CN106655279A - Power plant grid-connection active power real time control method taking electric quantity transaction plan into consideration - Google Patents

Abstract

The invention discloses a power plant grid-connection active power real time control method taking an electric quantity transaction plan into consideration, and belongs to the electric power system operation and control field. A ratio between a power plant electric quantity transaction completion rate and a transaction plan implementation progress is taken as an electric quantity transaction implementation rate index, a power plant low in electric quantity transaction implementation rate index, an intermittent new energy power station high in grid-connection prediction performance index, a power plant high in grid-connection active control performance index and an economical and environment-friendly power plant low in comprehensive cost per generating capacity get priority during grid-connection active real-time control, the above factors are taken as a target function, and a linear plan model considering safety and stability, active standby, power plant active adjusting capability, a power plant active plan, a power grid external power transmission channel active plan and a power balance constraint requirement that are related to electric quantity transaction plan implementation is built. The method of the invention helps to improve practicality of power plant grid-connection active power real time control.

Description

The grid-connected active power real-time control method in power plant of meter and electricity trading program

Technical field

The invention belongs to operation and control of electric power system technical field, more precisely, the present invention relates to a kind of meter and electricity The grid-connected active power real-time control method in power plant of amount trading program.

Background technology

With the propulsion of electric Power Reform, the marketization concludes the business electricity scale just in rapid growth, market-oriented electricity transaction agent More and more, not only the conventional energy resource such as water power, thermoelectricity power plant participates in market-oriented electricity transaction, and intermittence generation of electricity by new energy Factory is also in market-oriented electricity transaction is added step-wise to.The power generation dispatching planning management of existing reply marketization electricity transaction is adopted It is the technical scheme of Multiple Time Scales rolling amendment, by annual power generation dispatching planning management, monthly power generation dispatching plan pipe Reason, all power generation dispatching planning management, a few days ago power generation dispatching planning management, in a few days power generation dispatching planning management and real-time power generation dispatching Planning management is constituted.On the whole, " plan " factor of this power generation dispatching project management technique scheme is stronger.It is just wherein single For individual power generation dispatching planning management module, do not have to consider that different power plants are grid-connected active in the way of quantifying in its object function The difference between the grid-connected active power estimated performance of difference, different gap new energy power station between power control performance, with And the smoothing processing of different power plants transaction electricity implementation rates；Real time power loss system is not introduced in its active power balance constraint yet Number, the precision of active power balance is not high；Additionally, when cannot get optimal solution, the meter without the interim lax reserve of application Calculate strategy.

Marketization transaction electricity account for total electricity ratio is higher, grid power transmission channel security stability limitation fluctuation ratio compared with Greatly, intermittence new forms of energy electric power account for total generating capacity ratio is higher, the grid-connected active power controller performance difference in power plant is larger In the case of larger with the grid-connected active power estimated performance indicator difference of intermittence new energy power station, existing technical scheme is more difficult to To realize that the execution requirement of marketization transaction electricity plan can either be met, the economic and environment-friendly synthesis of unit generated energy is can guarantee that again The minimum purpose of cost, can not improve grid-connected active power controller level and intermittence new energy power station is improved simultaneously for power plant The precision of prediction of net active power provides spontaneous promotion power.

The content of the invention

The present invention seeks to：The economy that requirement can guarantee that unit generated energy again is performed for electricity trading program can be met Environmental-protection comprehensive cost is minimum, there is provided a kind of method of the grid-connected active power real-time control in power plant.

The present invention general principle be：When electricity trading program is not considered, the grid-connected active power controller in power plant is obtained Optimized model is exactly to meet safety and stability, the active regulating power in standby, power plant, the active plan in power plant, electrical network externally defeated Under the active plan of electric channel and power-balance constraint are required, realize that the economic and environment-friendly integrate-cost of unit generated energy is minimum.To Consider the electricity trading program in power plant, then need to introduce electricity trading program implementation rate index in object function, increase electricity The weight in the low power plant of amount trading program implementation rate, to reflect different in the grid-connected active power controller Optimal Decision-making in power plant The electricity trading program implementation rate in power plant is tried one's best consistent fairness requirement.Additionally, to improve power plant to grid-connected active power The response performance of regulation and control instruction execution value, the grid-connected active power regulation and control instruction execution value of raising are performed in intermittence new energy power station Precision, in addition it is also necessary in object function introduce power plant grid-connected active power controller performance indications and intermittence new forms of energy electricity The estimated performance index of the grid-connected active power stood.

Specifically, the present invention employs the following technical solutions realization, comprises the following steps：

1) when judging current time t₀During the moment of grid-connected active power real-time control, enter to need to carry out power plant Enter step 2)；

2) by t₀Moment participates in the set in the power plant of grid-connected active power real-time control and is designated as A, by t₀Also exist in moment A The set for participating in the power plant of electricity trading program is designated as B, the set of A intermediate gaps property generation of electricity by new energy factory is designated as into C, by t₀When The set in the power plant that quarter is not involved in grid-connected active power real-time control is designated as D, by the electricity transaction meter in i-th power plant in B Draw the execution cycle be designated as T_i, will be away from t₀The executed time of i-th power plant electricity trading program is designated as T in moment B_C.i, by B I-th power plant is in T_iThe interior trading program electricity for needing to complete is designated as W_i, i-th power plant is away from t in statistics B₀Moment T_C.iInterior completed transaction electricity, is designated as W_C.i, the t that will be respectively calculated by formula (1)₀Each power plant in moment B The ratio of transaction electricity completion rate and its electricity exchange hour progress, as t₀The moment electricity transaction in corresponding each power plant is held Row rate index, by formula (2) the grid-connected active power estimated performance index in each power plant in C is calculated, and is counted by formula (3) The grid-connected active power controller performance indications in each power plant in A are calculated, into step 3)；

Wherein, α_iFor the electricity transaction implementation rate index in i-th electricity transaction power plant in B, M_1.iFor i-th generating in C Factory is away from t₀The prediction of grid-connected active power is bent in the grid-connected active power unrestricted time period in moment nearest setting cycle The sampling of data point sum of line,WithThe m in i-th power plant in respectively C₁Individual data sample point Grid-connected active power predicted value, grid-connected active power actual value and start capacity, β_iFor in C i-th power plant it is grid-connected active Power prediction performance indications, M_2.iIt is i-th power plant in A away from t₀Grid-connected active power in moment nearest setting cycle The sampling of data point sum of the regulation and control instruction curve of grid-connected active power in restricted time section,WithRespectively For the m in i-th power plant in A₂The regulation and control instruction execution value of the grid-connected active power of individual data sample point, grid-connected active power Actual value and start capacity, γ_iFor the grid-connected active power controller performance indications in i-th power plant in A；

The grid-connected active power unrestricted time period refers to that the regulation and control instruction execution value of its grid-connected active power is equal to it (t₀The time period of the grid-connected active power predicted value at+Δ t) moment, wherein, Δ t is the grid-connected active power reality in power plant of setting When controlling cycle；

The grid-connected active power restricted time section refers to that the regulation and control instruction execution value of its grid-connected active power is less than its (t₀ The time period of the grid-connected active power predicted value at+Δ t) moment；

Be 1 by its grid-connected active power estimated performance setup measures for the power plant that C is not belonging in A, in A not Belong to the power plant of B, be 1 by its electricity transaction implementation rate setup measures；

3) Optimized model represented using linear programming method solution formula (4), if optimal solution P' can be obtained_n.i(i∈ ) and P' C_i(i ∈ A and), then using it as A in the regulation and control instruction of grid-connected active power in corresponding power plant hold Row value, return to step 1)；

Otherwise, when the Optimized model represented using linear programming method solution formula (5), optimal solution P' can be obtained_n.i(i ∈ C) and P_i' (i ∈ A and), then using it as A in corresponding power plant grid-connected active power regulation and control instruction Execution value, return to step 1)；When the Optimized model represented using linear programming method solution formula (5), cannot get P'_n.iAnd P'_i Optimal solution, then by t₀The grid-connected active power actual value in each power plant is respectively as its grid-connected active power in moment A Regulation and control instruction execution value, return to step 1).

Wherein, P'_n.i、α_n.i、β_n.i、γ_n.iAnd λ_n.iThe grid-connected active power regulation and control instruction in i-th power plant in respectively C Execution value, electricity transaction implementation rate index, grid-connected active power estimated performance index, grid-connected active power controller performance indications and The economic and environment-friendly composite of performance index of meter and unit quantity of electricity, P'_i、α_i、β_i、γ_iAnd λ_iI-th generating of C is not belonging in respectively A The grid-connected active power regulation and control instruction execution value of factory, electricity transaction implementation rate index, grid-connected active power estimated performance index and The economic and environment-friendly composite of performance index of net active power controller performance indications and meter and unit quantity of electricity, P_pre.iFor (t₀+ Δ t) the moment The grid-connected active power predicted value in i-th power plant in C, ρ be setting parameter, ρ P_pre.iFor representing (t₀In+Δ t) moment C The grid-connected active power in i-th power plant is adjustable interval lower limit, P_i.max、P_i.minI-th power plant of C is not belonging in respectively A Grid-connected active power maximum and minimum of a value, P_iFor t₀The grid-connected active power reality in i-th power plant of C is not belonging in moment A Actual value, a is t₀The grid-connected active power regulation speed in i-th power plant of C, P' are not belonging in moment A_g.iFor (t₀+ Δ t) the moment The grid-connected active power plan value in i-th power plant in D, T is to regulate and control to administer the external passway for transmitting electricity number of electrical network, P'_t.iFor (t₀+ The active power plan value of i-th passage in Δ t) moment external passway for transmitting electricity, injection regulation and control administration electrical network is for just, b is t₀When The loss factor of regulation and control administration electrical network is carved, L is load number in regulation and control administration electrical network, P'_l.iFor (t₀+ Δ t) the moment regulates and controls administration electricity The active power predicted value of i-th load in net, J is for the section number of safety and stability monitoring, P in regulation and control administration electrical network_tl.j、 P_tl.j.maxRespectively t₀The active power actual value and safety and stability limit of i-th section in moment safety and stability monitoring section, S_0.j.iFor t₀The grid-connected active power in i-th power plant is to j-th section active power in safety and stability monitoring section in moment C Sensitivity, P_n.iFor t₀The grid-connected active power actual value in i-th power plant, S in moment C_1.j.iFor t₀C is not belonging in moment A I-th power plant grid-connected active power to safety and stability monitor section in j-th section active power sensitivity, S_2.j.i For t₀The grid-connected active power in i-th power plant monitors the spirit of j-th section active power in section to safety and stability in moment D Sensitivity, P_g.iFor t₀The grid-connected active power actual value in i-th power plant, S in moment D_3.j.iFor t₀In moment external passway for transmitting electricity The active power of i-th passage monitors the sensitivity of j-th section active power in section, P to safety and stability_t.iFor t₀Moment The grid-connected active power actual value of i-th passage, S in external passway for transmitting electricity_4.j.iFor t₀Moment regulation and control administration electrical network in i-th it is negative The active power of lotus monitors the sensitivity of j-th section active power in section, P to safety and stability_l.iFor t₀Moment regulation and control administration The active power actual value of i-th load, c in electrical network₁、c₂Respectively the just standby of control procedure setting is run according to dispatching of power netwoks With coefficient and negative reserve factor, d is the power plant relative to non-gap new forms of energy, and the intermittence generation of electricity by new energy factory of setting exists Proportionality coefficient in terms of reserve, μ is the parameter for loosening reserve constraint of setting.

Following technique effects are achieved by adopting above-mentioned technical proposal, the present invention：

Compared with the effect of existing power generation dispatching project management technique scheme, the present invention is in the grid-connected active power in power plant Except the economic and environment-friendly performance indications for considering power plant unit generated energy in the object function of real-time control Optimized model, also introduce The electricity trading program implementation rate index in power plant, the grid-connected active power controller performance indications in power plant and the new energy of intermittence The estimated performance index of the grid-connected active power in source power station, can preferably meet electricity trading program and perform requirement and can protect The economic and environment-friendly integrate-cost of card unit generated energy is minimum, additionally it is possible to for power plant improve grid-connected active power controller level and Gap new energy power station improves the precision of prediction of grid-connected active power and provides spontaneous promotion power；Draw in active power balance constraint Enter real time power loss coefficient, improve the precision of active power balance；When cannot get optimal solution, the interim lax reserve of application Calculative strategy, improve the reliability of the grid-connected active power real-time control decision optimization in power plant.

Description of the drawings

The flow chart of the step of Fig. 1 is the inventive method 1- steps 3.

Specific embodiment

The present invention is described in further detail with reference to the accompanying drawings.

Step 1 in Fig. 1：When judging current time t₀To need to carry out power plant grid-connected active power real-time control During the moment, into step 2.

Step 2 in Fig. 1：By t₀Moment participates in the set in the power plant of grid-connected active power real-time control and is designated as A, by t₀When Carve the set in A also in the power plant for participating in electricity trading program and be designated as B, the set of A intermediate gaps property generation of electricity by new energy factory is remembered For C, by t₀Moment is not involved in the set in the power plant of grid-connected active power real-time control and is designated as D, by i-th power plant in B The electricity trading program execution cycle is designated as T_i, will be away from t₀The executed time note of i-th power plant electricity trading program in moment B For T_C.i, by i-th power plant in B in T_iThe interior trading program electricity for needing to complete is designated as W_i, i-th power plant exists in statistics B Away from t₀The T at moment_C.iInterior completed transaction electricity, is designated as W_C.i, the t that will be respectively calculated by formula (1)₀In moment B each The ratio of the transaction electricity completion rate in power plant and its electricity exchange hour progress, as t₀Moment corresponding each power plant electricity Amount transaction implementation rate index, by formula (2) the grid-connected active power estimated performance index in each power plant in C is calculated, and is passed through Formula (3) calculates the grid-connected active power controller performance indications in each power plant in A, into step 3；

Wherein, α_iFor the electricity transaction implementation rate index in i-th electricity transaction power plant in B, M_1.iFor i-th generating in C Factory is away from t₀In the grid-connected active power unrestricted time period in moment nearest setting cycle (generally may be configured as 1 month) simultaneously The sampling of data point sum of the prediction curve of net active power,WithI-th power plant in respectively C M₁The grid-connected active power predicted value of individual data sample point, grid-connected active power actual value and start capacity, β_iFor i-th in C The grid-connected active power estimated performance index in power plant, M_2.iIt is i-th power plant in A away from t₀Moment nearest setting cycle The number of the regulation and control instruction curve of grid-connected active power in grid-connected active power restricted time section in (generally may be configured as 1 month) According to sample point sum,WithThe m in i-th power plant in respectively A₂Individual the grid-connected of data sample point has The regulation and control instruction execution value of work(power, grid-connected active power actual value and start capacity, γ_iFor in A i-th power plant it is grid-connected Active power controller performance indications；

The grid-connected active power unrestricted time period refers to that the regulation and control instruction execution value of its grid-connected active power is equal to it (t₀The time period of the grid-connected active power predicted value at+Δ t) moment, wherein, Δ t is the grid-connected active power reality in power plant of setting When controlling cycle, generally may be configured as 5 minutes；

The grid-connected active power restricted time section refers to that the regulation and control instruction execution value of its grid-connected active power is less than its (t₀ The time period of the grid-connected active power predicted value at+Δ t) moment；

Be 1 by its grid-connected active power estimated performance setup measures for the power plant that C is not belonging in A, in A not Belong to the power plant of B, be 1 by its electricity transaction implementation rate setup measures.

Step 3 in Fig. 1：The Optimized model represented using linear programming method solution formula (4), if optimal solution can be obtained P'_n.i(i ∈ C) and P'_i(i ∈ A and), then using it as A in corresponding power plant grid-connected active power tune Control instruction execution value, return to step 1；

Otherwise, when the Optimized model represented using linear programming method solution formula (5), optimal solution P' can be obtained_n.i(i ∈ C) and P'_i(i ∈ A and), then using it as A in corresponding power plant grid-connected active power regulation and control instruction Execution value, return to step 1；When the Optimized model represented using linear programming method solution formula (5), cannot get P'_n.iAnd P'_i Optimal solution, then by t₀The grid-connected active power actual value in each power plant is respectively as its grid-connected active power in moment A Regulation and control instruction execution value, return to step 1.

Wherein, P'_n.i、α_n.i、β_n.i、γ_n.iAnd λ_n.iThe grid-connected active power regulation and control instruction in i-th power plant in respectively C Execution value, electricity transaction implementation rate index, grid-connected active power estimated performance index, grid-connected active power controller performance indications and The economic and environment-friendly composite of performance index of meter and unit quantity of electricity, P'_i、α_i、β_i、γ_iAnd λ_iI-th generating of C is not belonging in respectively A The grid-connected active power regulation and control instruction execution value of factory, electricity transaction implementation rate index, grid-connected active power estimated performance index and The economic and environment-friendly composite of performance index of net active power controller performance indications and meter and unit quantity of electricity, P_pre.iFor (t₀+ Δ t) the moment The grid-connected active power predicted value in i-th power plant in C, ρ be setting parameter (generally may be configured as 0.1), ρ P_pre.iFor table Show (t₀The adjustable interval lower limit of the grid-connected active power in i-th power plant, P in+Δ t) moment C_i.max、P_i.minDo not belong in respectively A In the grid-connected active power maximum and minimum of a value in i-th power plant of C, P_iFor t₀I-th power plant of C is not belonging in moment A Grid-connected active power actual value, a is t₀The grid-connected active power regulation speed in i-th power plant of C is not belonging in moment A, P'_g.iFor (t₀The grid-connected active power plan value in i-th power plant in+Δ t) moment D, T is the external defeated of regulation and control administration electrical network Electric channel number (using the branch road collection of same calculate node in injection regulation and control administration electrical network as an external passway for transmitting electricity), P'_t.i For (t₀The active power plan value of i-th passage in+Δ t) moment external passway for transmitting electricity, injection regulation and control administration electrical network is just b For t₀The loss factor of moment regulation and control administration electrical network, L is load number in regulation and control administration electrical network, P'_l.iFor (t₀+ Δ t) the moment regulates and controls The active power predicted value of i-th load in administration electrical network, J is for the section of safety and stability monitoring in regulation and control administration electrical network Number, P_tl.j、P_tl.j.maxRespectively t₀The active power actual value and safety of i-th section are steady in moment safety and stability monitoring section Fixed limit volume, S_0.j.iFor t₀The grid-connected active power in i-th power plant is to j-th section in safety and stability monitoring section in moment C The sensitivity of active power, P_n.iFor t₀The grid-connected active power actual value in i-th power plant, S in moment C_1.j.iFor t₀Moment A In be not belonging to the grid-connected active power in i-th power plant of C to safety and stability monitor section in j-th section active power spirit Sensitivity, S_2.j.iFor t₀There is the grid-connected active power in i-th power plant to j-th section in safety and stability monitoring section in moment D The sensitivity of work(power, P_g.iFor t₀The grid-connected active power actual value in i-th power plant, S in moment D_3.j.iFor t₀Moment is external The active power of i-th passage monitors the sensitivity of j-th section active power in section to safety and stability in passway for transmitting electricity, P_t.iFor t₀The grid-connected active power actual value of i-th passage, S in moment external passway for transmitting electricity_4.j.iFor t₀Moment regulation and control administration electricity The active power of i-th load monitors the sensitivity of j-th section active power in section, P to safety and stability in net_l.iFor t₀ The active power actual value of i-th load, c in moment regulation and control administration electrical network₁、c₂Respectively according to dispatching of power netwoks operation control rule Positive reserve factor and negative reserve factor that journey is arranged, d is that the intermittence of the power plant setting relative to non-gap new forms of energy is new Proportionality coefficient (generally may be configured as 0.2) of the energy power plant in terms of reserve, μ is setting for loosening reserve The parameter (generally may be configured as 0.8) of constraint.

Although the present invention is disclosed as above with preferred embodiment, embodiment is not for limiting the present invention's.Not Depart from the spirit and scope of the present invention, any equivalence changes done or retouching also belong to the protection domain of the present invention.Cause The content that this protection scope of the present invention should be defined with claims hereof is as standard.

Claims (1)

1. meter and electricity trading program the grid-connected active power real-time control method in power plant, it is characterised in that including following step Suddenly：

1) when judging current time t₀To need to carry out power plant during the moment of grid-connected active power real-time control, into step It is rapid 2)；

2) by t₀Moment participates in the set in the power plant of grid-connected active power real-time control and is designated as A, by t₀Also participating in moment A The set in the power plant of electricity trading program is designated as B, the set of A intermediate gaps property generation of electricity by new energy factory is designated as into C, by t₀Moment is not The set for participating in the power plant of grid-connected active power real-time control is designated as D, and the electricity trading program in i-th power plant in B is held Line period is designated as T_i, will be away from t₀The executed time of i-th power plant electricity trading program is designated as T in moment B_C.i, by B i-th Individual power plant is in T_iThe interior trading program electricity for needing to complete is designated as W_i, i-th power plant is away from t in statistics B₀The T at moment_C.iIt is interior Completed transaction electricity, is designated as W_C.i, the t that will be respectively calculated by formula (1)₀The transaction electricity in each power plant in moment B The ratio of amount completion rate and its electricity exchange hour progress, as t₀The moment electricity transaction implementation rate in corresponding each power plant refers to Mark, by formula (2) the grid-connected active power estimated performance index in each power plant in C is calculated, and is calculated in A by formula (3) The grid-connected active power controller performance indications in each power plant, into step 3)；

$\begin{array}{cc}{\mathrm{\α}}_i=\frac{W_{C.i}/W_i}{T_{C.i}/T_i}& i\∈B\end{array}---\left(1\right)$

$\begin{array}{cc}{\mathrm{\β}}_i=1-\sqrt{\frac{1}{M_{1.i}}\underset{m_1=1}{\overset{M_{1.i}}{\Σ}}{\left(\frac{P_{p.i.m_1}-P_{r.i.m_1}}{P_{x.i.m_1}}\right)}^2}& i\∈C\end{array}---\left(2\right)$

$\begin{array}{cc}{\mathrm{\γ}}_i=1-\sqrt{\frac{1}{M_{2.i}}\underset{m_2=1}{\overset{M_{2.i}}{\Σ}}{\left(\frac{P_{c.i.m_2}-P_{r.i.m_2}}{P_{x.i.m_2}}\right)}^2}& i\∈A\end{array}---\left(3\right)$

Wherein, α_iFor the electricity transaction implementation rate index in i-th electricity transaction power plant in B, M_1.iExist for i-th power plant in C Away from t₀The prediction curve of grid-connected active power in the grid-connected active power unrestricted time period in moment nearest setting cycle Sampling of data point sum,WithThe m in i-th power plant in respectively C₁Individual data sample point it is grid-connected Active power predicted value, grid-connected active power actual value and start capacity, β_iFor the grid-connected active power in i-th power plant in C Estimated performance index, M_2.iIt is i-th power plant in A away from t₀Grid-connected active power in moment nearest setting cycle is limited The sampling of data point sum of the regulation and control instruction curve of grid-connected active power in time period,WithRespectively A In i-th power plant m₂The regulation and control instruction execution value of the grid-connected active power of individual data sample point, grid-connected active power reality Actual value and start capacity, γ_iFor the grid-connected active power controller performance indications in i-th power plant in A；

The grid-connected active power unrestricted time period refers to that the regulation and control instruction execution value of its grid-connected active power is equal to its (t₀+Δ T) time period of the grid-connected active power predicted value at moment, wherein, Δ t is the grid-connected active power real-time control in power plant of setting Cycle；

The grid-connected active power restricted time section refers to that the regulation and control instruction execution value of its grid-connected active power is less than its (t₀+Δt) The time period of the grid-connected active power predicted value at moment；

It is 1 by its grid-connected active power estimated performance setup measures for the power plant that C is not belonging in A, for being not belonging to B in A Power plant, be 1 by its electricity transaction implementation rate setup measures；

3) Optimized model represented using linear programming method solution formula (4), if optimal solution P can be obtained '_n.iAnd P '_i, then will Its respectively as the grid-connected active power in corresponding power plant in A regulation and control instruction execution value, return to step 1)；Otherwise, when adopting The Optimized model represented with linear programming method solution formula (5), can obtain optimal solution P '_n.iAnd P '_i, then it is made respectively For the regulation and control instruction execution value of the grid-connected active power in corresponding power plant in A, return to step 1)；When adopting linear programming method The Optimized model that solution formula (5) is represented, cannot get P '_n.iAnd P '_iOptimal solution, then by t₀In moment A each power plant and Net active power actual value respectively as its grid-connected active power regulation and control instruction execution value, return to step 1)：

Wherein, P '_n.i、α_n.i、β_n.i、γ_n.iAnd λ_n.iThe grid-connected active power regulation and control instruction in i-th power plant is performed in respectively C Value, electricity transaction implementation rate index, grid-connected active power estimated performance index, grid-connected active power controller performance indications and meter and The economic and environment-friendly composite of performance index of unit quantity of electricity, wherein for P '_n.iFor i ∈ C, P '_i、α_i、β_i、γ_iAnd λ_iIn respectively A It is not belonging to grid-connected active power regulation and control instruction execution value, the electricity transaction implementation rate index, grid-connected active in i-th power plant of C The economic and environment-friendly performance synthesis of power prediction performance indications, grid-connected active power controller performance indications and meter and unit quantity of electricity refers to Mark, wherein for P '_iFor i ∈ A andP_pre.iFor (t₀The grid-connected active power in i-th power plant in+Δ t) moment C Predicted value, ρ be setting parameter, ρ P_pre.iFor representing (t₀The grid-connected active power in i-th power plant is adjustable in+Δ t) moment C Interval lower limit, P_i.max、P_i.minThe grid-connected active power maximum and minimum in i-th power plant of C are not belonging in respectively A Value, P_iFor t₀The grid-connected active power actual value in i-th power plant of C is not belonging in moment A, a is t₀It is not belonging to C's in moment A The grid-connected active power regulation speed in i-th power plant, P '_g.iFor (t₀I-th power plant is grid-connected active in+Δ t) moment D Power planning value, T is to regulate and control to administer the external passway for transmitting electricity number of electrical network, P '_t.iFor (t₀In+Δ t) moment external passway for transmitting electricity The active power plan value of i passage, injection regulation and control administration electrical network is for just, b is t₀The loss factor of moment regulation and control administration electrical network, L is load number in regulation and control administration electrical network, P '_l.iFor (t₀The active power that+Δ t) the moment regulates and controls i-th load in administration electrical network is pre- Measured value, J is for the section number of safety and stability monitoring, P in regulation and control administration electrical network_tl.j、P_tl.j.maxRespectively t₀Moment safety is steady Surely the active power actual value and safety and stability limit of i-th section in section, S are monitored_0.j.iFor t₀I-th generating in moment C The grid-connected active power of factory monitors the sensitivity of j-th section active power in section, P to safety and stability_n.iFor t₀In moment C The grid-connected active power actual value in i-th power plant, S_1.j.iFor t₀Be not belonging in moment A C i-th power plant it is grid-connected active Power monitors the sensitivity of j-th section active power in section, S to safety and stability_2.j.iFor t₀I-th power plant in moment D Grid-connected active power to safety and stability monitor section in j-th section active power sensitivity, P_g.iFor t₀I-th in moment D The grid-connected active power actual value in individual power plant, S_3.j.iFor t₀The active power pair of i-th passage in moment external passway for transmitting electricity The sensitivity of j-th section active power, P in safety and stability monitoring section_t.iFor t₀In moment external passway for transmitting electricity i-th lead to The grid-connected active power actual value in road, S_4.j.iFor t₀The active power of i-th load is steady to safety in moment regulation and control administration electrical network Surely the sensitivity of j-th section active power in section, P are monitored_l.iFor t₀I-th load has in moment regulation and control administration electrical network Work(power actual value, c₁、c₂Respectively positive reserve factor and the negative reserve factor that control procedure is arranged, d are run according to dispatching of power netwoks It is ratio system of the intermittence generation of electricity by new energy factory in terms of reserve set relative to the power plant of non-gap new forms of energy Number, μ is the parameter for loosening reserve constraint of setting.