CN209692366U - A kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system - Google Patents
A kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system Download PDFInfo
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- CN209692366U CN209692366U CN201920026445.5U CN201920026445U CN209692366U CN 209692366 U CN209692366 U CN 209692366U CN 201920026445 U CN201920026445 U CN 201920026445U CN 209692366 U CN209692366 U CN 209692366U
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
A kind of photovoltaic for electric power isolated network of the application and photothermal complementary electricity generation system, including photo-thermal power station, photovoltaic plant, photo-thermal photovoltaic power generation complementation control system, transformation and increasing apparatus, wherein, the photo-thermal power station includes heat reservoir, the installed capacity of the photoelectricity heat stations are as follows: the electric power isolated network highest electric load/(1- photo-thermal station service power consumption rate)；The installed capacity of the photovoltaic plant are as follows: the system effectiveness of (moment at high noon isolated network electric load-photo-thermal minimum operation load online power)/photovoltaic plant；The photo-thermal photovoltaic power generation complementation control system includes weather prognosis system, photovoltaic power generation forecasting system and photo-thermal power generation regulator control system；The transformation and increasing apparatus are public by the photo-thermal power station and the photovoltaic plant.
Description
Technical field
The utility model relates to solar energy generation technology fields, and more particularly, to a kind of for electric power isolated network
Photovoltaic and photothermal complementary electricity generation system.
Background technique
With the rapid development of social economy, energy demand is growing day by day.Traditional energy generates largely during utilization
Pollution, solar energy generation technology are developed rapidly as the energy supply mode of clean and effective.
In remote districts, the cost for setting up power network line is very high.Therefore, solar energy can be used with adaptation to local conditions
Heat power generation and photovoltaic power generation set up electric power isolated network, provide power supply for nearby residents and industrial department.
Photovoltaic power generation has the advantages that photoelectric conversion efficiency is high, at low cost.But it since solar irradiation power comes and go, makes
It is larger at photovoltaic generating system power swing, and there are hair nights in daytime to stop phenomenon, cause photovoltaic plant to be difficult to provide and continue and steady
Fixed power supply.Photo-thermal power station with heat accumulation can overcome solar irradiation variation and Changes in weather situation, provide stable electricity
Power supply, and there is good fast velocity modulation load-bearing capacity.But in isolated power grid, photo-thermal power station can not take when starting from outer net
Electric power, and higher cost are obtained, the photovoltaic plant in isolated network can start for photo-thermal power station provide electric power, while advantageously reduce complementation
The overall cost of power generation.
Increase photovoltaic installation amount ratio and advantageously reduce cost, but stable electric power can not be provided and sent out, and overcast and rainy and
Night can not generate electricity；The electric power that increase photo-thermal installation amount ratio is conducive to continuous-stable is sent out but cost is higher with respect to photovoltaic.
Therefore the installation amount ratio of photovoltaic and photothermal complemental power-generation how is configured, and how realizes the side of the two complemental power-generation
Method becomes current urgent problem to be solved.
Summary of the invention
For the electric power isolated network that photo-thermal power station and photovoltaic plant are set up, a kind of solar energy for electric power isolated network is proposed
Volt and photothermal complementary electricity generation system, photo-thermal power generation and photovoltaic power generation are be combined with each other, and are had complementary advantages, and are improved electric power isolated network load and are become
Change digestion capability, improves the stability of electric power isolated network.
In a first aspect, providing a kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system, comprising: including
Photo-thermal power station, photovoltaic plant, photo-thermal photovoltaic power generation complementation control system, transformation and increasing apparatus, wherein the photo-thermal power station packet
Include heat reservoir, the installed capacity of the photoelectricity heat stations are as follows: the electric power isolated network highest electric load/(1- photo-thermal station service
Rate)；The installed capacity of the photovoltaic plant are as follows: (moment at high noon isolated network electric load-photo-thermal minimum operation load online power)/
The system effectiveness of the photovoltaic plant；The photo-thermal photovoltaic power generation complementation control system includes weather prognosis system, photovoltaic power generation
Forecasting system and photo-thermal power generation regulator control system；The transformation and increasing apparatus are public by the photo-thermal power station and the photo-thermal power station
With.
With reference to first aspect, in a first possible implementation of that first aspect, the weather prognosis system is for receiving
Collection, prediction meteorologic parameter, and the meteorologic parameter is delivered to the photovoltaic power generation forecasting system, wherein the meteorologic parameter
Including at least one of the following: light resource, temperature, wind speed；The photovoltaic power generation forecasting system is used for according to the photovoltaic electric
The operating parameter and the meteorologic parameter for standing current predict that the photovoltaic power generation of the photovoltaic plant in the period in short-term goes out force parameter,
Wherein, the cycle duration in short-term is between 1 minute to 30 minutes；The photovoltaic power generation forecasting system is also used to photovoltaic power generation
Forecasting system is sent to the photo-thermal power generation regulator control system；The photo-thermal power generation regulator control system is used for according to current electric grid load need
The photovoltaic power generation of summing goes out force parameter, determines the photo-thermal unit output demand of the photo-thermal power station；The photo-thermal power generation regulation
System is also used to the photo-thermal unit generation power output；The photo-thermal power generation regulator control system is also used to the photovoltaic plant
Power is monitored, and is modified according to monitoring result to photovoltaic power generation forecasting system；The photo-thermal power generation regulator control system is also used
It is monitored in photo-thermal power station power output, and is repaired according to the regulation that monitoring result contributes to the photo-thermal unit generation
Just.
With reference to first aspect and its above-mentioned implementation, in the second possible implementation of the first aspect, described
Photo-thermal power station includes solar energy mirror field or heat collecting field, heat absorption or heat-collecting part, heat accumulation component, heat exchange flow control valve, steam hair
Raw or heat exchanger components, steam turbine, generator, condenser.
With reference to first aspect and its above-mentioned implementation, in a third possible implementation of the first aspect, described
Formula calculates the heat storage capacity of heat accumulation component calculated as described below: average negative when heat storage capacity is greater than isolated network night electricity demand
Lotus * 16 hours/steam turbine night is averaged thermoelectric conversion efficiency.
With reference to first aspect and its above-mentioned implementation, in a fourth possible implementation of the first aspect, described
Heat-storage medium is one or more in nitrate, concrete and heat chemistry medium.
With reference to first aspect and its above-mentioned implementation, in the fifth possible implementation of the first aspect, described
Photo-thermal power generation regulator control system is used for the heat exchange flow control valve by adjusting the photo-thermal power station steam generation or heat exchanger components, with
Adjust at least one of following parameters: the steam generation or heat exchanger components entrance heat-storage medium, the flow of device of working medium, device of working medium
Temperature.
With reference to first aspect and its above-mentioned implementation, in the sixth possible implementation of the first aspect, described
Photovoltaic plant include photovoltaic cell component, header box, inverter.
With reference to first aspect and its above-mentioned implementation, in a seventh possible implementation of the first aspect, described
The source of electric power isolated network electric power includes at least the photo-thermal power station and the photovoltaic plant.
With reference to first aspect and its above-mentioned implementation, described in the 8th kind of possible implementation of first aspect
Photovoltaic plant is configured with battery, and the capacity of the battery meets the power requirement of the photo-thermal power station black starting-up, Yi Jiman
The foot photo-thermal power station Jing Chang is adjusted to the power capacity requirement of home, and the battery is also used to as the photo-thermal power station
Protection safety power supply.
In conclusion the advantages of the utility model are as follows: for the electric power isolated network that photo-thermal photovoltaic power generation is set up, using photo-thermal light
Power generation complemented control system is lied prostrate, can not only overcome solar irradiation and Changes in weather situation, but also can need with quick response network load
Variation is asked, lasting, stable power supply is provided, cost is advantageously reduced.
Detailed description of the invention
Fig. 1 is the photovoltaic and photothermal complementary electricity generation system schematic diagram for electric power isolated network.
Fig. 2 is the photovoltaic and photothermal complementary power generation system structure schematic diagram for electric power isolated network.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to the utility model
Range.
The utility model develops a kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system, the system
Schematic diagram as shown in Figure 1, structural schematic diagram as shown in Fig. 2, include be equipped with the photo-thermal power station 1 of heat reservoir, photovoltaic plant 2,
Photo-thermal photovoltaic power generation complementation control system 3.
Photo-thermal power station configured with heat reservoir by solar energy mirror field or heat collecting field 11 by solar light focusing to absorbing heat or
Heat-collecting part 12, heat-storage medium absorb heat in heat absorption or heat-collecting part 12 and enter the hot salt cellar 131 in heat accumulation component 13, storage
Thermal medium self-heating salt cellar 131 flows out, and the heat accumulation for entering steam generation or heat exchanger components 15 is adjusted by heat exchange flow control valve 14
Rate-of flow, heat-storage medium occur heat with device of working medium in steam generation or heat exchanger components 15 and exchange, and the heat accumulation after heat release is situated between
Matter returns to the cold salt cellar 132 in heat accumulation component 13, and the self cooling salt cellar 132 of heat-storage medium enters heat absorption or heat-collecting part 12 absorbs heat
Amount, and then complete heat-storage medium heat absorption heat release circulation.Device of working medium after steam generation or heat exchanger components 15 absorb heat becomes
The vapor of high temperature and pressure does work into steam turbine 16, and steam turbine 16 drives generator 17 to rotate, and generator 17 exports alternating current
It is connect with transformation and increasing apparatus 4, the vapor of high temperature and pressure enters condenser 18 from after the acting of steam turbine 16, in condenser 18
Enter steam generation after interior condensation or heat exchanger components 15 continue to absorb heat, and then completes entire circulation.
Photovoltaic plant 2 converts the solar into electric energy by several photovoltaic cell components 21, after electric current enters header box 22
It is accessed after reactive compensation by inverter 23 and the common transformation of photo-thermal power station and increasing apparatus 4.
Photo-thermal photovoltaic power generation complementation control system 3 includes weather prognosis system 31, photovoltaic power generation forecasting system 32 and photo-thermal
Generate electricity regulator control system 33, and the parameters such as light resource, temperature, wind speed in weather prognosis system 31 are input to photovoltaic power generation prediction system
System 32 predicts 1 minute to 30 minutes photovoltaic power generation situation of change according to photovoltaic plant current operating state parameter, and to before
The result of prediction is modified, and photovoltaic power generation prediction result is inputted photo-thermal power generation regulator control system 33, according to electric power isolated network load
Demand adjusts photo-thermal unit generation, realizes that photovoltaic, photo-thermal power generation and workload demand match.
It is electricity using photovoltaic plant 2 and 2 part of photo-thermal power station power output when solar irradiation is lower compared with strong and network load
Net provides electric power, while using the heat accumulation component 13 of photo-thermal power station 1, energy being stored.
When meteorological condition or network load demand fluctuation, 1 minute to 30 minutes is predicted by weather prognosis system 31
Light resource afterwards, temperature, wind speed, and then photovoltaic power generation variation in 1 minute to 30 minutes is predicted by photovoltaic power generation forecasting system 32
Situation quickly adjusts photo-thermal power station steam generation or heat exchanging part by photo-thermal power generation regulator control system 33 according to network load demand
The flow of part 15 entrance heat-storage medium and device of working medium, and then the acting of steam turbine 16 and the power generation of generator 17 are adjusted, quickly dissolve gas
As condition variation and network load demand fluctuation, guarantee that photovoltaic plant 2,1 generated energy of photo-thermal power station meet current isolated network load need
It asks.
When night is without solar irradiation, photovoltaic plant 2 can not provide electric power, and photo-thermal power station 1 can be held using heat accumulation component 13
Supervention electricity, stable power supply is provided for isolated network.
When the photo-thermal power station 1 in electric power isolated network starts, electric power is provided for photo-thermal power station starting using photovoltaic plant 2.
The photovoltaic for electric power isolated network and photothermal complementary electricity generation system of this example can according to weather prognosis result and
Photovoltaic power generation prediction result quickly adjusts photo-thermal power generation, and then the electric power for guaranteeing that photovoltaic, photo-thermal power station export can satisfy isolated network
Electric load fluctuation, consumption meteorological condition variation, provides stable and lasting power supply.Those of ordinary skill in the art can be with
, it is realized that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure and algorithm steps, can with electronic hardware or
The combination of person's computer software and electronic hardware is realized.These functions are implemented in hardware or software actually, are depended on
In the specific application and design constraint of technical solution.Professional technician can carry out using difference each specific application
Method realizes described function, but this realizes it is not considered that exceeding the scope of the utility model.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the utility model can integrate in one processing unit,
It can be each unit to physically exist alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the utility model substantially or
Person says that the part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products,
The computer software product is stored in a storage medium, including some instructions are used so that computer equipment (can be with
Personal computer, server or the network equipment etc.) execute each embodiment the method for the utility model whole or portion
Step by step.And storage medium above-mentioned include: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), with
Machine accesses various Jie that can store program code such as memory (RAM, Random Access Memory), magnetic or disk
Matter.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described with power
Subject to the protection scope that benefit requires.
Claims (9)
1. a kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system characterized by comprising
Photo-thermal power station, photovoltaic plant, photo-thermal photovoltaic power generation complementation control system, transformation and increasing apparatus, wherein
The photo-thermal power station includes heat reservoir, the installed capacity of the photo-thermal power station are as follows: the electric power isolated network highest power load
Lotus/(1- photo-thermal station service power consumption rate)；
Your installed capacity of the photovoltaic plant are as follows: (moment at high noon isolated network electric load-photo-thermal minimum operation load online function
Rate)/the photovoltaic plant system effectiveness；
The photo-thermal photovoltaic power generation complementation control system includes weather prognosis system, photovoltaic power generation forecasting system and photo-thermal power generation tune
Control system；
The transformation and increasing apparatus are public by the photo-thermal power station and the photo-thermal power station.
2. electricity generation system according to claim 1, which is characterized in that
The meteorologic parameter is delivered to the photovoltaic power generation for collecting, predicting meteorologic parameter by the weather prognosis system
Forecasting system, wherein the meteorologic parameter includes at least one of the following: light resource, temperature, wind speed；
The photovoltaic power generation forecasting system is used for according to the current operating parameter of the photovoltaic plant and the meteorologic parameter, prediction
The photovoltaic power generation of the photovoltaic plant goes out force parameter in period in short-term, wherein the cycle duration in short-term was at 1 minute to 30 minutes
Between；
The photovoltaic power generation forecasting system is also used to send photovoltaic power generation forecasting system to the photo-thermal power generation regulator control system；
The photo-thermal power generation regulator control system is used to go out force parameter according to current electric grid workload demand and the photovoltaic power generation, determines institute
State the photo-thermal unit output demand of photo-thermal power station；The photo-thermal power generation regulator control system is also used to the photo-thermal unit generation and goes out
Power；The photo-thermal power generation regulator control system is also used to contribute to the photovoltaic plant and be monitored, and according to monitoring result to photovoltaic
Power generation forecasting system is modified；The photo-thermal power generation regulator control system is also used to contribute to the photo-thermal power station and be monitored, and
It is modified according to the regulation that monitoring result contributes to the photo-thermal unit generation.
3. electricity generation system according to claim 1, which is characterized in that the photo-thermal power station includes solar energy mirror field or thermal-arrest
Field, heat absorption or heat-collecting part, heat accumulation component, heat exchange flow control valve, steam generation or heat exchanger components, generator, coagulate at steam turbine
Vapour device.
4. electricity generation system according to claim 3, which is characterized in that the heat storage capacity of the heat accumulation component is calculated as described below
Formula calculates: average load * 16 hours/steam turbine night when heat storage capacity is greater than isolated network night electricity demand be averaged thermoelectricity turn
Change efficiency.
5. electricity generation system according to claim 3, which is characterized in that the heat-storage medium of the heat accumulation component be nitrate,
It is one or more in concrete and heat chemistry medium.
6. electricity generation system according to any one of claim 1 to 3, which is characterized in that the photo-thermal power generation regulator control system
For the heat exchange flow control valve by adjusting the photo-thermal power station steam generation or heat exchanger components, with adjust following parameters to
Few one kind: the temperature of the steam generation or heat exchanger components entrance heat-storage medium, the flow of device of working medium, device of working medium.
7. electricity generation system according to claim 1, which is characterized in that the photovoltaic plant include photovoltaic cell component,
Header box, inverter.
8. electricity generation system according to claim 1, which is characterized in that the source of the electric power isolated network electric power includes at least institute
State photo-thermal power station and the photovoltaic plant.
9. electricity generation system according to claim 1, which is characterized in that the photovoltaic plant is configured with battery, the storage
The capacity of battery meets the power requirement of the photo-thermal power station black starting-up, and meets the photo-thermal power station Jing Chang and be adjusted to security bit
The power capacity requirement set, the battery are also used to the protection safety power supply as the photo-thermal power station.
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| CN201920026445.5U CN209692366U (en) | 2019-01-07 | 2019-01-07 | A kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687520A (en) * | 2019-01-07 | 2019-04-26 | 浙江中光新能源科技有限公司 | A kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system |
| CN111446921A (en) * | 2020-04-14 | 2020-07-24 | 南京信息工程大学 | Photovoltaic power generation power prediction device |
-
2019
- 2019-01-07 CN CN201920026445.5U patent/CN209692366U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687520A (en) * | 2019-01-07 | 2019-04-26 | 浙江中光新能源科技有限公司 | A kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system |
| CN111446921A (en) * | 2020-04-14 | 2020-07-24 | 南京信息工程大学 | Photovoltaic power generation power prediction device |
| CN111446921B (en) * | 2020-04-14 | 2021-02-02 | 南京信息工程大学 | Photovoltaic power generation power prediction device |
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