CN208874297U - A kind of photovoltaic power generation and compressed-air energy storage hybrid integrated system - Google Patents
A kind of photovoltaic power generation and compressed-air energy storage hybrid integrated system Download PDFInfo
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- CN208874297U CN208874297U CN201821361238.7U CN201821361238U CN208874297U CN 208874297 U CN208874297 U CN 208874297U CN 201821361238 U CN201821361238 U CN 201821361238U CN 208874297 U CN208874297 U CN 208874297U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 74
- 238000010248 power generation Methods 0.000 title claims abstract description 43
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 230000005855 radiation Effects 0.000 claims description 45
- 238000005286 illumination Methods 0.000 claims description 25
- 238000007906 compression Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 206010044565 Tremor Diseases 0.000 claims description 2
- 239000013589 supplement Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000011217 control strategy Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model discloses a kind of photovoltaic power generations and compressed-air energy storage hybrid integrated system, including photovoltaic generating system, compressed-air energy-storage system and control unit.The electric energy of solar energy power generating is directly changed into the pressure energy in compressed-air energy-storage system by the utility model, saved photovoltaic DC electricity to alternating current conversion process loss and conversion equipment investment, reduce the impact that photovoltaic electric energy is surfed the Internet to power grid, the online space of the renewable energy such as more wind energies and other forms solar energy can also be accommodated.Meanwhile increased energy storage device can play the role of peak load shifting to network system in peak times of power consumption to customer power supply.
Description
Technical field
The utility model category Solar use, energy storage, field of energy-saving technology, are related to a kind of photovoltaic power generation and compression is empty
The electric energy of solar energy power generating can be directly changed into compressed-air energy-storage system by gas energy storage hybrid integrated system, the system
Pressure energy, saved photovoltaic DC electricity to alternating current conversion process loss and conversion equipment investment, reduce light
The impact that electric energy is surfed the Internet to power grid is lied prostrate, the online of the renewable energy such as more wind energies and other forms solar energy can also be accommodated
Space.Meanwhile increased energy storage device can play the work of peak load shifting to network system in peak times of power consumption to customer power supply
With.
Background technique
Solar photovoltaic technology has developed into a mature technology now, can generate electricity by way of merging two or more grid systems.However photovoltaic
The electric energy of sending is direct current, needs DC-AC conversion equipment if direct online, needs again to throw electricity generation system
Money, and DC-AC conversion equipment has about 2% energy loss.Solar power generation enters power grid also can be to electric system
Regulation cause certain difficulty.Compressed-air energy storage can be realized large capacity and the storage of long-time electric energy, realize peak clipping to power grid
Valley-fill effect, and it can use dc generator, the electricity directly issued using solar energy photovoltaic panel.However photovoltaic power generation plate
By the characteristic limitation of own power, compressed-air energy storage is also limited by operating condition range for power generation.If can adopt
It takes suitable control strategy that the electric energy that photovoltaic issues is stored in compressed-air energy-storage system, then can play increasing simultaneously
Add the effect of solar energy generating efficiency and electric energy peak load shifting.
Utility model content
For the disadvantages mentioned above and deficiency of the prior art, the utility model is intended to provide a kind of photovoltaic power generation and compressed air
The electric energy of solar energy power generating can be directly changed into compressed-air energy-storage system by energy storage hybrid integrated system, the system
Pressure energy, saved photovoltaic DC electricity to alternating current conversion process loss and conversion equipment investment, reduce photovoltaic
The impact that electric energy is surfed the Internet to power grid, the online that can also accommodate the renewable energy such as more wind energies and other forms solar energy are empty
Between.Meanwhile increased energy storage device can play the work of peak load shifting to network system in peak times of power consumption to customer power supply
With.
The technical solution that the utility model is taken by realization its technical purpose are as follows:
A kind of photovoltaic power generation and compressed-air energy storage hybrid integrated system, including photovoltaic generating system, compressed-air energy storage
System and control unit, it is characterised in that:
-- the photovoltaic generating system, including at least one set of photovoltaic power generation plate;
-- the compressed-air energy-storage system, including at least three groups of compressed-air energy storage units, an at least expanding machine and extremely
A few generator, the expanding machine are drivingly connected the generator, and the generator compresses described in every group to power to power grid
Air energy-storage units include a compressor, an air accumulator, wherein
The air inlet of the compressor is communicated with the atmosphere, and exhaust outlet is connected to by pipeline with the air inlet of the air accumulator,
The gas outlet of the air accumulator is connected to the air inlet of the expanding machine, and the exhaust outlet of the expanding machine is communicated with the atmosphere, and institute
It states and is provided with valve at the air inlet and air outlet of air accumulator;
Compressor in each compressed-air energy storage unit includes a photovoltaic power supply route and a power grid supply lines
The feeder ear on road, the photovoltaic power supply route is connect with the photovoltaic power generation plate, the feeder ear and electricity of the power grid power supply line
Net connection, and breaker is equipped in the photovoltaic power supply route and power grid power supply line;
-- the control system, including intensity of illumination detector and power control module, the intensity of illumination detector and
Each breaker is communicated to connect with the power control module, and the intensity of illumination detector is to detect solar radiation
The intensity of solar radiation information detected is simultaneously fed back to the power control module by intensity, and the power control module is according to too
Positive radiation intensity and the on-off for controlling each breaker.
Preferably, when the intensity of solar radiation that the intensity of illumination detector detects is in extremely low radiation intensity section
When, the power control module disconnects the breaker on all photovoltaic power supply routes;When the intensity of illumination detector detects
Intensity of solar radiation when being in Low emissivity intensity interval, the power control module is connected to any group of compressed-air energy storage
Breaker in unit on the photovoltaic power supply route of compressor, and open air accumulator air inlet in this group of compressed-air energy storage unit
The valve at place, closes the valve at gas outlet, remaining each group compressed-air energy storage unit does not work;When the intensity of illumination detects
When the intensity of solar radiation that device detects is in middle radiation intensity section, the power control module is connected to wherein wantonly two groups of compressions
Breaker in air energy-storage units on the photovoltaic power supply route of compressor, and open and stored up in two groups of compressed-air energy storage units
Valve at gas tank air inlet, closes the valve at gas outlet, remaining each group compressed-air energy storage unit does not work;When the light
When being in high radiance section according to the intensity of solar radiation that intensity detector detects, the power control module connection is all
Breaker on photovoltaic power supply route, and the valve in each group compressed-air energy storage unit at air accumulator air inlet is opened, it closes
Valve at gas outlet, each group compressed-air energy storage unit work.
Preferably, in peak times of power consumption, the valve at each air accumulator gas outlet is opened, the valve at its air inlet is closed
, the compressed air in the air accumulator enters in the expanding machine, and the expanding machine drives the generator acting power generation, sends out
Electric energy out enters in power grid.
Preferably, each compressor is by a DC motor drive, and each dc motor is with one
The photovoltaic power supply route and a power grid power supply line connection.The dc motor power supply is mainly supplied by photovoltaic power generation
It gives, is supplemented when photovoltaic power generation shakiness by power grid.
Preferably, the capacity of each air accumulator is identical or different.
Compared with the existing technology, the photovoltaic power generation of the utility model and the advantages of compressed-air energy storage hybrid integrated system and
It has the beneficial effect that the loss for the conversion process for 1. having saved photovoltaic DC electricity to alternating current and the investment of conversion equipment, 2. subtracts
Lack the impact that photovoltaic electric energy is surfed the Internet to power grid, 3. can also accommodate the renewable energies such as more wind energies and other forms solar energy
The online space in source.4. meanwhile increased energy storage device can be played to network system and be cut in peak times of power consumption to customer power supply
The effect of peak load.
Detailed description of the invention
Fig. 1 is the photovoltaic power generation and compressed-air energy storage hybrid integrated system schematic diagram of the utility model;
Fig. 2 is system running policy schematic diagram, wherein (a) is that one, two or three compressed air is arranged in system
Power versus time curve schematic diagram when energy-storage system;(b) maximum for the curve of output of photovoltaic generating system
Close to solar radiation variations curve synoptic diagram.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, develop simultaneously implementation referring to the drawings
The utility model is further described in example.It should be appreciated that specific embodiment described herein is only used to explain this reality
With novel, it is not used to limit the utility model.In addition, involved in the various embodiments of the present invention described below
To technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in Figure 1, the photovoltaic power generation of the utility model and compressed-air energy storage hybrid integrated system, including photovoltaic power generation
System, compressed-air energy-storage system and control unit.Wherein, the photovoltaic generating system includes at least one set of photovoltaic power generation plate 1.
The compressed-air energy-storage system includes at least three groups of compressed-air energy storage units, at least an expanding machine 21 and an at least generator
22, the expanding machine 21 is drivingly connected the generator 22, and the generator 22 compresses empty to power to power grid, described in every group
Gas energy storage unit includes a compressor 9,10,11, an air accumulator 15,16,17, the air inlet of the compressor 9,10,11 and big
Gas connection, exhaust outlet are connected to by pipeline with the air inlet of the air accumulator 15,16,17, and the air accumulator 15,16,17 goes out
Port is connected to the air inlet of the expanding machine 21, and the exhaust outlet of the expanding machine 21 is communicated with the atmosphere, and the air accumulator 15,
16, it is provided with valve 12,13,14 at 17 air inlet, valve 18,19,20 is provided at gas outlet.Described control unit 2 is wrapped
Include intensity of illumination detector 31 and power control module 32, the intensity of illumination detector 31 and 32 communication link of power control module
It connects, the intensity of illumination detector 31 is to detect intensity of solar radiation and feed back to the intensity of solar radiation information detected
The power control module 32.
Compressor 9,10,11 in each compressed-air energy storage unit includes a photovoltaic power supply route and a power grid
Power supply line, the feeder ear of the photovoltaic power supply route are connect with the photovoltaic power generation plate 1, the power supply of the power grid power supply line
End is connect with power grid, and breaker 3~8 is equipped in the photovoltaic power supply route and power grid power supply line, each open circuit
Device 3~8 is communicated to connect with the power control module 32, the power control module 32 to according to intensity of solar radiation and
Control the on-off of each breaker 3~8.
Due under different intensities of solar radiation, the generating capacity of photovoltaic power generation plate is different, intensity of solar radiation compared with
When low, the generating capacity of photovoltaic power generation plate is lower, and when intensity of solar radiation is stronger, the generating capacity of photovoltaic power generation plate is also therewith
It is relatively strong.Intensity of solar radiation is divided at least four sections in view of above-mentioned factor, respectively extremely low radiation intensity section,
Low emissivity intensity interval, middle radiation intensity section, high radiance section, when intensity of solar radiation is in extremely low radiation intensity area
Between when, the generating capacity of photovoltaic power generation plate is not enough to drive the compressor of one group of compressed-air energy storage unit;When solar radiation is strong
When degree is in Low emissivity intensity interval, the generating capacity of photovoltaic power generation plate can drive the compression of one group of compressed-air energy storage unit
Machine, but it is not enough to drive the compressor of two groups of compressed-air energy storage units;When intensity of solar radiation is in middle radiation intensity section
When, the generating capacity of photovoltaic power generation plate can drive the compressor of two groups of compressed-air energy storage units, but be not enough to drive three groups of pressures
The compressor of contracting air energy-storage units;When intensity of solar radiation is in high radiance section, the power generation energy of photovoltaic power generation plate
Power can drive the compressor of at least three groups compressed-air energy storage units.
It is described when the intensity of solar radiation that the intensity of illumination detector 31 detects is in extremely low radiation intensity section
Power control module 32 disconnects the breaker 3~5 on all photovoltaic power supply routes;When the intensity of illumination detector 31 detects
Intensity of solar radiation when being in Low emissivity intensity interval, the power control module 32 is connected to any group of compressed air storage
Breaker 3~5 in energy unit on the photovoltaic power supply route of compressor, and open air accumulator in this group of compressed-air energy storage unit
Valve at air inlet, closes the valve at gas outlet, remaining each group compressed-air energy storage unit does not work;When the illumination is strong
When the intensity of solar radiation that degree detector 31 detects is in middle radiation intensity section, the connection of power control module 32 is wherein
Breaker 3~5 in wantonly two groups of compressed-air energy storage units on the photovoltaic power supply route of compressor, and it is empty to open two groups of compressions
Valve in gas energy storage unit at air accumulator air inlet closes the valve at gas outlet, remaining each group compressed-air energy storage unit
It does not work;When the intensity of solar radiation that the intensity of illumination detector 31 detects is in high radiance section, the confession
Electric control module 32 is connected to the breaker 3~5 on all photovoltaic power supply routes, and opens and store up in each group compressed-air energy storage unit
Valve at gas tank air inlet, closes the valve at gas outlet, and each group compressed-air energy storage unit works.
The photovoltaic power generation and compressed-air energy storage hybrid integrated system of the utility model, its working principle is that:
When having sunshine daytime, photovoltaic generating system work.Intensity of illumination detector 31 detect intensity of solar radiation compared with
Hour, breaker 3 is connected to.Valve 12 is opened, and valve 18 is closed, and the power generation of photovoltaic generating system only supplies compressor 9 at this time.
Compressor 9 compresses air, into storing in air accumulator 15.When intensity of illumination detector 31 detects intensity of solar radiation
When medium, breaker 3 and breaker 4 are all closed, and valve 12 and valve 13 are opened, and valve 18 and valve 19 are closed, 9 He of compressor
Compressor 10 compresses air, and the air after compressing respectively enters to be stored in air accumulator 15 and air accumulator 16.Work as illumination
When intensity detector 31 detects that intensity of solar radiation is stronger, breaker 2, breaker 3 and breaker 4 are all closed, valve 12, valve
Door 13 and valve 14 are opened, and valve 18, valve 19 and valve 20 are closed, and compressor 9, compressor 10 and compressor 11 are by air pressure
Contracting, the air after compressing respectively enters to be stored in air accumulator 15, air accumulator 16 and air accumulator 17.
When intensity of illumination detector 31 detects that the variation (such as cloud cover) due to weather leads to solar radiation quantity
When the fluctuation of short time, control system will control breaker 6, breaker 7 and breaker 8, make its in time turn off or
Closure, so that the power change of supplement in short-term, reaches the compressor input electric power before and after the variation of weather and remain unchanged.
It is carved nearby when at candlelight, when intensity of illumination detector 31 detects amount of radiation less than a certain value, photovoltaic power generation system
System stops working, and control system disconnects breaker 3, breaker 4, breaker 5, breaker 6, breaker 7, breaker 8.Valve
12, valve 13 and valve 14 are closed.
Peak times of power consumption at night, valve 18, valve 19 and valve 20 are opened, air accumulator 15, air accumulator 16 and gas storage
Gas in tank 17 enters in expanding machine 21, and expanding machine 21 drives the acting power generation of generator 22, and the electric energy of sending enters power grid
In.
The photovoltaic power generation and compressed-air energy storage hybrid integrated system of the utility model, control strategy are as shown in Figure 2.Control
System processed can calculate power when one, two or three compressed-air energy-storage systems being arranged in hypothesis system at any time automatically
Between change curve, such as curve 1, curve 2 and the curve 3 in Fig. 2 (a).Then control system can be logical in the point of intersection of curve
The output power that control breaker 3, breaker 4 or breaker 5 carry out control system is crossed, keeps the output work of system maximum.Specifically
Embodiment are as follows: before a point, breaker 3 is closed, and breaker 4 and breaker 5 disconnect;The close circuit breaker 4 in a point;In b
Close circuit breaker 5 when point;The cut-off breaker 5 in c point;The cut-off breaker 4 in d point.Control strategy in this way can be with
So that the curve of output of photovoltaic system is to greatest extent close to solar radiation variations curve, such as Fig. 2 (b).
Through the foregoing embodiment, the purpose of this utility model is completely effectively realized.Person skilled in art can be with
Understand that the utility model includes but is not limited to content described in attached drawing and the above specific embodiment.Although the utility model is just
It is now recognized that the most practical and preferred embodiment is illustrated, it should be understood that the utility model is not limited to disclosed reality
Example is applied, the modification of any function and structure principle without departing from the utility model is intended to be included in the range of claims.
Claims (5)
1. a kind of photovoltaic power generation and compressed-air energy storage hybrid integrated system, including photovoltaic generating system, compressed-air energy storage system
System and control unit, it is characterised in that:
-- the photovoltaic generating system, including at least one set of photovoltaic power generation plate;
-- the compressed-air energy-storage system, including at least three groups of compressed-air energy storage units, an at least expanding machine and at least one
Generator, the expanding machine are drivingly connected the generator, and the generator to power grid to power, compressed air described in every group
Energy-storage units include a compressor, an air accumulator, wherein
The air inlet of the compressor is communicated with the atmosphere, and exhaust outlet is connected to by pipeline with the air inlet of the air accumulator, described
The gas outlet of air accumulator is connected to the air inlet of the expanding machine, and the exhaust outlet of the expanding machine is communicated with the atmosphere, and the storage
Valve is provided at the air inlet and air outlet of gas tank;
Compressor in each compressed-air energy storage unit includes a photovoltaic power supply route and a power grid power supply line, institute
The feeder ear for stating photovoltaic power supply route is connect with the photovoltaic power generation plate, and the feeder ear and power grid of the power grid power supply line connect
It connects, and is equipped with breaker in the photovoltaic power supply route and power grid power supply line;
-- described control unit, including intensity of illumination detector and power control module, the intensity of illumination detector and each
The breaker is communicated to connect with the power control module, and the intensity of illumination detector is to detect intensity of solar radiation
And the intensity of solar radiation information detected is fed back into the power control module, the power control module is according to sun spoke
It penetrates intensity and controls the on-off of each breaker.
2. photovoltaic power generation according to claim 1 and compressed-air energy storage hybrid integrated system, which is characterized in that when described
When the intensity of solar radiation that intensity of illumination detector detects is in extremely low radiation intensity section, the power control module is disconnected
Breaker on all photovoltaic power supply routes;When the intensity of solar radiation that the intensity of illumination detector detects is in Low emissivity
When intensity interval, the power control module is connected to the photovoltaic power supply line of compressor in any group of compressed-air energy storage unit
The breaker of road, and the valve in this group of compressed-air energy storage unit at air accumulator air inlet is opened, it closes at gas outlet
Valve, remaining each group compressed-air energy storage unit do not work;When the intensity of solar radiation that the intensity of illumination detector detects
When in middle radiation intensity section, the power control module is connected to compressor in wherein wantonly two groups of compressed-air energy storage units
Breaker on photovoltaic power supply route, and the valve in two groups of compressed-air energy storage units at air accumulator air inlet is opened, it closes
The valve at gas outlet is closed, remaining each group compressed-air energy storage unit does not work;It is detected when the intensity of illumination detector
When intensity of solar radiation is in high radiance section, the power control module is connected to the open circuit on all photovoltaic power supply routes
Device, and the valve in each group compressed-air energy storage unit at air accumulator air inlet is opened, close the valve at gas outlet, each group pressure
Contracting air energy-storage units work.
3. photovoltaic power generation according to claim 1 and compressed-air energy storage hybrid integrated system, which is characterized in that in electricity consumption
Peak period opens the valve at each air accumulator gas outlet, closes the valve at its air inlet, the compression in the air accumulator
Air enters in the expanding machine, and the expanding machine drives the generator acting power generation, and the electric energy of sending enters in power grid.
4. photovoltaic power generation according to claim 1 and compressed-air energy storage hybrid integrated system, which is characterized in that Mei Yisuo
Compressor is stated by a DC motor drive, and each dc motor with a photovoltaic power supply route and an institute
The connection of power grid power supply line is stated, the dc motor power supply is mainly supplied by photovoltaic power generation, as photovoltaic power generation shakiness Shi You electricity
Net supplement.
5. photovoltaic power generation according to claim 1 and compressed-air energy storage hybrid integrated system, which is characterized in that each described
The capacity of air accumulator is identical or different.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112031885A (en) * | 2020-08-31 | 2020-12-04 | 西安热工研究院有限公司 | Photovoltaic power generation and rock energy storage integrated system and method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112031885A (en) * | 2020-08-31 | 2020-12-04 | 西安热工研究院有限公司 | Photovoltaic power generation and rock energy storage integrated system and method |
CN112031885B (en) * | 2020-08-31 | 2022-08-02 | 西安热工研究院有限公司 | Photovoltaic power generation and rock energy storage integrated system and method |
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Effective date of registration: 20231030 Address after: No. 603, Floor 6, Building 2, Yard 2, Yongjie South Road, Haidian District, Beijing 100094 Patentee after: Huake Super Energy (Beijing) Energy Technology Co.,Ltd. Address before: 100185 No. 301-63, No. 3, Building A 1, Eastern District of Qinghe Jiayuan, Haidian District, Beijing Patentee before: ZHONGCHU GUONENG (BEIJING) TECHNOLOGY Co.,Ltd. |