CN110503233A - A kind of interconnected power network peak regulation optimization method and device - Google Patents
A kind of interconnected power network peak regulation optimization method and device Download PDFInfo
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Abstract
The present invention provides a kind of interconnected power network peak regulation optimization method and device, obtains and multiple provides the peak regulation curve of each unit in regions, in a few days plan power output and multiple demand region peak regulation demands；By the peak regulation curve for providing each unit in region, in a few days plan power output and demand region peak regulation demand and provide region and the topological relation of demand region brings the peak regulation Optimized model constructed in advance into, carry out the peak regulation amount that each unit in each offer region is provided, it can effectively realize trans-regional peak regulation, new energy consumption effect is improved, wind-abandoning phenomenon is reduced；The peak regulation Optimized model that the present invention constructs can be applied to trans-regional peak regulation, can be realized interregional peak regulation optimization；Technical solution provided by the invention can provide the consumption space of clean energy resource for demand region, dissolved using peak load regulation network resource in larger scope, realize distributing rationally for resource.
Description
Technical field
The present invention relates to field of new energy technologies, and in particular to a kind of interconnected power network peak regulation optimization method and device.
Background technique
Geographically distributed pole is uneven with electric load for clean energy resource resource, utilizes remote, large capacity transmission route
Generation assets with waterpower abundant, wind-force, solar energy resources area are delivered to load center, are that the alleviation energy is contradictory
Important means.By taking China as an example, NW China, the waterpower of southwest, wind-force, solar energy resources are abundant, utilize above-mentioned area
Clean energy resource resource abundant can be the power load centers energy supply such as Chinese Central China, East China, can be very good to alleviate Chinese energy
Source contradiction.
Ancillary service is to safeguard safe and stable operation of power system, guarantee power quality, promote the important of new energy consumption
It ensures, generally includes AGC frequency modulation, peak regulation, spare, reactive compensation and black starting-up etc..Clean energy resource outside for receiving area needs
Peak regulation service to be locally provided, conventional power unit power output is reduced, when local peak regulation inadequate resource, needs to disappear to clean energy resource
It receives, reduces abandonment.
The side that peak regulation compensation carries out transregional peak regulation optimization is provided to demand region using based on offer region in the prior art
Method provides region there are peak regulation and participates in the not high possibility of peak regulation enthusiasm, and transregional peak regulation effect of optimization is poor, and wind-abandoning phenomenon is more tight
Weight.
Summary of the invention
In order to overcome the shortcomings of that transregional peak regulation effect of optimization difference and wind-abandoning phenomenon are more serious in the prior art, the present invention is mentioned
For a kind of interconnected power network peak regulation optimization method and device, multiple peak regulation curves of each unit in regions, in a few days of providing are obtained
Plan power output and multiple demand region peak regulation demands；By the peak regulation curve for providing each unit in region, in a few days plan
It is excellent that the topological relation of power output and demand region peak regulation demand and offer region and demand region brings the peak regulation constructed in advance into
Change model, carries out the peak regulation amount that each unit in each offer region is provided, can effectively realize trans-regional peak regulation, improve new
Energy consumption effect, reduces wind-abandoning phenomenon.
In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme that:
On the one hand, the present invention provides a kind of interconnected power network peak regulation optimization method, comprising:
The peak regulation curve of each unit, in a few days plan power output and multiple demand region peak regulations need in multiple offer regions are provided
The amount of asking；
By the peak regulation curve for providing each unit in region, in a few days plan power output and demand region peak regulation demand with
And the topological relation of region and demand region is provided and brings the peak regulation Optimized model constructed in advance into, it carries out that each offer area is calculated
The peak regulation amount of each unit in domain.
The peak regulation Optimized model includes objective function, Unit commitment, the constraint of peak regulation amount and trend constraint；
Wherein, the Unit commitment includes unit output adjustment constraint, the constraint of power output bound and Climing constant；
The peak regulation amount constraint includes the constraint of peak regulation amount limit value, peak regulation amount equality constraint, peak regulation amount conservation constraints and peak regulation
Measure Constraints of Equilibrium；
The trend constraint includes dominant eigenvalues variation constraint and offer regional power grid security constraint.
The peak regulation curve of the unit includes: unit every section of peak regulation quotation and peak capacity in day part.
The objective function determines as the following formula:
MinF=∑h,i,k,tbh,i,k,t·dh,i,k,t
In formula, F is target function value, bh,i,k,tIt offers to provide kth section peak regulation of the unit i in period t in the h of region,
dh,i,k,tTo provide in the h of region unit i in the kth section peak regulation amount of moment t.
The unit output adjustment constraint determines as the following formula:
In formula,It contributes to provide in a few days plan of the region h unit i in period t, Ph,i,tExist to provide region h unit i
Power output after the peak regulation optimization of period t, SSh,i,tTo provide region h unit i in the peak regulation amount of period t；
The power output bound constraint determines as the following formula:
Ph,i,min≤Ph,i,t≤Ph,i,max
In formula, Ph,i,maxAnd Ph,i,minThe maximum technology power output and minimum technology power output of region h unit i are respectively provided；
The Climing constant determines as the following formula:
In formula, Ph,i,tTo provide power output of the region h unit i after the peak regulation optimization of period t, Ph,i,t-1To provide region h
Power output of the unit i after the peak regulation optimization of period t-1, RUh,iTo provide the upper creep speed of region h unit i, RDh,iArea is provided
The landslide rate of domain h unit i,To provide region h unit i in the in a few days plan open state of period t,To provide area
In a few days plan open state of the domain h unit i in period t-1, Ph,i,maxAnd Ph,i,minThe maximum skill of region h unit i is respectively provided
Art power output and minimum technology power output.
The peak regulation amount limit value constraint determines as the following formula:
0≤dh,i,k,t≤dk,max
In formula, dh,i,k,tTo provide region h unit i in the kth section peak regulation amount of period t, dk,maxFor kth section peak capacity；
The peak regulation amount equality constraint determines as the following formula:
In formula, SSh,i,tTo provide region h unit i in the peak regulation amount of period t, Sh,j,tTo be provided when not considering communication relationship
The peak regulation amount that region h provides demand region j,To provide the region h tune provided demand region j when considering communication relationship
Peak amount, when having communication relationship between region h and demand region j is provided,OtherwiseTo provide area
Interconnection state between domain h and demand region j；
The peak regulation amount conservation constraints determine as the following formula:
The peak regulation amount Constraints of Equilibrium determines as the following formula:
In formula,To provide the region h peak regulation amount provided in period t demand region j, X when considering communication relationshipj,t
For demand region j period t peak regulation demand.
It is describedIt is determined based on the topological structure of electric provided between region and demand region, when offer region h and demand
When having interconnection between the j of region,It is 1, is otherwise 0.
The dominant eigenvalues variation constraint determines as the following formula:
In formula,To provide the interconnection g between region h and demand region j in the planned transmission power of period t,
For interconnection g period t peak regulation optimization after power,Exist to provide region h after consideration communication relationship to demand region j
The peak regulation amount that period t provides, (h, j) ∈ g indicate relevant to interconnection g and provide the combination in region and demand region；
The offer regional power grid security constraint determines as the following formula:
In formula,To provide the plan trend of route l in region, Fl,minUnder conveying trend to provide route l in region
Limit, Fl,maxTo provide the conveying trend upper limit of route l in region；Ml,h,iIt is clever to the trend for providing unit i in the h of region for route l
Sensitivity, Ml,gTrend sensitivity for route l to interconnection g；Ph,i,tTo provide region h unit i after the peak regulation optimization of period t
Power output,It contributes to provide in a few days plan of the region h unit i in period t.
It is described by the peak regulation curve for providing each unit in region, in a few days plan power output and demand region peak regulation demand
The topological relation of amount and offer region and demand region brings the peak regulation Optimized model constructed in advance into, is calculated and is respectively mentioned
For the peak regulation amount of unit each in region, include:
Using Linear Programming peak regulation Optimized model.
On the other hand, the present invention provides a kind of interconnected power network peak regulation optimization device, comprising:
Obtain module, for obtain it is multiple offer regions in each unit peak regulation curves quotation, in a few days plan power output and
Multiple demand region peak regulation demand information amounts；
Solve module, for by the peak regulation curve for providing each unit in region, in a few days plan power output and desired region
The topological relation of domain peak regulation demand information and offer region and demand region brings the peak regulation optimization mould for solving and constructing in advance into
Type carries out the peak regulation amount that each unit in each offer region is calculated.
Described device further includes building module, and the peak regulation Optimized model of the building module building includes objective function, machine
Group constraint, the constraint of peak regulation amount and trend constraint；
Wherein, the Unit commitment includes unit output adjustment constraint, the constraint of power output bound and Climing constant；
The peak regulation amount constraint includes the constraint of peak regulation amount limit value, peak regulation amount equality constraint, peak regulation amount conservation constraints and peak regulation
Measure Constraints of Equilibrium；
The trend constraint includes dominant eigenvalues variation constraint and offer regional power grid security constraint.
The peak regulation curve of the unit includes: unit every section of peak regulation quotation and peak capacity in day part.
The building module determines the objective function as the following formula:
MinF=∑h,i,k,tbh,i,k,t·dh,i,k,t
In formula, F is target function value, bh,i,k,tIt offers to provide kth section peak regulation of the unit i in period t in the h of region,
dh,i,k,tTo provide in the h of region unit i in the kth section peak regulation amount of moment t.
The building module determines unit output adjustment constraint as the following formula:
In formula,It contributes to provide in a few days plan of the region h unit i in period t, Ph,i,tExist to provide region h unit i
Power output after the peak regulation optimization of period t, SSh,i,tTo provide region h unit i in the peak regulation amount of period t；
The building module determines power output bound constraint as the following formula:
Ph,i,min≤Ph,i,t≤Ph,i,max
In formula, Ph,i,maxAnd Ph,i,minThe maximum technology power output and minimum technology power output of region h unit i are respectively provided；
The building module determines Climing constant as the following formula:
In formula, Ph,i,tTo provide power output of the region h unit i after the peak regulation optimization of period t, Ph,i,t-1To provide region h
Power output of the unit i after the peak regulation optimization of period t-1, RUh,iTo provide the upper creep speed of region h unit i, RDh,iArea is provided
The landslide rate of domain h unit i,To provide region h unit i in the in a few days plan open state of period t,To provide area
In a few days plan open state of the domain h unit i in period t-1, Ph,i,maxAnd Ph,i,minThe maximum skill of region h unit i is respectively provided
Art power output and minimum technology power output.
The building module determines the constraint of peak regulation amount limit value as the following formula:
0≤dh,i,k,t≤dk,max
In formula, dh,i,k,tTo provide region h unit i in the kth section peak regulation amount of period t, dk,maxFor kth section peak capacity；
The building module determines peak regulation amount equality constraint as the following formula:
In formula, SSh,i,tTo provide region h unit i in the peak regulation amount of period t, Sh,j,tTo be provided when not considering communication relationship
The peak regulation amount that region h provides demand region j,To provide the region h tune provided demand region j when considering communication relationship
Peak amount, when having communication relationship between region h and demand region j is provided,OtherwiseTo provide area
Interconnection state, described between domain h and demand region jIn providing, the topological structure of electric between region and demand region is true
It is fixed, when providing has interconnection between region h and demand region j,It is 1, is otherwise 0；
The building module determines peak regulation amount conservation constraints as the following formula:
The building module determines peak regulation amount Constraints of Equilibrium as the following formula:
In formula,To provide the region h peak regulation amount provided in period t demand region j, X when considering communication relationshipj,t
For demand region j period t peak regulation demand.
The building module determines dominant eigenvalues variation constraint as the following formula:
In formula,To provide the interconnection g between region h and demand region j in the planned transmission power of period t,
For interconnection g period t peak regulation optimization after power,Exist to provide region h after consideration communication relationship to demand region j
The peak regulation amount that period t provides, (h, j) ∈ g indicate relevant to interconnection g and provide the combination in region and demand region；For
Consider to provide the h peak regulation amount that demand region j is provided in period t in region when communication relationship；
The building module determines as the following formula provides regional power grid security constraint:
In formula,To provide the plan trend of route l in region, Fl,minUnder conveying trend to provide route l in region
Limit, Fl,maxTo provide the conveying trend upper limit of route l in region；Ml,h,iIt is clever to the trend for providing unit i in the h of region for route l
Sensitivity, Ml,gTrend sensitivity for route l to interconnection g；Ph,i,tTo provide region h unit i after the peak regulation optimization of period t
Power output,It contributes to provide in a few days plan of the region h unit i in period t.
The solution module is specifically used for:
Using Linear Programming peak regulation Optimized model.
Compared with the immediate prior art, technical solution provided by the invention is had the advantages that
In interconnected power network peak regulation optimization method provided by the invention, the peak regulation of each unit in multiple offer regions is obtained
Curve, in a few days plan power output and multiple demand region peak regulation demands；The peak regulation curve, in a few days of each unit in region will be provided
The topological relation of plan power output and demand region peak regulation demand and offer region and demand region brings the tune constructed in advance into
Peak Optimized model carries out the peak regulation amount that each unit in each offer region is calculated, can effectively realize trans-regional peak regulation, improve
New energy dissolves effect, reduces wind-abandoning phenomenon；
By solving the peak regulation amount of unit in the available offer region of peak regulation Optimized model that the present invention constructs, providing area
The power after the interconnection peak regulation optimization between power output and offer region and demand region in domain after peak load regulation optimization, should
Peak regulation Optimized model can be applied to trans-regional peak regulation, can be realized interregional peak regulation optimization；
Technical solution provided by the invention can provide the consumption space of clean energy resource for demand region, and utilization is wider
Interior peak load regulation network resource is dissolved, and realizes distributing rationally for resource.
Detailed description of the invention
Fig. 1 is mid span area peak load regulation network optimization method flow chart of the embodiment of the present invention；
Fig. 2 is regional power grid system diagram in the embodiment of the present invention；
Fig. 3 is peak capacity demand schematic diagram in the embodiment of the present invention；
Fig. 4 is to plan power output schematic diagram in the embodiment of the present invention in unit G1 respective day；
Fig. 5 is to plan power output schematic diagram in the embodiment of the present invention in unit G2 respective day；
Fig. 6 is to plan power output schematic diagram in the embodiment of the present invention in unit G3 respective day；
Fig. 7 is unit G1 peak regulation optimization front and back power output comparison diagram in the embodiment of the present invention；
Fig. 8 is unit G2 peak regulation optimization front and back power output comparison diagram in the embodiment of the present invention；
Fig. 9 is unit G3 peak regulation optimization front and back power output comparison diagram in the embodiment of the present invention；
Figure 10 is that peak regulation optimizes marginal price curve graph in the embodiment of the present invention；
Figure 11 is interconnection S11 power peak regulation optimization front and back comparison diagram in the embodiment of the present invention；
Figure 12 is interconnection S12 power peak regulation optimization front and back comparison diagram in the embodiment of the present invention；
Figure 13 is interconnection S21 power peak regulation optimization front and back comparison diagram in the embodiment of the present invention；
Figure 14 is interconnection S22 power peak regulation optimization front and back comparison diagram in the embodiment of the present invention；
Figure 15 is interconnection S32 power peak regulation optimization front and back comparison diagram in the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
Region (i.e. peak load regulation network offer region) is provided to peak regulation from demand region (i.e. peaking demand of power grid region) to provide
Peak regulation compensation.When demand region peak modulation capacity deficiency, region drop power output is provided, peak capacity is provided, but generated energy is lacked in this part
Substitute generation is actually carried out by demand region.Demand region obtains electricity and dissolves space.It is insufficient from demand region peak regulation, it mentions
The angle for replacing it to carry out peak regulation for region is set out, and providing region reduces power output, should carry out peak regulation benefit to it by demand region
It repays.It is taken in so demand region obtains generated energy according to rate for incorporation into the power network, to region payment peak regulation compensation is provided, provides machine in region
Group pays the corresponding electricity of acceptance of the bid peak capacity to it according to online price from region power grid and takes in, and providing region reduces out
Power reduces generated energy income, but also obtains peak regulation compensation from demand region, provides whether region is ready that participating in peak regulation depends on
Profit size just has enough power voluntarily to participate in transprovincially adjusting when bigger profit can be obtained by providing region before and after participating in peak regulation
Peak.Then, the embodiment of the present invention 1 provides the premise that peak regulation compensates to region is provided based on demand region, provides a kind of transregional
Domain peak load regulation network optimization method, specific flow chart is as shown in Figure 1, detailed process is as follows:
S101: the peak regulation curve of each unit, in a few days plan power output and multiple demand regions in multiple offer regions are obtained
Peak regulation demand；
S102: by the peak regulation curve for providing each unit in region, in a few days plan is contributed and demand region peak regulation demand
And the topological relation of region and demand region is provided and brings the peak regulation Optimized model constructed in advance into, it carries out that each offer is calculated
The peak regulation amount of each unit in region.
Peak regulation Optimized model includes objective function, Unit commitment, the constraint of peak regulation amount and trend constraint；
Unit commitment includes unit output adjustment constraint, the constraint of power output bound and Climing constant；
The constraint of peak regulation amount includes that the constraint of peak regulation amount limit value, peak regulation amount equality constraint, peak regulation amount conservation constraints and peak regulation amount are flat
Weighing apparatus constraint；
Trend constraint includes dominant eigenvalues variation constraint and offer regional power grid security constraint.
The peak regulation curve of unit includes: unit every section of peak regulation quotation and peak capacity in day part.
Objective function determines as the following formula:
MinF=∑h,i,k,tbh,i,k,t·dh,i,k,t
In formula, F is target function value, bh,i,k,tIt offers to provide kth section peak regulation of the unit i in period t in the h of region,
dh,i,k,tTo provide in the h of region unit i in the kth section peak regulation amount of moment t.
Unit output adjustment constraint determines as the following formula:
In formula,It contributes to provide in a few days plan of the region h unit i in period t, Ph,i,tExist to provide region h unit i
Power output after the peak regulation optimization of period t, SSh,i,tTo provide region h unit i in the peak regulation amount of period t；
Power output bound constraint determines as the following formula:
Ph,i,min≤Ph,i,t≤Ph,i,max
In formula, Ph,i,maxAnd Ph,i,minThe maximum technology power output and minimum technology power output of region h unit i are respectively provided；
Climing constant determines as the following formula:
In formula, Ph,i,tTo provide power output of the region h unit i after the peak regulation optimization of period t, Ph,i,t-1To provide region h
Power output of the unit i after the peak regulation optimization of period t-1, RUh,iTo provide the upper creep speed of region h unit i, RDh,iArea is provided
The landslide rate of domain h unit i,To provide region h unit i in the in a few days plan open state of period t, being switched on is 1, is shut down
It is 0；To provide region h unit i in the in a few days plan open state of period t-1, being switched on is 1, and shutting down is 0；Ph,i,maxWith
Ph,i,minThe maximum technology power output and minimum technology power output of region h unit i are respectively provided.
The constraint of peak regulation amount limit value determines as the following formula:
0≤dh,i,k,t≤dk,max
In formula, dh,i,k,tTo provide region h unit i in the kth section peak regulation amount of period t, dk,maxFor kth section peak capacity；
Peak regulation amount equality constraint determines as the following formula:
In formula, SSh,i,tTo provide region h unit i in the peak regulation amount of period t, Sh,j,tTo be provided when not considering communication relationship
The peak regulation amount that region h provides demand region j,To provide the region h tune provided demand region j when considering communication relationship
Peak amount, when having communication relationship between region h and demand region j is provided,OtherwiseTo provide area
Interconnection state between domain h and demand region j；
Peak regulation amount conservation constraints determine as the following formula:
Peak regulation amount Constraints of Equilibrium determines as the following formula:
In formula,To provide the region h peak regulation amount provided in period t demand region j, X when considering communication relationshipj,t
For demand region j period t peak regulation demand.
It is describedIt is determined based on the topological structure of electric provided between region and demand region, when offer region h and demand
When having interconnection between the j of region,It is 1, is otherwise 0.Dominant eigenvalues variation constraint determines as the following formula:
In formula,To provide the interconnection g between region h and demand region j in the planned transmission power of period t,
For interconnection g period t peak regulation optimization after power,Exist to provide region h after consideration communication relationship to demand region j
The peak regulation amount that period t provides, (h, j) ∈ g indicate relevant to interconnection g and provide the combination in region and demand region；
Regional power grid security constraint is provided to determine as the following formula:
In formula,To provide the plan trend of route l in region, Fl,minUnder conveying trend to provide route l in region
Limit, Fl,maxTo provide the conveying trend upper limit of route l in region；Ml,h,iIt is clever to the trend for providing unit i in the h of region for route l
Sensitivity, Ml,gTrend sensitivity for route l to interconnection g；Ph,i,tTo provide region h unit i after the peak regulation optimization of period t
Power output,It contributes to provide in a few days plan of the region h unit i in period t.
By the peak regulation curve for providing each unit in region, in a few days plans power output and demand region peak regulation demand and mention
The peak regulation Optimized model constructed in advance is brought into for the topological relation in region and demand region, is calculated and is not only provided region
The peak regulation amount d of middle unith,i,k,t, while being also provided the power output P in region after peak load regulation optimizationh,i,tAnd provide region
The power after the optimization of interconnection peak regulation between demand region
Embodiment 2
Based on the same inventive concept, the embodiment of the present invention 2 also provides a kind of interconnected power network peak regulation optimization device, below it is right
The function of each component part is described in detail:
Obtain module, for obtain it is multiple offer regions in each unit peak regulation curves quotation, in a few days plan power output and
Multiple demand region peak regulation demand information amounts；
Module is solved, the peak regulation curve of each unit in region, in a few days plan is contributed and demand region tune for that will provide
The topological relation of peak demand information and offer region and demand region brings the peak regulation Optimized model for solving and constructing in advance into, into
The peak regulation amount of each unit in each offer region is calculated in row.
The device that the embodiment of the present invention 2 provides further includes building module, and the peak regulation Optimized model of building module building includes
Objective function, Unit commitment, the constraint of peak regulation amount and trend constraint；
Wherein, Unit commitment includes unit output adjustment constraint, the constraint of power output bound and Climing constant；
The constraint of peak regulation amount includes that the constraint of peak regulation amount limit value, peak regulation amount equality constraint, peak regulation amount conservation constraints and peak regulation amount are flat
Weighing apparatus constraint；
Trend constraint includes dominant eigenvalues variation constraint and offer regional power grid security constraint.
The peak regulation curve of unit includes: unit every section of peak regulation quotation and peak capacity in day part.
It constructs module and determines objective function as the following formula:
MinF=∑h,i,k,tbh,i,k,t·dh,i,k,t
In formula, F is target function value, bh,i,k,tIt offers to provide kth section peak regulation of the unit i in period t in the h of region,
dh,i,k,tTo provide in the h of region unit i in the kth section peak regulation amount of moment t.
It constructs module and determines unit output adjustment constraint as the following formula:
In formula,It contributes to provide in a few days plan of the region h unit i in period t, Ph,i,tExist to provide region h unit i
Power output after the peak regulation optimization of period t, SSh,i,tTo provide region h unit i in the peak regulation amount of period t；
It constructs module and determines power output bound constraint as the following formula:
Ph,i,min≤Ph,i,t≤Ph,i,max
In formula, Ph,i,maxAnd Ph,i,minThe maximum technology power output and minimum technology power output of region h unit i are respectively provided；
It constructs module and determines Climing constant as the following formula:
In formula, Ph,i,tTo provide power output of the region h unit i after the peak regulation optimization of period t, Ph,i,t-1To provide region h
Power output of the unit i after the peak regulation optimization of period t-1, RUh,iTo provide the upper creep speed of region h unit i, RDh,iArea is provided
The landslide rate of domain h unit i,To provide region h unit i in the in a few days plan open state of period t,To provide area
In a few days plan open state of the domain h unit i in period t-1, Ph,i,maxAnd Ph,i,minThe maximum skill of region h unit i is respectively provided
Art power output and minimum technology power output.
It constructs module and determines peak regulation amount equality constraint as the following formula:
In formula, SSh,i,tTo provide region h unit i in the peak regulation amount of period t, dh,i,k,tFor provide region h unit i when
Carve the kth section peak regulation amount of t；Sh,j,tTo provide the h peak regulation amount provided demand region j in region when not considering communication relationship,
To provide the region h peak regulation amount provided demand region j when considering communication relationship, there is connection between region h and demand region j is provided
When network relationship,OtherwiseTo provide interconnection state between region h and demand region j,Base
Determine there is interconnection when providing between region h and demand region j in providing the topological structure of electric between region and demand region
When,It is 1, is otherwise 0；
It constructs module and determines peak regulation amount conservation constraints as the following formula:
It constructs module and determines peak regulation amount Constraints of Equilibrium as the following formula:
In formula,To provide the region h peak regulation amount provided in period t demand region j, X when considering communication relationshipj,t
For demand region j period t peak regulation demand.
It constructs module and determines dominant eigenvalues variation constraint as the following formula:
In formula,To provide the interconnection g between region h and demand region j in the planned transmission power of period t,
For interconnection g period t peak regulation optimization after power,Exist to provide region h after consideration communication relationship to demand region j
The peak regulation amount that period t provides, (h, j) ∈ g indicate relevant to interconnection g and provide the combination in region and demand region；For
Consider to provide the h peak regulation amount that demand region j is provided in period t in region when communication relationship；
It constructs module and offer regional power grid security constraint is provided as the following formula:
In formula,To provide the plan trend of route l in region, Fl,minUnder conveying trend to provide route l in region
Limit, Fl,maxTo provide the conveying trend upper limit of route l in region；Ml,h,iIt is clever to the trend for providing unit i in the h of region for route l
Sensitivity, Ml,gTrend sensitivity for route l to interconnection g；Ph,i,tTo provide region h unit i after the peak regulation optimization of period t
Power output,It contributes to provide in a few days plan of the region h unit i in period t.
Module is solved to be specifically used for:
Using Linear Programming peak regulation Optimized model, is calculated and be also provided in region after peak load regulation optimization
Power output and the power after interconnection peak regulation optimization between region and demand region is provided.
Embodiment 3
In the embodiment of the present invention 3, regional power grid system diagram is as shown in Fig. 2, the offer for participating in transregional peak regulation saves S1, S2, S3
Respectively there are 3 units respectively, i.e. offer region there are 9 units, is calculating day 00:15-04:00, i.e. 1-16 period, A is saved and B is saved
It was found that peak modulation capacity is insufficient, two provinces declare the peak capacity demand of 16 periods as demand region, as shown in Figure 3.
For providing and save S1, province's machine set of segmentation is provided and declares in a few days peak regulation curve, peak load regulation capacity 10% is one section
(can divide in each period according to peak load regulation capacity 10% for multistage), segmentation must be piecewise according to price increases mode when offering
It declares.The quotation of 16 periods is all the same.It provides and saves the respective power output of unit G1, unit G2, unit G3 in S1 such as the institute of Fig. 4,5,6
Show, the respective segmentation declared value of unit G1, unit G2, unit G3 is as shown in table 1,2,3.
Table 1
| Segment number | Initial capacity/MW | Terminate capacity/MW | Quotation/(member/MW) |
| 1 | 0 | 30 | 60 |
| 2 | 30 | 60 | 100 |
| 3 | 60 | 90 | 155 |
Table 2
| Segment number | Initial capacity/MW | Terminate capacity/MW | Quotation/(member/MW) |
| 1 | 0 | 40 | 230 |
| 2 | 40 | 80 | 280 |
| 3 | 80 | 120 | 320 |
Table 3
| Segment number | Initial capacity/MW | Terminate capacity/MW | Quotation/(member/MW) |
| 1 | 0 | 40 | 100 |
| 2 | 40 | 80 | 160 |
| 3 | 80 | 120 | 220 |
| 4 | 120 | 160 | 250 |
| 5 | 160 | 200 | 300 |
It is connected to the network situation between demand province according to providing to save, is determined between offer region and demand region such as following formula
Communication relationship matrix:
In formula, behavior provides province, is classified as demand province, such asTo provide the contact situation between province S1 and demand province X1, when
Province S1 is provided and demand saves when having interconnection between X1,It is 1, when providing province S1 and demand saves between X1 without interconnection,
It is 0.So having in the present embodiment 3
Each after peak regulation optimizes to provide the peak regulation amount result such as table 4 saved, unit output compares for providing province S1,
Power output comparison is as shown in Fig. 7,8,9 before and after unit G1, unit G2, unit G3 peak regulation.
Table 4
Peak regulation optimization marginal price curve is as shown in Figure 10, and dominant eigenvalues change between peak regulation optimization front and back saves, and joins
Winding thread power peak regulation optimization front and back comparison is respectively as shown in Figure 11,12,13,14,15.
For convenience of description, each section of apparatus described above is divided into various modules with function or unit describes respectively.
Certainly, each module or the function of unit can be realized in same or multiple softwares or hardware when implementing the application.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
The those of ordinary skill in category field can still modify to a specific embodiment of the invention referring to above-described embodiment or
Equivalent replacement, these are applying for this pending hair without departing from any modification of spirit and scope of the invention or equivalent replacement
Within bright claims.
Claims (17)
1. a kind of interconnected power network peak regulation optimization method characterized by comprising
The peak regulation curve of each unit, in a few days plan power output and multiple demand region peak regulation demands in multiple offer regions are provided
Amount；
By the peak regulation curve for providing each unit in region, in a few days plans power output and demand region peak regulation demand and mention
The peak regulation Optimized model constructed in advance is brought into for the topological relation in region and demand region, be calculated in each offer region
The peak regulation amount of each unit.
2. interconnected power network peak regulation optimization method according to claim 1, which is characterized in that the peak regulation Optimized model packet
Include objective function, Unit commitment, the constraint of peak regulation amount and trend constraint；
Wherein, the Unit commitment includes unit output adjustment constraint, the constraint of power output bound and Climing constant；
The peak regulation amount constraint includes that the constraint of peak regulation amount limit value, peak regulation amount equality constraint, peak regulation amount conservation constraints and peak regulation amount are flat
Weighing apparatus constraint；
The trend constraint includes dominant eigenvalues variation constraint and offer regional power grid security constraint.
3. interconnected power network peak regulation optimization method according to claim 2, which is characterized in that the peak regulation curve of the unit
It include: unit every section of peak regulation quotation and peak capacity in day part.
4. interconnected power network peak regulation optimization method according to claim 3, which is characterized in that the objective function is as the following formula
It determines:
Min F=∑h,i,k,tbh,i,k,t·dh,i,k,t
In formula, F is target function value, bh,i,k,tIt offers to provide kth section peak regulation of the unit i in period t in the h of region, dh,i,k,tFor
Kth section peak regulation amount of the unit i in moment t in offer region h.
5. interconnected power network peak regulation optimization method according to claim 4, which is characterized in that the unit output adjustment is about
Beam determines as the following formula:
In formula,It contributes to provide in a few days plan of the region h unit i in period t, Ph,i,tTo provide region h unit i in period t
Peak regulation optimization after power output, SSh,i,tTo provide region h unit i in the peak regulation amount of period t；
The power output bound constraint determines as the following formula:
Ph,i,min≤Ph,i,t≤Ph,i,max
In formula, Ph,i,maxAnd Ph,i,minThe maximum technology power output and minimum technology power output of region h unit i are respectively provided；
The Climing constant determines as the following formula:
In formula, Ph,i,tTo provide power output of the region h unit i after the peak regulation optimization of period t, Ph,i,t-1To provide region h unit i
Power output after the peak regulation optimization of period t-1, RUh,iTo provide the upper creep speed of region h unit i, RDh,iH machine in region is provided
The landslide rate of group i,To provide region h unit i in the in a few days plan open state of period t,To provide region h machine
In a few days plan open state of the group i in period t-1, Ph,i,maxAnd Ph,i,minThe maximum technology for respectively providing region h unit i goes out
Power and minimum technology power output.
6. interconnected power network peak regulation optimization method according to claim 4, which is characterized in that the peak regulation amount limit value constraint
It determines as the following formula:
0≤dh,i,k,t≤dk,max
In formula, dh,i,k,tTo provide region h unit i in the kth section peak regulation amount of period t, dk,maxFor kth section peak capacity；
The peak regulation amount equality constraint determines as the following formula:
In formula, SSh,i,tTo provide region h unit i in the peak regulation amount of period t, Sh,j,tTo provide region h when not considering communication relationship
To demand region j provide peak regulation amount,To provide the region h peak regulation amount provided demand region j when considering communication relationship,
When having communication relationship between region h and demand region j is provided,Otherwise For provide region h with
Interconnection state between demand region j；
The peak regulation amount conservation constraints determine as the following formula:
The peak regulation amount Constraints of Equilibrium determines as the following formula:
In formula,To provide the region h peak regulation amount provided in period t demand region j, X when considering communication relationshipj,tFor demand
Peak regulation demand of the region j in period t.
7. interconnected power network peak regulation optimization method according to claim 6, which is characterized in that describedBased on offer area
Topological structure of electric between domain and demand region determines, when providing has interconnection between region h and demand region j,For
1, it is otherwise 0.
8. interconnected power network peak regulation optimization method according to claim 5, which is characterized in that the dominant eigenvalues variation
Constraint determines as the following formula:
In formula,To provide the interconnection g between region h and demand region j in the planned transmission power of period t,For connection
Power of the winding thread g after the peak regulation optimization of period t,To provide region h to demand region j in the period after consideration communication relationship
The peak regulation amount that t is provided, (h, j) ∈ g indicate relevant to interconnection g and provide the combination in region and demand region；
The offer regional power grid security constraint determines as the following formula:
In formula, Fl 0To provide the plan trend of route l in region, Fl,minTo provide the conveying trend lower limit of route l in region,
Fl,maxTo provide the conveying trend upper limit of route l in region；Ml,h,iIt is sensitive to the trend for providing unit i in the h of region for route l
Degree, Ml,gTrend sensitivity for route l to interconnection g；Ph,i,tTo provide region h unit i after the peak regulation optimization of period t
Power output,It contributes to provide in a few days plan of the region h unit i in period t.
9. interconnected power network peak regulation optimization method according to claim 1, which is characterized in that described to provide region for described
In each unit peak regulation curve, in a few days plan power output and demand region peak regulation demand and provide region and demand region
Topological relation brings the peak regulation Optimized model constructed in advance into, carries out the peak regulation amount that each unit in each offer region is calculated, packet
It includes:
Using Linear Programming peak regulation Optimized model.
10. a kind of interconnected power network peak regulation optimizes device characterized by comprising
Module is obtained, the peak regulation curve for obtaining each unit in multiple offer regions is offered, in a few days plan is contributed and multiple
Demand region peak regulation demand information amount；
Solve module, for by the peak regulation curve for providing each unit in region, in a few days plan power output and demand region tune
The topological relation of peak demand information and offer region and demand region brings the peak regulation Optimized model for solving and constructing in advance into, into
The peak regulation amount of each unit in each offer region is calculated in row.
11. interconnected power network peak regulation according to claim 10 optimizes device, which is characterized in that described device further includes structure
Model block, it is described building module building peak regulation Optimized model include objective function, Unit commitment, peak regulation amount constraint and trend about
Beam；
Wherein, the Unit commitment includes unit output adjustment constraint, the constraint of power output bound and Climing constant；
The peak regulation amount constraint includes that the constraint of peak regulation amount limit value, peak regulation amount equality constraint, peak regulation amount conservation constraints and peak regulation amount are flat
Weighing apparatus constraint；
The trend constraint includes dominant eigenvalues variation constraint and offer regional power grid security constraint.
12. interconnected power network peak regulation according to claim 11 optimizes device, which is characterized in that the peak regulation of the unit is bent
Line includes: unit every section of peak regulation quotation and peak capacity in day part.
13. interconnected power network peak regulation according to claim 12 optimizes device, which is characterized in that the building module is pressed
Formula determines the objective function:
Min F=∑h,i,k,tbh,i,k,t·dh,i,k,t
In formula, F is target function value, bh,i,k,tIt offers to provide kth section peak regulation of the unit i in period t in the h of region, dh,i,k,tFor
Kth section peak regulation amount of the unit i in moment t in offer region h.
14. interconnected power network peak regulation according to claim 13 optimizes device, which is characterized in that the building module is pressed
Formula determines unit output adjustment constraint:
In formula,It contributes to provide in a few days plan of the region h unit i in period t, Ph,i,tTo provide region h unit i in period t
Peak regulation optimization after power output, SSh,i,tTo provide region h unit i in the peak regulation amount of period t；
The building module determines power output bound constraint as the following formula:
Ph,i,min≤Ph,i,t≤Ph,i,max
In formula, Ph,i,maxAnd Ph,i,minThe maximum technology power output and minimum technology power output of region h unit i are respectively provided；
The building module determines Climing constant as the following formula:
In formula, Ph,i,tTo provide power output of the region h unit i after the peak regulation optimization of period t, Ph,i,t-1To provide region h unit i
Power output after the peak regulation optimization of period t-1, RUh,iTo provide the upper creep speed of region h unit i, RDh,iH machine in region is provided
The landslide rate of group i,To provide region h unit i in the in a few days plan open state of period t,To provide region h machine
In a few days plan open state of the group i in period t-1, Ph,i,maxAnd Ph,i,minThe maximum technology for respectively providing region h unit i goes out
Power and minimum technology power output.
15. interconnected power network peak regulation according to claim 13 optimizes device, which is characterized in that the building module is pressed
Formula determines that peak regulation amount limit value constrains:
0≤dh,i,k,t≤dk,max
In formula, dh,i,k,tTo provide region h unit i in the kth section peak regulation amount of period t, dk,maxFor kth section peak capacity；
The building module determines peak regulation amount equality constraint as the following formula:
In formula, SSh,i,tTo provide region h unit i in the peak regulation amount of period t, Sh,j,tTo provide region h when not considering communication relationship
To demand region j provide peak regulation amount,To provide the region h peak regulation amount provided demand region j when considering communication relationship,
When having communication relationship between region h and demand region j is provided,Otherwise For provide region h with
Interconnection state, described between demand region jIt is determined based on the topological structure of electric provided between region and demand region,
When providing has interconnection between region h and demand region j,It is 1, is otherwise 0；
The building module determines peak regulation amount conservation constraints as the following formula:
The building module determines peak regulation amount Constraints of Equilibrium as the following formula:
In formula,To provide the region h peak regulation amount provided in period t demand region j, X when considering communication relationshipj,tFor demand
Peak regulation demand of the region j in period t.
16. interconnected power network peak regulation according to claim 14 optimizes device, which is characterized in that the building module is pressed
Formula determines dominant eigenvalues variation constraint:
In formula,To provide the interconnection g between region h and demand region j in the planned transmission power of period t,For connection
Power of the winding thread g after the peak regulation optimization of period t,To provide region h to demand region j in the period after consideration communication relationship
The peak regulation amount that t is provided, (h, j) ∈ g indicate relevant to interconnection g and provide the combination in region and demand region；
The building module determines as the following formula provides regional power grid security constraint:
In formula, Fl 0To provide the plan trend of route l in region, Fl,minTo provide the conveying trend lower limit of route l in region,
Fl,maxTo provide the conveying trend upper limit of route l in region；Ml,h,iIt is sensitive to the trend for providing unit i in the h of region for route l
Degree, Ml,gTrend sensitivity for route l to interconnection g；Ph,i,tTo provide region h unit i after the peak regulation optimization of period t
Power output,It contributes to provide in a few days plan of the region h unit i in period t.
17. interconnected power network peak regulation according to claim 1 optimizes device, which is characterized in that the solution module is specific
For:
Using Linear Programming peak regulation Optimized model.
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