CN110725778A - Solar energy and wind energy combined energy storage power generation system and method - Google Patents
Solar energy and wind energy combined energy storage power generation system and method Download PDFInfo
- Publication number
- CN110725778A CN110725778A CN201911183850.9A CN201911183850A CN110725778A CN 110725778 A CN110725778 A CN 110725778A CN 201911183850 A CN201911183850 A CN 201911183850A CN 110725778 A CN110725778 A CN 110725778A
- Authority
- CN
- China
- Prior art keywords
- heat
- energy storage
- carbon dioxide
- power generation
- molten salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 75
- 238000010248 power generation Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 132
- 150000003839 salts Chemical class 0.000 claims abstract description 83
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 66
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 66
- 238000010521 absorption reaction Methods 0.000 claims abstract description 25
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000005338 heat storage Methods 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/17—Combinations of wind motors with apparatus storing energy storing energy in pressurised fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/18—Combinations of wind motors with apparatus storing energy storing heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
-
- 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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a solar energy and wind energy combined energy storage power generation system and a method, which comprises a supercritical carbon dioxide energy storage power generation system, a wind power generation system, a fused salt energy storage system, a mirror field and a heat collector, wherein the outlet of the fused salt energy storage system is communicated with the heat absorption side inlet of the supercritical carbon dioxide energy storage and generation system, the heat absorption side outlet of the supercritical carbon dioxide energy storage and generation system is communicated with the inlet of the fused salt energy storage system, the solar rays are refracted by a mirror field and then irradiated into the heat collector, the heat absorption side inlet of the fused salt energy storage system is communicated with the outlet of the heat collector, the heat absorption side outlet of the fused salt energy storage system is communicated with the inlet of the heat collector, the wind power generation system is connected with the power supply interface of the compressor in the supercritical carbon dioxide energy storage and generation system, the system and the method can realize the combination of solar photo-thermal heat storage and wind energy compression supercritical carbon dioxide energy storage power generation.
Description
Technical Field
The invention belongs to the field of wind energy and solar energy power generation, and relates to a solar energy and wind energy combined energy storage power generation system and method.
Background
Solar energy is an energy source generated by solar radiation, wind energy is kinetic energy of air flowing on the surface of the earth, and the two energy sources are rich in resources, have no pollution to the environment and are increasingly used for generating electricity. Due to the influence of weather, solar energy and wind energy are unstable, and the stable and continuous output of electric power cannot be ensured when the solar energy and wind energy are used for power generation. In recent years, energy storage technology has been rapidly developed. The energy storage system can realize large-capacity heat or energy storage, and stably releases the heat or energy for power generation or other utilization when the energy is needed.
The molten salt energy storage technology is the mainstream high-temperature heat storage technology in the world at present, has low cost, and is widely applied to photo-thermal power generation energy storage in countries such as Europe. The compressed air energy storage refers to an energy storage mode that electric energy is used for compressing air in a low-load valley period of a power grid, the air is sealed in a scrapped mine, a settled seabed gas storage tank, a cave, an overdue oil and gas well or a newly-built gas storage well at high pressure, and the compressed air is released to push a steam turbine to generate electricity in a high-load peak period of the power grid. Even if the air is compressed, the density of the air is still low, and a large-scale air storage device needs to be built.
The use of carbon dioxide instead of air as the working medium for energy storage is an effective solution to the above problems. Carbon dioxide is non-toxic, non-flammable, high in density, and critical temperature (T)c31.1 deg.C, lower critical pressure (P)c7.38MPa), the density of supercritical carbon dioxide is close to liquid, the viscosity is close to gas, the fluid has better fluidity and transmission characteristic, the volume is obviously reduced, the compressed supercritical carbon dioxide is used for storing energy, the scale of a storage system can be obviously reduced, the cost is reduced, and the application is more flexible.
In the currently published reports about solar energy and wind energy combined energy storage, for example, the Chinese patent CN 207064027U combines compressed air energy storage with solar energy heat storage, and the Chinese patent CN 207603498U combines photovoltaic power generation and wind power generation with storage battery energy storage, and no report combines solar photothermal heat storage with wind energy compression supercritical carbon dioxide energy storage and power generation is available.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a solar energy and wind energy combined energy storage power generation system and method, which can realize the combination of solar photo-thermal heat storage and wind energy compression supercritical carbon dioxide energy storage power generation.
In order to achieve the purpose, the solar energy and wind energy combined energy storage power generation system comprises a supercritical carbon dioxide energy storage power generation system, a wind power generation system, a molten salt energy storage system, a mirror field and a heat collector, wherein an outlet of the molten salt energy storage system is communicated with an inlet at the heat absorption side of the supercritical carbon dioxide energy storage power generation system, an outlet at the heat absorption side of the supercritical carbon dioxide energy storage power generation system is communicated with an inlet of the molten salt energy storage system, solar rays are irradiated into the heat collector after being refracted by the mirror field, an inlet at the heat absorption side of the molten salt energy storage system is communicated with an outlet of the heat collector, an outlet at the heat absorption side of the molten salt energy storage system is communicated with an inlet of the heat collector, and the wind power generation.
The molten salt energy storage system comprises a high-temperature molten salt tank and a low-temperature molten salt tank, and the supercritical carbon dioxide energy storage power generation system comprises a heat exchanger, a motor, a turbine, a heat regenerator, a low-pressure tank, a compressor, a high-pressure tank, a heat regenerator and a generator;
the outlet of the high-temperature molten salt tank is communicated with the heat release side inlet of the heat exchanger, the heat release side outlet of the heat exchanger is communicated with the inlet of the low-temperature molten salt tank, the outlet of the low-temperature molten salt tank is communicated with the inlet of the heat collector, and the outlet of the heat collector is communicated with the inlet of the high-temperature molten salt tank;
the heat absorption side outlet of the heat exchanger is communicated with the heat absorption side inlet of the heat exchanger through a turbine, the heat release side of the heat regenerator, the low-pressure tank, the compressor, the high-pressure tank and the heat absorption side of the heat regenerator in sequence, the turbine is connected with the output shaft of the generator, the motor is connected with the driving shaft of the compressor, and the power supply interface of the motor is connected with the output end of the wind power generation system.
The wind power generation system comprises a windmill and a windmill generator, wherein a driving shaft of the windmill generator is connected with the windmill, and an output end of the windmill generator is connected with a power interface of the motor.
The solar energy and wind energy combined energy storage power generation method comprises the following steps:
under the conditions of normal solar irradiation and normal wind power, sunlight is focused on a heat collector by a mirror field, molten salt in the heat collector is heated and then enters a high-temperature molten salt tank, solar energy is stored in the high-temperature molten salt tank 3 in the form of sensible heat of the high-temperature molten salt, the high-temperature molten salt stored in the high-temperature molten salt tank enters a heat exchanger to heat supercritical carbon dioxide and then enters a low-temperature molten salt tank, and the low-temperature molten salt stored in the low-temperature molten salt tank enters the heat collector to be reheated; the electric energy generated by the wind power generation system drives the motor to work, the motor drives the compressor to work, the supercritical carbon dioxide output by the heat exchanger enters the turbine to do work, the turbine drives the generator to generate power, the carbon dioxide output by the turbine enters the low-pressure tank after being sequentially subjected to heat release by the heat regenerator and cooling by the cooler, the carbon dioxide output by the low-pressure tank enters the high-pressure tank after being compressed by the compressor, and the carbon dioxide output by the high-pressure tank enters the heat exchanger to absorb heat after being subjected to heat release by the heat regenerator so as to form high-temperature supercritical carbon dioxide;
when solar irradiation is abnormal, the heat collector cannot heat the molten salt, and the high-temperature molten salt stored in the high-temperature molten salt tank enters the heat exchanger to heat carbon dioxide to form high-temperature supercritical carbon dioxide so as to maintain the operation of the supercritical carbon dioxide energy storage power generation system;
when wind power is abnormal, the wind power generation system cannot normally operate, carbon dioxide stored in the high-pressure tank enters the heat exchanger after being reheated by the heat regenerator, and then high-temperature supercritical carbon dioxide is formed by heat exchange of the heat exchanger so as to maintain the operation of the supercritical carbon dioxide energy storage power generation system.
The invention has the following beneficial effects:
the solar energy and wind energy combined energy storage power generation system and the method thereof utilize solar energy to store in the form of sensible heat of molten salt, electricity generated by wind energy is compressed into carbon dioxide by a compressor and stored in the form of high-pressure carbon dioxide, and then the sensible heat of the molten salt is released to the high-pressure carbon dioxide by a heat exchanger to form high-temperature supercritical carbon dioxide so as to maintain the work of the supercritical carbon dioxide power generation system, thereby realizing the combination of solar photo-thermal heat storage and wind energy compression supercritical carbon dioxide energy storage power generation.
Drawings
FIG. 1 is a schematic structural view of the present invention.
Wherein, 1 is a mirror field, 2 is a heat collector, 3 is a high-temperature molten salt tank, 4 is a heat exchanger, 5 is a low-temperature molten salt tank, 6 is a windmill, 7 is a windmill generator, 8 is a motor, 9 is a compressor, 10 is a high-pressure tank, 11 is a heat regenerator, 12 is a turbine, 13 is a generator, 14 is a cooler, and 15 is a low-pressure tank.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the solar energy and wind energy combined energy storage power generation system comprises a supercritical carbon dioxide energy storage power generation system, a wind power generation system, a molten salt energy storage system, a mirror field 1 and a heat collector 2, wherein an outlet of the molten salt energy storage system is communicated with an inlet of a heat absorption side of the supercritical carbon dioxide energy storage power generation system, an outlet of the heat absorption side of the supercritical carbon dioxide energy storage power generation system is communicated with an inlet of the molten salt energy storage system, solar rays are irradiated into the heat collector 2 after being refracted by the mirror field 1, an inlet of the heat absorption side of the molten salt energy storage system is communicated with an outlet of the heat collector 2, an outlet of the heat absorption side of the molten salt energy storage system is communicated with an inlet of the heat collector 2, and the wind power generation system is.
The molten salt energy storage system comprises a high-temperature molten salt tank 3 and a low-temperature molten salt tank 5, and the supercritical carbon dioxide energy storage power generation system comprises a heat exchanger 4, a motor 8, a turbine 12, a heat regenerator 11, a low-pressure tank 15, a compressor 9, a high-pressure tank 10, a heat regenerator 11 and a power generator 13; an outlet of the high-temperature molten salt tank 3 is communicated with a heat release side inlet of the heat exchanger 4, a heat release side outlet of the heat exchanger 4 is communicated with an inlet of the low-temperature molten salt tank 5, an outlet of the low-temperature molten salt tank 5 is communicated with an inlet of the heat collector 2, and an outlet of the heat collector 2 is communicated with an inlet of the high-temperature molten salt tank 3; the heat absorption side outlet of the heat exchanger 4 is communicated with the heat absorption side inlet of the heat exchanger 4 through a turbine 12, the heat release side of a heat regenerator 11, a low pressure tank 15, a compressor 9, a high pressure tank 10 and the heat absorption side of the heat regenerator 11 in sequence, the turbine 12 is connected with the output shaft of a generator 13, an electric motor 8 is connected with the driving shaft of the compressor 9, the power supply interface of the electric motor 8 is connected with the output end of a wind power generation system, in addition, the wind power generation system comprises a windmill 6 and a windmill generator 7, wherein the driving shaft of the windmill generator 7 is connected with the windmill 6, and the output end of the windmill generator 7 is connected with the power.
The solar energy and wind energy combined energy storage power generation method comprises the following steps:
under the conditions of normal solar irradiation and normal wind power, sunlight is focused on a heat collector 2 by a mirror field 1, molten salt in the heat collector 2 is heated and then enters a high-temperature molten salt tank 3, solar energy is stored in the high-temperature molten salt tank 3 in the form of sensible heat of the high-temperature molten salt, the high-temperature molten salt stored in the high-temperature molten salt tank 3 enters a heat exchanger 4 to heat supercritical carbon dioxide and then enters a low-temperature molten salt tank 5, and the low-temperature molten salt stored in the low-temperature molten salt tank 5 enters the heat collector 2 to be reheated; the electric energy generated by the wind power generation system drives the motor 8 to work, the motor 8 drives the compressor 9 to work, the supercritical carbon dioxide output by the heat exchanger 4 enters the turbine 12 to do work, the turbine 12 drives the generator 13 to generate electricity, the carbon dioxide output by the turbine 12 enters the low-pressure tank 15 after being sequentially subjected to heat release by the heat regenerator 11 and cooling by the cooler 14, the carbon dioxide output by the low-pressure tank 15 is compressed by the compressor 9 and then enters the high-pressure tank 10, and the carbon dioxide output by the high-pressure tank 10 enters the heat exchanger 4 to absorb heat after being subjected to heat regeneration by the heat regenerator 11 so as to form high-temperature supercritical carbon dioxide;
when solar irradiation is abnormal, the heat collector 2 cannot heat the molten salt, and the high-temperature molten salt stored in the high-temperature molten salt tank 3 enters the heat exchanger 4 to heat carbon dioxide to form high-temperature supercritical carbon dioxide so as to maintain the operation of the supercritical carbon dioxide energy storage power generation system;
when wind power is abnormal, the wind power generation system cannot normally operate, carbon dioxide stored in the high-pressure tank 10 is used for entering the heat exchanger 4 after being reheated by the heat regenerator 11, and then high-temperature supercritical carbon dioxide is formed through heat exchange of the heat exchanger 4, so that the operation of the supercritical carbon dioxide energy storage power generation system is maintained.
It should be noted that the above-mentioned embodiments are only for illustrating the technical idea and features of the present invention, and the specific implementation methods, such as the type of the compressor 9, the types of the high pressure tank 10 and the low pressure tank 15, etc., can be modified and improved without departing from the scope and the basic spirit of the present invention as defined in the claims.
Claims (4)
1. The solar energy and wind energy combined energy storage power generation system is characterized by comprising a supercritical carbon dioxide energy storage power generation system, a wind power generation system, a fused salt energy storage system, a mirror field (1) and a heat collector (2), wherein an outlet of the fused salt energy storage system is communicated with an inlet of a heat absorption side of the supercritical carbon dioxide energy storage power generation system, an outlet of the heat absorption side of the supercritical carbon dioxide energy storage power generation system is communicated with an inlet of the fused salt energy storage system, solar rays are irradiated into the heat collector (2) after being refracted by the mirror field (1), an inlet of the heat absorption side of the fused salt energy storage system is communicated with an outlet of the fused salt energy storage system, an outlet of the heat absorption side of the fused salt energy storage system is communicated with an inlet of the heat collector (2), and the wind power generation system is connected with a power supply.
2. The solar energy and wind energy combined energy storage and power generation system according to claim 1, wherein the molten salt energy storage system comprises a high-temperature molten salt tank (3) and a low-temperature molten salt tank (5), and the supercritical carbon dioxide energy storage and power generation system comprises a heat exchanger (4), a motor (8), a turbine (12), a regenerator (11), a low-pressure tank (15), a compressor (9), a high-pressure tank (10), a regenerator (11) and a generator (13);
an outlet of the high-temperature molten salt tank (3) is communicated with a heat release side inlet of the heat exchanger (4), a heat release side outlet of the heat exchanger (4) is communicated with an inlet of the low-temperature molten salt tank (5), an outlet of the low-temperature molten salt tank (5) is communicated with an inlet of the heat collector (2), and an outlet of the heat collector (2) is communicated with an inlet of the high-temperature molten salt tank (3);
the heat absorption side outlet of the heat exchanger (4) is communicated with the heat absorption side inlet of the heat exchanger (4) through a turbine (12), the heat release side of a heat regenerator (11), a low-pressure tank (15), a compressor (9), a high-pressure tank (10) and the heat absorption side of the heat regenerator (11) in sequence, the turbine (12) is connected with the output shaft of a generator (13), a motor (8) is connected with the driving shaft of the compressor (9), and the power interface of the motor (8) is connected with the output end of a wind power generation system.
3. Solar-wind energy combined storage and generation system according to claim 2, characterized in that the wind power generation system comprises a windmill (6) and a windmill generator (7), wherein the driving shaft of the windmill generator (7) is connected with the windmill (6), and the output end of the windmill generator (7) is connected with the power interface of the electric motor (8).
4. The solar energy and wind energy combined energy storage power generation method is characterized in that the solar energy and wind energy combined energy storage power generation system based on claim 2 comprises the following steps:
under the conditions of normal solar irradiation and normal wind power, sunlight is focused on a heat collector (2) by a mirror field (1), molten salt in the heat collector (2) is heated and then enters a high-temperature molten salt tank (3), solar energy is stored in the high-temperature molten salt tank (3) in the form of sensible heat of the high-temperature molten salt, the high-temperature molten salt stored in the high-temperature molten salt tank (3) enters a heat exchanger (4) to heat supercritical carbon dioxide, then enters a low-temperature molten salt tank (5), and the low-temperature molten salt stored in the low-temperature molten salt tank (5) enters the heat collector (2) to be reheated; the electric energy generated by the wind power generation system drives a motor (8) to work, the motor (8) drives a compressor (9) to work, supercritical carbon dioxide output by a heat exchanger (4) enters a turbine (12) to do work, the turbine (12) drives a generator (13) to generate power, the carbon dioxide output by the turbine (12) enters a low-pressure tank (15) after being released heat by a heat regenerator (11) and cooled by a cooler (14) in sequence, the carbon dioxide output by the low-pressure tank (15) enters a high-pressure tank (10) after being compressed by the compressor (9), and the carbon dioxide output by the high-pressure tank (10) enters the heat exchanger (4) to absorb heat after being reheated by the heat regenerator (11) so as to form high-temperature supercritical carbon dioxide;
when solar irradiation is abnormal, the heat collector (2) cannot heat the molten salt, and the high-temperature molten salt stored in the high-temperature molten salt tank (3) enters the heat exchanger (4) to heat carbon dioxide to form high-temperature supercritical carbon dioxide so as to maintain the operation of the supercritical carbon dioxide energy storage power generation system;
when wind power is abnormal, the wind power generation system cannot normally operate, carbon dioxide stored in the high-pressure tank (10) is used for entering the heat exchanger (4) after being reheated by the heat regenerator (11), and then the carbon dioxide is subjected to heat exchange by the heat exchanger (4) to form high-temperature supercritical carbon dioxide so as to maintain the operation of the supercritical carbon dioxide energy storage power generation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183850.9A CN110725778A (en) | 2019-11-27 | 2019-11-27 | Solar energy and wind energy combined energy storage power generation system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183850.9A CN110725778A (en) | 2019-11-27 | 2019-11-27 | Solar energy and wind energy combined energy storage power generation system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110725778A true CN110725778A (en) | 2020-01-24 |
Family
ID=69226189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911183850.9A Pending CN110725778A (en) | 2019-11-27 | 2019-11-27 | Solar energy and wind energy combined energy storage power generation system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110725778A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154500A (en) * | 2021-03-17 | 2021-07-23 | 华能苏州热电有限责任公司 | Wind energy utilization method and device based on cogeneration coupling molten salt heat storage |
| CN113389687A (en) * | 2021-08-06 | 2021-09-14 | 深圳朴坂科技有限公司 | Novel power generation device applying wind energy compression |
| CN115288937A (en) * | 2022-02-17 | 2022-11-04 | 兰州理工大学 | Transcritical wind power direct compression carbon dioxide cycle power generation method and device |
| CN116845933A (en) * | 2023-09-01 | 2023-10-03 | 山西中能天胜科技有限公司 | Power distribution system based on steam heat exchange coupling electrode heating fused salt |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001193419A (en) * | 2000-01-11 | 2001-07-17 | Yutaka Maeda | Combined power generating system and its device |
| US20080000231A1 (en) * | 2006-06-30 | 2008-01-03 | United Technologies Corporation | High temperature molten salt receiver |
| US20100024421A1 (en) * | 2006-12-08 | 2010-02-04 | United Technologies Corporation | Supercritical co2 turbine for use in solar power plants |
| CN103967616A (en) * | 2013-02-01 | 2014-08-06 | 株式会社日立制作所 | Thermal power generation system |
| CN105201579A (en) * | 2015-10-16 | 2015-12-30 | 上海晶电新能源有限公司 | Supercritical carbon dioxide power generation system based on secondary reflection condensation heat-absorption technique |
| US20160146193A1 (en) * | 2013-06-16 | 2016-05-26 | Seamus Dominic Garvey | Direct-Drive Power Conversion System for Wind Turbines Compatible with Energy Storage |
| CN107576083A (en) * | 2016-07-04 | 2018-01-12 | 张建城 | Groove type solar gas burning mutual compensation thermal electric generator |
| JP2018204601A (en) * | 2017-05-30 | 2018-12-27 | 一般財団法人電力中央研究所 | Power generation system producing fuel and raw material |
| JP3223710U (en) * | 2019-08-16 | 2019-10-24 | 四季洋圃生物機電股▲ふん▼有限公司 | Supercritical power generation structure |
| CN211038914U (en) * | 2019-11-27 | 2020-07-17 | 西安热工研究院有限公司 | Solar energy and wind energy combined energy storage power generation system |
-
2019
- 2019-11-27 CN CN201911183850.9A patent/CN110725778A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001193419A (en) * | 2000-01-11 | 2001-07-17 | Yutaka Maeda | Combined power generating system and its device |
| US20080000231A1 (en) * | 2006-06-30 | 2008-01-03 | United Technologies Corporation | High temperature molten salt receiver |
| US20100024421A1 (en) * | 2006-12-08 | 2010-02-04 | United Technologies Corporation | Supercritical co2 turbine for use in solar power plants |
| CN103967616A (en) * | 2013-02-01 | 2014-08-06 | 株式会社日立制作所 | Thermal power generation system |
| US20160146193A1 (en) * | 2013-06-16 | 2016-05-26 | Seamus Dominic Garvey | Direct-Drive Power Conversion System for Wind Turbines Compatible with Energy Storage |
| CN105201579A (en) * | 2015-10-16 | 2015-12-30 | 上海晶电新能源有限公司 | Supercritical carbon dioxide power generation system based on secondary reflection condensation heat-absorption technique |
| CN107576083A (en) * | 2016-07-04 | 2018-01-12 | 张建城 | Groove type solar gas burning mutual compensation thermal electric generator |
| JP2018204601A (en) * | 2017-05-30 | 2018-12-27 | 一般財団法人電力中央研究所 | Power generation system producing fuel and raw material |
| JP3223710U (en) * | 2019-08-16 | 2019-10-24 | 四季洋圃生物機電股▲ふん▼有限公司 | Supercritical power generation structure |
| CN211038914U (en) * | 2019-11-27 | 2020-07-17 | 西安热工研究院有限公司 | Solar energy and wind energy combined energy storage power generation system |
Non-Patent Citations (1)
| Title |
|---|
| 周驰;向文国;陈时熠;徐游波;: "具有CO_2负排放的风电高温储能系统模拟", 电力系统自动化, no. 03 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154500A (en) * | 2021-03-17 | 2021-07-23 | 华能苏州热电有限责任公司 | Wind energy utilization method and device based on cogeneration coupling molten salt heat storage |
| CN113389687A (en) * | 2021-08-06 | 2021-09-14 | 深圳朴坂科技有限公司 | Novel power generation device applying wind energy compression |
| CN115288937A (en) * | 2022-02-17 | 2022-11-04 | 兰州理工大学 | Transcritical wind power direct compression carbon dioxide cycle power generation method and device |
| CN116845933A (en) * | 2023-09-01 | 2023-10-03 | 山西中能天胜科技有限公司 | Power distribution system based on steam heat exchange coupling electrode heating fused salt |
| CN116845933B (en) * | 2023-09-01 | 2023-11-28 | 山西中能天胜科技有限公司 | Power distribution system based on steam heat exchange coupling electrode heating fused salt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204610203U (en) | A kind of adiabatic compression air energy-storage and the integrated system of solar energy | |
| CN106224041B (en) | A kind of electric heating energy-storage system | |
| CN110725778A (en) | Solar energy and wind energy combined energy storage power generation system and method | |
| CN101915224B (en) | Tower type solar energy circulating heat power generating system | |
| CN104405599B (en) | Fuel gas-supercritical carbon dioxide united power electricity generation system utilizing solar energy | |
| CN211038914U (en) | Solar energy and wind energy combined energy storage power generation system | |
| CN207064027U (en) | The air compressed energy-storage and generating integrated system of wind light mutual complementing | |
| CN106907203A (en) | The air compressed energy-storage and generating integrated system of wind light mutual complementing | |
| CN102758690A (en) | Efficient high-pressure liquid air energy storage/release system | |
| JP2011017449A (en) | Turbine system, and system and method for supplying energy to supercritical carbon dioxide turbine | |
| CN111075671A (en) | Coupling integrated solar energy, supercritical carbon dioxide and compressed air energy storage power generation system | |
| CN102758748A (en) | High-pressure liquid air energy storage/release system | |
| CN110594111A (en) | Solar transcritical carbon dioxide Rankine cycle and compressed air energy storage coupling system | |
| CN209704778U (en) | A kind of tower-type solar thermal power generating system | |
| CN216381532U (en) | Compressed air energy storage system | |
| CN201916139U (en) | Tower type solar circulation thermal generating system | |
| CN115263696A (en) | Solar power generation system for coupling compressed carbon dioxide energy storage | |
| CN211777807U (en) | Compressed air energy storage system thermally coupled with wind power generation and solar light | |
| CN202811238U (en) | High-pressure liquid-state air energy storage/release system | |
| CN101936274A (en) | Thermal power generation system based on gas turbine circulation in solar energy regeneration reheating inter-cooling | |
| CN115075903A (en) | Photo-thermal enhanced supercritical carbon dioxide energy storage system and method | |
| CN202811079U (en) | High-efficiency and high-pressure liquid air energy storage/ release system | |
| CN207299595U (en) | A kind of sun set thermal field and compressed gas energy storage combined operation system | |
| CN104295328B (en) | A kind of medium energy engine device and mode of work-doing thereof | |
| CN212063507U (en) | Energy storage equipment of photovoltaic off-grid power generation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200124 |