CN106786802A - A kind of photovoltaic plant based on CCHP is exerted oneself quick regulator control system - Google Patents
A kind of photovoltaic plant based on CCHP is exerted oneself quick regulator control system Download PDFInfo
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- CN106786802A CN106786802A CN201710080308.5A CN201710080308A CN106786802A CN 106786802 A CN106786802 A CN 106786802A CN 201710080308 A CN201710080308 A CN 201710080308A CN 106786802 A CN106786802 A CN 106786802A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 230000033228 biological regulation Effects 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 230000037431 insertion Effects 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 38
- 238000009434 installation Methods 0.000 description 7
- 239000013074 reference sample Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005619 thermoelectricity Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
-
- H02J3/383—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/42—Cooling means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Photovoltaic Devices (AREA)
Abstract
Exerted oneself quick regulator control system the invention discloses a kind of photovoltaic plant based on CCHP, in photovoltaic plant, warm water tank and cold water reservoir are set, refrigerating plant is installed in cold water reservoir, installing and warm water tank and the hot channel of cold water reservoir insertion on photovoltaic component back plate, the water outlet of cold water reservoir accesses the water inlet of hot channel, and the water outlet of hot channel accesses warm water tank.This regulator control system has stabilized the natural supply and demand difference that photovoltaic plant is exerted oneself with workload demand, avoid the network loss that when supply exceed demand electric power sends outside or abandon caused by light at a distance and increase, the wasting of resources, and in supply-less-than-demand there is provided a kind of means of quick regulation generating capacity, the waste of light resource is avoided to a certain extent, the part hot water demand of power station and peripheral facility is met simultaneously, improves comprehensive utilization of energy effect.
Description
Technical field
Exerted oneself quick regulator control system the present invention relates to a kind of photovoltaic plant produced based on cold-hot-Electricity Federation, belong to new energy hair
Electric control field.
Background technology
In recent years, solar energy development utilizes scale rapid expansion, and technological progress and industrial upgrading are accelerated, and cost significantly drops
It is low, it has also become the key areas of global energy transition.By the end of the year 2015, global solar generator installation has reached 2.3 hundred million
Kilowatt, installation is increased newly then more than 53,000,000 kilowatts, account for the 20% of the newly-increased generator installation in the whole world.2006 to 2015 years photovoltaic generations
Average annual growth rate more than 40%, as the most fast energy kind of global growth rate.The accumulative installation of China's photovoltaic generation from
860,000 kilowatts in 2010 rise to 43,180,000 kilowatts in 2015, newly-increased 15,130,000 kilowatts of installation in 2015, add up installation and
It is the first that year newly-increased installation occupies the whole world.Photovoltaic generation application gradually forms easter-mid-wester region joint development, centralized and distributed
The general layout for developing simultaneously.Photovoltaic generation is constantly brought forth new ideas with the various Industrial Convergence development models such as agricultural, aquaculture, ecological management, has been entered
Enter the new stage of diversification, large-scale development.
" 13 " will be the critical period of solar energy industry development, and basic task is industrial upgrading, reduces cost, expansion
Using realization is independent of market-oriented self sustainable development of public subsidies, as realizing the year two thousand twenty and the year two thousand thirty non-fossil energy
The important force that primary energy consumes the target of proportion 15% and 20% is accounted for respectively.
But in the operation and control process of photovoltaic plant, encounter some difficult and challenges.Photovoltaic plant has been exerted oneself
All dependent on irradiation situation.Irradiance profile is apparent " unimodal " form, i.e., irradiation gradually rises since morning,
Maximum is reached to noon, is then gradually decreased, until the sun sets.Therefore the power curve of photovoltaic plant is also in substantially
" unimodal " form.And load curve then can have abundant " peak-to-valley-flat " change according to local load configuration, generally in the morning 7
O'clock there is peak of power consumption to and 6 points to 8 points of evening at 9 points, and period at noon general need for electricity is less, this results in photovoltaic electric
The power curve and load curve stood have larger difference：Morning for exerting oneself less in photovoltaic plant and dusk workload demand compared with
Height, and it is less in period at the noon workload demand that photovoltaic plant is exerted oneself most.Traditional control device is supplied for electric power in region
More than asking the period to need to send electric power more than needed outside using long distance power transmission or directly carry out abandoning light treatment, network loss is caused to increase
Plus, the wasting of resources；And for the period of supply-less-than-demand, then lacking effective method quickly improves exerting oneself for photovoltaic plant, to contract
Small supply of electric power breach, can only by thermoelectricity, water power etc. routine controllable electric power carry out load peak regulation, if these power supplys with
Load geographical position is apart from each other, then need to carry out remote electrical energy transportation, equally causes network loss to increase.Therefore, traditional control
System strategy is unable to reach the purpose of comprehensive optimal control solar energy resources, and is unsatisfactory for the newest distribution for providing of National Energy Board
The policy that the energy is dissolved nearby.
The content of the invention
In order to solve the above problems, exerted oneself fast velocity modulation the invention provides a kind of photovoltaic plant produced based on cold-hot-Electricity Federation
Control system, is exerted oneself using the temperature characterisitic quick regulation photovoltaic plant of photovoltaic cell, can be stabilized photovoltaic plant and is exerted oneself and bear
The supply and demand difference of lotus demand, it is to avoid the network loss that electric power is sent outside or abandoned caused by light at a distance when supply exceed demand increases, resource
Waste, improve comprehensive utilization of energy effect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of photovoltaic plant produced based on cold-hot-Electricity Federation is exerted oneself quick regulator control system, it is characterised in that：In photovoltaic plant
Set and refrigerating plant is installed in warm water tank and cold water reservoir, cold water reservoir, installing is passed through with warm water tank and cold water reservoir on photovoltaic component back plate
Logical hot channel, the water outlet of cold water reservoir accesses the water inlet of hot channel, and the water outlet of hot channel accesses warm water tank.
When in power supply area electric energy supply exceed demand when, using unnecessary electric energy by being installed in refrigerating plant pair in cold water reservoir
Water in cold water reservoir is freezed.
When electric energy supply-less-than-demand in power supply area, cold water reservoir inner cold water is injected on photovoltaic component back plate by pipeline
Hot channel, the water flowed out after hot channel circulation accesses warm water tank.
When there is spike type load to put into power supply area, cold water reservoir inner cold water is injected into photovoltaic component back plate by pipeline
On hot channel, hot channel circulation after flow out water access warm water tank.
The thermal load demands of hot water supply photovoltaic plant and peripheral facility in warm water tank, unnecessary hot water passes through pipeline certainly
Cold water reservoir is so flowed into after radiating to recycle.
Hydrodynamic system is also included, drives water to be circulated between cold water reservoir and warm water tank by hydrodynamic system.
When the timing of radiation parameter one, the expression formula that photovoltaic module EIAJ is varied with temperature is：
Wherein, PT、K、T0, T be respectively photovoltaic module EIAJ, normal temperature T under work temperature0Lower photovoltaic group
Part EIAJ, temperature coefficient, photovoltaic module standard operating temperature and photovoltaic module actual work temperature.
When in power supply area electric energy supply exceed demand when, the water in cold water reservoir is freezed using unnecessary electric energy, make P1
=PREF+L1；
Wherein P1、PREF、L1Photovoltaic generation active power output, refrigeration work consumption when respectively supply exceed demand in electric energy supply area
And workload demand.
When electric energy supply-less-than-demand in power supply area, the cold water flowed out using cold water reservoir passes through the hot channel pair on backboard
Backboard is cooled down, and makes L2=P2+ΔP2；
Wherein L2、P2、ΔP2Workload demand respectively in electric energy supply area during supply-less-than-demand, photovoltaic plant is uncolled
Cooling is exerted oneself and the increment of exerting oneself after photovoltaic plant cools.
When there is spike type load to put into power supply area, according to dispatch command, cool photovoltaic plant place in advance
Reason, makes
WhereinWorkload demand, peakload respectively before peakload input are needed
Ask, the photovoltaic plant nargin of exerting oneself exerting oneself and to be formed by cooling before peakload input.
Photovoltaic module standard operating temperature T0=25 DEG C.
When irradiation intensity is 1000W/m2When, reference sample temperature coefficient K=-0.41%/DEG C.
Increment of exerting oneself after photovoltaic plant cools is：
ΔP2=P2×K×ΔT
Wherein, Δ T is the variable quantity that the process of cooling occurs photovoltaic module temperature.
Photovoltaic panel work when temperature up to more than 100 DEG C, if being carried out to photovoltaic panel by backboard hot channel using cold water
Cool to 40 DEG C, reference sample temperature coefficient K=-0.41%/DEG C, then short time internal power lifting will be more than 20%.
The beneficial effect that the present invention is reached：
The present invention can utilize exerting oneself for the temperature characterisitic quick regulation photovoltaic plant of photovoltaic cell, stabilized photovoltaic plant and gone out
The natural supply and demand difference of power and workload demand, it is to avoid electric power is at a distance sent outside or abandons the network loss caused by light when supply exceed demand
Increase, the wasting of resources, and in supply-less-than-demand there is provided a kind of means of quick increase photovoltaic generation ability, while meeting electricity
Stand and peripheral facility part hot water demand, improve comprehensive utilization of energy effect.
Brief description of the drawings
Fig. 1 is that a kind of photovoltaic plant produced based on cold-hot-Electricity Federation is exerted oneself quick regulator control system structural representation.
Fig. 2 is not carry out the workload demand and output of power station curve comparison figure in the case of exerting oneself.
Fig. 3 is to carry out the workload demand after exerting oneself and output of power station curve comparison figure.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following instance is only used for clearly illustrating of the invention
Technical scheme, and can not be limited the scope of the invention with this.
As shown in figure 1, a kind of photovoltaic plant produced based on cold-hot-Electricity Federation exerts oneself quick regulator control system structure by cold water reservoir
1st, the refrigeration plant 11 installed in cold water reservoir 1, warm water tank 2, installing and warm water tank and cold water reservoir insertion on photovoltaic component back plate 3
Hot channel 4 and corresponding aqueduct and hydrodynamic system composition.The water outlet of cold water reservoir accesses the water inlet of hot channel
5, the delivery port 6 of hot channel accesses warm water tank.Water is driven to be circulated between cold water reservoir 1 and warm water tank 2 by hydrodynamic system.
When in power supply area electric energy supply exceed demand when, the water in cold water reservoir is freezed using unnecessary electric energy, meet
System power is balanced, even if P1=PREF+L1；
Wherein P1、PREF、L1Photovoltaic plant when respectively supply exceed demand in electric energy supply area is exerted oneself, refrigeration work consumption and
Workload demand；
When electric energy supply-less-than-demand in power supply area, cooling drop is carried out to photovoltaic panel by backboard hot channel using cold water
Temperature, quick raising system is exerted oneself output, even if L2=P2+ΔP2；
Wherein L2、P2、ΔP2Workload demand, photovoltaic plant respectively in power supply area during supply-less-than-demand are cooling
It is preceding to exert oneself and the increment of exerting oneself after photovoltaic plant cools；
When there is spike type load to put into power supply area, power station can in advance carry out cooling treatment according to dispatch command, carry
Generating capacity nargin high, even if
WhereinWorkload demand, peakload respectively before peakload input are needed
Ask, the photovoltaic plant nargin of exerting oneself exerting oneself and to be formed by cooling before peakload input；
Warm water tank 2 is flowed into after the cooling water used that cools is heated, hot water confession can be carried out to power station and peripheral facility 7
Should；Surplus hot water recycles by passing back into cold water reservoir 1 after heat dissipation of pipeline.
According to the test result of photovoltaic module producer, when the timing of radiation parameter one, component EIAJ variation with temperature
Mathematic(al) representation is,
Wherein, PT、K、T0, T be respectively component EIAJ, normal temperature T under work temperature0Lower component maximum goes out
Power, temperature coefficient, component standard work temperature0=25 DEG C and component actual work temperature.When irradiation intensity is 1000W/m2
When, reference sample temperature coefficient K=-0.41%/DEG C.
Make the reduction of photovoltaic module operating temperature by cooling, then the increment of exerting oneself after photovoltaic plant cools can table
It is shown as：
ΔP2=P2×K×ΔT
Wherein, Δ P2、P2, Δ T is respectively before the increment of exerting oneself after photovoltaic plant cools, photovoltaic plant cool
Exert oneself, the process of cooling makes the variable quantity of photovoltaic module temperature generation.Photovoltaic panel work when temperature up to more than 100 DEG C, if
Photovoltaic panel is cooled down to 40 DEG C, reference sample temperature coefficient K=- by backboard hot channel using cold water
0.41%/DEG C, then short time internal power lifting will be more than 20%.
As shown in Fig. 2 not carry out the workload demand in the case of exerting oneself and output of power station curve comparison figure.Morning 7
O'clock to 9 points and 6 points to 8 peak of power consumption period photovoltaic plants of evening exert oneself it is less, it is necessary to pass through thermoelectricity, water power etc. often
Rule controllable electric power is supplied to load.And period at noon workload demand is less, now photovoltaic plant is exerted oneself and reaches peak value, is exceeded
Workload demand, can only be sent outside by remote distance power or abandon light mode and ensure the electric energy equilibrium of supply and demand.
As shown in figure 3, to carry out the workload demand after exerting oneself and output of power station curve comparison figure.Using based on it is cold-
The photovoltaic plant of thermo-electrically coproduction is exerted oneself after quick regulation and control method, and the morning peak period can be reduced by photovoltaic plant self-control
More than 20% electric power breach；Period at noon photovoltaic plant sends out electric energy unnecessary and can be used for cold water reservoir refrigeration；During electricity consumption evening peak
The electric energy breach at section initial stage also can obtain a certain degree of making up；The part hot water that power station and peripheral facility can be solved simultaneously is supplied
Answer problem.Comprehensive utilization of energy effect is improved.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of the technology of the present invention principle is not departed from, some improvement and deformation can also be made, these improve and deform
Also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation is exerted oneself quick regulator control system, it is characterised in that：Set in photovoltaic plant
Put and refrigerating plant is installed in warm water tank and cold water reservoir, cold water reservoir, installing and warm water tank and cold water reservoir insertion on photovoltaic component back plate
Hot channel, the water outlet of cold water reservoir accesses the water inlet of hot channel, and the water outlet of hot channel accesses warm water tank.
2. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation according to claim 1 is exerted oneself quick regulator control system, and it is special
Levy and be：When in power supply area electric energy supply exceed demand when, using unnecessary electric energy by being installed in refrigerating plant pair in cold water reservoir
Water in cold water reservoir is freezed.
3. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation according to claim 1 is exerted oneself quick regulator control system, and it is special
Levy and be：When electric energy supply-less-than-demand in power supply area, cold water reservoir inner cold water is injected on photovoltaic component back plate by pipeline
Hot channel, the water flowed out after hot channel circulation accesses warm water tank.
4. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation according to claim 1 is exerted oneself quick regulator control system, and it is special
Levy and be：When there is spike type load to put into power supply area, cold water reservoir inner cold water is injected into photovoltaic component back plate by pipeline
On hot channel, hot channel circulation after flow out water access warm water tank.
5. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation according to claim 1 is exerted oneself quick regulator control system, and it is special
Levy and be：The thermal load demands of hot water supply photovoltaic plant and peripheral facility in warm water tank, unnecessary hot water passes through pipeline certainly
Cold water reservoir is so flowed into after radiating to recycle.
6. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation according to claim 1 is exerted oneself quick regulator control system, and it is special
Levy and be：Hydrodynamic system is also included, drives water to be circulated between cold water reservoir and warm water tank by hydrodynamic system.
7. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation according to claim 1 is exerted oneself quick regulator control system, and it is special
Levy and be：When the timing of radiation parameter one, the expression formula that photovoltaic module EIAJ is varied with temperature is：
Wherein, PT、K、T0, T be respectively photovoltaic module EIAJ, normal temperature T under work temperature0Lower photovoltaic module is most
Exert oneself greatly, temperature coefficient, photovoltaic module standard operating temperature and photovoltaic module actual work temperature.
8. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation according to claim 2 is exerted oneself quick regulation and control method, and it is special
Levy and be：When in power supply area electric energy supply exceed demand when, the water in cold water reservoir is freezed using unnecessary electric energy, make P1=
PREF+L1；
Wherein P1、PREF、L1Photovoltaic generation active power output, refrigeration work consumption when respectively supply exceed demand in electric energy supply area and
Workload demand.
9. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation according to claim 3 is exerted oneself quick regulator control system, and it is special
Levy and be：When electric energy supply-less-than-demand in power supply area, the cold water flowed out using cold water reservoir passes through the hot channel pair on backboard
Backboard is cooled down, and makes L2=P2+ΔP2；
Wherein L2、P2、ΔP2Workload demand respectively in electric energy supply area during supply-less-than-demand, photovoltaic plant is uncolled cooling
Exert oneself and the increment of exerting oneself after photovoltaic plant cools.
10. a kind of photovoltaic plant produced based on cold-hot-Electricity Federation according to claim 4 is exerted oneself quick regulator control system, and it is special
Levy and be：When there is spike type load to put into power supply area, according to dispatch command, cool photovoltaic plant place in advance
Reason, makes
WhereinWorkload demand, peakload demand, point respectively before peakload input
The nargin of exerting oneself that photovoltaic plant before peak load input is exerted oneself and to be formed by cooling.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107506873A (en) * | 2017-09-21 | 2017-12-22 | 武汉大学 | Water scene station group synergistic combination division methods and system based on regulation performance |
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| CN107506873A (en) * | 2017-09-21 | 2017-12-22 | 武汉大学 | Water scene station group synergistic combination division methods and system based on regulation performance |
| CN107506873B (en) * | 2017-09-21 | 2020-10-30 | 武汉大学 | Water-wind photoelectric station group collaborative optimization scheduling method and system based on adjustment performance |
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