CN110445190A - A kind of photo-thermal power station heat storage capacity configuration method and system - Google Patents
A kind of photo-thermal power station heat storage capacity configuration method and system Download PDFInfo
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Abstract
The invention discloses a kind of photo-thermal power station heat storage capacity configuration method and systems.This method comprises: obtaining the operation constraint condition of photo-thermal power station system；According to the operation constraint condition, the operation expense of the environmental benefit of the grid-connected consumption of fired power generating unit cost of electricity-generating, photo-thermal power generation, spare capacity cost and photo-thermal power generation is determined；According to the operation expense of the fired power generating unit cost of electricity-generating, the environmental benefit of the grid-connected consumption of the photo-thermal power generation, the spare capacity cost and the photo-thermal power generation, photo-thermal power station system call cost when optimal heat storage capacity is determined；Obtain the scheduling cost of current photo-thermal power station system；The scheduling cost of photo-thermal power station system call cost and the current photo-thermal power station system when according to the optimal heat storage capacity, configures heat storage capacity.The present invention, to determine that photo-thermal power station heat storage capacity configures, has many advantages, such as scientific and reasonable, effect is best under the premise of guaranteeing system call performance driving economy.
Description
Technical field
The present invention relates to capacity configuration fields, more particularly to a kind of photo-thermal power station heat storage capacity configuration method and system.
Background technique
An important factor for energy crisis is increasingly sharpened with environmental pollution, has become restriction development, solar energy is abundant with it
Reserves gradually cause the concern of people.Photo-thermal power generation utilizes the emerging power generation shape of solar energy after becoming both photovoltaic power generations on a large scale
Formula, installed capacity are continuously increased with grid-connected scale.It is affixed one's name to according to world energy sources, it is expected that whole world photo-thermal power generation installed capacity in 2025
Be up to 22GW, the year two thousand fifty whole world photo-thermal power generation amount will account for the 11.3% of global total power generation, while according to National Development and Reform Committee " in
2050 high proportion Renewable Energy Development scene of state and path research ", to the year two thousand fifty, wind-powered electricity generation, photovoltaic power generation, photo-thermal power generation etc. can
Renewable sources of energy power supply consumes the non-renewable energy for supplying 60% or more.Therefore, photo-thermal power generation will enter the fast-developing new period.
Photo-thermal power station contains heat-storing device, can store in the load valley phase to heat, in load boom period heat release
Power generation, realizes the transfer of generated energy, and therefore, photo-thermal power generation has good controllability and schedulability.Heat-storing device capacity
Size determines the number of photo-thermal power station shifting savings, while influencing the operation characteristic of photo-thermal power station.With the increasing of heat storage capacity
Add and can be effectively reduced the grid-connected scheduling cost of photo-thermal power generation, but will cause the increase of heat-storing device deployment cost, probes into heat accumulation
Device deployment cost and scheduling economy equalization point, determine the optimal heat storage capacity of photo-thermal power station, become photo-thermal power station planning,
It must be solved the problems, such as before operation.
Summary of the invention
The object of the present invention is to provide a kind of photo-thermal power station heat storage capacity configuration method and systems, to quick, reasonable
Photo-thermal power station heat storage capacity is configured.
To achieve the above object, the present invention provides following schemes:
A kind of photo-thermal power station heat storage capacity configuration method, which comprises
Obtain the operation constraint condition of photo-thermal power station system；The constraint condition includes fired power generating unit cost of electricity-generating constraint item
The operation of the environmental benefit constraint condition, spare capacity cost constraint and photo-thermal power generation of the grid-connected consumption of part, photo-thermal power generation
Maintenance cost constraint condition；
According to the operation constraint condition, determine the grid-connected consumption of fired power generating unit cost of electricity-generating, photo-thermal power generation environmental benefit,
The operation expense of spare capacity cost and photo-thermal power generation；
According to the fired power generating unit cost of electricity-generating, the environmental benefit of the grid-connected consumption of the photo-thermal power generation, the spare capacity
The operation expense of cost and the photo-thermal power generation determines photo-thermal power station system call cost when optimal heat storage capacity；
Obtain the scheduling cost of current photo-thermal power station system；
Photo-thermal power station system call cost and the current photo-thermal power station system when according to the optimal heat storage capacity
Scheduling cost, heat storage capacity is configured.
Optionally, it according to the operation constraint condition, determines fired power generating unit cost of electricity-generating, specifically includes:
Obtain fired power generating unit cost of electricity-generating constraint condition；
According to the fired power generating unit cost of electricity-generating constraint condition, the generated output and fired power generating unit of fired power generating unit are determined
Operating status；
According to the generated output of the fired power generating unit and the operating status of the fired power generating unit, fired power generating unit power generation is calculated
Cost.
Optionally, it according to the operation constraint condition, determines the environmental benefit of the grid-connected consumption of photo-thermal power generation, specifically includes:
Obtain the environmental benefit constraint condition of the grid-connected consumption of photo-thermal power generation；
According to the environmental benefit constraint condition of the grid-connected consumption of the photo-thermal power generation, the output power of photo-thermal power station is determined；
Environmental benefit coefficient after acquisition photo-thermal power generation is grid-connected；
According to the output power of the photo-thermal power station and the environmental benefit coefficient, the grid-connected consumption of photo-thermal power generation is calculated
Environmental benefit.
Optionally, it according to the operation constraint condition, determines spare capacity cost, specifically includes:
Obtain spare capacity cost constraint；
According to the spare capacity cost constraint, determine that the positive rotation spare capacity of generating set and negative rotation turn standby
Use capacity；
According to the positive rotation spare capacity and the spinning reserve capacity, spare capacity cost is calculated.
Optionally, it according to the operation constraint condition, determines the operation expense of photo-thermal power generation, specifically includes:
Obtain the operation expense constraint condition of photo-thermal power generation；
According to the operation expense constraint condition of the photo-thermal power generation, the generated output of heat-storing device heat supply is determined；
Obtain the generated output of heat collector heat supply；
According to the generated output of the heat-storing device heat supply and the generated output of the heat collector heat supply, photo-thermal is calculated
The operation expense of power generation.
Compared with prior art, the present invention has following technical effect that the present invention using the operation characteristic of photo-thermal power station as base
Plinth comprehensively considers the environmental benefit and operation expense, system rotation of the grid-connected consumption of fired power generating unit cost of electricity-generating, photo-thermal power generation
Stand-by cost etc. dispatches economic factors, probes into heat-storing device deployment cost and dispatches the equalization point of economy, is guaranteeing system
Under the premise of management and running economy, to determine that photo-thermal power station heat storage capacity configures, have scientific and reasonable, it is excellent that effect is best etc.
Point.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the flow chart of photo-thermal power station of embodiment of the present invention heat storage capacity configuration method；
Fig. 2 obtains the thermal energy schematic diagram of photo-thermal power station heat collector absorption by SAM simulation software for the embodiment of the present invention；
Fig. 3 is the energy transfer process schematic diagram of photo-thermal power station of the embodiment of the present invention；
Fig. 4 is that photo-thermal power station of embodiment of the present invention heat storage capacity configures schematic illustration；
Fig. 5 is that optimal heat storage capacity and optimal heat storage capacity in 1 year are obtained after the embodiment of the present invention is solved by CPLEX
Under scheduling cost schematic diagram；
Fig. 6 is variation schematic diagram of the overall cost of the embodiment of the present invention with heat storage capacity；
Fig. 7 is the structural block diagram that photo-thermal power station of embodiment of the present invention heat storage capacity configures system.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of photo-thermal power station heat storage capacity configuration method and systems, to quick, reasonable
Photo-thermal power station heat storage capacity is configured.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, a kind of photo-thermal power station heat storage capacity configuration method, which comprises
Step 101: obtaining the operation constraint condition of photo-thermal power station system；The constraint condition include fired power generating unit power generation at
Environmental benefit constraint condition, spare capacity cost constraint and the photo-thermal hair of the grid-connected consumption of this constraint condition, photo-thermal power generation
The operation expense constraint condition of electricity.
Step 102: according to the operation constraint condition, determining the grid-connected consumption of fired power generating unit cost of electricity-generating, photo-thermal power generation
The operation expense of environmental benefit, spare capacity cost and photo-thermal power generation.
According to the operation constraint condition, determines fired power generating unit cost of electricity-generating, specifically includes:
Obtain fired power generating unit cost of electricity-generating constraint condition；
According to the fired power generating unit cost of electricity-generating constraint condition, the generated output and fired power generating unit of fired power generating unit are determined
Operating status；
According to the generated output of the fired power generating unit and the operating status of the fired power generating unit, fired power generating unit power generation is calculated
Cost.
According to the operation constraint condition, determines the environmental benefit of the grid-connected consumption of photo-thermal power generation, specifically includes:
Obtain the environmental benefit constraint condition of the grid-connected consumption of photo-thermal power generation；
According to the environmental benefit constraint condition of the grid-connected consumption of the photo-thermal power generation, the output power of photo-thermal power station is determined；
Environmental benefit coefficient after acquisition photo-thermal power generation is grid-connected；
According to the output power of the photo-thermal power station and the environmental benefit coefficient, the grid-connected consumption of photo-thermal power generation is calculated
Environmental benefit.
According to the operation constraint condition, determines spare capacity cost, specifically includes:
Obtain spare capacity cost constraint；
According to the spare capacity cost constraint, determine that the positive rotation spare capacity of generating set and negative rotation turn standby
Use capacity；
According to the positive rotation spare capacity and the spinning reserve capacity, spare capacity cost is calculated.
According to the operation constraint condition, determines the operation expense of photo-thermal power generation, specifically includes:
Obtain the operation expense constraint condition of photo-thermal power generation；
According to the operation expense constraint condition of the photo-thermal power generation, the generated output of heat-storing device heat supply is determined；
Obtain the generated output of heat collector heat supply；
According to the generated output of the heat-storing device heat supply and the generated output of the heat collector heat supply, photo-thermal is calculated
The operation expense of power generation.
Step 103: according to the fired power generating unit cost of electricity-generating, environmental benefit of the grid-connected consumption of the photo-thermal power generation, described
The operation expense of spare capacity cost and the photo-thermal power generation determines photo-thermal power station system tune when optimal heat storage capacity
Spend cost.
Step 104: obtaining the scheduling cost of current photo-thermal power station system.
Step 105: photo-thermal power station system call cost and the current photo-thermal when according to the optimal heat storage capacity
The scheduling cost of electric power station system, configures heat storage capacity.
The working principle of this method is as follows:
1) to the analysis of photo-thermal power station operation characteristic
Photo-thermal power station is mainly made of light field, heat reservoir and thermodynamic cycle three parts, passes through heat transfer stream between each section
Body carries out energy transfer process, realizes optical and thermal-electricity conversion process；Photo-thermal power station absorbs heat by the heat collector in light field
Can, heat-storing device is transferred heat to by heating power fluid and is stored, or transfers heat to circulation system progress
Power generation；
2) scheduling economy model and operation constrain
Scheduling model is established, is solved under the premise of meeting operation constraint, heat storage capacity when scheduling cost is minimum；With heat accumulation
Trend constant after first reducing is presented in the increase of capacity, the scheduling cost of system, is most to dispatch the inflection point of cost variation tendency
Advantage, i.e., minimum heat storage capacity when scheduling cost is minimum；
(a) foundation of economy model is dispatched
Comprehensively consider the environmental benefit of the grid-connected consumption of fired power generating unit cost of electricity-generating, photo-thermal power generation and operation expense, is
The scheduling economic factors such as spinning reserve cost of uniting, obtain the scheduling model of the electric system containing photo-thermal power generation, following (1) formula:
E=min [E1-E2+E3+E4] (1)
Wherein: E is the scheduling cost that photo-thermal power station is incorporated into the power networks；E1For fired power generating unit cost of electricity-generating；E2Simultaneously for photo-thermal power generation
Net the environmental benefit of consumption；E3For system reserve capacity cost；E4For the operation expense of photo-thermal power generation；
The cost of electricity-generating of fired power generating unit mainly includes fuel cost and start-up and shut-down costs, and calculation formula is (2) formula:
E1=e1(Pit)+e2(uit) (2)
Wherein: e1For the fuel cost of fired power generating unit；e2For the start-up and shut-down costs of fired power generating unit；PitIt is fired power generating unit i in t
The generated output at quarter；uitOperating status for fired power generating unit i in t moment, uit=1 indicates operation, uit=0 indicates to shut down；
e1Be calculated as (3) formula:
e2Be calculated as (4) formula:
Wherein: ai, bi, ciFor the fuel cost coefficient of unit i；T is total period；T is the moment；
Photo-thermal power generation belongs to emerging solar power generation, the operation characteristic with cleanliness without any pollution, and grid-connected consumption has one
Fixed environmental benefit, calculation formula such as (5) formula:
Wherein: PiGtFor photo-thermal power station i the t period output power；kGThe environmental benefit system for being photo-thermal power generation after grid-connected
Number；
Photo-thermal power station places one's entire reliance upon illumination, has certain randomness, will will cause spare capacity increase after grid-connected, this
When system reserve cost be calculated as (6) formula:
Wherein: UitFor unit i t moment positive rotation spare capacity；DitHold for unit i in the negative spinning reserve of t moment
Amount；αiFor the positive rotation stand-by cost coefficient of unit i；βiTurn stand-by cost coefficient for the negative rotation of unit i；
Some necessary maintenance measures are needed in photo-thermal power station operation, generate certain operation expense, calculation formula
For (7) formula:
Wherein: kisFor the cost coefficient of heat collector heat supply power generation；kiTsFor the cost coefficient of heat-storing device heat supply power generation；For the generated output of heat collector heat supply；For the generated output of heat-storing device heat supply；
The generated output of heat collector heat supplyCalculation formula is (8) formula:
The generated output of heat-storing device heat supplyCalculation formula is (9) formula:
(b) system operation constraint
In scheduling process, the sum of each moment fired power generating unit and power output of photo-thermal power station needs are equal with load power,
Power-balance constraint is (10) formula:
Wherein: PLtFor the load power of t period；
Fired power generating unit cost of electricity-generating E1Corresponding constraint mainly has fired power generating unit units limits (11), the constraint of climbing rate
(12), the units limits (13) when fired power generating unit starts and stops transport；
Fired power generating unit units limits are (11) formula:
Pimin≤Pit≤Pimax (11)
Fired power generating unit climbing rate is constrained to (12) formula:
-rdi≤Pit-Pi(t-1)≤rui (12)
Wherein: ruiIt climb ratio of slope for the maximum of fired power generating unit；rdiFor the maximum rate of climbing downwards of fired power generating unit；
Units limits when fired power generating unit starting and stoppage in transit are (13) formula:
System reserve capacity cost E3Corresponding positive and negative spinning reserve capacity is constrained to (14) formula:
Wherein: UiFor the positive rotation spare capacity of fired power generating unit i；DiFor the negative spinning reserve capacity of fired power generating unit i；Pimax
For the maximum output of fired power generating unit i；PiminFor the minimum load of fired power generating unit i；L is load prediction error rate；
The corresponding constraint condition of operation expense E4 of the environmental benefit E2 and photo-thermal power generation of the grid-connected consumption of photo-thermal power generation
Mainly there are photo-thermal power station units limits formula (15), photo-thermal power station climbing rate constraint formula (16), heat storage capacity constraint formula (17), heat accumulation
Charge and discharge thermal power constraint formula (18) of system, synchronization charge and discharge thermal confinement formula (19), heat reservoir whole story quantity of heat storage constrain formula
(20)；
Photo-thermal power station units limits are (15) formula:
PGmin≤PGt≤PGmax (15)
Wherein: PGmaxFor the maximum output of photo-thermal power station；PGminFor the minimum load of photo-thermal power station；
Photo-thermal power station climbing rate is constrained to (16) formula:
-rdG≤PGt-PG(t-1)≤ruG (16)
Wherein: ruGIt climb ratio of slope for the maximum of photo-thermal power generation；rdGFor the maximum rate of climbing downwards of photo-thermal power generation；
Heat storage capacity is constrained to (17) formula:
Wherein:For the upper limit of heat reservoir quantity of heat storage；For the lower limit of heat reservoir quantity of heat storage；
The charge and discharge thermal power of heat reservoir is constrained to (18) formula:
Wherein:For the heat accumulation power of heat reservoir；For the heat release power of heat reservoir；For heat reservoir
The lower limit of heat accumulation power；For the lower limit of heat reservoir heat release power；For the upper limit of heat reservoir heat accumulation power；
For the upper limit of heat reservoir heat release power；
Synchronization charge and discharge thermal confinement is (19) formula:
Heat accumulation power and heat release power product are that zero expression heat accumulation cannot carry out simultaneously with heat release；
Heat reservoir whole story quantity of heat storage is constrained to (20) formula:
Wherein:For the initial value of heat-storing device quantity of heat storage；For the end value of heat-storing device quantity of heat storage；
3) heat storage capacity configuration method
Photo-thermal power station contains heat-storing device, can store in the load valley phase to heat, in load boom period heat release
Power generation, realizes the transfer of generated energy.And the size of heat-storing device capacity determines the number of photo-thermal power station shifting savings, while shadow
The operation characteristic of photo-thermal power station is rung, and then influences the integrated dispatch operation of system.As the increase of heat storage capacity can effectively drop
The grid-connected scheduling cost of low photo-thermal power generation, but will cause the increase of heat-storing device deployment cost；
The deployment cost and scheduling cost for fully considering heat storage capacity, construct photo-thermal power station heat storage capacity and overall cost
Majorized function:
Min F=f1(S)+f2(S) (21)
Wherein: F is the overall cost of photo-thermal power station heat storage capacity configuration；f1For heat storage capacity deployment cost；f2For heat accumulation appearance
Amount dispatches the incrementss of cost when deviateing optimal heat storage capacity；S is heat storage capacity；
f1=cS (22)
Wherein: c is unit heat storage capacity deployment cost；
f2=Es-Emin (23)
Wherein: EminThe scheduling cost of system when for optimal heat storage capacity；EsSystem call when for heat storage capacity being s at
This.
Specific embodiment:
The present embodiment is solved by taking IEEE-30 node system as an example by CPLEX, determines the heat storage capacity of photo-thermal power station, with
This validity to verify the method for the invention.The thermal energy of photo-thermal power station heat collector absorption is obtained by SAM simulation software
As shown in Figure 2.
1. the analysis pair photo-thermal power station operation characteristic
The energy transfer process schematic diagram of photo-thermal power station is as shown in figure 3, as seen from Figure 3, in photo-thermal power station operational process
Each link can generate certain energy loss, installed capacity, operational mode of size and photo-thermal power station of loss etc. are a variety of
Factor is related.The thermal energy that heat collector absorbs is used to power generation of doing work when there is workload demand, and heat accumulation dress is supplied when load is lower
It sets, carries out thermal energy storage, generate electricity in load boom period heat release.
2. dispatching the foundation of economy model
It is 112 yuan/MW, the environmental benefit coefficient k after photo-thermal power generation is grid-connected that stand-by cost coefficient is chosen in solution procedureG
For 230 yuan/MW, r is takendi=rui, rdG=ruG.With the increase of heat storage capacity, the scheduling cost of system presents constant after first reducing
Trend, to dispatch the inflection point of cost variation tendency as optimum point, i.e., minimum heat storage capacity when scheduling cost is minimum is reaching
Before optimal heat storage capacity, with the increase of photo-thermal power station heat storage capacity, the integrated operation cost of system is reduced.
3. heat storage capacity configuration method
Photo-thermal power station contains heat-storing device, can store in the load valley phase to heat, in load boom period heat release
Power generation, realizes the transfer of generated energy.And the size of heat-storing device capacity determines the number of photo-thermal power station shifting savings, while shadow
The operation characteristic of photo-thermal power station is rung, and then influences the management and running cost of system.As the increase of heat storage capacity can effectively drop
The grid-connected scheduling cost of low photo-thermal power generation, but will cause the increase of heat-storing device deployment cost.
On the basis of counting and dispatching economy, under the premise of guaranteeing system call performance driving economy, to determine photo-thermal
Power station heat storage capacity configuration, photo-thermal power station heat storage capacity when solution scheduling cost is minimum, is defined as optimal heat storage capacity, breaks
Timing obtains the arrangement figure of optimal heat storage capacity from big to small, while the grid-connected scheduling cost of photo-thermal power station at this time is calculated,
It is as shown in Figure 4 that photo-thermal power station heat storage capacity configures schematic illustration.C in Fig. 4setFor the heat storage capacity of photo-thermal power station configuration, Fset
For corresponding scheduling cost under configuration heat storage capacity.From fig. 4, it can be seen that [0, T in 1 yearset] heat storage capacity of period configuration is lower than
Optimal heat storage capacity will will cause be scheduled to this increase at this time, higher than the scheduling cost under optimal heat storage capacity, be defined as heat accumulation
Capacity dispatches the incrementss of cost when deviateing optimal heat storage capacity；[T in 1 yearset, 365] and the heat storage capacity of period configuration is higher than
Optimal heat storage capacity, scheduling cost at this time are the scheduling cost under optimal heat storage capacity.
[0, Tset] period CsetLower than optimal heat storage capacity, heat storage capacity deployment cost at this time is lower, but dispatches
Increased costs, in [Tset, 365] and period CsetHigher than optimal heat storage capacity, heat storage capacity deployment cost is higher at this time, dispatches cost
It is lower.Therefore, it probes into heat-storing device deployment cost and dispatches the equalization point of economy, determine that photo-thermal power station heat storage capacity configures,
The optimal grid-connected economy of photo-thermal power station can be obtained.
The scheduling cost schematic diagram in 1 year under optimal heat storage capacity and optimal heat storage capacity is obtained after solving by CPLEX
As shown in Figure 5.As seen from Figure 5, with the reduction of optimal heat storage capacity in 1 year, the scheduling cost under optimal heat storage capacity increases
Add, therefore, for photo-thermal power station, when the heat storage capacity of configuration is lower than optimal heat storage capacity, it will increase the tune of system
Spend cost.
The heat storage capacity for changing photo-thermal power station, it is as shown in Figure 6 with the variation schematic diagram of heat storage capacity to obtain overall cost.By
Fig. 6 as it can be seen that with heat storage capacity increase, the overall cost of system is presented increased trend after first reducing, holds in optimal heat accumulation
Reach overall cost minimum value when amount, heat storage capacity is 800MWh at this time, and overall cost is 21,200,000 yuan.It is being optimal heat accumulation
Before capacity, as the increase of heat storage capacity can increase the schedulability of photo-thermal power station, scheduling cost, therefore overall cost are reduced
It reduces, after being optimal heat storage capacity, with the increase of heat storage capacity, the deployment cost of heat-storing device increases, and integrates at this time
Cost will increase.
The specific embodiment provided according to the present invention, the invention discloses following technical effects: the present invention is with photo-thermal power station
Operation characteristic based on, comprehensively consider the grid-connected consumption of fired power generating unit cost of electricity-generating, photo-thermal power generation environmental benefit and operation dimension
The scheduling economic factors such as cost, system spinning reserve cost are protected, heat-storing device deployment cost is probed into and dispatch the flat of economy
Weigh point, under the premise of guaranteeing system call performance driving economy, to determine that photo-thermal power station heat storage capacity configures, there is science to close
The advantages that reason, effect is best.
As shown in fig. 7, the present invention also provides a kind of photo-thermal power station heat storage capacities to configure system, the system comprises:
It runs constraint condition and obtains module 701, for obtaining the operation constraint condition of photo-thermal power station system；The constraint item
Part include fired power generating unit cost of electricity-generating constraint condition, the environmental benefit constraint condition of the grid-connected consumption of photo-thermal power generation, spare capacity at
The operation expense constraint condition of this constraint condition and photo-thermal power generation.
Cost determination module 702, for determining fired power generating unit cost of electricity-generating, photo-thermal hair according to the operation constraint condition
The operation expense of the environmental benefit of the grid-connected consumption of electricity, spare capacity cost and photo-thermal power generation；Cost determination module includes
Fired power generating unit cost of electricity-generating determination unit, the environmental benefit determination unit of the grid-connected consumption of photo-thermal power generation, spare capacity cost determine
The operation expense determination unit of unit and photo-thermal power generation.
Fired power generating unit cost of electricity-generating determination unit specifically includes:
Fired power generating unit cost of electricity-generating constraint condition obtains subelement, for obtaining fired power generating unit cost of electricity-generating constraint condition；
Generated output and operating status determine subelement, are used for according to the fired power generating unit cost of electricity-generating constraint condition, really
Determine the generated output of fired power generating unit and the operating status of fired power generating unit；
Fired power generating unit cost of electricity-generating computation subunit, for the generated output and the thermoelectricity according to the fired power generating unit
The operating status of unit calculates fired power generating unit cost of electricity-generating.
The environmental benefit determination unit of the grid-connected consumption of photo-thermal power generation specifically includes:
Environmental benefit constraint condition obtains subelement, and the environmental benefit for obtaining the grid-connected consumption of photo-thermal power generation constrains item
Part；
The output power of photo-thermal power station determines subelement, for according to the environmental benefit of the grid-connected consumption of the photo-thermal power generation about
Beam condition determines the output power of photo-thermal power station；
Environmental benefit coefficient obtain subelement, for obtain photo-thermal power generation it is grid-connected after environmental benefit coefficient；
Environmental benefit computation subunit, for according to the photo-thermal power station output power and the environmental benefit system
Number calculates the environmental benefit of the grid-connected consumption of photo-thermal power generation.
Spare capacity cost determination unit specifically includes:
Spare capacity cost constraint obtains subelement, for obtaining spare capacity cost constraint；
Positive rotation spare capacity and negative spinning reserve capacity subelement, for according to the spare capacity cost constraint item
Part, determine generating set positive rotation spare capacity and negative spinning reserve capacity；
Spare capacity cost calculation subelement, for being held according to the positive rotation spare capacity and the spinning reserve
Amount calculates spare capacity cost.
Operation expense determination unit specifically includes:
Operation expense constraint condition obtains subelement, and the operation expense for obtaining photo-thermal power generation constrains item
Part；
The generated output of heat-storing device heat supply determines subelement, for according to the operation expense of the photo-thermal power generation about
Beam condition determines the generated output of heat-storing device heat supply；
The generated output of heat collector heat supply obtains subelement, for obtaining the generated output of heat collector heat supply；
The operation expense computation subunit of photo-thermal power generation, for according to the generated output of the heat-storing device heat supply with
And the generated output of the heat collector heat supply, calculate the operation expense of photo-thermal power generation.
Optimal scheduling cost determination module 703, for grid-connected according to the fired power generating unit cost of electricity-generating, the photo-thermal power generation
The operation expense of the environmental benefit of consumption, the spare capacity cost and the photo-thermal power generation determines that optimal heat accumulation holds
Photo-thermal power station system call cost when amount.
It dispatches cost and obtains module 704, for obtaining the scheduling cost of current photo-thermal power station system.
Configuration module 705, photo-thermal power station system call cost when for according to the optimal heat storage capacity and described
The scheduling cost of current photo-thermal power station system, configures heat storage capacity.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For system disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of photo-thermal power station heat storage capacity configuration method, which is characterized in that the described method includes:
Obtain the operation constraint condition of photo-thermal power station system；The constraint condition include fired power generating unit cost of electricity-generating constraint condition,
The operation and maintenance of the environmental benefit constraint condition, spare capacity cost constraint and photo-thermal power generation of the grid-connected consumption of photo-thermal power generation
Cost constraint；
According to the operation constraint condition, the environmental benefit, spare of the grid-connected consumption of fired power generating unit cost of electricity-generating, photo-thermal power generation is determined
The operation expense of Capacity Cost and photo-thermal power generation；
According to the fired power generating unit cost of electricity-generating, the environmental benefit of the grid-connected consumption of the photo-thermal power generation, the spare capacity cost
And the operation expense of the photo-thermal power generation, determine photo-thermal power station system call cost when optimal heat storage capacity；
Obtain the scheduling cost of current photo-thermal power station system；
The tune of photo-thermal power station system call cost and the current photo-thermal power station system when according to the optimal heat storage capacity
Cost is spent, heat storage capacity is configured.
2. photo-thermal power station heat storage capacity configuration method according to claim 1, which is characterized in that constrained according to the operation
Condition determines fired power generating unit cost of electricity-generating, specifically includes:
Obtain fired power generating unit cost of electricity-generating constraint condition；
According to the fired power generating unit cost of electricity-generating constraint condition, the generated output of fired power generating unit and the operation of fired power generating unit are determined
State；
According to the generated output of the fired power generating unit and the operating status of the fired power generating unit, calculate fired power generating unit power generation at
This.
3. photo-thermal power station heat storage capacity configuration method according to claim 1, which is characterized in that constrained according to the operation
Condition determines the environmental benefit of the grid-connected consumption of photo-thermal power generation, specifically includes:
Obtain the environmental benefit constraint condition of the grid-connected consumption of photo-thermal power generation；
According to the environmental benefit constraint condition of the grid-connected consumption of the photo-thermal power generation, the output power of photo-thermal power station is determined；
Environmental benefit coefficient after acquisition photo-thermal power generation is grid-connected；
According to the output power of the photo-thermal power station and the environmental benefit coefficient, the environment of the grid-connected consumption of photo-thermal power generation is calculated
Benefit.
4. photo-thermal power station heat storage capacity configuration method according to claim 1, which is characterized in that constrained according to the operation
Condition determines spare capacity cost, specifically includes:
Obtain spare capacity cost constraint；
According to the spare capacity cost constraint, determine that the positive rotation spare capacity of generating set and negative spinning reserve are held
Amount；
According to the positive rotation spare capacity and the spinning reserve capacity, spare capacity cost is calculated.
5. photo-thermal power station heat storage capacity configuration method according to claim 1, which is characterized in that constrained according to the operation
Condition determines the operation expense of photo-thermal power generation, specifically includes:
Obtain the operation expense constraint condition of photo-thermal power generation；
According to the operation expense constraint condition of the photo-thermal power generation, the generated output of heat-storing device heat supply is determined；
Obtain the generated output of heat collector heat supply；
According to the generated output of the heat-storing device heat supply and the generated output of the heat collector heat supply, photo-thermal power generation is calculated
Operation expense.
6. a kind of photo-thermal power station heat storage capacity configures system, which is characterized in that the system comprises:
It runs constraint condition and obtains module, for obtaining the operation constraint condition of photo-thermal power station system；The constraint condition includes
Fired power generating unit cost of electricity-generating constraint condition, the environmental benefit constraint condition of the grid-connected consumption of photo-thermal power generation, spare capacity cost constraint
The operation expense constraint condition of condition and photo-thermal power generation；
Cost determination module, for determining that fired power generating unit cost of electricity-generating, photo-thermal power generation are grid-connected and disappearing according to the operation constraint condition
The operation expense of environmental benefit, spare capacity cost and the photo-thermal power generation received；Cost determination module includes fired power generating unit
The environmental benefit determination unit of the grid-connected consumption of cost of electricity-generating determination unit, photo-thermal power generation, spare capacity cost determination unit and
The operation expense determination unit of photo-thermal power generation；
Optimal scheduling cost determination module, for according to the fired power generating unit cost of electricity-generating, the photo-thermal power generation grid-connected consumption
The operation expense of environmental benefit, the spare capacity cost and the photo-thermal power generation, when determining optimal heat storage capacity
Photo-thermal power station system call cost；
It dispatches cost and obtains module, for obtaining the scheduling cost of current photo-thermal power station system；
Configuration module, photo-thermal power station system call cost and the current photo-thermal when for according to the optimal heat storage capacity
The scheduling cost of electric power station system, configures heat storage capacity.
7. photo-thermal power station heat storage capacity according to claim 6 configures system, which is characterized in that fired power generating unit cost of electricity-generating
Determination unit specifically includes:
Fired power generating unit cost of electricity-generating constraint condition obtains subelement, for obtaining fired power generating unit cost of electricity-generating constraint condition；
Generated output and operating status determine subelement, for determining fire according to the fired power generating unit cost of electricity-generating constraint condition
The generated output of motor group and the operating status of fired power generating unit；
Fired power generating unit cost of electricity-generating computation subunit, for according to the fired power generating unit generated output and the fired power generating unit
Operating status, calculate fired power generating unit cost of electricity-generating.
8. photo-thermal power station heat storage capacity according to claim 6 configures system, which is characterized in that the grid-connected consumption of photo-thermal power generation
Environmental benefit determination unit specifically include:
Environmental benefit constraint condition obtains subelement, for obtaining the environmental benefit constraint condition of the grid-connected consumption of photo-thermal power generation；
The output power of photo-thermal power station determines subelement, for constraining item according to the environmental benefit of the grid-connected consumption of the photo-thermal power generation
Part determines the output power of photo-thermal power station；
Environmental benefit coefficient obtain subelement, for obtain photo-thermal power generation it is grid-connected after environmental benefit coefficient；
Environmental benefit computation subunit, for the output power and the environmental benefit coefficient according to the photo-thermal power station, meter
Calculate the environmental benefit of the grid-connected consumption of photo-thermal power generation.
9. photo-thermal power station heat storage capacity according to claim 6 configures system, which is characterized in that spare capacity cost determines
Unit specifically includes:
Spare capacity cost constraint obtains subelement, for obtaining spare capacity cost constraint；
Positive rotation spare capacity and negative spinning reserve capacity subelement are used for according to the spare capacity cost constraint, really
Determine generating set positive rotation spare capacity and negative spinning reserve capacity；
Spare capacity cost calculation subelement, for according to the positive rotation spare capacity and the spinning reserve capacity, meter
Calculate spare capacity cost.
10. photo-thermal power station heat storage capacity according to claim 6 configures system, which is characterized in that operation expense is true
Order member specifically includes:
Operation expense constraint condition obtains subelement, for obtaining the operation expense constraint condition of photo-thermal power generation；
The generated output of heat-storing device heat supply determines subelement, for constraining item according to the operation expense of the photo-thermal power generation
Part determines the generated output of heat-storing device heat supply；
The generated output of heat collector heat supply obtains subelement, for obtaining the generated output of heat collector heat supply；
The operation expense computation subunit of photo-thermal power generation, for according to the heat-storing device heat supply generated output and institute
The generated output for stating heat collector heat supply calculates the operation expense of photo-thermal power generation.
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Application publication date: 20191112 |