CN113541575B - Photovoltaic power station energy storage matching system and operation method thereof - Google Patents
Photovoltaic power station energy storage matching system and operation method thereof Download PDFInfo
- Publication number
- CN113541575B CN113541575B CN202110679649.0A CN202110679649A CN113541575B CN 113541575 B CN113541575 B CN 113541575B CN 202110679649 A CN202110679649 A CN 202110679649A CN 113541575 B CN113541575 B CN 113541575B
- Authority
- CN
- China
- Prior art keywords
- heat
- cooling
- energy storage
- energy
- outlet
- 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.)
- Active
Links
- 238000004146 energy storage Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 116
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 230000001502 supplementing effect Effects 0.000 claims abstract description 36
- 239000007921 spray Substances 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 18
- 238000005338 heat storage Methods 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 9
- 238000010248 power generation Methods 0.000 claims description 8
- -1 alkyl diphenyl ether Chemical compound 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 7
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Natural products C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009991 scouring Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 7
- 239000000112 cooling gas Substances 0.000 claims 2
- 238000011017 operating method Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 238000005201 scrubbing Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 2
- ZCILODAAHLISPY-UHFFFAOYSA-N biphenyl ether Natural products C1=C(CC=C)C(O)=CC(OC=2C(=CC(CC=C)=CC=2)O)=C1 ZCILODAAHLISPY-UHFFFAOYSA-N 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012983 electrochemical energy storage Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/20—Systems characterised by their energy storage means
-
- 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
- H02J15/00—Systems for storing electric energy
- H02J15/006—Systems for storing electric energy in the form of pneumatic energy, e.g. compressed air energy storage [CAES]
-
- 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
- H02S40/10—Cleaning arrangements
-
- 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
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
-
- 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
- H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
-
- 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
-
- 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
- Y02E10/60—Thermal-PV hybrids
-
- 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)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides an energy storage matching system of a photovoltaic power station and an operation method thereof, wherein the system comprises an energy storage section, an energy release section, a solar energy heat supplementing module and a cooling spray head arranged above a photovoltaic cell; the working medium outlet of the energy storage section is connected with the inlet of the high-pressure air storage chamber, and the working medium outlet of the energy storage section and the outlet of the high-pressure air storage chamber are connected with the working medium inlet of the energy release section; the energy storage section is provided with a two-stage compressor, the outlets of the compressors are provided with coolers, the energy release section is provided with a two-stage expander, and the inlets of the two-stage expander are provided with a preheating heater and a heat supplementing heater; a hot medium outlet of the cooler is communicated with the high-temperature water storage tank, a cold medium outlet of the cooler is communicated with the low-temperature water storage tank, the high-temperature water storage tank is connected with the preheating heater, and a heating medium outlet of the preheating heater is communicated with the low-temperature water storage tank; the working medium inlet and outlet of the solar heat-supplementing module are communicated with the heating medium inlet and outlet of the heat-supplementing heater; the efficiency of the energy storage system can be obviously improved; the solar energy heat supplementing is cleaner, and the carbon emission can be effectively reduced.
Description
Technical Field
The invention relates to the field of physical energy storage, in particular to a photovoltaic power station energy storage matching system and an operation method thereof.
Background
The fluctuation of light resources is large in a short time, and a power grid needs to be scheduled according to loads of a user side, so that the requirement of a photovoltaic power station on energy storage is brought forward. The current policy of new energy source matching energy storage of more provinces is continuously added, and a new energy power station is required to be matched with an energy storage system with rated power generation power of 5-20% before grid-connected power generation. Although the overall construction cost and capacity of the energy storage on the grid side are lower than those on the power generation side, the control and management of the grid are difficult, and therefore the energy storage on the power generation side has its irreplaceability.
The mature large-scale energy storage technologies at the present stage include pumped storage, electrochemical energy storage and compressed air energy storage. Pumped storage has higher requirements on geological conditions; the pollution is serious in the whole life cycle of the electrochemical energy storage, potential safety hazards exist, and the rotational inertia of the system cannot be increased to improve the stability of a power supply system; the compressed air energy storage has small limitation on geographical conditions, the pollution is controllable, active power and reactive power can be independently adjusted by utilizing the characteristics of the synchronous generator, the stability and the system moment of inertia of a power grid are improved, and the photovoltaic energy storage system is suitable for being matched with one of large-scale energy storage of photovoltaic power stations.
In addition, under strong sunshine conditions, the temperature of the photovoltaic cells increases, causing a reduction in the power generation efficiency of the photovoltaic panel, resulting in a reduction in the output power of the photovoltaic power plant and in the system life. The outdoor working environment where the photovoltaic cell is located can lead to long-time work back, and the generating efficiency of photovoltaic cell is further influenced by the surface dust and the foreign matter of photovoltaic board. The problems described above affect the long-term stable and efficient operation of photovoltaic power plants. The dust removal of the large-scale photovoltaic power plant at the present stage mostly adopts seasonal manual dust removal, namely, the surface of the photovoltaic cell is manually washed and cleaned by high-pressure water for 4 times a year, so that the efficiency is low, and the problems of high temperature and efficiency reduction of the photovoltaic cell at noon can not be solved.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an energy storage matching system of a photovoltaic power station and an operation method thereof, which can meet the energy storage requirement of the solar photovoltaic power station; the compression heat recovery module and the solar energy heat compensation module are matched, so that the efficiency of the energy storage system can be obviously improved, and the maintenance cost of the solar power station is reduced; the cooling module is additionally arranged in cooperation with energy storage, so that the operating temperature of the photovoltaic cell can be reduced, and the service life of the cell is prolonged.
The invention is realized by the following technical scheme: a photovoltaic power station energy storage matching system comprises a compressed air energy storage module, a compressed heat recovery module, a solar energy heat supplementing module and a photovoltaic cell cooling module; the photovoltaic cell cooling module comprises a cooling spray head arranged above the photovoltaic cell, and the cooling spray head is communicated with cooling air or a clean water source; the compressed air energy storage module comprises an energy storage section and an energy release section, and an outlet of the energy storage section and an inlet of the energy release section are connected with an inlet of the high-pressure air storage chamber through a control valve;
the energy storage section is provided with a two-stage compressor, the outlets of the compressors are provided with coolers, the energy release section is provided with a two-stage expander, and the inlets of the two-stage expander are provided with a preheating heater and a heat supplementing heater;
the compression heat recovery module comprises the cooler, a low-temperature water storage tank, a high-temperature water storage tank, the preheating heater and the heat supplementing heater;
a hot medium outlet of the cooler is communicated with the high-temperature water storage tank, a cold medium outlet of the cooler is communicated with the low-temperature water storage tank, the high-temperature water storage tank is connected with the preheating heater, and a heating medium outlet of the preheating heater is communicated with the low-temperature water storage tank;
the working medium inlet and outlet of the solar energy heat compensation module is communicated with the heating medium inlet and outlet of the heat compensation heater.
Two stages of compressors in the compressed air energy storage module are driven by a direct-current brushless synchronous motor; the electric energy input end of the direct current brushless synchronous motor is directly connected with a direct current bus of the photovoltaic battery pack.
The solar energy concurrent heating module includes solar collector, exothermic return circuit inlet control valve, heat accumulation return circuit export control valve, packed bed heat accumulator control valve, exothermic return circuit export control valve, heat accumulation return circuit inlet control valve and packed bed heat accumulator, wherein sets up heat accumulation return circuit and exothermic return circuit: in the heat storage loop, a solar heat collector, a heat storage loop outlet control valve, a packed bed heat accumulator control valve and a heat storage loop inlet control valve are communicated in sequence; in the heat release loop, a packed bed heat accumulator, a heat release loop inlet control valve, a heat supplementing heater group, a heat release loop outlet control valve and a packed bed heat accumulator control valve are sequentially communicated, and an inlet and an outlet of the packed bed heat accumulator are working medium inlets and outlets of the solar heat supplementing module.
The solar heat collector adopts a linear Fresnel lens type solar heat collector; the heat exchange medium in the solar energy heat supplementing module adopts heat conduction oil, and the heat conduction oil adopts alkyl diphenyl ether type synthetic heat conduction oil.
The photovoltaic cells are arranged in a matrix to form a photovoltaic cell array, each row of the photovoltaic cell array is provided with a gas supply pipeline, each row is provided with a cooling airflow control valve and a cooling airflow heat exchanger, the gas supply pipeline of each row is communicated with a main pipeline, and the main pipeline is connected with an outlet of a high-pressure gas storage chamber; the cooling spray head is arranged above the geometric center of each photovoltaic cell, and the air outlet of the cooling spray head is 0.5 cm to 3 cm away from the surface of each photovoltaic cell.
The cooling spray head comprises a gas supply section and a contraction acceleration section, the gas supply section is in a straight pipe shape, an upper end top cover is arranged at the upper end of the gas supply section, a horn-shaped opening is formed in the upper end of the gas supply section, a lower molded surface is formed, the upper end top cover adopts an arc-shaped surface and is an upper molded surface, the upper end top cover and the upper end of the gas supply section form the contraction acceleration section, and connecting columns are arranged between the upper end top cover and the upper end of the gas supply section at intervals.
The arc radius of the lower profile is 1/4 to 2/3 of the radius of the pipeline of the air supply section, the arc radius of the upper profile is 3 times to 7 times of the radius of the pipeline of the air supply section, the distance between the outlet of the upper profile and the outlet of the lower profile is 1/20 to 1/10 of the radius of the air supply pipeline, and 3-6 connecting points are arranged between the top cover at the upper end of the cooling spray head and the upper end of the air supply section.
The filling material in the packed bed heat accumulator is cobblestone with the diameter less than 3 cm or steel slag block with the diameter less than 5 cm.
Furthermore, the invention also provides an operation method of the photovoltaic power station energy storage matching system, which comprises an energy storage process and an energy release process;
an energy storage stage: the compressor in the compressed air energy storage module compresses air in stages, compressed high-pressure air enters the high-pressure air storage chamber, the cooler recovers heat energy generated in the compression process by using cooling water of the low-temperature water storage tank, and the cooling water absorbs the heat energy and then enters the high-temperature water storage tank;
energy release stage: the high-pressure air is preheated and heated by the preheating heater and the heat supplementing heater respectively and then enters the expansion machine to do work for power generation; the hot water in the high-temperature water storage tank preheats the compressed air through the preheating heater;
the working medium of the solar energy heat compensation module heats the preheated air through the heat compensation heater, and the working medium flows back to the solar energy heat compensation module after heat exchange; and a cooling sprayer above the photovoltaic cell cools the photovoltaic cell through cooling air, clean water is introduced into the cooling sprayer, and the photovoltaic cell is cleaned according to set time.
An energy storage stage: firstly, cooling water circulation is started, a direct-current brushless synchronous motor is started according to the rotating speed of the direct-current brushless motor under the corresponding power by utilizing the surplus power in a direct-current bus of the photovoltaic cell, the variable working condition compressed air energy storage process is carried out, and compressed air is stored in a high-pressure air storage chamber;
energy release stage: firstly, starting a preheating cycle, then adjusting the state of a corresponding valve, and in the solar heat compensation module during energy release, determining a heat compensation loop according to the environment: if the sunlight is sufficient, the outlet temperature of the solar heat collector can reach the rated outlet temperature, and the heat of the heat supplementing heater is directly provided by the solar heat collector; if the outlet temperature or the outlet speed of the solar thermal collector does not reach a rated value, the heat gap is provided by the packed bed heat accumulator;
when daily cooling and dust removal are carried out, high-pressure air is introduced into the cooling spray head, and when the temperature of the photovoltaic cell is detected to reach or be higher than the set temperature, daily cooling and dust removal are started;
the cooling dust removal process was run in a batch mode: taking photovoltaic cells in 2 to 4 rows as a group, opening the cooling airflow control valve in one row, and closing the cooling airflow control valves in the other rows when the photovoltaic cells are cooled; the cooling airflow control valves in each row are opened and closed in sequence;
when the photovoltaic cell cleaning device is used for cleaning at regular intervals, high-pressure water flow is introduced into the cooling spray head, the cooling air flow control valve is opened line by line, and stains which are difficult to remove in daily dust removal on the surface of the photovoltaic cell are removed by utilizing the powerful scouring effect of the water flow.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the energy storage matching system of the photovoltaic power station, the energy is stored through the compressed air, and the matching of compressed heat recovery and solar energy heat compensation is realized, so that the operation efficiency of the energy storage system is obviously improved; through mutual cooperation of photovoltaic energy storage, photo-thermal energy storage and compressed air energy storage, stable supply of carbon-free clean energy is formed; compared with the compressed air energy storage without heat compensation at the present stage, the solar photo-thermal heat compensation provided by the invention can obviously improve the efficiency of the energy storage system; compared with compressed air energy storage of fossil fuel heat compensation, the solar energy heat compensation system is cleaner and pollution-free, and can effectively reduce carbon emission.
Furthermore, a linear light-gathering Fresnel lens type solar heat collector is adopted in a heat collector of the solar heat-supplementing module, and alkyl diphenyl ether type synthetic heat conduction oil is adopted as heat conduction fluid, so that the requirements of simple integral construction and maintenance of a system can be met, the characteristics of respective working intervals are met, and a good matching relation is formed. Compared with a groove type or butterfly type solar heat collector, the Fresnel lens type heat collector adopted in the invention can obviously reduce the construction and maintenance cost of the whole system, the processing cost of the reflective surface of the groove type solar heat collector is higher, the maintenance is more troublesome, and the better adaptability of the Fresnel lens can improve the application range of the system. The alkyl diphenyl ether type synthetic heat transfer oil has high cyclic utilization rate and low toxicity, and can just adapt to the temperature range of the Fresnel lens although the working temperature range is not particularly large, so that the alkyl diphenyl ether type synthetic heat transfer oil and the Fresnel lens form a good combination.
Furthermore, a cooling spray head is arranged at the center of the solar photovoltaic cell, and the cooling spray head can be used for introducing high-pressure air for daily cooling and dust removal and can also be used for annual decontamination. The shower nozzle sets up the kinetic energy of utilizing the air that can be abundant to diffusion all around in photovoltaic cell's geometric centre position, the energy loss who has avoided arranging the shower nozzle and bring in one end, the shower nozzle can lead to compressed air and be used for daily cooling and dust removal, can improve photovoltaic cell's operating efficiency, the reduction of life that the extension photovoltaic cell brought because thermal decay, the shower nozzle can also lead to low temperature water, a scrubbing for the surperficial scrubbing of photovoltaic cell of year, detach the spot that compressed air is difficult to solve, the extra operation that artifical scrubbing brought has been saved, photovoltaic cell's scrubbing work is more convenient.
Furthermore, compressed air which is daily introduced into a cooling spray head of the solar photovoltaic cell directly comes from the high-pressure air storage chamber, water for air flow cooling directly comes from the low-temperature water storage tank, and compared with a compression pump and a water tank which are independently configured, the system and investment are reduced, on the other hand, the characteristic that the efficiency of a large-scale compressor is higher is fully utilized, and energy loss caused by the high-pressure air compression process for cooling and dust removal is reduced.
Based on the method, high-pressure air is introduced into the cooling spray head for daily cooling and dust removal, the cooling air cools the surface of the photovoltaic cell so that the photovoltaic cell can stably and efficiently work at noon, water is introduced into the cooling spray head for annual decontamination work, the surface of the photovoltaic cell is not required to be manually washed and cleaned, the cleaning frequency can be increased as required, and the cleaning efficiency is increased; the energy storage system can directly utilize the electric energy of the photovoltaic cell, and the compressed air is preheated and heated by the compressed heat recovery module and the solar energy heat supplementing module, so that the gradient utilization of energy is realized, and carbon emission is not generated.
Drawings
Fig. 1 is a schematic diagram of an energy storage supporting system of a photovoltaic power station according to the present invention.
Fig. 2 is a system diagram of a photovoltaic cell cooling module according to an embodiment of the present invention.
Fig. 3 is a front view of the installation of the photovoltaic cell and the cooling spray head in the photovoltaic cell cooling module according to the example of the present invention.
Fig. 4 is a top view of the installation of the photovoltaic cell and the cooling spray head in the photovoltaic cell cooling module according to the example of the invention.
Fig. 5 is a front view of a photovoltaic cell cooling showerhead according to an embodiment of the present invention.
Fig. 6 is a cross-sectional view of a photovoltaic cell cooling showerhead according to an embodiment of the present invention.
In the drawing, 11 is a low-pressure compressor, 12 is a high-pressure compressor, 13 is a high-pressure expander, and 14 is a low-pressure expander; 21 is a first-stage cooler, 22 is a second-stage cooler, 23 is a first-stage preheating heater, 24 is a first-stage heat supplementing heater, 25 is a second-stage preheating heater, and 26 is a second-stage heat supplementing heater; 31 is a high-pressure air storage chamber control valve, 32 is a cooling air flow master control valve, 33 is an air storage control valve, 34 is an exhaust control valve, 35 is a heat release loop inlet control valve, 36 is a heat storage loop outlet control valve, 37 is a packed bed heat storage device control valve, 38 is a heat release loop outlet control valve, and 39 is a heat storage loop inlet control valve; 41 is a high-pressure air storage chamber, 42 is a low-temperature water storage tank, 43 is a high-temperature water storage tank, and 44 is a packed bed heat accumulator; 5 is a solar heat collector; 6 is a photovoltaic cell array, 61 is a cooling spray head, 611 is a cooling spray head gas supply section, 612 is a cooling spray head lower molded surface, 613 is a cooling spray head upper molded surface, and 62 is a photovoltaic cell; 71 is a first cooling air flow heat exchanger, 72 is a second cooling air flow heat exchanger, 73 is a third cooling air flow heat exchanger, 81 is a first cooling air flow control valve, 82 is a second cooling air flow control valve, and 83 is a third cooling air flow control valve; reference numeral 91 denotes a motor, and 92 denotes a generator.
Detailed Description
The present invention is further described in detail below with reference to specific examples:
referring to fig. 1, the invention provides an energy storage supporting system for a photovoltaic power station, which includes a compressed air energy storage module, a compressed heat recovery module, a solar energy heat compensation module and a photovoltaic cell cooling module; the photovoltaic cell cooling module comprises a cooling spray nozzle 61 arranged above the photovoltaic cell, and the cooling spray nozzle 61 is communicated with cooling air or a clean water source; the compressed air energy storage module comprises an energy storage section and an energy release section, and an outlet of the energy storage section and an inlet of the energy release section are connected with an inlet of the high-pressure air storage chamber 41 through a control valve;
the energy storage section is provided with a two-stage compressor, the outlets of the compressors are provided with coolers, the energy release section is provided with a two-stage expander, and the inlets of the two-stage expander are provided with a preheating heater and a heat supplementing heater;
the compression heat recovery module comprises the cooler, a low-temperature water storage tank 42, a high-temperature water storage tank 43, the preheating heater and the heat compensating heater;
the hot medium outlet of the cooler is communicated with the high-temperature water storage tank 43, the cold medium outlet of the cooler is communicated with the low-temperature water storage tank 42, the high-temperature water storage tank 43 is connected with the preheating heater, and the heating medium outlet of the preheating heater is communicated with the low-temperature water storage tank 42;
the working medium inlet and outlet of the solar heat-supplementing module is communicated with the heating medium inlet and outlet of the heat-supplementing heater.
The compressed air energy storage module comprises an energy storage section and an energy release section: the energy storage section comprises a motor 91, a low-pressure compressor 11, a first-stage cooler 21, a high-pressure compressor 12, a second-stage cooler 22, an energy storage control valve 33, a high-pressure air storage chamber control valve 31 and a high-pressure air storage chamber 41 which are connected in sequence; the energy release section comprises a high-pressure air storage chamber 41, a high-pressure air storage chamber control valve 31, an exhaust control valve 34, a first-stage preheating heater 23, a first-stage heat supplementing heater 24, a high-pressure expansion machine 13, a second-stage preheating heater 25, a second-stage heat supplementing heater 26, a low-pressure expansion machine 14 and a generator 92 which are connected in sequence.
The working medium of the compressed air energy storage module is air, the working medium of the compressed heat recovery module is water, the working medium of the photovoltaic cell cooling module is air or water, and the working medium of the solar energy heat supplementing module is heat conduction oil. The heat conduction oil in the solar energy heat supplementing module adopts alkyl biphenyl ether type to synthesize the heat conduction oil. The heat-conducting fluid in the solar energy heat-supplementing module is synthesized into heat-conducting oil in an alkyl biphenyl ether type, so that the requirements of simple system integral construction and maintenance can be met, the characteristics of respective working intervals are met, and a good matching relation is formed. Compared with a groove type or butterfly type solar heat collector, the Fresnel lens type heat collector adopted in the invention can obviously reduce the construction and maintenance cost of the whole system, the processing cost of the reflective surface of the groove type solar heat collector is higher, the maintenance is more troublesome, and the better adaptability of the Fresnel lens can improve the application range of the system. The alkyl diphenyl ether type synthetic heat transfer oil has high cyclic utilization rate and low toxicity, and can just adapt to the temperature range of the Fresnel lens although the working temperature range is not particularly large, so that the alkyl diphenyl ether type synthetic heat transfer oil and the Fresnel lens form a good combination.
In the compressed air energy storage module, a low-pressure compressor 11, a first-stage cooler 21, a high-pressure compressor 12, a second-stage cooler 22, an air storage control valve 33, a high-pressure air storage chamber control valve 31 and a high-pressure air storage chamber 41 are sequentially connected to form an air loop during energy storage; the high-pressure air storage chamber 41, the high-pressure air storage chamber control valve 31, the exhaust control valve 34, the first-stage preheating heater 23, the first-stage heat supplementing heater 24, the high-pressure expander 13, the second-stage preheating heater 25, the second-stage heat supplementing heater 26 and the low-pressure expander 14 are connected in sequence to form an air loop during energy release.
Preferably, the two-stage compressor adopts a single-shaft structure and is driven by a direct-current brushless synchronous motor; the power supply of the direct current brushless synchronous motor is provided by a direct current bus of a photovoltaic cell. The two-stage expander adopts a single-shaft structure and drives the alternating current synchronous generator to be connected with the grid for power generation.
As an alternative embodiment, an in-stage internal cooling process may be included within each stage of the compressor.
The compression heat recovery module comprises a low-temperature water storage tank 42, a cooler group, a high-temperature water storage tank 43 and a preheating heater group, wherein the low-temperature water storage tank 42, the cooler group, the high-temperature water storage tank 43 and the preheating heater group are sequentially connected end to end; wherein, the cooler group comprises a first-stage cooler 21 and a second-stage cooler 22 which are connected in parallel, and the preheating heater group comprises a first-stage preheating heater 23 and a second-stage preheating heater 25 which are connected in parallel.
The solar energy heat supplementing module comprises a packed bed heat accumulator 44, a packed bed heat accumulator control valve 37, a heat accumulation loop inlet control valve 39, a solar heat collector 5, a heat accumulation loop outlet control valve 36, a heat release loop inlet control valve 35, a heat supplementing heater group and a heat release loop outlet control valve 38, and comprises two loops: the packed bed heat accumulator 44, the packed bed heat accumulator control valve 37, the heat accumulation loop inlet control valve 39, the solar heat collector 5 and the heat accumulation loop outlet control valve 36 are communicated to form a heat accumulation loop; and the packed bed regenerator 44, the exothermic circuit inlet control valve 35, the reheat heater group, the exothermic circuit outlet control valve 38, and the packed bed regenerator control valve 37 are in communication to form an exothermic circuit. The heat supplementing heater group comprises a first-stage heat supplementing heater and a second-stage heat supplementing heater which are connected in parallel.
The filling material in the packed bed heat accumulator 44 is cobblestones with a diameter less than 3 cm or steel slag blocks with a diameter less than 5 cm.
Referring to fig. 2, the photovoltaic cell cooling module includes a photovoltaic cell array 6, a connecting line, a cooling air flow heat exchanger, and a cooling air flow control valve; the control valve has the throttling effect. The photovoltaic cell array 6 that is the matrix arrangement all sets up cooling shower nozzle on the photovoltaic cell, and each action is a set of, and the cooling shower nozzle on all photovoltaic cells in the delegation is connected on same root pipeline. Taking the top row of the photovoltaic cell array in fig. 2 as an example, the cooling nozzles of all the photovoltaic cells in the row are connected to the same air supply pipeline, one end of the pipeline is closed, and the other end of the pipeline is connected to the cooling air flow heat exchanger and the cooling air flow control valve and then connected to the main air supply pipeline.
As an example, a plurality of sets of cooling air flow heat exchangers and cooling air flow control valves are provided connected to the main supply air conduit, i.e. the spray heads in the first row are piped to the first cooling air flow heat exchanger 71 and the first cooling air flow control valve 81, the second row is piped to the second cooling air flow heat exchanger 72 and the second cooling air flow control valve 82, and the third row is piped to the third cooling air flow heat exchanger 73 and the third cooling air flow control valve 83.
High-pressure air or water can flow through the main air supply pipeline of the photovoltaic cell cooling module; wherein high pressure air is supplied from the high pressure air receiver 41 and water is supplied from the low temperature water storage tank 42.
As an alternative embodiment, the high-pressure air in the main air supply pipeline of the photovoltaic cell cooling module can also be prepared by: the outlet of the low-pressure compressor 11 is supplied with air cooled by a first-stage cooler 21.
Referring to fig. 3 and 4, the cooling showerhead 61 is disposed above the geometric center of the photovoltaic cell 62 with the outlet holes of the cooling showerhead spaced 0.5 cm to 3 cm from the photovoltaic cell.
Referring to fig. 5 and 6, the cooling spray 61 includes a gas supply section 611 and a contraction acceleration section, the gas supply section 611 is in a straight pipe shape, an upper end cap is disposed at the upper end of the gas supply section 611, the upper and lower profiles of the contraction acceleration section are respectively in a segment of circular arc, wherein the circular arc radius of the lower profile 612 is 1/4 to 2/3 of the pipe radius of the gas supply section 611, the circular arc radius of the upper profile 613 is 3 to 7 times of the pipe radius of the gas supply section 611, the distance between the upper and lower profiles at the outlet is 1/20 to 1/10 of the pipe radius of the gas supply section, and 3 to 6 connecting columns are uniformly disposed between the upper end cap and the lower main body of the cooling spray in the circumferential direction.
Based on the system, the basic working mode comprises 4 parts: energy storage, energy release, daily cooling and dust removal and annual cleaning.
In the energy storage stage, the specific implementation comprises the following steps: step 1, starting cooling water circulation: the low temperature water is pumped out from the low temperature water storage tank 42, flows through the two-stage cooler connected in parallel, and then enters the high temperature water storage tank 43.
Step 2, adjusting the state of the valve: in the compressed air energy storage module, an air storage control valve 33 and a high-pressure air storage chamber control valve 31 are opened, and a cooling air flow master control valve 32 and an exhaust control valve 34 are closed; in the solar thermal module, the thermal storage loop inlet control valve 39, the thermal storage loop outlet control valve 36, and the packed bed thermal storage control valve 37 are opened, and the thermal release loop inlet control valve 35 and the thermal release loop outlet control valve 38 are closed.
Step 3, starting energy storage: in the compressed air energy storage module, the surplus power in the photovoltaic cell direct current bus is utilized, the rotating speed of the direct current brushless motor under the corresponding power is calculated, the direct current brushless synchronous motor 91 is started, the compressed air energy storage process is carried out, and the compressed air is stored in the high-pressure air storage chamber 41; in the solar energy heat supplementing module, the flow speed of heat conduction oil is adjusted according to the temperature at the outlet of the solar heat collector 5, so that high-temperature heat conduction oil flows in from the upper end of the packed bed heat accumulator 44, and heat is stored in the packed bed heat accumulator.
The specific implementation in the energy release stage comprises the following steps: step 1, starting a preheating cycle: the high-temperature water is pumped out from the high-temperature water storage tank 43, flows through the two-stage preheating heaters connected in parallel, and then enters the low-temperature water storage tank 42.
Step 2, adjusting the state of a valve: in the compressed air energy storage module, the exhaust control valve 34 and the high-pressure air receiver control valve 31 are opened, and the cooling air flow master control valve 32 and the air storage control valve 33 are closed. In the solar energy heat supplementing module, if the outlet temperature of the solar heat collector 5 can reach the rated outlet temperature at the moment, the heat release loop inlet control valve 35, the heat release loop outlet control valve 38, the heat storage loop inlet control valve 39 and the heat storage loop outlet control valve 36 are opened, and the packed bed heat storage control valve 37 is closed; if the solar collector outlet temperature does not reach the rated outlet temperature at this time, the heat-releasing circuit inlet control valve 35, the heat-releasing circuit outlet control valve 38, and the packed-bed thermal storage control valve 37 are opened, and the thermal storage circuit inlet control valve 39 and the thermal storage circuit outlet control valve 36 are closed.
Step 3, starting energy release: in the compressed air energy storage module, the expansion of high-pressure air is utilized to do work to drive the alternating current synchronous motor 92 to generate electricity, the output power of the generator to be generated is stable, and grid-connected electricity generation is carried out after grid-connected conditions are met. In the solar heat-supplementing module, the flow speed of the heat-conducting oil is adjusted according to whether the temperature of the airflow at the outlet of the heat-supplementing heater group reaches the set temperature or not, so that the high-temperature heat-conducting oil flows out from the upper end of the packed bed heat accumulator 44 and flows through the heat-supplementing heater to heat the high-pressure air.
In the daily cooling and dust removing stage, the specific implementation comprises the following steps: step 1, introducing high-pressure air: at noon, when the temperature of the photovoltaic cell is detected to reach or be higher than the set temperature, the cooling air flow master control valve 32 is opened, and high-pressure air is introduced into the cooling main pipeline; step 2, intermittent operation: with the photovoltaic cells in row 3 in fig. 2 as a group, the cooling airflow control valve 81 in the first row is opened, and when the photovoltaic cells are cooled, the cooling airflow control valves 82 and 83 in the second and third rows are closed; after the photovoltaic cells in the first row are cooled for a preset time, the cooling airflow control valves 81 in the first row are closed, the cooling airflow control valves 82 in the second row are opened, and the photovoltaic cells are cooled line by line.
When the solar photovoltaic cell is cleaned in the year, high-pressure water flow is introduced into the main cooling pipeline, and the stain which is difficult to remove in daily dust removal on the surface of the photovoltaic cell is removed by utilizing the strong washing effect of the water flow. In order to reduce the flow velocity of water flow in the main pipeline, the cooling air flow control valve can be opened line by line to clean the photovoltaic cells line by line.
Claims (10)
1. A photovoltaic power station energy storage matching system is characterized by comprising a compressed air energy storage module, a compressed heat recovery module, a solar energy heat supplementing module and a photovoltaic cell cooling module; the photovoltaic cell cooling module comprises a cooling spray head (61) arranged above the photovoltaic cell, and the cooling spray head (61) is communicated with cooling air or a clean water source; the compressed air energy storage module comprises an energy storage section and an energy release section, and an outlet of the energy storage section and an inlet of the energy release section are connected with an inlet of the high-pressure air storage chamber (41) through a control valve;
the energy storage section is provided with a two-stage compressor, the outlets of the compressors are provided with coolers, the energy release section is provided with a two-stage expander, and the inlets of the two-stage expander are provided with a preheating heater and a heat supplementing heater;
the compression heat recovery module comprises the cooler, a low-temperature water storage tank (42), a high-temperature water storage tank (43), the preheating heater and the heat supplementing heater;
a hot medium outlet of the cooler is communicated with a high-temperature water storage tank (43), a cold medium outlet of the cooler is communicated with a low-temperature water storage tank (42), the high-temperature water storage tank (43) is connected with the preheating heater, and a heating medium outlet of the preheating heater is communicated with the low-temperature water storage tank (42);
the working medium inlet and outlet of the solar energy heat compensation module is communicated with the heating medium inlet and outlet of the heat compensation heater.
2. The energy storage matching system of the photovoltaic power station as claimed in claim 1, wherein the two-stage compressor in the compressed air energy storage module is driven by a direct current brushless synchronous motor; the electric energy input end of the direct current brushless synchronous motor is directly connected with a direct current bus of the photovoltaic battery pack.
3. The photovoltaic power plant energy storage support system of claim 1, wherein the solar thermal module comprises a solar thermal collector (5), a heat-releasing loop inlet control valve (35), a heat-storing loop outlet control valve (36), a packed bed heat accumulator control valve (37), a heat-releasing loop outlet control valve (38), a heat-storing loop inlet control valve (39) and a packed bed heat accumulator (44), wherein a heat-storing loop and a heat-releasing loop are provided: in the heat storage loop, a solar heat collector (5), a heat storage loop outlet control valve (36), a packed bed heat accumulator (44), a packed bed heat accumulator control valve (37) and a heat storage loop inlet control valve (39) are communicated in sequence; in the heat release loop, a packed bed heat accumulator (44), a heat release loop inlet control valve (35), a heat supplementing heater group, a heat release loop outlet control valve (38) and a packed bed heat accumulator control valve (37) are communicated in sequence, and an inlet and an outlet of the packed bed heat accumulator (44) are working medium inlets and outlets of the solar heat supplementing module.
4. The photovoltaic power plant energy storage support system of claim 3, wherein the solar thermal collector is a linear Fresnel lens type solar thermal collector; the heat exchange medium in the solar energy heat supplementing module adopts heat conduction oil, and the heat conduction oil adopts alkyl diphenyl ether type synthetic heat conduction oil.
5. The energy storage matching system of the photovoltaic power station as claimed in claim 1, wherein photovoltaic cells are arranged in a matrix to form a photovoltaic cell array (6), each row of the photovoltaic cell array (6) is provided with a gas supply pipeline, each row is provided with a cooling gas flow control valve and a cooling gas flow heat exchanger, the gas supply pipeline of each row is communicated with a main pipeline, and the main pipeline is connected with an outlet of the high-pressure gas storage chamber (41); the cooling spray head (61) is arranged above the geometric center of each photovoltaic cell, and the air outlet of the cooling spray head is 0.5 cm to 3 cm away from the surface of each photovoltaic cell.
6. The energy storage matching system of the photovoltaic power station as claimed in claim 1, wherein the cooling spray head (61) comprises an air supply section (611) and a contraction acceleration section, the air supply section (611) is in a straight pipe shape, an upper end top cover is arranged at the upper end of the air supply section (611), the upper end of the air supply section (611) is in a horn-shaped opening to form a lower profile, the upper end top cover is in an arc shape and is an upper profile, the contraction acceleration section is formed by the upper end top cover and the upper end of the air supply section (611), and connecting columns are arranged between the upper end top cover and the upper end of the air supply section (611) at intervals.
7. The energy storage support system for photovoltaic power plants as claimed in claim 6, characterized in that the radius of the arc of the lower profile (612) is 1/4 to 2/3 of the radius of the duct of the gas supply section (611), the radius of the arc of the upper profile (613) is 3 to 7 times the radius of the duct of the gas supply section (611), the distance between the outlets of the upper and lower profiles is 1/20 to 1/10 of the radius of the gas supply duct, and 3 to 6 connection points exist between the upper end cover of the cooling nozzle and the upper end of the gas supply section (611).
8. The energy storage support system for photovoltaic power plants as claimed in claim 1, characterized in that the filling material in the packed bed heat accumulator (44) is cobblestones with a diameter of less than 3 cm or steel slag blocks with a diameter of less than 5 cm.
9. The method of operating a photovoltaic power plant energy storage support system as claimed in any one of claims 1 to 8, including an energy storage process and an energy release process;
an energy storage stage: a compressor in the compressed air energy storage module compresses air in stages, compressed high-pressure air enters a high-pressure air storage chamber (41), a cooler recovers heat energy generated in the compression process by using cooling water of a low-temperature water storage tank (42), and the cooling water absorbs the heat energy and then enters a high-temperature water storage tank (43);
energy release stage: the high-pressure air is preheated and heated by the preheating heater and the heat supplementing heater respectively and then enters the expansion machine to do work for power generation; the hot water in the high-temperature water storage tank (43) preheats the compressed air through the preheating heater;
the working medium of the solar heat compensation module heats the preheated air through the heat compensation heater, and the working medium flows back to the solar heat compensation module after heat exchange; the photovoltaic cell is cooled by cooling air through a cooling spray head (61) above the photovoltaic cell, clean water is introduced into the cooling spray head (61), and the photovoltaic cell is cleaned according to set time.
10. Operating method according to claim 9, characterized in that the energy storage phase: firstly, cooling water circulation is started, a direct-current brushless synchronous motor (91) is started according to the rotating speed of the direct-current brushless motor under the corresponding power by utilizing the surplus power in a direct-current bus of the photovoltaic cell, the variable working condition compressed air energy storage process is carried out, and the compressed air is stored in a high-pressure air storage chamber (41);
energy release stage: firstly, starting a preheating cycle, then adjusting the state of a corresponding valve, and in the solar heat compensation module during energy release, determining a heat compensation loop according to the environment: if the sunlight is sufficient, the outlet temperature of the solar heat collector (5) can reach the rated outlet temperature, and the heat of the heat supplementing heater is directly provided by the solar heat collector; if the outlet temperature or the outlet speed of the solar heat collector (5) does not reach a rated value, a heat gap is provided by the packed bed heat accumulator (44);
when daily cooling and dust removal are carried out, high-pressure air is introduced into the cooling spray head (61), and when the temperature of the photovoltaic cell is detected to reach or be higher than the set temperature, the daily cooling and dust removal are started;
the cooling dust removal process was run in a batch mode: taking photovoltaic cells in 2 to 4 rows as a group, opening the cooling airflow control valve in one row, and closing the cooling airflow control valves in the other rows when the photovoltaic cells are cooled; the cooling airflow control valves in each row are opened and closed in sequence;
when the photovoltaic cell cleaning device is used for cleaning regularly, high-pressure water flow is introduced into the cooling spray nozzle (61), the cooling air flow control valve is opened line by line, and stains which are difficult to remove in daily dust removal on the surface of the photovoltaic cell are removed by utilizing the powerful scouring effect of the water flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110679649.0A CN113541575B (en) | 2021-06-18 | 2021-06-18 | Photovoltaic power station energy storage matching system and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110679649.0A CN113541575B (en) | 2021-06-18 | 2021-06-18 | Photovoltaic power station energy storage matching system and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113541575A CN113541575A (en) | 2021-10-22 |
| CN113541575B true CN113541575B (en) | 2022-12-09 |
Family
ID=78125173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110679649.0A Active CN113541575B (en) | 2021-06-18 | 2021-06-18 | Photovoltaic power station energy storage matching system and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113541575B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2623936A (en) * | 2022-06-12 | 2024-05-08 | Acc Solar Ltd | Compressed air energy storage (CAES) based self-powered active cleaning and cooling system for solar photovoltaic panels |
| CN116241436B (en) * | 2023-03-17 | 2024-04-16 | 中国电力工程顾问集团中南电力设计院有限公司 | Compressed air energy storage system and method for constant-parameter operation of all-weather compressor inlet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179033A (en) * | 2015-08-12 | 2015-12-23 | 中国科学院工程热物理研究所 | System for storing electric energy by means of low-temperature cold energy and operating method of system |
| CN106499599A (en) * | 2016-11-10 | 2017-03-15 | 清华大学 | A kind of non-afterburning compressed air electricity generation system of photo-thermal combined type |
| CN107461603A (en) * | 2017-09-21 | 2017-12-12 | 西安交通大学 | The hot dry rock reheating compressed-air energy-storage system of gas storage heat accumulation one |
| JP6668551B1 (en) * | 2019-10-30 | 2020-03-18 | 株式会社土谷特殊農機具製作所 | Heat source storage system using photovoltaic power generation |
| CN111173719A (en) * | 2020-01-16 | 2020-05-19 | 东南大学 | Liquefied air energy storage system with preheating evaporator |
| CN213090160U (en) * | 2020-09-08 | 2021-04-30 | 吴小明 | Multi-energy coupling type solar heat collection, heat storage and heat exchange integrated device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2500706A (en) * | 2012-03-30 | 2013-10-02 | Ibm | Concentrating solar photovoltaic-thermal hybrid systems |
| US9903272B2 (en) * | 2013-05-07 | 2018-02-27 | Ben Enis | Method and apparatus for integrating on-shore green and other on-shore power sources with a compressed air energy storage system on a floating power plant |
| AU2014305651A1 (en) * | 2013-08-07 | 2016-02-25 | Raygen Resources Pty Ltd | Storage of solar energy |
| CN109889133A (en) * | 2019-03-27 | 2019-06-14 | 山东星火科学技术研究院 | A kind of solar energy, energy and wind energy integrative energy storage for power supply system |
-
2021
- 2021-06-18 CN CN202110679649.0A patent/CN113541575B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179033A (en) * | 2015-08-12 | 2015-12-23 | 中国科学院工程热物理研究所 | System for storing electric energy by means of low-temperature cold energy and operating method of system |
| CN106499599A (en) * | 2016-11-10 | 2017-03-15 | 清华大学 | A kind of non-afterburning compressed air electricity generation system of photo-thermal combined type |
| CN107461603A (en) * | 2017-09-21 | 2017-12-12 | 西安交通大学 | The hot dry rock reheating compressed-air energy-storage system of gas storage heat accumulation one |
| JP6668551B1 (en) * | 2019-10-30 | 2020-03-18 | 株式会社土谷特殊農機具製作所 | Heat source storage system using photovoltaic power generation |
| CN111173719A (en) * | 2020-01-16 | 2020-05-19 | 东南大学 | Liquefied air energy storage system with preheating evaporator |
| CN213090160U (en) * | 2020-09-08 | 2021-04-30 | 吴小明 | Multi-energy coupling type solar heat collection, heat storage and heat exchange integrated device |
Non-Patent Citations (2)
| Title |
|---|
| 压缩空气储能的多级填充床蓄热实验研究;刘佳等;《科学技术与工程》;20130228;第13卷(第06期);第1462-1468页 * |
| 压缩空气储能系统的工作特性研究;杨启超等;《流体机械》;20131031;第41卷(第10期);第14-18,24页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113541575A (en) | 2021-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112283068B (en) | Compressed air energy storage and supply device | |
| CN109340066B (en) | Supercritical carbon dioxide solar power generation and energy storage integrated system | |
| CN204610203U (en) | A kind of adiabatic compression air energy-storage and the integrated system of solar energy | |
| CN113541575B (en) | Photovoltaic power station energy storage matching system and operation method thereof | |
| CN114198170B (en) | Carbon dioxide energy storage system based on double heat storage loops and working method thereof | |
| CN111140298B (en) | Distributed cogeneration compressed air energy storage system | |
| CN112762424B (en) | Solar thermoelectric coupling system based on combination of heat storage and compression heat pump and operation method thereof | |
| CN201318808Y (en) | Solar energy heat utilization device featuring gas-steam combined circulation | |
| CN104847428B (en) | A kind of external-burning type Boulez with solar energy heating pauses combined cycle generating unit | |
| CN112814860A (en) | Circulating complementary cogeneration system of tower type solar photo-thermal power generation refrigerator and operation method thereof | |
| CN114704456A (en) | Multisource heat storage compressed air energy storage system for coupling electric heat storage | |
| CN113775492A (en) | CO of sharing equipment2Brayton and heat pump combined cycle system and operation method | |
| CN203809224U (en) | Solar photothermal power generation comprehensive utilizing system | |
| CN117663684A (en) | Cold and hot integrated liquid air energy storage system | |
| CN218894745U (en) | Compressed air energy storage system coupled with coal-fired power generation and solar photo-thermal | |
| CN115773215A (en) | ORC-coupled solar photo-thermal heat compensation type compressed air energy storage system and method | |
| CN214944466U (en) | Compressed air-gas double-working medium combined cycle power generation system | |
| CN114382560A (en) | Combined heat and power generation system with photovoltaic power generation and compressed air energy storage coupling | |
| CN115031322B (en) | Multifunctional energy storage system and air conditioner for solar spectrum frequency division and cascade utilization | |
| CN2374819Y (en) | Systematization three-in-one energy saving appts. | |
| CN114738069B (en) | Energy storage power generation system and energy storage power generation method | |
| CN220206094U (en) | System using solar heat collection as heat source of compressed air energy storage power station | |
| CN218542513U (en) | Geothermal energy and wind energy combined cold and power cogeneration system | |
| CN214998050U (en) | Low-temperature solar photo-thermal power generation system | |
| CN113824139B (en) | Thermal power plant Carnot battery energy storage transformation method and 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |