CN103259291A - Photovoltaic active control method of concentration output of large-scale wind power plants and photovoltaic power stations - Google Patents

Abstract

The invention discloses a photovoltaic active control method of concentration output of large-scale wind power plants and photovoltaic power stations, and belongs to the technical field of electric power systems and automation thereof. According to the photovoltaic active control method, an output plan of various photovoltaic power stations is calculated according to limitation, for the output section, of a current dispatching mode and an operation type of a power grid, and according to a current plan and real-time output of the wind power plants. The photovoltaic active control method can guarantee the fact that the power grid can stably and reliably operate in various operation types and various fault conditions, and meanwhile improves transmission ability of the power grid to the maximum. When wind power and photoelectric power share an output channel, by means of coordination control of output of the wind power plants and the photovoltaic power stations, wind sources and photoelectric sources are reasonably used, and the overall using rate of new energy resources is improved.

Description

A kind of large-scale wind power field photovoltaic plant is concentrated the meritorious control method of the photovoltaic of sending

Technical field

The invention belongs to the control technique in power system field, more precisely, the present invention relates to a kind of large-scale wind power field and photovoltaic plant of being applicable to and concentrate the photovoltaic control method of sending in the meritorious control.

Background technology

Be incorporated into the power networks along with large-scale wind power is concentrated, realized the meritorious control to wind-electricity integration.And photovoltaic generation scale is less at the beginning, consider the control photovoltaic in the existing power grid control.But along with the extensive development of photovoltaic generation, wind-powered electricity generation and photovoltaic generation can be sent passage outside by the co-extrusion electrical network, the time regular meeting " traffic congestion " appears.

Therefore, for rationally utilizing wind, light resources, improve the overall utilization rate of new forms of energy, improve the security and stability of electrical network.Need jointly control scene, exert oneself by the plan of exerting oneself, control the meritorious of photovoltaic plant according to wind energy turbine set.

Summary of the invention

The objective of the invention is: understand the deficiency that the co-extrusion electrical network is sent passage outside at the wind-powered electricity generation that exists in the prior art and photovoltaic generation, the meritorious control method of photovoltaic that provides a kind of large-scale wind power field photovoltaic plant to concentrate to send, thus realize according to electrical network current scheduling pattern, operational mode to limit and the wind energy turbine set current planning of sending section with exert oneself to calculate the plan of exerting oneself that issues photovoltaic plant in real time.

Specifically, the present invention adopts following technical scheme to realize, comprises the following steps:

1) calculates the plan of initially exerting oneself of each photovoltaic plant, and issue the plan of exerting oneself to each photovoltaic plant and wind energy turbine set;

2) will concentrate be incorporated into the power networks public same all wind energy turbine set of sending passage outside and photovoltaic plant as an overall region, be divided into a plurality of subregions according to the online of wind energy turbine set, the photovoltaic plant overall region of naming a person for a particular job again;

3) judge in the overall region wind-powered electricity generation situation of exerting oneself, judge each subregion wind-powered electricity generation situation of exerting oneself again, each photovoltaic plant is controlled calculating, obtain the plan of newly exerting oneself of each photovoltaic plant;

4) the Centre De Controle Mixte station is issued to each photovoltaic plant with the plan of newly exerting oneself of each photovoltaic plant;

5) carry out the calculating of next computing cycle, repeating step 2) to 4).

Of the present invention being further characterized in that: in the described step 1), the plan of initially exerting oneself of each photovoltaic plant is:

P _{A_PV_initPlan}＝P _{A_PV_ZJ}-P _{A_PV_JX}

In the formula, P _{A_PV_initPlan}Represent the plan of initially exerting oneself of each photovoltaic plant, P _{A_PV_ZJ}Represent the installed capacity of each photovoltaic plant, P _{A_PV_JX}Represent the maintenance capacity of each photovoltaic plant.

Of the present invention being further characterized in that: the computational methods of the plan of newly exerting oneself of each photovoltaic plant are as follows in the described step 3):

3-1) earlier whether limited according to the whole wind-powered electricity generation of following condition judgment, when condition 1., 2., when 3. satisfying simultaneously, think that whole wind-powered electricity generation is limited; Otherwise, think that whole wind-powered electricity generation is not limited:

1. the P of certain wind energy turbine set _{W_Cur}+ Δ P _Set＞P _{W_Plan}

2. satisfy condition 1. wind energy turbine set number more than or equal to NUM _{W_All_min}

③(P _{LF_max}-P _{LF_cur})＜P _{LF_Limit}

P wherein _{W_Cur}For the current of this wind energy turbine set exerted oneself, Δ P _SetBe the meritorious deviation definite value of exerting oneself of this wind energy turbine set, P _{W_Plan}Be the current planning of this wind energy turbine set, NUM _{W_All_min}For satisfying the limited wind energy turbine set minimum number definite value of whole wind-powered electricity generation, P _{LF_max}Send the maximum of passage for scene in the overall region outside and send limit definite value, P _{LF_cur}For scene in the overall region is sent the current meritorious of passage, P outside _{LF_Limit}Send channel margin minimum value definite value outside for whole wind-powered electricity generation is not limited;

Whether limited according to wind-powered electricity generation in each subregion of following condition judgment again, when condition 4., 5., when 6. satisfying simultaneously, think that wind-powered electricity generation is limited in this subregion; Otherwise, think that the interior wind-powered electricity generation of this subregion is not limited:

4. the P of certain wind energy turbine set in this subregion _{W_Area_Cur}+ Δ P _Set＞P _{W_Area_plan}

5. satisfy condition 4. wind energy turbine set number in this subregion more than or equal to NUM _{W_Area_min}

⑥(P _{LF_area_max}-P _{LF_area_cur})＜P _{LF_area_Limit}

P wherein _{W_Area_Cur}For the current of this wind energy turbine set exerted oneself, Δ P _SetBe the meritorious deviation definite value of this output of wind electric field, P _{W_Area_Plan}Be the current planning of this wind field, NUM _{W_Area_min}For satisfying the limited wind energy turbine set minimum number definite value of this subregion wind-powered electricity generation, P _{LF_area_max}For the maximum that this subregion scene is sent passage outside is sent limit definite value, P _{LF_area_cur}For this subregion scene is sent the current meritorious of passage, P outside _{LF_area_Limit}Send channel margin minimum value definite value outside for this subregion wind-powered electricity generation is not limited;

3-2) if according to above judgement, draw when wind-powered electricity generation is not limited in the limited and all subregions of whole wind-powered electricity generation, enter step 3-3);

If according to above judgement, draw the limited while of whole wind-powered electricity generation also to exist when wind-powered electricity generation is limited in the subregion, enter step 3-4);

If according to above judgement, draw in the limited and not all subregions of whole wind-powered electricity generation wind-powered electricity generation when also limited,, enter step 3-5);

If according to above judgement, it is limited but exist when wind-powered electricity generation is limited in the subregion to draw whole wind-powered electricity generation, enters step 3-6);

3-3) at first count the photovoltaic plant number Num that meets the condition of subduing in the overall region: exert oneself greater than the minimum planned limit definite value of this photovoltaic plant if certain photovoltaic plant is current in the overall region, this photovoltaic plant is the photovoltaic plant that meets the condition of subduing in the overall region;

Then, calculate the satisfied total amount of the subduing P of photovoltaic plant of condition that subdues in the overall region _Reduce:

$P_{\mathrm{Reduce}}=\mathrm{Min}(P_{\mathrm{Reduce}\_\max \_\mathrm{set}},\underset{i=1}{\overset{\mathrm{Num}}{\mathrm{\Σ}}}(P_{{\mathrm{PV}}_{{\mathrm{cur}}_i}}-P_{{\mathrm{PV}}_{{\min }_i}}))$

In the formula, P _{Reduce_max_set}For single in the overall region is subdued maximum total amount definite value,

For the current of i photovoltaic plant of satisfying the condition of subduing in the overall region exerted oneself,

For satisfying the minimum planned limit definite value of i photovoltaic plant of the condition of subduing in the overall region;

Then, calculate the plan of newly exerting oneself of satisfying each photovoltaic plant of the condition of subduing in the overall region:

$P_{A\_\mathrm{NewPlan}}=P_{\mathrm{PV}\_A\_\mathrm{Cur}}-P_{\mathrm{Reduce}}*((P_{\mathrm{PV}\_A\_\mathrm{Cur}}-P_{\mathrm{PV}\_A\_\min })/\underset{i=1}{\overset{\mathrm{Num}}{\mathrm{\Σ}}}(P_{{\mathrm{PV}}_{{\mathrm{cur}}_i}}-P_{{\mathrm{PV}}_{{\min }_i}}))$

In the formula, P _{A_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of satisfying the condition of subduing in the overall region, P _{PV_A_Cur}Represent each photovoltaic plant current exerting oneself separately of satisfying the condition of subduing in the overall region, P _{PV_A_min}Represent and satisfy each photovoltaic plant minimum planned limit definite value separately of subduing under the condition in the overall region;

At last, calculate the plan of newly exerting oneself of not satisfying each photovoltaic plant of the condition of subduing in the overall region:

P _{B_NewPlan}=P _{B_Cur_Plan}

In the formula, P _{B_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of not satisfying the condition of subduing in the overall region, P _{B_Cur_Plan}Do not satisfy each photovoltaic plant current planning separately of the condition of subduing in the table overall region;

3-4) if when current control type be whole control, according to step 3-3) the method plan of newly exerting oneself of calculating each photovoltaic plant;

When if current control type is subregion control, the plan of newly exerting oneself of calculating each photovoltaic plant according to following process:

At first, count to satisfy in the limited subregion of each wind-powered electricity generation and subdue the photovoltaic plant number Num_area of condition: if the current of certain photovoltaic plant exerted oneself greater than the minimum planned limit definite value of this photovoltaic plant in the limited subregion of certain wind-powered electricity generation, this photovoltaic plant is the photovoltaic plant that meets the condition of subduing in the limited subregion of this wind-powered electricity generation;

Then, calculate the satisfied total amount of subduing of photovoltaic plant of subduing condition of the limited subregion of each wind-powered electricity generation:

$P_{\mathrm{Reduce}\_\mathrm{Area}}=\mathrm{Min}(P_{\mathrm{Reduce}\_\max \_\mathrm{area}\_\mathrm{set}},\underset{i=1}{\overset{\mathrm{Num}\_\mathrm{area}}{\mathrm{\Σ}}}(P_{\mathrm{PV}\_\mathrm{area}\_{\mathrm{cur}}_i}-P_{\mathrm{PV}\_\mathrm{area}\_{\min }_i}))$

In the formula, P _{Reduce_Area}Represent the limited subregion of each wind-powered electricity generation satisfied total amount of subduing of photovoltaic plant of subduing condition separately, P _{Reduce_max_area_set}Represent the limited subregion of each wind-powered electricity generation single separately and subdue maximum total amount definite value,

Represent the current of i photovoltaic plant of satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation and exert oneself,

Represent the minimum planned limit that satisfies i photovoltaic plant of the condition of subduing in the limited subregion of each wind-powered electricity generation;

Then, calculating the photovoltaic plant that satisfies the condition of subduing in the limited subregion of each wind-powered electricity generation newly plans:

$P_{A\_\mathrm{Area}\_\mathrm{NewPlan}}=P_{\mathrm{PV}\_A\_\mathrm{Area}\_\mathrm{Cur}}-P_{\mathrm{Reduce}\_\mathrm{Area}}*\left(\frac{(P_{\mathrm{PV}\_A\_\mathrm{Area}\_\mathrm{Cu}r}-P_{\mathrm{PV}\_A\_\mathrm{Area}\_\min })}{{\mathrm{\Σ}}_{i=1}^{\mathrm{Num}\_\mathrm{area}}(P_{\mathrm{PV}\_\mathrm{area}\_{\mathrm{cur}}_i}-P_{\mathrm{PV}\_\mathrm{area}\_{\min }_i})}\right)$

In the formula, P _{A_Area_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation, P _{PV_A_Area_Cur}Represent each photovoltaic plant current exerting oneself separately of satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation, P _{PV_A_Area_min}Represent each photovoltaic plant minimum planned limit definite value separately that satisfies the condition of subduing in the limited subregion of each wind-powered electricity generation;

Then, calculate the new plan of not satisfying the photovoltaic plant of the condition of subduing in the limited subregion of each wind-powered electricity generation:

P _{B_Area_NewPlan}=P _{B_Area_Cur_Plan}

In the formula, P _{B_Area_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of not satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation, P _{B_Area_Cur_Plan}Represent each photovoltaic plant current planning separately of not satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation;

At last, calculate the new plan of each photovoltaic plant in the not limited subregion of each wind-powered electricity generation:

P _{C_NewPlan}=P _{C_Cur_Plan}

P in the formula _{C_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately in the not limited subregion of each wind-powered electricity generation, P _{C_Cur_Plan}Represent each photovoltaic plant current planning separately in the not limited subregion of each wind-powered electricity generation;

3-5) to the photovoltaic plant of current planning in the overall region less than working capacity, promote by its working capacity ratio, calculate each current planning less than the plan of newly exerting oneself of the photovoltaic plant of working capacity:

$P_{D\_\mathrm{NewPlan}}=\min (P_{D\_\mathrm{Cur}\_\mathrm{Plan}}+\frac{P_{\mathrm{Set}\_\mathrm{Area}\_\mathrm{Add}}*(P_{D\_\mathrm{PV}\_\mathrm{Run}}-P_{D\_\mathrm{Cur}\_\mathrm{Plan}})}{{\mathrm{\Σ}}_{i=1}^n(P_{i\_\mathrm{PV}\_\mathrm{Run}}-P_{i\_\mathrm{Cur}\_\mathrm{Plan}})},P_{D\_\mathrm{PV}\_\mathrm{Run}})$

In the formula, P _{D_NewPlan}Represent interior each current planning of overall region less than the photovoltaic plant plan of newly exerting oneself separately of working capacity, P _{D_Cur_Plan}Represent interior each current planning of overall region less than the photovoltaic plant current planning separately of working capacity, P _{Set_Area_Add}Represent each current planning less than the single lift total amount definite value of the photovoltaic plant place subregion of working capacity, _{PD_PV_Run}Represent interior each current planning of overall region less than the photovoltaic plant working capacity separately of working capacity, n is that the interior current planning of overall region is less than the total number of the photovoltaic plant of working capacity, P _{I_PV_Run}Represent interior i the current planning of overall region less than the working capacity of the photovoltaic plant of working capacity, P _{I_Cur_Plan}Represent interior i the current planning of overall region less than the current planning of the photovoltaic plant of working capacity;

Current planning in the overall region is not less than the photovoltaic plant of working capacity, and it is constant that its current planning is kept in its plan of newly exerting oneself;

3-6) for the limited subregion of each wind-powered electricity generation, according to step 3-4) in current control type be the plan of newly exerting oneself that the computational methods in subregion when control are calculated each photovoltaic plant;

For the not limited subregion of each wind-powered electricity generation, current planning is wherein calculated its plan of newly exerting oneself as follows less than the photovoltaic plant of working capacity:

$P_{E\_\mathrm{NewPlan}}=\min (P_{E\_\mathrm{Cur}\_\mathrm{Plan}}+\frac{P_{\mathrm{Set}\_\mathrm{Area}\_\mathrm{Add}}*(P_{E\_\mathrm{PV}\_\mathrm{Run}}-P_{E\_\mathrm{Cur}\_\mathrm{Plan}})}{{\mathrm{\Σ}}_{i=1}^m(P_{i\_\mathrm{Area}\_\mathrm{PV}\_\mathrm{Run}}-P_{i\_\mathrm{Area}\_\mathrm{Cur}\_\mathrm{Plan}})},P_{E\_\mathrm{PV}\_\mathrm{Run}})$

In the formula, P _{E_NewPlan}Represent interior each current planning of the not limited subregion of each wind-powered electricity generation less than the photovoltaic plant plan of newly exerting oneself separately of working capacity, P _{E_Cur_Plan}Represent interior each current planning of the not limited subregion of each wind-powered electricity generation less than the photovoltaic plant current planning separately of working capacity, P _{E_PV_Run}Represent in the not limited subregion of each wind-powered electricity generation each current planning less than the photovoltaic plant working capacity separately of working capacity, m represents in the not limited subregion of each wind-powered electricity generation separately current planning less than the total number of the photovoltaic plant of working capacity, P _{I_Area_PV_Run}Represent interior i the current planning of the not limited subregion of each wind-powered electricity generation less than the working capacity of the photovoltaic plant of working capacity, P _{I_Area_Cur_Plan}Represent interior i the current planning of the not limited subregion of each wind-powered electricity generation less than the current planning of the photovoltaic plant of working capacity;

For the not limited subregion of each wind-powered electricity generation, current planning wherein is not less than the photovoltaic plant of working capacity, it is constant that its current planning is kept in its plan of newly exerting oneself.

Beneficial effect of the present invention is as follows: the present invention according to electrical network current scheduling pattern, operational mode to limit and the wind energy turbine set current planning of sending section with exert oneself to calculate the plan of exerting oneself that issues each photovoltaic plant in real time, guarantee electrical network reliable and stable operation under various operational modes and failure condition, improved simultaneously the conveying capacity of electrical network to greatest extent, at wind-powered electricity generation, when the photoelectricity co-extrusion is sent passage outside, by coordinating exerting oneself of control wind energy turbine set, photovoltaic plant, rationally utilize wind, light resources, improve the overall utilization rate of new forms of energy.

Description of drawings

Fig. 1 is the flow chart of the inventive method.

Embodiment

With reference to the accompanying drawings and in conjunction with example the present invention is described in further detail.

As shown in Figure 1, method of the present invention may further comprise the steps:

When A. beginning to calculate for the first time, calculate the original plan of photovoltaic plant, and the plan that issues is to each photovoltaic plant and wind energy turbine set.

B. will concentrate be incorporated into the power networks public same all wind energy turbine set of sending passage outside and photovoltaic plant as an overall region, be divided into a plurality of subregions according to the online of wind energy turbine set, the photovoltaic plant overall region of naming a person for a particular job again.

C. per fixed cycle is judged in the overall region wind-powered electricity generation situation of exerting oneself, and judges each subregion wind-powered electricity generation situation of exerting oneself again, and photovoltaic plant is controlled calculating, obtains the new plan of exerting oneself of next computing cycle of each photovoltaic plant;

D. the Centre De Controle Mixte station is issued to each photovoltaic plant with the new plan of photovoltaic plant.

E. next computing cycle, repeating step B-D.

Among the above-mentioned steps A, the original plan of certain the photovoltaic plant A in the combined control system is:

P _{A_PV_initPlan}＝P _{A_PV_ZJ}-P _{A_PV_JX}

In the formula, P _{A_PV_initPlan}Be the original plan of photovoltaic plant A, P _{A_PV_Zj}Be the installed capacity of photovoltaic plant A, P _{A_PV_JX}Maintenance capacity for photovoltaic plant A.

Among the above-mentioned steps C, it is as follows to calculate the meritorious generation schedule concrete grammar of each photovoltaic plant:

C.1 judge the condition that whole wind-powered electricity generation is limited:

1. the P of certain wind energy turbine set _{W_Cur}+ Δ P _Set)＞P _{W_Plan};

2. satisfy condition 1. wind energy turbine set number more than or equal to NUM _{W_All_min};

③(P _{LF_maX}-P _{LF_cur})＜P _{LF_Limit}；

1., 2. and 3. condition needs to satisfy simultaneously, wherein: P _{W_Cur}For the current of wind energy turbine set exerted oneself; Δ P _SetIt is the meritorious deviation definite value of exerting oneself of wind energy turbine set; P _{W_Plan}Be the current planning of wind energy turbine set, NUM _{W_All_min}For satisfying the limited wind energy turbine set minimum number definite value of whole wind-powered electricity generation; P _{LF_max}Send the maximum of passage for scene in the overall region outside and send the limit definite value; P _{LF_cur}For scene in the overall region is sent the current meritorious of passage outside; P _{LF_Limit}Send channel margin minimum value definite value outside for whole wind is not limited.

C.2 judge the limited condition of wind-powered electricity generation in the subregion:

1. the P of certain wind energy turbine set in this subregion _{W_Area_Cur}+ Δ P _Set＞P _{W_Area_plan};

2. satisfy condition 1. wind energy turbine set number in this subregion more than or equal to NUM _{W_Area_min}

③(P _{LF_area_max}-P _{LF_area_cur})＜P _{LF_area_Limit}；

1., 2. and 3. condition needs to satisfy simultaneously, wherein: P _{W_Area_Cur}For the current of wind energy turbine set in this subregion exerted oneself; Δ P _SetIt is the meritorious deviation definite value of output of wind electric field; P _{W_Area_Plan}Current planning for wind energy turbine set in this subregion; NUM _{W_Area_min}For satisfying the limited wind energy turbine set minimum number definite value of this subregion wind-powered electricity generation; P _{LF_area_max}Send the maximum of passage for the subregion scene outside and send the limit definite value; P _{LF_area_cur}For the subregion scene is sent the current meritorious of passage outside; P _{LF_area_Limit}Send channel margin minimum value definite value outside for the subregion wind-powered electricity generation is not limited.

C.3 according to C.1 and condition judgment C.2 to go out whole wind-powered electricity generation limited, when all subregion wind-powered electricity generations are not limited, the photovoltaic plant that satisfies the condition of subduing in the overall region is subdued, calculation process is as follows:

Calculate the photovoltaic plant number Num that meets the condition of subduing: photovoltaic plant is current exerts oneself greater than the minimum planned limit definite value of photovoltaic plant, and this photovoltaic plant P is the photovoltaic plant that meets the condition of subduing.

Calculate to satisfy and subdue the total amount of the subduing P of photovoltaic plant of condition _Reduce:

$P_{\mathrm{Reduce}}=\mathrm{Min}(P_{\mathrm{Reduce}\_\max \_\mathrm{set}},\underset{i=1}{\overset{\mathrm{Num}}{\mathrm{\Σ}}}(P_{{\mathrm{PV}}_{{\mathrm{cur}}_i}}-P_{{\mathrm{PV}}_{{\min }_i}}))$

In the formula, p _{Reduce_max_set}For whole single is subdued maximum total amount definite value,

Be satisfied current the exerting oneself of photovoltaic plant i of subduing condition,

Be the minimum planned limit definite value of photovoltaic plant i.

Calculate and satisfy the new plan (photovoltaic plant A is example) of subduing each photovoltaic plant under the condition:

$P_{A\_\mathrm{NewPlan}}=P_{\mathrm{PV}\_A\_\mathrm{Cur}}-P_{\mathrm{Reduce}}*((P_{\mathrm{PV}\_A\_\mathrm{Cur}}-P_{\mathrm{PV}\_A\_\min })/\underset{i=1}{\overset{\mathrm{Num}}{\mathrm{\Σ}}}(P_{{\mathrm{PV}}_{{\mathrm{cur}}_i}}-P_{{\mathrm{PV}}_{{\min }_i}}))$

In the formula, P _{A_NewPlan}A newly plans for photovoltaic plant, P _{PV_A_Cur}Exert oneself P for photovoltaic plant A is current _{PV_A_min}Be the minimum planned limit definite value of photovoltaic plant A.

Calculate the photovoltaic plant that overall region do not satisfy the condition of subduing and newly plan (be example with photovoltaic plant B):

P _{B_NewPlan}=P _{B_Cur_Plan}

In the formula, P _{B_NewPlan}B newly plans for photovoltaic plant, P _{B_Cur_Plan}Be photovoltaic plant B current planning.

C.4 according to C.1 and condition judgment C.2 to go out whole wind-powered electricity generation limited, when also existing the subregion wind-powered electricity generation limited, calculation procedure is as follows:

Read control type definite value SET _{Ctr_type}, judge control method according to definite value;

SET _{Ctr_type}Value be method one (whole control), each photovoltaic plant is exerted oneself the plan calculation procedure referring to C.3.

SET _{Ctr_type}Value be method two (subregion control), each photovoltaic plant plan calculation process of exerting oneself is in the limited subregion of wind-powered electricity generation:

Add up to satisfy in the limited subregion of each wind-powered electricity generation and subdue the photovoltaic plant number Num_area of condition: the current of certain photovoltaic plant exerted oneself in the minimum planned limit definite value of photovoltaic plant in the subregion, and this photovoltaic plant is the photovoltaic plant that meets the condition of subduing.

Calculate the total amount of subduing of photovoltaic plant that the limited subregion of each wind-powered electricity generation satisfies the condition of subduing:

$P_{\mathrm{Reduce}\_\mathrm{Area}}=\mathrm{Min}(P_{\mathrm{Reduce}\_\max \_\mathrm{area}\_\mathrm{set}},\underset{i=1}{\overset{\mathrm{Num}\_\mathrm{area}}{\mathrm{\Σ}}}(P_{\mathrm{PV}\_\mathrm{area}\_{\mathrm{cur}}_i}-P_{\mathrm{PV}\_\mathrm{area}\_{\min }_i}))$

In the formula, P _{Reduce_max_area_set}For the limited subregion of each wind-powered electricity generation single is separately subdued maximum total amount definite value,

Represent the current of i photovoltaic plant of satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation and exert oneself,

Represent the minimum planned limit that satisfies i photovoltaic plant of the condition of subduing in the limited subregion of each wind-powered electricity generation.

Calculating the photovoltaic plant that satisfies the condition of subduing in the limited subregion of wind-powered electricity generation newly plans:

$P_{A\_\mathrm{Area}\_\mathrm{NewPlan}}=P_{\mathrm{PV}\_A\_\mathrm{Area}\_\mathrm{Cur}}-P_{\mathrm{Reduce}\_\mathrm{Area}}*\left(\frac{(P_{\mathrm{PV}\_A\_\mathrm{Area}\_\mathrm{Cu}r}-P_{\mathrm{PV}\_A\_\mathrm{Area}\_\min })}{{\mathrm{\Σ}}_{i=1}^{\mathrm{Num}\_\mathrm{area}}(P_{\mathrm{PV}\_\mathrm{area}\_{\mathrm{cur}}_i}-P_{\mathrm{PV}\_\mathrm{area}\_{\min }_i})}\right)$

In the formula, P _{A_Area_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation, P _{PV_A_Area_Cur}Represent each photovoltaic plant current exerting oneself separately of satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation, P _{PV_A_Area_min}Represent each photovoltaic plant minimum planned limit definite value separately that satisfies the condition of subduing in the limited subregion of each wind-powered electricity generation;

Then, calculate the new plan of not satisfying the photovoltaic plant of the condition of subduing in the limited subregion of each wind-powered electricity generation:

P _{B_Area_NewPlan}＝P _{B_Area_Cur_Plan}

In the formula, P _{B_Area_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of not satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation, P _{B_Area_Cur_Plan}Represent each photovoltaic plant current planning separately of not satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation.

SET _{Ctr_type}Value be method two (subregion control), calculate the new plan of each photovoltaic plant in the not limited subregion of each wind-powered electricity generation:

P _{C_NewPlan}＝P _{C_Cur_Plan}

P in the formula _{C_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately in the not limited subregion of each wind-powered electricity generation, P _{C_Cur_Plan}Represent each photovoltaic plant current planning separately in the not limited subregion of each wind-powered electricity generation;

C.5 according to C.1 and condition judgment C.2 to go out whole wind-powered electricity generation not limited, all subregion wind-powered electricity generations are not limited yet, to the photovoltaic plant of current planning in the overall region less than working capacity, promote by its working capacity ratio, calculate each current planning less than the plan of newly exerting oneself of the photovoltaic plant of working capacity:

$P_{D\_\mathrm{NewPlan}}=\min (P_{D\_\mathrm{Cur}\_\mathrm{Plan}}+\frac{P_{\mathrm{Set}\_\mathrm{Area}\_\mathrm{Add}}*(P_{D\_\mathrm{PV}\_\mathrm{Run}}-P_{D\_\mathrm{Cur}\_\mathrm{Plan}})}{{\mathrm{\Σ}}_{i=1}^n(P_{i\_\mathrm{PV}\_\mathrm{Run}}-P_{i\_\mathrm{Cur}\_\mathrm{Plan}})},P_{D\_\mathrm{PV}\_\mathrm{Run}})$

In the formula, P _{D_NewPlan}Represent interior each current planning of overall region less than the photovoltaic plant plan of newly exerting oneself separately of working capacity, P _{D_Cur_Plan}Represent interior each current planning of overall region less than the photovoltaic plant current planning separately of working capacity, P _{Set_Area_Add}Represent each current planning less than the single lift total amount definite value of the photovoltaic plant place subregion of working capacity, P _{D_PV_Run}Represent interior each current planning of overall region less than the photovoltaic plant working capacity separately of working capacity, n is that the interior current planning of overall region is less than the total number of the photovoltaic plant of working capacity, P _{I_PV_Run}Represent interior i the current planning of overall region less than the working capacity of the photovoltaic plant of working capacity, P _{I_Cur_Plan}Represent interior i the current planning of overall region less than the current planning of the photovoltaic plant of working capacity.

P wherein _{D_PV_Run}=P _{D_PV_ZJ}-P _{D_PV_JX}, P _{D_PV_ZJ}Be photovoltaic plant separately the installed capacity of each current planning in the overall region less than working capacity, P _{D_PV_JX}Be photovoltaic plant separately the maintenance capacity of each current planning in the overall region less than working capacity.

Current planning in the overall region is not less than the photovoltaic plant of working capacity, and it is constant that its current planning is kept in its plan of newly exerting oneself.

C.6 according to C.1 and condition judgment C.2 to go out whole wind-powered electricity generation not limited, exist the subregion wind-powered electricity generation limited, each photovoltaic plant plan computational methods of exerting oneself are as follows:

The new plan calculation procedure of photovoltaic plant is as 3 in C.4 in the limited subregion of wind-powered electricity generation) substep.

For the not limited subregion of each wind-powered electricity generation, current planning is wherein calculated its plan of newly exerting oneself as follows less than the photovoltaic plant of working capacity:

$P_{E\_\mathrm{NewPlan}}=\min (P_{E\_\mathrm{Cur}\_\mathrm{Plan}}+\frac{P_{\mathrm{Set}\_\mathrm{Area}\_\mathrm{Add}}*(P_{E\_\mathrm{PV}\_\mathrm{Run}}-P_{E\_\mathrm{Cur}\_\mathrm{Plan}})}{{\mathrm{\Σ}}_{=1}^m(P_{i\_\mathrm{Area}\_\mathrm{PV}\_\mathrm{Run}}-P_{i\_\mathrm{Area}\_\mathrm{Cur}\_\mathrm{Plan}})},P_{E\_\mathrm{PV}\_\mathrm{Run}})$

In the formula, P _{E_NewPlan}Represent interior each current planning of the not limited subregion of each wind-powered electricity generation less than the photovoltaic plant plan of newly exerting oneself separately of working capacity, P _{E_Cur_Plan}Represent interior each current planning of the not limited subregion of each wind-powered electricity generation less than the photovoltaic plant current planning separately of working capacity, P _{E_PV_Run}Represent in the not limited subregion of each wind-powered electricity generation each current planning less than the photovoltaic plant working capacity separately of working capacity, m represents in the not limited subregion of each wind-powered electricity generation separately current planning less than the total number of the photovoltaic plant of working capacity, P _{I_Area_PV_Run}Represent interior i the current planning of the not limited subregion of each wind-powered electricity generation less than the working capacity of the photovoltaic plant of working capacity, P _{I_Area_Cur_plan}Represent interior i the current planning of the not limited subregion of each wind-powered electricity generation less than the current planning of the photovoltaic plant of working capacity;

For the not limited subregion of each wind-powered electricity generation, current planning wherein is not less than the photovoltaic plant of working capacity, it is constant that its current planning is kept in its plan of newly exerting oneself.

Though the present invention is with preferred embodiment openly as above, embodiment be not limit of the present invention.Without departing from the spirit and scope of the invention, any equivalence of doing changes or retouching, belongs to the present invention's protection range equally.Therefore protection scope of the present invention should be standard with the application's the content that claim was defined.

Claims (3)

1. a large-scale wind power field photovoltaic plant is concentrated the meritorious control method of the photovoltaic of sending, and it is characterized in that, comprises the steps:

1) calculates the plan of initially exerting oneself of each photovoltaic plant, and issue the plan of exerting oneself to each photovoltaic plant and wind energy turbine set;

2) will concentrate be incorporated into the power networks public same all wind energy turbine set of sending passage outside and photovoltaic plant as an overall region, be divided into a plurality of subregions according to the online of wind energy turbine set, the photovoltaic plant overall region of naming a person for a particular job again;

3) judge in the overall region wind-powered electricity generation situation of exerting oneself, judge each subregion wind-powered electricity generation situation of exerting oneself again, each photovoltaic plant is controlled calculating, obtain the plan of newly exerting oneself of each photovoltaic plant;

4) the Centre De Controle Mixte station is issued to each photovoltaic plant with the plan of newly exerting oneself of each photovoltaic plant;

5) carry out the calculating of next computing cycle, repeating step 2) to 4).

2. large-scale wind power according to claim 1 field overhead utility is concentrated the meritorious control method of the photovoltaic of sending, and it is characterized in that, in the described step 1), the plan of initially exerting oneself of each photovoltaic plant is:

P _{A_PV_initPlan}＝P _{A_PV_ZJ}-P _{A_PV_JX}

In the formula, P _{A_PV_initPlan}Represent the plan of initially exerting oneself of each photovoltaic plant, P _{A_PV_ZJ}Represent the installed capacity of each photovoltaic plant, P _{A_PV_JX}Represent the maintenance capacity of each photovoltaic plant.

3. large-scale wind power according to claim 1 field overhead utility is concentrated the meritorious control method of the photovoltaic of sending, and it is characterized in that, the computational methods of the plan of newly exerting oneself of each photovoltaic plant are as follows in the described step 3):

3-1) earlier whether limited according to the whole wind-powered electricity generation of following condition judgment, when condition 1., 2., when 3. satisfying simultaneously, think that whole wind-powered electricity generation is limited; Otherwise, think that whole wind-powered electricity generation is not limited:

1. the P of certain wind energy turbine set _{W_Cur}+ Δ P _Set＞P _{W_plan}

2. satisfy condition 1. wind energy turbine set number more than or equal to NUM _{W_All_min}

③(P _{LF_max}-P _{LF_cur})＜P _{LF_Limit}

P wherein _{W_Cur}For the current of this wind energy turbine set exerted oneself, Δ P _SetBe the meritorious deviation definite value of exerting oneself of this wind energy turbine set, P _{W_Plan}Be the current planning of this wind energy turbine set, NUM _{W_All_min}For satisfying the limited wind energy turbine set minimum number definite value of whole wind-powered electricity generation, P _{LF_max}Send the maximum of passage for scene in the overall region outside and send limit definite value, P _{LF_cur}For scene in the overall region is sent the current meritorious of passage, P outside _{LF_Limit}Send channel margin minimum value definite value outside for whole wind-powered electricity generation is not limited;

Whether limited according to wind-powered electricity generation in each subregion of following condition judgment again, when condition 4., 5., when 6. satisfying simultaneously, think that wind-powered electricity generation is limited in this subregion; Otherwise, think that the interior wind-powered electricity generation of this subregion is not limited:

4. the P of certain wind energy turbine set in this subregion _{W_Area_Cur}+ Δ P _Set＞P _{W_Area_plan}

5. satisfy condition 4. wind energy turbine set number in this subregion more than or equal to NUM _{W_Area_min}

⑥(P _{LF_area_max}-P _{LF_area_cur})＜P _{LF_area_Limit}

P wherein _{W_Area_Cur}For the current of this wind energy turbine set in the subregion exerted oneself, Δ P _SetBe the meritorious deviation definite value of this output of wind electric field, P _{W_Area_Plan}Be the current planning of this wind energy turbine set in the subregion, NUM _{W_Area_min}For satisfying the limited wind energy turbine set minimum number definite value of this subregion wind-powered electricity generation, P _{LF_area_max}For the maximum that this subregion scene is sent passage outside is sent limit definite value, P _{LF_area_cur}For this subregion scene is sent the current meritorious of passage, P outside _{LF_area_Limit}Send channel margin minimum value definite value outside for this subregion wind-powered electricity generation is not limited;

3-2) if according to above judgement, draw when wind-powered electricity generation is not limited in the limited and all subregions of whole wind-powered electricity generation, enter step 3-3);

If according to above judgement, draw the limited while of whole wind-powered electricity generation also to exist when wind-powered electricity generation is limited in the subregion, enter step 3-4);

If according to above judgement, draw in the limited and not all subregions of whole wind-powered electricity generation wind-powered electricity generation when also limited,, enter step 3-5);

If according to above judgement, it is limited but exist when wind-powered electricity generation is limited in the subregion to draw whole wind-powered electricity generation, enters step 3-6);

3-3) at first count the photovoltaic plant number Num that meets the condition of subduing in the overall region: exert oneself greater than the minimum planned limit definite value of this photovoltaic plant if certain photovoltaic plant is current in the overall region, this photovoltaic plant is the photovoltaic plant that meets the condition of subduing in the overall region;

Then, calculate the satisfied total amount of the subduing P of photovoltaic plant of condition that subdues in the overall region _Reduce:

$P_{\mathrm{Reduce}}=\mathrm{Min}(P_{\mathrm{Reduce}\_\max \_\mathrm{set}},\underset{i=1}{\overset{\mathrm{Num}}{\mathrm{\Σ}}}(P_{{\mathrm{PV}}_{{\mathrm{cur}}_i}}-P_{{\mathrm{PV}}_{{\min }_i}}))$

In the formula, P _{Reduce_max_set}For single in the overall region is subdued maximum total amount definite value,

For the current of i photovoltaic plant of satisfying the condition of subduing in the overall region exerted oneself,

For satisfying the minimum planned limit definite value of i photovoltaic plant of the condition of subduing in the overall region;

Then, calculate the plan of newly exerting oneself of satisfying each photovoltaic plant of the condition of subduing in the overall region:

$P_{A\_\mathrm{NewPlan}}=P_{\mathrm{PV}\_A\_\mathrm{Cur}}-P_{\mathrm{Reduce}}*((P_{\mathrm{PV}\_A\_\mathrm{Cur}}-P_{\mathrm{PV}\_A\_\min })/\underset{i=1}{\overset{\mathrm{Num}}{\mathrm{\Σ}}}(P_{{\mathrm{PV}}_{{\mathrm{cur}}_i}}-P_{{\mathrm{PV}}_{{\min }_i}}))$

In the formula, P _{A_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of satisfying the condition of subduing in the overall region, P _{PV_A_Cur}Represent each photovoltaic plant current exerting oneself separately of satisfying the condition of subduing in the overall region, P _{PV_A_min}Represent and satisfy each photovoltaic plant minimum planned limit definite value separately of subduing under the condition in the overall region;

At last, calculate the plan of newly exerting oneself of not satisfying each photovoltaic plant of the condition of subduing in the overall region:

P _{B_NewPlan}＝P _{B_Cur_Plan}

In the formula, P _{B_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of not satisfying the condition of subduing in the overall region, P _{B_Cur_Plan}Represent each photovoltaic plant current planning separately of not satisfying the condition of subduing in the overall region;

3-4) if when current control type be whole control, according to step 3-3) the method plan of newly exerting oneself of calculating each photovoltaic plant;

When if current control type is subregion control, the plan of newly exerting oneself of calculating each photovoltaic plant according to following process:

At first, count to satisfy in the limited subregion of each wind-powered electricity generation and subdue the photovoltaic plant number Num_area of condition: if the current of certain photovoltaic plant exerted oneself greater than the minimum planned limit definite value of this photovoltaic plant in the limited subregion of certain wind-powered electricity generation, this photovoltaic plant is the photovoltaic plant that meets the condition of subduing in the limited subregion of this wind-powered electricity generation;

Then, calculate the satisfied total amount of subduing of photovoltaic plant of subduing condition of the limited subregion of each wind-powered electricity generation:

$P_{\mathrm{Reduce}\_\mathrm{Area}}=\mathrm{Min}(P_{\mathrm{Reduce}\_\max \_\mathrm{area}\_\mathrm{set}},\underset{i=1}{\overset{\mathrm{Num}\_\mathrm{area}}{\mathrm{\Σ}}}(P_{\mathrm{PV}\_\mathrm{area}\_{\mathrm{cur}}_i}-P_{\mathrm{PV}\_\mathrm{area}\_{\min }_i}))$

In the formula, P _{Reduce_Area}Represent the limited subregion of each wind-powered electricity generation satisfied total amount of subduing of photovoltaic plant of subduing condition separately, P _{Reduce_max_area_set}Represent the limited subregion of each wind-powered electricity generation single separately and subdue maximum total amount definite value,

Represent the current of i photovoltaic plant of satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation and exert oneself,

Represent the minimum planned limit that satisfies i photovoltaic plant of the condition of subduing in the limited subregion of each wind-powered electricity generation;

Then, calculating the photovoltaic plant that satisfies the condition of subduing in the limited subregion of each wind-powered electricity generation newly plans:

$P_{A\_\mathrm{Area}\_\mathrm{NewPlan}}=P_{\mathrm{PV}\_A\_\mathrm{Area}\_\mathrm{Cur}}-P_{\mathrm{Reduce}\_\mathrm{Area}}*\left(\frac{(P_{\mathrm{PV}\_A\_\mathrm{Area}\_\mathrm{Cu}r}-P_{\mathrm{PV}\_A\_\mathrm{Area}\_\min })}{{\mathrm{\Σ}}_{i=1}^{\mathrm{Num}\_\mathrm{area}}(P_{\mathrm{PV}\_\mathrm{area}\_{\mathrm{cur}}_i}-P_{\mathrm{PV}\_\mathrm{area}\_{\min }_i})}\right)$

In the formula, P _{A_Area_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation, P _{PV_A_Area_Cur}Represent each photovoltaic plant current exerting oneself separately of satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation, P _{PV_A_Area_min}Represent each photovoltaic plant minimum planned limit definite value separately that satisfies the condition of subduing in the limited subregion of each wind-powered electricity generation;

Then, calculate the new plan of not satisfying the photovoltaic plant of the condition of subduing in the limited subregion of each wind-powered electricity generation:

P _{B_Area_NewPlan}＝P _{B_Area_Cur_Plan}

In the formula, P _{B_Area_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately of not satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation, P _{B_Area_Cur_Plan}Represent each photovoltaic plant current planning separately of not satisfying the condition of subduing in the limited subregion of each wind-powered electricity generation;

At last, calculate the new plan of each photovoltaic plant in the not limited subregion of each wind-powered electricity generation:

P _{C_NewPlan}＝P _{C_Cur_Plan}

P in the formula _{C_NewPlan}Represent each photovoltaic plant plan of newly exerting oneself separately in the not limited subregion of each wind-powered electricity generation, P _{C_Cur_Plan}Represent each photovoltaic plant current planning separately in the not limited subregion of each wind-powered electricity generation;

3-5) to the photovoltaic plant of current planning in the overall region less than working capacity, promote by its working capacity ratio, calculate each current planning less than the plan of newly exerting oneself of the photovoltaic plant of working capacity:

$P_{D\_\mathrm{NewPlan}}=\min (P_{D\_\mathrm{Cur}\_\mathrm{Plan}}+\frac{P_{\mathrm{Set}\_\mathrm{Area}\_\mathrm{Add}}*(P_{D\_\mathrm{PV}\_\mathrm{Run}}-P_{D\_\mathrm{Cur}\_\mathrm{Plan}})}{{\mathrm{\Σ}}_{i=1}^n(P_{i\_\mathrm{PV}\_\mathrm{Run}}-P_{i\_\mathrm{Cur}\_\mathrm{Plan}})},P_{D\_\mathrm{PV}\_\mathrm{Run}})$

In the formula, P _{D_NewPlan}Represent interior each current planning of overall region less than the photovoltaic plant plan of newly exerting oneself separately of working capacity, P _{D_Cur_Plan}Represent interior each current planning of overall region less than the photovoltaic plant current planning separately of working capacity, P _{Set_Area_Add}Represent each current planning less than the single lift total amount definite value of the photovoltaic plant place subregion of working capacity, P _{D_PV_Run}Represent interior each current planning of overall region less than the photovoltaic plant working capacity separately of working capacity, n is that the interior current planning of overall region is less than the total number of the photovoltaic plant of working capacity, P _{I_PV_Run}Represent interior i the current planning of overall region less than the working capacity of the photovoltaic plant of working capacity, P _{I_Cur_Plan}Represent interior i the current planning of overall region less than the current planning of the photovoltaic plant of working capacity;

Current planning in the overall region is not less than the photovoltaic plant of working capacity, and it is constant that its current planning is kept in its plan of newly exerting oneself;

3-6) for the limited subregion of each wind-powered electricity generation, according to step 3-4) in current control type be the plan of newly exerting oneself that the computational methods in subregion when control are calculated each photovoltaic plant;

For the not limited subregion of each wind-powered electricity generation, current planning is wherein calculated its plan of newly exerting oneself as follows less than the photovoltaic plant of working capacity:

$P_{E\_\mathrm{NewPlan}}=\min (P_{E\_\mathrm{Cur}\_\mathrm{Plan}}+\frac{P_{\mathrm{Set}\_\mathrm{Area}\_\mathrm{Add}}*(P_{E\_\mathrm{PV}\_\mathrm{Run}}-P_{E\_\mathrm{Cur}\_\mathrm{Plan}})}{{\mathrm{\Σ}}_{i=1}^m(P_{i\_\mathrm{Area}\_\mathrm{PV}\_\mathrm{Run}}-P_{i\_\mathrm{Area}\_\mathrm{Cur}\_\mathrm{Plan}})},P_{E\_\mathrm{PV}\_\mathrm{Run}})$

In the formula, P _{E_NewPlan}Represent interior each current planning of the not limited subregion of each wind-powered electricity generation less than the photovoltaic plant plan of newly exerting oneself separately of working capacity, P _{E_Cur_Plan}Represent interior each current planning of the not limited subregion of each wind-powered electricity generation less than the photovoltaic plant current planning separately of working capacity, P _{E_PV_Run}Represent in the not limited subregion of each wind-powered electricity generation each current planning less than the photovoltaic plant working capacity separately of working capacity, m represents in the not limited subregion of each wind-powered electricity generation separately current planning less than the total number of the photovoltaic plant of working capacity, P _{I_Area_PV_Run}Represent interior i the current planning of the not limited subregion of each wind-powered electricity generation less than the working capacity of the photovoltaic plant of working capacity, P _{I_Area_Cur_Plan}Represent interior i the current planning of the not limited subregion of each wind-powered electricity generation less than the current planning of the photovoltaic plant of working capacity;

For the not limited subregion of each wind-powered electricity generation, current planning wherein is not less than the photovoltaic plant of working capacity, it is constant that its current planning is kept in its plan of newly exerting oneself.

Images