset Time, generator unit daily output curve and generator unit daily generation, obtain the peak regulation contribution rate of generator unit.

Wherein, according to described field evidence, it is thus achieved that the step that the step of the peak regulation contribution rate of described power system generator unit includes also includes:

According to formula: ${\mathrm{\Δt}}_i=\stackrel{\‾}{t}-t_i$

Wherein, �� t_iPeak regulation contribution rate for generator unit;For day benchmark generating hourage; t_iThe hourage that generates electricity day for generator unit.

Further, described coal unit pass through described in the step of the data that the collect peak regulation contribution rate that calculates described power system generator unit also include:

According to formula:

$\stackrel{\‾}{t}=\frac{Q_s}{P_p};$ $t_i=\frac{Q_{\mathrm{vi}}}{P_{\mathrm{pi}}}$

Wherein, P_pThe maximum of sum of exerting oneself for load peak period all generator units; Q_sFor all generator unit daily generations; P_piDay EIAJ for generator unit; Q_viDaily generation for generator unit.

Wherein, described method also includes:

According to formula: F_i'=�� t_i��P_i�� B obtains the peak regulation reimbursement for expenses that generator unit should obtain every day;

Wherein, F_i' the reimbursement for expenses of peaking generation hour change that should obtain for generator unit; P_iExert oneself for the powered interconnection maximum power transmission in the load peak period outside the generator unit EIAJ in the load peak period and district; B is peaking generation hourage compensating for variations unit price.

Wherein, described method also includes:

When the peak regulation contribution rate of generator unit is more than zero, described generator unit obtains the compensation that generating hourage reduces;

When the peak regulation contribution rate of generator unit is less than zero, the compensation that described generator unit expenditure generating hourage increases.

Embodiments of the invention additionally provide the peak regulation reimbursement for expenses of a kind of power system and obtain system, including:

First acquisition module, for obtaining power system field evidence in a Preset Time;

Second acquisition module, for according to described field evidence, it is thus achieved that the peak regulation contribution rate of described power system generator unit;

3rd acquisition module, for according to described peak regulation contribution rate, it is thus achieved that the peak regulation reimbursement for expenses of described generator unit;

Parsing module, according to described peak regulation reimbursement for expenses, obtains the peak regulation compensation standard of described generator unit;

Output module, exports described peak regulation reimbursement for expenses and peak regulation compensation standard.

Having the beneficial effect that of the such scheme of the present invention:

Network load peak, low-valley interval, according to network load characteristic, are carried out Definition of Division quarterly, obtain the peak regulation reimbursement for expenses of power system, establish the peak regulation valence compensation model promoting wind electricity digestion by method and system provided by the present invention; Optimize peak regulation compensation mechanism, for promoting that the formulation of wind electricity digestion valence compensation mechanism provides technical support.

Accompanying drawing explanation

Fig. 1 is the flow chart of the method for the invention;

Fig. 2 is the flow chart of the first embodiment of the method for the invention;

Fig. 3 is the flow chart of second embodiment of the method for the invention;

Fig. 4 is the structural representation of system of the present invention.

Detailed description of the invention

For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, it is described in detail below in conjunction with the accompanying drawings and the specific embodiments.

The problem that the present invention is directed to the peak regulation reimbursement for expenses of existing acquisition power system, it is provided that the peak regulation reimbursement for expenses acquisition methods of a kind of power system, including:

Step 11, obtains power system field evidence in a Preset Time;

Step 12, according to described field evidence, it is thus achieved that the peak regulation contribution rate of described power system generator unit;

Step 13, according to described peak regulation contribution rate, it is thus achieved that the peak regulation reimbursement for expenses of described generator unit;

Step 14, according to described peak regulation reimbursement for expenses, obtains the peak regulation compensation standard of described generator unit;

Step 15, exports described peak regulation reimbursement for expenses and peak regulation compensation standard.

Network load peak, low-valley interval, according to network load characteristic, are carried out Definition of Division quarterly, obtain the peak regulation reimbursement for expenses of power system, establish the peak regulation valence compensation model promoting wind electricity digestion by the method described in the above embodiment of the present invention; Optimize peak regulation compensation mechanism, for promoting that the formulation of wind electricity digestion valence compensation mechanism provides technical support.

As shown in Figure 2 and Figure 3, the step obtaining power system field evidence in a Preset Time includes:

Step 21, obtains the Wind turbines of the described power system power load curve in a Preset Time, power supply processes curve and interconnection trade off curve; Or

Step 31, obtains the coal unit of the described power system power load curve in a Preset Time, generator unit daily output curve and generator unit daily generation.

As in figure 2 it is shown, according to described field evidence, it is thus achieved that the step of the peak regulation contribution rate of described power system generator unit includes:

Step 22, processes curve according to Wind turbines power load curve in a Preset Time, power supply and interconnection trade off curve obtains the peak regulation contribution rate of generator unit.

Wherein, process curve according to Wind turbines power load curve in a Preset Time, power supply and the step of peak regulation contribution rate that interconnection trade off curve obtains generator unit include:

Pass through formula:Obtain the peak regulation contribution rate of generator unit;

Wherein, �� r_iPeak regulation contribution rate for generator unit;For benchmark peak regulation rate; r_iPeak regulation rate for generator unit.

Further, process curve according to Wind turbines power load curve in a Preset Time, power supply and the step of peak regulation contribution rate that interconnection trade off curve obtains generator unit also include:

According to formula:

$\stackrel{\‾}{r}=\frac{P_{\mathrm{sv}}}{P_{\mathrm{sp}}};$ $r_i=\frac{P_{\mathrm{vi}}}{P_{\mathrm{pi}}}$

Wherein, P_spFor load peak period load meansigma methods, including the electric power that interconnection flows out; P_svFor load valley period load meansigma methods, including the electric power that interconnection flows out; P_piAverage output for load peak period generator unit; P_viAverage output for load valley period generator unit.

As in figure 2 it is shown, described method also includes:

Step 23, according to formula: F_i=�� r_i��P_i�� A obtains the peak regulation reimbursement for expenses that generator unit should obtain every day;

Wherein, F_iFor the peak regulation reimbursement for expenses that generator unit should obtain every day; P_iExert oneself for the powered interconnection maximum power transmission in the load peak period outside the generator unit EIAJ in the load peak period and district; A is that peak regulation range compensates unit price.

Wherein, described method also includes:

When the peak regulation contribution rate of generator unit is more than zero, described generator unit obtains peak regulation reimbursement for expenses;

When the peak regulation contribution rate of generator unit is less than zero, described generator unit expenditure peak regulation reimbursement for expenses.

Wherein, described method also includes:

When Wind turbines and interconnection the load peak period exert oneself be 0 time, then the peak regulation reimbursement for expenses of described generator unit expenditure is according to formula: F_i=P_i�� A obtains;

Wherein, P_iExert oneself for the powered interconnection maximum power transmission in the load peak period outside the generator unit EIAJ in the load peak period and district.

The above embodiment of the present invention can obtain, according to described formula, the peak regulation reimbursement for expenses that generator unit should obtain every day, the peak regulation reimbursement for expenses F that electrical network should obtain according to generator unit every day_iCan obtain paying every day the compensation F of the generator unit that peak modulation capacity exceedes benchmark peak modulation capacity_+jFor:In formula, N is �� r on the same day_iUnit sum more than 0; According to the F obtained_+jValue, electrical network is paid the compensation F+ of the generator unit that peak modulation capacity exceedes benchmark peak modulation capacity every year and is:The compensation F that electrical network is collected from peak modulation capacity lower than the generator unit of benchmark peak modulation capacity every day_-jFor:In formula, M is �� r on the same day_iUnit sum less than 0; The compensation F-that electrical network is collected from peak modulation capacity lower than the generator unit of benchmark peak modulation capacity every year is

As it is shown on figure 3, according to described field evidence, it is thus achieved that the step that the step of the peak regulation contribution rate of described power system generator unit includes includes:

Step 32, according to coal unit power load curve in a Preset Time, generator unit daily output curve and generator unit daily generation, obtains the peak regulation contribution rate of generator unit.

Wherein, according to described field evidence, it is thus achieved that the step that the step of the peak regulation contribution rate of described power system generator unit includes also includes:

According to formula: ${\mathrm{\Δt}}_i=\stackrel{\‾}{t}-t_i$

Wherein, �� t_iPeak regulation contribution rate for generator unit;For day benchmark generating hourage; t_iThe hourage that generates electricity day for generator unit.

�� t described in the above embodiment of the present invention_iFor coal unit day generate electricity hour variable quantity, be by send out dot element day benchmark generating hourage and generator unit day generating hourage calculate, it is possible to be considered as the peak regulation contribution rate of generator unit.

Further, described coal unit pass through described in the step of the data that the collect peak regulation contribution rate that calculates described power system generator unit also include:

According to formula:

$\stackrel{\‾}{t}=\frac{Q_s}{P_p};$ $t_i=\frac{Q_{\mathrm{vi}}}{P_{\mathrm{pi}}}$

Wherein, P_pThe maximum of sum of exerting oneself for load peak period all generator units; Q_sFor all generator unit daily generations; P_piDay EIAJ for generator unit; Q_viDaily generation for generator unit.

As it is shown on figure 3, described method also includes:

Step 33, according to formula: F_i'=�� t_i��P_i�� B obtains the peak regulation reimbursement for expenses that generator unit should obtain every day;

Wherein, F_i' the reimbursement for expenses of peaking generation hour change that should obtain for generator unit; P_iExert oneself for the powered interconnection maximum power transmission in the load peak period outside the generator unit EIAJ in the load peak period and district; B is peaking generation hourage compensating for variations unit price.

Wherein, described method also includes:

When the peak regulation contribution rate of generator unit is more than zero, described generator unit obtains the compensation that generating hourage reduces;

When the peak regulation contribution rate of generator unit is less than zero, the compensation that described generator unit expenditure generating hourage increases.

Formula described in the above embodiment of the present invention can obtain the reimbursement for expenses F of the peaking generation hour change that generator unit should obtain_i', the reimbursement for expenses F of the peaking generation hour change that electrical network should obtain according to generator unit_i' obtain the compensation F paying generating hour every day lower than the coal unit of reference value_+j':In formula, N is �� t on the same day_iCoal unit sum more than 0; Electrical network pays the generating hour compensation F lower than the coal unit of reference value every year₊' it is:Electrical network is higher than the coal unit fee charged F of reference value every day from generating hour_-j' it is:In formula, M is �� t on the same day_iCoal unit sum less than 0; Electrical network every year from generating hour more than reference value time coal unit fee charged F_-' it is:It addition, shut down peak regulation coal unit to be not involved in the type compensation.

As shown in Figure 4, embodiments of the invention additionally provide the peak regulation reimbursement for expenses of a kind of power system and obtain system, including:

First acquisition module, for obtaining power system field evidence in a Preset Time;

Second acquisition module, for according to described field evidence, it is thus achieved that the peak regulation contribution rate of described power system generator unit;

3rd acquisition module, for according to described peak regulation contribution rate, it is thus achieved that the peak regulation reimbursement for expenses of described generator unit;

Parsing module, according to described peak regulation reimbursement for expenses, obtains the peak regulation compensation standard of described generator unit;

Output module, exports described peak regulation reimbursement for expenses and peak regulation compensation standard.

Network load peak, low-valley interval, according to network load characteristic, are carried out Definition of Division quarterly, obtain the peak regulation reimbursement for expenses of power system, establish the peak regulation valence compensation model promoting wind electricity digestion by the system described in the above embodiment of the present invention; Optimize peak regulation compensation mechanism, for promoting that the formulation of wind electricity digestion valence compensation mechanism provides technical support.

The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from principle of the present invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims (14)

1. the peak regulation reimbursement for expenses acquisition methods of a power system, it is characterised in that including:

Obtain power system field evidence in a Preset Time;

According to described field evidence, it is thus achieved that the peak regulation contribution rate of described power system generator unit;

According to described peak regulation contribution rate, it is thus achieved that the peak regulation reimbursement for expenses of described generator unit;

According to described peak regulation reimbursement for expenses, obtain the peak regulation compensation standard of described generator unit;

Export described peak regulation reimbursement for expenses and peak regulation compensation standard.

2. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 1, it is characterised in that the step obtaining power system field evidence in a Preset Time includes:

Obtain the Wind turbines of the described power system power load curve in a Preset Time, power supply processes curve and interconnection trade off curve; Or

Obtain the coal unit of the described power system power load curve in a Preset Time, generator unit daily output curve and generator unit daily generation.

3. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 2, it is characterised in that according to described field evidence, it is thus achieved that the step of the peak regulation contribution rate of described power system generator unit includes:

Process curve according to Wind turbines power load curve in a Preset Time, power supply and interconnection trade off curve obtains the peak regulation contribution rate of generator unit.

4. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 3, it is characterized in that, process curve according to Wind turbines power load curve in a Preset Time, power supply and the step of peak regulation contribution rate that interconnection trade off curve obtains generator unit includes:

Pass through formula:Obtain the peak regulation contribution rate of generator unit;

Wherein, �� r_iPeak regulation contribution rate for generator unit;For benchmark peak regulation rate; r_iPeak regulation rate for generator unit.

5. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 4, it is characterized in that, process curve according to Wind turbines power load curve in a Preset Time, power supply and the step of peak regulation contribution rate that interconnection trade off curve obtains generator unit also includes:

According to formula:

$\stackrel{\‾}{r}=\frac{P_{\mathrm{sv}}}{P_{\mathrm{sp}}};r_i=\frac{P_{\mathrm{vi}}}{P_{\mathrm{pi}}}$

Wherein, P_spFor load peak period load meansigma methods, including the electric power that interconnection flows out; P_svFor load valley period load meansigma methods, including the electric power that interconnection flows out; P_piAverage output for load peak period generator unit; P_viAverage output for load valley period generator unit.

6. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 5, it is characterised in that also include:

According to formula: F_i=�� r_i��P_i�� A obtains the peak regulation reimbursement for expenses that generator unit should obtain every day;

Wherein, F_iFor the peak regulation reimbursement for expenses that generator unit should obtain every day; P_iExert oneself for the powered interconnection maximum power transmission in the load peak period outside the generator unit EIAJ in the load peak period and district; A is that peak regulation range compensates unit price.

7. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 6, it is characterised in that also include:

When the peak regulation contribution rate of generator unit is more than zero, described generator unit obtains peak regulation reimbursement for expenses;

When the peak regulation contribution rate of generator unit is less than zero, described generator unit expenditure peak regulation reimbursement for expenses.

8. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 7, it is characterised in that also include:

When Wind turbines and interconnection the load peak period exert oneself be 0 time, then the peak regulation reimbursement for expenses of described generator unit expenditure is according to formula: F_i=P_i�� A obtains;

Wherein, P_iExert oneself for the powered interconnection maximum power transmission in the load peak period outside the generator unit EIAJ in the load peak period and district.

9. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 2, it is characterised in that according to described field evidence, it is thus achieved that the step that the step of the peak regulation contribution rate of described power system generator unit includes includes:

According to coal unit power load curve in a Preset Time, generator unit daily output curve and generator unit daily generation, obtain the peak regulation contribution rate of generator unit.

10. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 2, it is characterised in that according to described field evidence, it is thus achieved that the step that the step of the peak regulation contribution rate of described power system generator unit includes also includes:

According to formula: ${\mathrm{\Δt}}_i=\stackrel{\‾}{t}-t_i$

Wherein, �� t_iPeak regulation contribution rate for generator unit;For day benchmark generating hourage; t_iThe hourage that generates electricity day for generator unit.

11. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 10, it is characterised in that described coal unit pass through described in the step of the data that the collect peak regulation contribution rate that calculates described power system generator unit also include:

According to formula:

$\stackrel{\‾}{t}=\frac{Q_s}{P_p};t_i=\frac{Q_{\mathrm{vi}}}{P_{\mathrm{pi}}}$

Wherein, P_pThe maximum of sum of exerting oneself for load peak period all generator units; Q_sFor all generator unit daily generations; P_piDay EIAJ for generator unit; Q_viDaily generation for generator unit.

12. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 11, it is characterised in that also include:

According to formula: F '_i=�� t_i��P_i�� B obtains the peak regulation reimbursement for expenses that generator unit should obtain every day;

Wherein, F_i' the reimbursement for expenses of peaking generation hour change that should obtain for generator unit; P_iExert oneself for the powered interconnection maximum power transmission in the load peak period outside the generator unit EIAJ in the load peak period and district; B is peaking generation hourage compensating for variations unit price.

13. the peak regulation reimbursement for expenses acquisition methods of power system according to claim 12, it is characterised in that also include:

When the peak regulation contribution rate of generator unit is more than zero, described generator unit obtains the compensation that generating hourage reduces;

When the peak regulation contribution rate of generator unit is less than zero, the compensation that described generator unit expenditure generating hourage increases.

14. the peak regulation reimbursement for expenses of a power system obtains system, it is characterised in that including:

First acquisition module, for obtaining power system field evidence in a Preset Time;

Second acquisition module, for according to described field evidence, it is thus achieved that the peak regulation contribution rate of described power system generator unit;

3rd acquisition module, for according to described peak regulation contribution rate, it is thus achieved that the peak regulation reimbursement for expenses of described generator unit;

Parsing module, according to described peak regulation reimbursement for expenses, obtains the peak regulation compensation standard of described generator unit;

Output module, exports described peak regulation reimbursement for expenses and peak regulation compensation standard.