CN110535186A - A kind of medium-term and long-term timing production analogy method and system containing pump-up power station - Google Patents
A kind of medium-term and long-term timing production analogy method and system containing pump-up power station Download PDFInfo
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- CN110535186A CN110535186A CN201910737541.5A CN201910737541A CN110535186A CN 110535186 A CN110535186 A CN 110535186A CN 201910737541 A CN201910737541 A CN 201910737541A CN 110535186 A CN110535186 A CN 110535186A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
Abstract
The invention discloses a kind of medium-term and long-term timing production analogy method and system containing pump-up power station, comprising: chronologically obtain the operation of power networks parameter in each optimization period；The timing production dry run Optimized model constructed based on the operation of power networks parameter and in advance, determines each power station in the power generation situation of each optimization period；Based on each power station in the power generation situation of each optimization period, determines each power station method of operation long-term in future and formulate years months electricity plan；The power station includes: pump-up power station, new energy power station and fired power generating unit；The timing production dry run Optimized model is constructed using maximally utilizing new energy as target combination pumped storage motor extraction water electric energy loss.Optimal operation model provided by the invention containing new energy and pump-up power station considers influence of the loss of pump-up power station extraction water to generation of electricity by new energy amount, improves the accuracy of operation result.
Description
Technical field
The present invention relates to technical field of new energy power generation, and in particular to a kind of medium-term and long-term timing production mould containing pump-up power station
Quasi- method and system.
Background technique
The randomness and intermittence of new energy power output bring very big challenge to the planning and operation of power grid.With new energy
The swift and violent growth of source installed capacity, new energy, which abandons electrical phenomena, to be become more to be serious.By way of the production simulation of new energy timing
The new energy consumption amount for calculating non-coming year provincial power network is determining new energy future annual running mode, formulates years months voltameter
Draw and promote the important technical of new energy consumption.The main reason for new energy abandoning electricity generates includes two aspects: first is that thermoelectricity
Unit booting capacity is excessive, is limited by minimum technology power output, the fired power generating unit more being switched on has tied up the power generation space of new energy；
Second is that when high output occurs in new energy, system lacks consumption space since new energy power output has very strong stochastic volatility.
Hydroenergy storage station is to improve new energy digestion capability, reduce the effective technology means that new energy abandons electricity, is dissolved to new energy
Facilitation major embodiment both ways: first is that the hydroenergy storage station in system have peak power generation effect, can subtract
Few start-up mode to meet the conventional power unit of peakload, and then the minimum technology of fired power generating unit is contributed in reduction system, is
Dissolve new energy vacating space；Second is that the abandoning electric period on new energy power output peak, pump-storage generator can draw water power generation, general
It abandons electricity to store, generate electricity when new energy power output is lower, it is horizontal to promote new energy consumption.Therefore, foundation is suitable for
The pump-up power station optimal operation model that timing production simulation calculates is to realize that pump-up power station promotes the important base of new energy consumption
Plinth.
But a kind of pump-up power station day operation method optimizing method based on limit power generation energy consumption of patent CN201410198715-
The method of middle offer is not suitable for the Operation of Electric Systems optimization problem containing extensive new energy, because judging pumped storage in the patent
The principle whether electricity carries out pumping action is " from the angle of energy saving of system emission reduction, it is contemplated that pump-up power station draws water energy consumption etc.
It draws water and increased other fired power generating unit power generation energy consumptions in supplying it, when the energy consumption of drawing water of pump-up power station is substituted less than its power generation
Other unit generations can be time-consuming, that is, think that the operation of pump-up power station is economic, environmental protection and meets peaking operation optimization principles
", so the technology in the patent cannot achieve the effect for promoting new energy consumption.
Generation of electricity by new energy running optimizatin method and dress in a kind of multiterminal flexible direct current power grid of patent CN201611224474-
It sets, generation of electricity by new energy running optimizatin method and dress in the patent provides a kind of multiterminal flexible direct current power grid containing pump-up power station
It sets, line loss is introduced in the objective function of the patent but is not introduced into the loss of pump-up power station extraction water.
A kind of pump-up power station joint wind-light complementary system of patent CN201710537648- and its optimization method, the patent mention
Generation of electricity by new energy running optimizatin method and apparatus in a kind of multiterminal flexible direct current power grid containing pump-up power station are supplied, but in the patent
Influence of the loss of pump-up power station extraction water to generation of electricity by new energy amount is not considered.
A kind of control method of hydroenergy storage station wide area power-generating control system of patent CN201910030590-, provides
Hydroenergy storage station participates in the control method of power-generating control system, but does not consider the loss pair of pump-up power station extraction water in the patent
The influence of generation of electricity by new energy amount.
Since the current existing optimal operation model containing new energy and pump-up power station does not consider pump-up power station extraction water
Influence of the loss to generation of electricity by new energy amount, therefore obtained operation result will appear and disagree with the actual operating principle of system
The case where back, occurs.
Summary of the invention
In order to solve the above-mentioned deficiency in the presence of the prior art, when the present invention provides a kind of medium-term and long-term containing pump-up power station
Sequence produces analogy method, comprising:
Chronologically obtain the operation of power networks parameter in each optimization period；
The timing production dry run Optimized model constructed based on the operation of power networks parameter and in advance, determines that each power station exists
The power generation situation of each optimization period；
Based on each power station in the power generation situation of each optimization period, each power station method of operation long-term in future and system are determined
Determine years months electricity plan；
The power station includes: pump-up power station, new energy power station and fired power generating unit；The timing production dry run optimizes mould
Type is constructed using maximally utilizing new energy as target combination pumped storage motor extraction water electric energy loss.
Preferably, the building of the timing production dry run Optimized model, comprising:
It is up to target structure all to optimize generation of electricity by new energy amount and the difference of pump-up power station extraction water electric energy loss in the period
Objective function is built, and constructs constraint condition for the objective function；
The constraint condition include: system power Constraints of Equilibrium, generation of electricity by new energy power constraint, new energy ration the power supply constraint and
The constraint of pump-up power station generated output；
Wherein, the pump-up power station generated output is constrained to pumped storage electricity when abandoning electricity condition and new energy abandoning electricity based on new energy
The do not discharge water constraint of power generation of standing is constructed.
Preferably, the objective function, is shown below:
In formula: obj: all optimizing the difference of generation of electricity by new energy amount and pump-up power station extraction water electric energy loss in the period；T: excellent
Change period sum, t=1,2 ..., T；pw(t): the generation of electricity by new energy power of t moment；ps(t): hair of the pump-up power station in t moment
Electrical power；pc(t): pump-up power station draws water power in t moment；Δ t: the duration of each optimization period.
Preferably, the system power Constraints of Equilibrium, is shown below:
In formula:Generated output of i-th fired power generating unit in t moment；I: the whole network fired power generating unit number of units；pf(t): t
Interconnection by electrical power between the power grid at moment and other regions；pw(t): the generation of electricity by new energy power of t moment；ps(t): taking out
Generated output of the electric power storage station in t moment；pc(t): pump-up power station draws water power in t moment；D (t): the system loading of t moment；T:
Optimize period sum.
Preferably, the generation of electricity by new energy power constraint, is shown below:
In formula: pw(t): the generation of electricity by new energy power of t moment；The theoretical maximum generated output of t moment new energy；
T: optimization period sum.
Preferably, the new energy is rationed the power supply constraint, is shown below:
In formula: W (t) is 0-1 variable, indicates that t moment new energy abandons electricity condition, W (t)=1 indicates that new energy is sent out in t moment
Raw to abandon electricity, W (t)=0 indicates that new energy does not occur to abandon electricity in t moment；M: constant；pw(t): the generation of electricity by new energy power of t moment；The theoretical maximum generated output of t moment new energy；T: optimization period sum.
Preferably, the pump-up power station generated output constraint, is shown below:
In formula: xs(t) it is 0-1 variable, indicates the generating state of t moment pump-up power station, xs(t)=1 indicate that pump-up power station exists
T moment is in generating state, xs(t)=0 indicate that pump-up power station is not in generating state in t moment；p s: the minimum of pump-up power station
Generated output；The maximum power generation of pump-up power station；W (t) is 0-1 variable, indicates that t moment new energy abandons electricity condition；T: excellent
Change period sum.
Preferably, the constraint condition, further includes:
Pump-up power station draw water power constraint, pump-up power station storage capacity capacity-constrained, thermal power unit operation constraint and system contact
Linear heat generation rate transmission constraint.
Preferably, the operation of power networks parameter, comprising:
New energy maximum power generation and the whole network load time series data and pump-up power station, thermal motor within the optimization period
Group and interconnecting ties supplemental characteristic.
Preferably, the new energy power station, comprising: Wind turbines and photovoltaic plant.
Based on the same inventive concept, the present invention also provides a kind of, and the medium-term and long-term timing production simulation containing pump-up power station is
System, comprising:
Module is obtained, for chronologically obtaining the operation of power networks parameter in each optimization period；
Determining module, the timing production dry run optimization mould for constructing based on the operation of power networks parameter and in advance
Type determines each power station in the power generation situation of each optimization period；
Schedule module determines that each power station is long-term in future for the power generation situation based on each power station in each optimization period
The method of operation and formulate years months electricity plan；
The power station includes: pump-up power station, new energy power station and fired power generating unit；The timing production dry run optimizes mould
Type is constructed using maximally utilizing new energy as target combination pumped storage motor extraction water electric energy loss.
Preferably, the system also includes:
Module is constructed, for constructing timing production dry run Optimized model；
The building module, comprising:
Construction unit, for the difference all to optimize generation of electricity by new energy amount and pump-up power station extraction water electric energy loss in the period
It is up to target building objective function, is also used to construct constraint condition for the objective function；
The constraint condition include: system power Constraints of Equilibrium, generation of electricity by new energy power constraint, new energy ration the power supply constraint and
The constraint of pump-up power station generated output；
Wherein, the pump-up power station generated output is constrained to pumped storage electricity when abandoning electricity condition and new energy abandoning electricity based on new energy
The do not discharge water constraint of power generation of standing is constructed.
Compared with prior art, the invention has the benefit that
Technical solution provided by the invention obtains the operation of power networks parameter in each optimization period；Based on the operation of power networks
Parameter and the new energy timing production dry run Optimized model containing pump-up power station constructed in advance, obtain pump-up power station and other
Power generation situation and new energy consumption amount of the power supply in each optimization period；Based on the pump-up power station and other power supplys described
The power generation situation and new energy consumption amount at each moment determine the method for operation long-term in new energy future, system in the optimization period
Determine the plan of years months electricity and promotes new energy consumption；Wherein, the new energy timing production dry run containing pump-up power station is excellent
Changing model is, pump-up power station when abandoning electricity condition and new energy abandoning electricity based on the extraction water electric energy loss of pumped storage motor and new energy
The power generation that do not discharge water is constructed, and the optimal operation model provided by the invention containing new energy and pump-up power station considers pump-up power station
Influence of the loss of extraction water to generation of electricity by new energy amount, improves the accuracy of operation result.
Technical solution provided by the invention is taken out by being added in the objective function that timing produces dry run Optimized model
The punishment of electric power storage station pumping, the kwh loss that discharges water, avoids pump-up power station and frequently takes out, discharges water to consume new energy.
Technical solution provided by the invention increases pump-up power station when new energy abandons electricity in optimal operation model and does not discharge water
The constraint of power generation realizes the linearisation of the electric constraint that do not discharge water of abandoning by introducing 0-1 integer variable, so that Optimized model is easy to ask
Solution, and produce analog result and be more consistent with practical operation situation.
Detailed description of the invention
Fig. 1 is a kind of medium-term and long-term timing production analogy method flow chart containing pump-up power station in the present invention；
Fig. 2 is that 1 week new energy abandons electrical power to certain in the embodiment of the present invention, power and capacity reservoir curve are taken out/discharged water to pumped storage
Schematic diagram；
Fig. 3 be in the embodiment of the present invention certain 1 week new energy abandons electrical power, power is taken out/discharged water to pumped storage, fired power generating unit is contributed and
Minimum load curve synoptic diagram.
Specific embodiment
For a better understanding of the present invention, the contents of the present invention are done further with example with reference to the accompanying drawings of the specification
Explanation.
Embodiment 1
The present invention needs to consider two sides when constructing the new energy timing production dry run Optimized model containing pump-up power station
Face factor: first, it needs that pump-up power station is avoided to make by frequent extraction hydrodynamic(al) to improve new energy consumption amount, this is because taking out
Electric power storage station take out, the efficiency that discharges water than about 75%, i.e., when pump-up power station draw water power consumption be 100MWh when, corresponding generated energy is about
For 75MWh, remaining 25MWh electricity is pumping, discharge water loss, which is considered as " load " to a certain extent.Therefore, when with
Generation of electricity by new energy amount is up to target when carrying out the production simulation of new energy timing, to need to carry out the state of drawing water of pump-up power station
Limitation, otherwise pump-up power station can increase the total capacity requirement of system by constantly taking out, discharging water movement, realize consumption new energy
Effect.Second, when new energy occurs to abandon electricity, pump-up power station will avoid being generated electricity to tie up the power generation space of new energy.
However, the existing optimal operation model containing new energy and pump-up power station does not consider above-mentioned two factor, therefore gained at present
To operation result will appear the case where disagreing with the actual operating principle of system.The present invention passes through in optimization aim letter
Pumped storage loss is introduced in number, and 0-1 variable and pump-up power station that additional characterization new energy abandons electricity condition are introduced in constraint condition
Constraint is not generated electricity in the case where abandoning electricity condition to realize above-mentioned modeling target.
As shown in Figure 1, a kind of medium-term and long-term timing containing pump-up power station provided by the invention produces analogy method, comprising:
Step S1, the operation of power networks parameter in each optimization period is chronologically obtained；
Step S2, the timing production dry run Optimized model constructed based on the operation of power networks parameter and in advance, is determined
Power generation situation of each power station in each optimization period；
Step S3, the operation long-term in future of each power station is determined in the power generation situation of each optimization period based on each power station
Mode simultaneously formulates years months electricity plan；
The power station includes: pump-up power station, new energy power station and fired power generating unit；The timing production dry run optimizes mould
Type is constructed using maximally utilizing new energy as target combination pumped storage motor extraction water electric energy loss.
The specific implementation process of the method for the present invention is as follows:
Step S1, the operation of power networks parameter in each optimization period is chronologically obtained, is specifically included:
Theoretical maximum generated output and the whole network load time series data that new energy is inscribed in all optimization are obtained, obtains and takes out
Electric power storage station, fired power generating unit and interconnecting ties supplemental characteristic；
If optimizing period sum is that T, t=1,2 ..., T indicate t-th of period, obtains new energy and all optimizing the moment
Under theoretical maximum generated output and the whole network load time series data, obtain pump-up power station, fired power generating unit and interconnecting ties parameter
Data.
Step S2, the timing production dry run Optimized model constructed based on the operation of power networks parameter and in advance, is determined
Power generation situation of each power station in each optimization period；
Initially set up the new energy timing production dry run Optimized model containing pump-up power station, comprising:
(1) objective function
Objective function is all to optimize generation of electricity by new energy amount and the difference of pump-up power station extraction water electric energy loss maximum in the period,
Mathematic(al) representation is as follows:
In formula, pwIt (t) is the generation of electricity by new energy power of t moment, ps(t) indicate pump-up power station t moment generated output,
pc(t) indicate that pump-up power station draws water power in t moment, Δ t is the duration of each optimization period.It is subtracted in above-mentioned objective function
Pumping, the discharge loss amount of pump-up power station, therefore under the action of maximizing objective function, model optimization result can avoid taking out as far as possible
The frequent extraction hydrodynamic(al) in electric power storage station make brought by electric energy loss, can effectively eliminate pump-up power station by frequent extraction water come
The phenomenon that improving new energy consumption amount.
(2) constraint condition
The main constraint condition of model is as follows:
1) system power Constraints of Equilibrium
In above formula,It is i-th fired power generating unit in the generated output of t moment, I indicates the whole network fired power generating unit number of units, pf
(t) between the power grid and other regions of t moment interconnection by electrical power, d (t) is the system loading of t moment.The restriction table
It is equal with load to show that the generated outputs of all power supplys of the whole network at any time with interconnection is entered the sum of power.
2) generation of electricity by new energy power constraint
In formula,It is the input needed for timing production simulation calculates for t moment new energy theoretical maximum generated output
Data, the constraint representation at any time new energy generated output be not more than its theoretical maximum generating capacity.
3) new energy is rationed the power supply constraint
In formula, W (t) is 0-1 variable, indicates that t moment new energy abandons electricity condition, W (t)=1 indicates that new energy is sent out in t moment
Raw to abandon electricity, W (t)=0 indicates that new energy does not occur to abandon electricity in t moment.M is a sufficiently small constant.
4) pump-up power station generated output constrains
In 1st constraint, xs(t) it is 0-1 variable, indicates the generating state of t moment pump-up power station, xs(t)=1 it indicates to take out
Electric power storage station is in generating state, x in t moments(t)=0 indicate that pump-up power station is not in generating state in t moment.p sWithPoint
Not Biao Shi pump-up power station minimum and maximum generated output.
2nd constraint representation (W (t)=1) pump-up power station when new energy occurs and abandons electricity cannot generate electricity, can be to avoid new energy
Electricity is abandoned and pump-up power station power generation the phenomenon that tying up generation of electricity by new energy space generation in source.
In addition to above-mentioned constraint, this model further includes that pump-up power station draws water power constraint, pump-up power station storage capacity capacity-constrained, fire
Motor group operation constraint, the transmission constraint of system dominant eigenvalues, the present invention are not described in detail one by one.
In conclusion above-mentioned optimization aim and constraint condition are to constitute the new energy timing production simulation containing pump-up power station
Optimal operation model, the model are mixed integer linear programming model.
Then business optimization software Cplex solving optimization model is called, obtains pump-up power station and other power stations at each moment
Power generation situation and new energy consumption amount.
Step S3, the operation long-term in future of each power station is determined in the power generation situation of each optimization period based on each power station
Mode simultaneously formulates years months electricity plan.
The present embodiment carries out test by taking certain regional power grid as an example, 4 weeks a length of, temporal resolution 1h when optimization.The whole network wind
Electric installed capacity 12770MW, Photovoltaic generation installed capacity 6940MW.Power grid contains 1 pump-up power station, configures 4 200MW units,
Maximum is taken out, the power that discharges water is 800MW, and full storage capacity storing electricity is respectively 6000MWh.It is calculated through production simulation, the whole network wind-powered electricity generation is abandoned
Electric rate is 4.18%, and it is 3.12% that photovoltaic, which abandons electric rate,.
Fig. 2 illustrates in certain 1 week that 168h new energy abandons electrical power, power and capacity reservoir curve are taken out/discharged water to pumped storage, can be with
It was found that being effectively reduced new energy by the adjustment effect of pump-up power station and abandoning electricity, and at the time of new energy occurs to abandon electricity
Pump-up power station all drawing water in full power illustrate that maximization benefit has been obtained in the regulating power of pumped storage at the time of occurring to abandon electricity
With.
Fig. 3 illustrates certain, and 1 week new energy abandons electrical power, power is taken out/discharged water to pumped storage, fired power generating unit power output and minimum load are bent
Line, it is found that at the time of pump-up power station draws water, it is horizontal to be that fired power generating unit power output has reached minimum technology power output, and
When fired power generating unit power output is higher than minimum technology power output, pump-up power station does not draw water, this illustrates that pump-up power station does not pass through excessively frequency
Numerous extraction hydrodynamic(al) is made to dissolve new energy.
In addition, from the figure 3, it may be seen that fired power generating unit, which is contributed, has reached minimum technology power output level, and pumped storage at the moment 67 to 72
Power station is also generated electricity, this illustrates that pump-up power station realizes the effect of peak power generation.Result above demonstrates the present invention and is mentioned
The validity of method out.
The method provided in patent CN201410198715 is not suitable for the Operation of Electric Systems containing extensive new energy
Optimization problem, because new energy is clean energy resource compared with thermoelectricity, it is believed that it is the energy consumption that do not generate electricity, thus in the application
In design, when new energy occurs to abandon electricity, pump-up power station is not will do it pumping action, and energy consumption is higher than new energy certainly
Power generation realizes the effect for promoting new energy consumption.
Embodiment 2
Based on the same inventive concept, the embodiment of the invention also provides a kind of, and the medium-term and long-term timing containing pump-up power station produces mould
Quasi- system, comprising:
Module is obtained, for chronologically obtaining the operation of power networks parameter in each optimization period；
Determining module, the timing production dry run optimization mould for constructing based on the operation of power networks parameter and in advance
Type determines each power station in the power generation situation of each optimization period；
Schedule module determines that each power station is long-term in future for the power generation situation based on each power station in each optimization period
The method of operation and formulate years months electricity plan；
The power station includes: pump-up power station, new energy power station and fired power generating unit；The timing production dry run optimizes mould
Type is constructed using maximally utilizing new energy as target combination pumped storage motor extraction water electric energy loss.
In embodiment, the system also includes:
Module is constructed, for constructing timing production dry run Optimized model；
The building module, comprising:
Construction unit, for the difference all to optimize generation of electricity by new energy amount and pump-up power station extraction water electric energy loss in the period
It is up to target building objective function, is also used to construct constraint condition for the objective function；
The constraint condition include: system power Constraints of Equilibrium, generation of electricity by new energy power constraint, new energy ration the power supply constraint and
The constraint of pump-up power station generated output；
Wherein, the pump-up power station generated output is constrained to pumped storage electricity when abandoning electricity condition and new energy abandoning electricity based on new energy
The do not discharge water constraint of power generation of standing is constructed.
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.
The above is only the embodiment of the present invention, are not intended to restrict the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution, improvement and etc. done, be all contained in apply pending scope of the presently claimed invention it
It is interior.
Claims (12)
1. a kind of medium-term and long-term timing containing pump-up power station produces analogy method characterized by comprising
Chronologically obtain the operation of power networks parameter in each optimization period；
The timing production dry run Optimized model constructed based on the operation of power networks parameter and in advance, determines each power station each excellent
Change the power generation situation of period；
Based on each power station in the power generation situation of each optimization period, each power station method of operation long-term in future and formulation are determined
Years months electricity plan；
The power station includes: pump-up power station, new energy power station and fired power generating unit；Timing production dry run Optimized model with
Maximally utilizing new energy is that the extraction water electric energy loss of target combination pumped storage motor is constructed.
2. the method as described in claim 1, which is characterized in that the building of the timing production dry run Optimized model, packet
It includes:
It is up to target building mesh all to optimize generation of electricity by new energy amount and the difference of pump-up power station extraction water electric energy loss in the period
Scalar functions, and constraint condition is constructed for the objective function；
The constraint condition includes: that system power Constraints of Equilibrium, generation of electricity by new energy power constraint, new energy are rationed the power supply constraint and pumped storage
The constraint of power station generated output；
Wherein, the pump-up power station generated output, which is constrained to, abandons when electricity condition and new energy abandon electricity pump-up power station not based on new energy
The constraint of power generation of discharging water is constructed.
3. method according to claim 2, which is characterized in that the objective function is shown below:
In formula: obj: all optimizing the difference of generation of electricity by new energy amount and pump-up power station extraction water electric energy loss in the period；T: when optimization
Section sum, t=1,2 ..., T；pw(t): the generation of electricity by new energy power of t moment；ps(t): power generation function of the pump-up power station in t moment
Rate；pc(t): pump-up power station draws water power in t moment；Δ t: the duration of each optimization period.
4. method according to claim 2, which is characterized in that the system power Constraints of Equilibrium is shown below:
In formula:Generated output of i-th fired power generating unit in t moment；I: the whole network fired power generating unit number of units；pf(t): t moment
Interconnection by electrical power between power grid and other regions；pw(t): the generation of electricity by new energy power of t moment；ps(t): pump-up power station
In the generated output of t moment；pc(t): pump-up power station draws water power in t moment；D (t): the system loading of t moment；T: when optimization
Section sum.
5. method according to claim 2, which is characterized in that the generation of electricity by new energy power constraint is shown below:
In formula: pw(t): the generation of electricity by new energy power of t moment；The theoretical maximum generated output of t moment new energy；T: excellent
Change period sum.
6. method according to claim 2, which is characterized in that the new energy is rationed the power supply constraint, is shown below:
In formula: W (t) is 0-1 variable, indicates that t moment new energy abandons electricity condition, W (t)=1 indicates that new energy is abandoned in t moment
Electricity, W (t)=0 indicate that new energy does not occur to abandon electricity in t moment；M: constant；pw(t): the generation of electricity by new energy power of t moment；The theoretical maximum generated output of t moment new energy；T: optimization period sum.
7. method according to claim 2, which is characterized in that the pump-up power station generated output constraint is shown below:
In formula: xs(t) it is 0-1 variable, indicates the generating state of t moment pump-up power station, xs(t)=1 indicate pump-up power station in t
It carves and is in generating state, xs(t)=0 indicate that pump-up power station is not in generating state in t moment；p s: the minimum power generation of pump-up power station
Power；The maximum power generation of pump-up power station；W (t) is 0-1 variable, indicates that t moment new energy abandons electricity condition；T: when optimization
Section sum.
8. method according to claim 2, which is characterized in that the constraint condition, further includes:
Pump-up power station draw water power constraint, pump-up power station storage capacity capacity-constrained, thermal power unit operation constraint and system interconnection function
Rate transmission constraint.
9. the method as described in claim 1, which is characterized in that the operation of power networks parameter, comprising:
New energy within the optimization period maximum power generation and the whole network load time series data and pump-up power station, fired power generating unit and
Interconnecting ties supplemental characteristic.
10. the method as described in claim 1, which is characterized in that the new energy power station, comprising: Wind turbines and photovoltaic electric
It stands.
11. a kind of medium-term and long-term timing containing pump-up power station produces simulation system characterized by comprising
Module is obtained, for chronologically obtaining the operation of power networks parameter in each optimization period；
Determining module, the timing for constructing based on the operation of power networks parameter and in advance produce dry run Optimized model, really
Power generation situation of the fixed each power station in each optimization period；
Schedule module, for, in the power generation situation of each optimization period, determining each power station fortune long-term in future based on each power station
Line mode simultaneously formulates years months electricity plan；
The power station includes: pump-up power station, new energy power station and fired power generating unit；Timing production dry run Optimized model with
Maximally utilizing new energy is that the extraction water electric energy loss of target combination pumped storage motor is constructed.
12. system as claimed in claim 11, which is characterized in that the system also includes:
Module is constructed, for constructing timing production dry run Optimized model；
The building module, comprising:
Construction unit, for maximum all to optimize generation of electricity by new energy amount and the difference of pump-up power station extraction water electric energy loss in the period
Objective function is constructed for target, is also used to construct constraint condition for the objective function；
The constraint condition includes: that system power Constraints of Equilibrium, generation of electricity by new energy power constraint, new energy are rationed the power supply constraint and pumped storage
The constraint of power station generated output；
Wherein, the pump-up power station generated output, which is constrained to, abandons when electricity condition and new energy abandon electricity pump-up power station not based on new energy
The constraint of power generation of discharging water is constructed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113890071A (en) * | 2021-10-26 | 2022-01-04 | 国网经济技术研究院有限公司 | Electrochemical energy storage capacity collaborative optimization configuration method considering pumped storage power station |
| CN114268125A (en) * | 2021-11-25 | 2022-04-01 | 国网山东省电力公司青岛供电公司 | Power grid operation simulation data maintenance, result and simulation system and optimization method |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113890071A (en) * | 2021-10-26 | 2022-01-04 | 国网经济技术研究院有限公司 | Electrochemical energy storage capacity collaborative optimization configuration method considering pumped storage power station |
| CN113890071B (en) * | 2021-10-26 | 2024-02-27 | 国网经济技术研究院有限公司 | Electrochemical energy storage capacity collaborative optimization configuration method considering pumping and storage power station |
| CN114268125A (en) * | 2021-11-25 | 2022-04-01 | 国网山东省电力公司青岛供电公司 | Power grid operation simulation data maintenance, result and simulation system and optimization method |
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