CN103967716A - Method for comprehensive application of wind power generation and photo-thermal power generation - Google Patents
Method for comprehensive application of wind power generation and photo-thermal power generation Download PDFInfo
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- CN103967716A CN103967716A CN201410224825.1A CN201410224825A CN103967716A CN 103967716 A CN103967716 A CN 103967716A CN 201410224825 A CN201410224825 A CN 201410224825A CN 103967716 A CN103967716 A CN 103967716A
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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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a method for comprehensive application of wind power generation and photo-thermal power generation. According to the method for comprehensive application of wind power generation and photo-thermal power generation, a wind power plant and a photo-thermal power plant can independently transmit power to a power grid and independently generate power; in addition, the wind power plant and the photo-thermal power plant can be combined through an energy storage system, and the mirror surface area and the occupancy area of a heat collecting field of the photo-thermal power plant with the energy storage function can be reduced through the supplementation of the wind power plant; meanwhile, the energy storage system can store waste power, which can not be transmitted to the power grid, of the wind power plant in an electricity and heat conversion mode, and then stable electricity output is achieved through thermoelectric conversion. Thus it can be seen that through comprehensive application of wind power generation and photo-thermal power generation, the quality of stable power output by the power plants to the power grid can be improved, the waste power of the wind power plant can be fully utilized, the utilization ratio of wind power can be increased, the power generation time of the photo-thermal power plant can be prolonged, the manufacturing cost of the power plants can be reduced, the cost of a kilowatt-hour can be reduced, and the method for comprehensive application of wind power generation and photo-thermal power generation is the preferable solution scheme of new energy application of areas with good wind resources and light resources.
Description
Technical field
The present invention relates to new energy field, specifically, a kind of method for wind-power electricity generation and photothermal power generation integrated application.
Background technique
The problem such as energy shortage, environmental pollution has had a strong impact on people's life and has restricted social development, the development and application of the new energy such as that various countries competitively carry out is clean, renewable energy sources, this is wherein more representational is wind-power electricity generation, photovoltaic generation, photothermal power generation, geothermal power and biomass energy etc.
Wind-power electricity generation is in above new energy family, the advantage low with its cost is able to extensive use in the world, but himself exists the instable defect of generating, cause wind power plant that current most domestic the builds up difficult situation of could not get on to the Net and surf the Net and can not completely send out that generates electricity; Can, to the electric energy of electrical network stable output, even can be used as variable load plant with energy storage photothermal power generation factory, but its cost height is also intrinsic problem.
The method of the wind-power electricity generation the present invention relates to and photothermal power generation integrated application, in wind, the simultaneously good area of light resources, wind-power electricity generation and photothermal power generation can be separately respectively to electrical network transmission of electric energy, Independent Power Generations; Also can wind-power electricity generation and photothermal power generation be joined together by energy-storage system, supplementary heat collecting field minute surface and the floor space that can reduce with energy storage photo-thermal power plant of wind-power electricity generation, reduce photo-thermal power plant cost, simultaneously, energy-storage system can wind power plant the electricity of abandoning of could not get on to the Net store in the mode of electric heating conversion, realize stable electric energy output through thermoelectricity conversion again, improved power plant to the regulated power quality of electrical network output, utilized wind energy turbine set to abandon electricity completely, improved the utilization ratio of wind-powered electricity generation.
Summary of the invention
The method of the wind-power electricity generation the present invention relates to and photothermal power generation integrated application, has solved the unstable problem with can not fully completely sending out of wind power plant's output electric energy, can make wind power plant farthest utilize wind energy resources.Also can pass through complimentary fashion integrated application, reduce band energy storage photothermal power generation factory's heat collecting field minute surface area and floor space, reduce band energy storage photothermal power generation factory cost.
The embodiment of employing of the present invention is:
Any moment of wind power plant 2 is all pursued peak output generating according to wind regime, the electric energy sending, control it by Intelligent electrical network controller 3 and carry set power to electrical network 9, and by unnecessary power delivery the energy-storage system 6 to photothermal power generation field, complete the electric heating energy-storage of wind-powered electricity generation, the energy storage capacity of supplementing photothermal power generation, photothermal power generation utilizes heat energy storage to realize thermoelectric conversion.The application of this kind of energy storage mode, can realize the maximum using of wind power plant 2.
At present, there is the general wind condition of abandoning in wind power plant of China 2, namely abandons electricity.According to relevant department's incomplete statistics in 2012, the whole nation has then and exceedes the wind-powered electricity generation electric energy of 20,000,000,000 thousand ten thousand o'clock and abandoned, if the mode of this part wind-electricity-Re for electric energy-electricity uses, efficiency can reach more than 25%, this has at least the electric energy of 5,000,000,000 thousand ten thousand o'clock to be recovered with regard to meaning, be equivalent to the large thermal power plant generated energy of a year of 1,000,000 kilowatts of electric motor powers, be also equivalent to the medium-sized city power consumption of a year.
Photothermal power generation, is especially with energy storage photothermal power generation, can be as thermal power plant, to the electric energy of electrical network 9 stable outputs.Absorb the electric heating energy-storage from wind-powered electricity generation with energy storage photothermal power generation factory, can reduce the photo-thermal stored energy capacitance of photothermal power generation factory, reduce sun multiple (solar multiple, write a Chinese character in simplified form SM), equal to reduce required heat collecting field 4 minute surface area and floor spaces, well-known, a part for heat collecting field 4 cost Shi Zhan photothermal power generation factory cost maximums, so, reduce heat collecting field 4 minute surface area and floor spaces, can significantly reduce the cost of photothermal power generation factory.
The combination of a certain proportion of wind-power electricity generation and photothermal power generation, can realize photothermal power generation generating in 24 hours, even 24 hours full sending out, and the minute quantity cost that is only transmission of electricity aspect increasing.
Brief description of the drawings
Fig. 1 wind-power electricity generation and photothermal power generation integrated application frame diagram
Wherein, 1, circuit A; 2, wind power plant; 3, Intelligent electrical network controller; 4, photothermal power generation factory heat collecting field; 5, circuit B; 6, energy-storage system; 7, heat exchanger; 8, steam turbine; 9, electrical network.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
As Fig. 1, wind power plant 2 is connected with electrical network by circuit A 1, is connected with photothermal power generation factory energy-storage system 6 by circuit B 5, and wind power plant is controlled by Intelligent electrical network controller 3 to electrical network 9 transmission of electric energy or thermotropism power station energy-storage system 6 transmission of electric energy.Any moment is all pursued peak output generating by wind power plant 2, send energy electric energy, except meeting the desired set power of electrical network, unnecessary electric energy is mainly delivered to the energy-storage system 6 of photothermal power generation factory, give the heating installation power supply in energy-storage system 6, heating energy-accumulating medium, completes electric heating transfer process, namely the electric heating energy-storage of wind-powered electricity generation.
Part wind-powered electricity generation also can be controlled the energy source as photothermal power generation factory autophage by Intelligent electrical network controller 3, can reduce like this loss of the regulated power that photothermal power generation factory sends himself.
The application of this kind of energy storage mode, can realize the maximum using of wind power plant 2.
With the photothermal power generation factory of energy storage, can be slot type, tower, even the photothermal power generation factory of other types, is made up of heat collecting field, energy-storage system and power generation system.Heat collecting field 4 is caught solar energy, by direct or indirect mode, water is converted into steam, and the steam turbine 8 promoting in power generation system is realized generating, realizes stable electric energy and exports to electrical network.
With the photothermal power generation factory of energy storage, heat collecting field 4 costs are maximum constituent elements of power plant's total cost, in heat collecting field design, the scale of heat collecting field 4 determines by design power, direct solar radiation, electricity conversion, sun multiple SM and energy storage duration etc. are common.Sun multiple SM is a key parameter, and energy storage is often longer, and SM is larger for sun multiple, and heat collecting field scale is just larger, and cost is also just higher.If do electric heating energy-storage with the electricity of abandoning of wind-powered electricity generation, the capacity of photo-thermal energy storage just can reduce so, the desirable low value of sun multiple SM, and heat collecting field 4 scales can significantly reduce, and cost is also corresponding significantly to be reduced.
The integrated application of wind-power electricity generation and photothermal power generation, wind-power electricity generation according to a certain percentage and the combination of photothermal power generation, utilize the electricity of abandoning of wind-powered electricity generation to realize electric heating energy-storage completely, be equipped with a small amount of photo-thermal energy storage, can realize photothermal power generation generating in 24 hours, even 24 hours full sending out, and the minute quantity cost that is only wind power plant and photothermal power generation inter-plant transmission of electricity aspect increasing.
Example one:
1,2,3 three 50MW photo-thermal power plant of Hispanic Andasol, design respectively energy storage in 7.5 hours, estimate annual electricity generating capacity 1.65 hundred million kilowatt hours, and sun multiple SM value is 2, heat collecting field minute surface area approximately 510,000 square meters, floor space 2,000,000 square meters.
The photo-thermal power plant of equal design capacity 50MW, if adopt wind-power electricity generation and the application of photothermal power generation integrated complementary, heat collecting field minute surface area can reduce 40%-50%, take up an area and dwindle on an equal basis, in theory, annual electricity generating capacity can reach intrinsic more than 2.5 times, namely 4.1 hundred million kilowatt hours.
Claims (4)
1. a method for wind-power electricity generation and photothermal power generation integrated application, is characterized in that: wind power plant and the integrated complementary application of photothermal power generation factory.
2. the method for a kind of wind-power electricity generation according to claim 1 and photothermal power generation integrated application, is characterized in that: wind-power electricity generation and photothermal power generation can be separately respectively to electrical network transmission of electric energy, Independent Power Generations; Also can wind-power electricity generation and photothermal power generation be joined together by energy-storage system, the unnecessary power delivery of wind-power electricity generation, to photothermal power generation energy-storage system, realizes electric heating energy-storage, supplements the energy storage capacity of photothermal power generation, and photothermal power generation utilizes heat energy storage to realize thermoelectric conversion.
3. the method for a kind of wind-power electricity generation according to claim 1 and photothermal power generation integrated application, is characterized in that: any moment of wind power plant, all according to the generating of wind regime peak output, is realized the maximum using of wind park.
4. the method for a kind of wind-power electricity generation according to claim 1 and photothermal power generation integrated application, is characterized in that: utilize the electric heating energy-storage of wind-power electricity generation, heat collecting field minute surface area and the floor space of photothermal power generation are dwindled, and cost is reduced.
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| CN201410224825.1A CN103967716A (en) | 2014-05-27 | 2014-05-27 | Method for comprehensive application of wind power generation and photo-thermal power generation |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101291125A (en) * | 2008-04-29 | 2008-10-22 | 张瑞棉 | Light, wind, electricity and hot gas multifunctional environment friendly electricity generator |
| CN101539334A (en) * | 2008-03-18 | 2009-09-23 | 韩统 | Wind and sunlight heating storage device |
| CN102062052A (en) * | 2009-11-18 | 2011-05-18 | 中国科学院工程热物理研究所 | Wind and solar hybrid energy storage and power generation integration system and process |
| CN102400872A (en) * | 2011-11-03 | 2012-04-04 | 张建城 | Heat generation device with complementary energy storage of solar energy and wind energy |
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- 2014-05-27 CN CN201410224825.1A patent/CN103967716A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539334A (en) * | 2008-03-18 | 2009-09-23 | 韩统 | Wind and sunlight heating storage device |
| CN101291125A (en) * | 2008-04-29 | 2008-10-22 | 张瑞棉 | Light, wind, electricity and hot gas multifunctional environment friendly electricity generator |
| CN102062052A (en) * | 2009-11-18 | 2011-05-18 | 中国科学院工程热物理研究所 | Wind and solar hybrid energy storage and power generation integration system and process |
| CN102400872A (en) * | 2011-11-03 | 2012-04-04 | 张建城 | Heat generation device with complementary energy storage of solar energy and wind energy |
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Application publication date: 20140806 |