CN113224799A - Full-renewable energy continuous and stable power generation method - Google Patents
Full-renewable energy continuous and stable power generation method Download PDFInfo
- Publication number
- CN113224799A CN113224799A CN202110471357.8A CN202110471357A CN113224799A CN 113224799 A CN113224799 A CN 113224799A CN 202110471357 A CN202110471357 A CN 202110471357A CN 113224799 A CN113224799 A CN 113224799A
- Authority
- CN
- China
- Prior art keywords
- power generation
- heat
- power
- heat storage
- renewable energy
- 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.)
- Granted
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005338 heat storage Methods 0.000 claims description 47
- 238000011084 recovery Methods 0.000 claims description 29
- 230000005611 electricity Effects 0.000 claims description 26
- 238000005485 electric heating Methods 0.000 claims description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 238000004146 energy storage Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 2
- 239000002803 fossil fuel Substances 0.000 abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 8
- 239000002028 Biomass Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
-
- 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
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind 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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention belongs to the field of renewable energy and multi-energy complementation, and particularly relates to a continuous and stable power generation method of full renewable energy. The scheme has no new carbon emission, can meet the stability requirement of the minimum guaranteed electric quantity of a power grid, and is a power generation solution capable of replacing a fossil fuel power station as a guaranteed power supply.
Description
Technical Field
The invention belongs to the field of renewable energy and multi-energy complementation, and particularly relates to a full renewable energy continuous and stable power generation method.
Background
At present, the power generation type is mainly fossil fuel power generation type, a large amount of carbon dioxide needs to be discharged in the power generation process, renewable energy sources are represented by photovoltaic power generation and wind power generation, the installed scale of the power generation type is continuously enlarged, but due to resource uncertainty, the power generation system does not have the capacity of serving as a power grid for guaranteeing a power supply, so that at the present stage, a fossil fuel power plant is still the main power for guaranteeing the power supply, along with the improvement of the installed capacity demand of a power grid system, the carbon emission of the power system is in an ascending trend, and a single renewable energy source system such as photovoltaic power generation and wind power generation cannot replace thermal power to become a guaranteed stable power supply all the time.
The photothermal power station is a renewable energy power generation system with a heat storage system and long-time power generation capacity, has certain capacity of replacing a fossil fuel power station, but is influenced by solar energy resources, the annual utilization hours of the conventional photothermal power station is about 4000h, the requirement of a power grid system on the reliability of the conventional photothermal power station cannot be met, and the conventional photothermal power station still cannot completely replace the fossil fuel power station as a guarantee power supply of a power grid.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for generating power by using full renewable energy sources continuously and stably.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for continuously and stably generating power by using full renewable energy sources comprises the following steps:
installing the photo-thermal power station according to the minimum guaranteed installed capacity requirement of the power grid on the power station;
under the condition that the resource condition is good and the power grid requirement is met, the power generation is carried out independently, and energy is stored in the photo-thermal heat storage system in advance for the time period with poor resource condition through the electric heating recovery system;
under the condition of poor resource conditions, the heat stored in the heat storage system is utilized to generate electricity.
As a further improvement of the invention, the following operation modes are specifically included:
independent power generation mode: under the condition that a power grid system channel is sufficient and the future resource condition is still good, multiple energy types independently generate power and respectively operate according to the maximum output;
independent power generation, the light and heat lets the way operation mode: under the condition that a power grid system channel is limited and the future resource condition is still good, multiple energy types independently generate electricity, under the condition that the heat storage system has allowance, the photo-thermal power station gives way to other power generation modes, absorbed solar heat is temporarily stored in the heat storage system, and electricity is generated when the channel has allowance;
electric heating heat recovery mode: under the poor condition of future resource condition prediction, multiple energy types independently generate electricity, except for light and heat, other electricity generation types convert electric quantity into heat through the electrical heating recovery system and store in the light and heat power station heat storage system, preferentially guarantee the future output of light and heat unit, other electricity generation types generate electricity on the basis of having surplus.
As a further improvement of the invention, the installation of the solar-thermal power station comprises at least a solar-thermal power generation system, an electrical heating recovery system and one or more of the following power generation types:
the system comprises a photovoltaic power generation system, a wind power generation system, a battery energy storage system and a pumped storage power generation system.
As a further improvement of the invention, the photo-thermal power generation system at least comprises a light and heat collecting system, a heat storage system and a power generation unit.
As a further improvement of the invention, the configuration of the photo-thermal power generation system is consistent with the minimum guaranteed output requirement of the power grid, the capacity configuration of the photovoltaic power generation system and the wind power generation system is determined according to optimization calculation, when the light resource or the wind resource is better, the system is integrally scheduled, the resource characteristics of a period of time in the future are predicted, the electric quantity of photovoltaic or wind power is recovered and converted into heat in advance through the electric heating recovery system and stored in the heat storage system, when the light resource and the wind resource are poorer, the heat is released through the heat storage system, and the minimum load requirement of the power grid is guaranteed through the power generation unit; the capacity ratio of the photo-thermal power generation system, the electric heating recovery system and other energy types is determined by optimizing ratio selection according to the minimum stability requirement of a power grid on the system.
As a further improvement of the invention, the electric heating recovery system adopts a molten salt electric heater, a solid heat storage system electric heater and a hot water storage tank electric heater.
As a further improvement of the invention, the photovoltaic power generation system comprises a conventional photovoltaic and a high power focusing photovoltaic, and the high power focusing photovoltaic can be coupled with a heat collection system of the photo-thermal power generation system.
As a further improvement of the invention, the light-gathering and heat-collecting system adopts one or a combination of more of a tower type solar thermal power generation mirror field and a heat absorber, a trough type heat collector, a linear Fresnel heat collection field and a disc type heat collector.
As a further improvement of the invention, the heat storage system adopts one or a centralized combination of sensible heat storage, latent heat storage and solid heat storage.
As a further improvement of the invention, the power generation unit adopts a steam turbine generator unit, a gas turbine unit or a supercritical carbon dioxide turbine power generation system.
Compared with the prior art, the invention has the following advantages:
the method for generating power continuously and stably by using fully renewable energy adopts the fully renewable energy as a component of a power generation system, the installation of a photo-thermal power station is designed according to the minimum guaranteed installed capacity requirement of a power grid on the power station, the photo-thermal power station can generate power independently under the condition that resource conditions are good and the requirement of the power grid is met, energy is stored in a photo-thermal heat storage system in advance for a time period with poor resource conditions by an electric heating recovery system, and under the condition that the resource conditions are poor, the heat stored in the heat storage system can be used for generating power, so that the stable processing of the system is ensured, and the minimum guaranteed electric quantity requirement of the power grid system is met. The scheme has no new carbon emission, can meet the stability requirement of the minimum guaranteed electric quantity of a power grid, and is a power generation solution capable of replacing a fossil fuel power station as a guaranteed power supply.
Drawings
Fig. 1 shows the operation conditions and operation modes of a full renewable energy continuous stable power generation method.
FIG. 2 is a specific implementation method of the installation system containing both photovoltaic and wind power.
Fig. 3 shows an embodiment of a photovoltaic installation.
FIG. 4 is a graph illustrating power generation reliability analysis of an embodiment.
Reference numbers in the figures: 1. a photo-thermal power generation system; 2. an electrical heating recovery system; 3. a photovoltaic power generation system; 4. a wind power generation system; 5. a battery energy storage system; 6. a pumped-storage power generation system; 7. the solar energy heat collecting and heat accumulating solar energy power generation system comprises a light gathering and heat collecting system 8, a heat storage system 9 and a power generation unit.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The invention discloses a continuous and stable power generation method by using full renewable energy, and relates to a high-reliability power supply solution for a full renewable energy power generation system.
According to the scheme, power generation types with carbon dioxide emission such as a coal-fired unit, a gas-fired unit, biomass and garbage power generation are not introduced, a power generation system is formed by renewable energy sources such as photovoltaic, wind power, photo-thermal and energy storage, and the like, and the configuration method of the solution can realize the power generation reliability of more than 90% and has extremely high carbon neutralization capacity.
The scheme at least comprises a photo-thermal power generation system 1, an electric heating recovery system 2 and one or more of the following power generation types: the system comprises a photovoltaic power generation system 3, a wind power generation system 4, a battery energy storage system 5 and a pumped storage power generation system 6.
The photo-thermal power generation system 1 at least comprises a light-gathering and heat-collecting system 7, a heat storage system 8 and a power generation unit 9.
The configuration of the photo-thermal power generation system 1 is consistent with the minimum guaranteed output requirement of a power grid, the capacity configuration of the photovoltaic power generation system 3 and the capacity configuration of the wind power generation system 4 are determined according to optimization calculation, when light resources or wind resources are good, the system is integrally scheduled, resource characteristics of a period of time in the future are predicted, electric quantity of photovoltaic or wind power is recycled and converted into heat in advance through the electric heating recycling system 2 and stored in the heat storage system 8, when the light resources and the wind resources are poor, the heat is released through the heat storage system 8, and power is generated through the power generation unit 9 to guarantee the minimum load requirement of the power grid. The capacity ratio of the photo-thermal power generation system 1, the electric heating recovery system 2 and other energy types is determined by optimizing, comparing and selecting according to the minimum stability requirement of a power grid on the system.
Preferably, the electric heating recovery system 2 can adopt a molten salt electric heater, a solid heat storage system electric heater and a hot water storage tank electric heater.
Preferably, the photovoltaic power generation system 3 includes a conventional photovoltaic and a high power focused photovoltaic, which can be coupled to the heat collection system 7 of the photothermal power generation system.
Preferably, the light-gathering and heat-collecting system 7 can adopt one or a combination of a tower type solar thermal power generation mirror field and a heat absorber, a trough type heat collector, a linear Fresnel heat collection field and a disc type heat collector.
Preferably, the heat storage system 8 may employ one or a concentrated combination of sensible heat storage, latent heat storage, and solid heat storage.
Preferably, the power generation unit 9 may be a turbo generator set, a gas turbine set, or a supercritical carbon dioxide turbine power generation system.
This scheme adopts the component part of full renewable energy as power generation system, and the installation of light and heat power station is according to the minimum guarantee installed capacity requirement design of electric wire netting to this power station, can independently generate electricity respectively under the good condition that satisfies the electric wire netting demand of resource condition, and be the time quantum that resource condition is not good through electrical heating recovery system at the heat-retaining system stored energy of light and heat in advance, under the not good condition of resource condition, the heat electricity generation of usable heat-retaining system storage, guarantee system stable processing, satisfy electric wire netting system's minimum guarantee electric quantity requirement. The scheme has no new carbon emission, can meet the stability requirement of the minimum guaranteed electric quantity of a power grid, and is a power generation solution capable of replacing a fossil fuel power station as a guaranteed power supply. The solution has the following modes of operation:
1. independent power generation mode: under the condition that the channel of the power grid system is sufficient and the future resource condition is still good, multiple energy types independently generate power and respectively operate according to the maximum output.
2. Independent power generation, the light and heat lets the way operation mode: under the condition that a power grid system channel is limited, under the condition that the future resource condition is still good, multiple energy types independently generate electricity, under the condition that the heat storage system has allowance, the photo-thermal power station gives way to other power generation modes, absorbed solar heat is temporarily stored in the heat storage system, and electricity is generated when the channel has allowance.
3. Electric heating heat recovery mode: under the relatively poor condition of future resource condition prediction, multiple energy types independently generate electricity, except for light and heat, other generation types convert the electric quantity into heat through the electrical heating recovery system and store in light and heat power station heat-retaining system, preferentially guarantee the future output of light and heat unit, guarantee the guarantee electric quantity requirement, other generation types generate electricity on the basis that there is surplus.
Example 1:
embodiments of the present invention will be described in further detail with reference to fig. 2 and examples.
As shown in fig. 1 to 2, the method for generating power continuously and stably by using full renewable energy according to the present invention includes:
the solar-thermal power generation system comprises a photo-thermal power generation system 1, an electric heating recovery system 2, a photovoltaic power generation system 3, a battery energy storage system 5, a light-gathering and heat-collecting system 7, a heat storage system 8 and a power generation unit 9.
The system operation mode is as follows:
the photovoltaic and photothermal resource conditions in the period A are better, and the photovoltaic resource in the period B is not good: the photo-thermal and photovoltaic independently operate to generate electricity respectively, the photo-thermal self stores heat, and electricity is generated in the period B.
The good light and heat resource of C period photovoltaic resource situation is relatively poor, and the electric wire netting passageway is less, and light and heat gives the photovoltaic and lets the way, and the light and heat power station uses as the peak regulation power, surpasss the electric quantity storage of passageway demand in battery energy storage system.
The better light and heat resource of C time interval photovoltaic resource is relatively poor, and D time interval photovoltaic resource is relatively poor, and C time interval adopts electrical heating recovery system to convert photovoltaic generated energy into heat, passes through light and heat unit electricity generation at D time interval.
The photothermal photovoltaic resources in the period E are better, the power grid channel is sufficient, the photothermal and photovoltaic resources in the period F are poorer, the photovoltaic power generation amount in the period E is sacrificed, the photovoltaic power generation amount is recovered by the electric heating recovery system and stored in the photothermal heat storage system, and the photovoltaic power generation amount is released in the period F.
Through the operation modes, the minimum guaranteed output requirement of the power grid system on the power station can be guaranteed in the A-F time period. The reliable requirement for guaranteeing the power supply is realized through the fully renewable energy sources.
Fig. 4 shows the cumulative frequency distribution of the system power supply reliability corresponding to different configurations of photo-thermal, photovoltaic, electrical heating recovery systems, battery energy storage systems, and heat storage capacities. The solar-thermal power generation system comprises a solar-thermal power generation machine and a photovoltaic power generation machine, wherein the solar-thermal power generation machine is 50MW, the photovoltaic power generation machine is 200MW, the battery energy storage system is installed for 2h, the electric heating recovery system capacity is 150MW, the heat storage time is 17h, the number of continuous operation days of the system is 311 days, the continuous output reliability is close to 85%, the annual power generation hours are 8581h, and the power generation reliability is close to 98%.
Example 2:
the following describes an embodiment of the present invention in further detail with reference to fig. 3 and examples.
As shown in fig. 3, the method for generating power continuously and stably by using full renewable energy according to the present invention includes:
the solar-thermal power generation system comprises a photo-thermal power generation system 1, an electric heating recovery system 2, a photovoltaic power generation system 3 and a wind power generation system 4, and comprises a light-gathering and heat-collecting system 7, a heat storage system 8 and a power generation unit 9.
The solar thermal power generation system comprises a solar thermal power generation machine 50MW, a photovoltaic power generation machine 200MW, a wind power generation machine 200MW, an electric heating recovery system capacity 200MW, heat storage time is long 22h, power generation hours of the system all the year are 8714h, the maximum continuous power failure time is 8h, forced power failure occurs in 12 days all the year, the power failure time is 6h, 8h, 4h, 1h, 2h, 8h, 4h, 2h, 5h, 3h, 1h and 2h, and the power generation reliability is close to 99.5%. When the heat storage time is 26h, forced power failure occurs for 6 days all the year, and the total power failure time is respectively as follows: 1h, 4h, 1h, 2h, 3h and 1h, and the power generation reliability is close to 99.8%.
Example 3:
on embodiment 2's basis, further increase 4h electricity energy storage system, at light and heat installation 50MW, photovoltaic installation 200MW, wind-powered electricity generation installation 200MW, electric heating recovery system capacity 200MW, under the long 26h circumstances of heat-retaining duration, can realize that 0h non-trouble stops working all the year round, the guarantee that the stability provides within 50MW according to the scheduling curve is exerted oneself, provides a full renewable energy and lasts stable power generation system solution.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention.
Claims (10)
1. A method for continuously and stably generating power by using full renewable energy is characterized by comprising the following steps:
installing the photo-thermal power station according to the minimum guaranteed installed capacity requirement of the power grid on the power station;
under the condition that the resource condition is good and the power grid requirement is met, the power generation is carried out independently, and energy is stored in the photo-thermal heat storage system in advance for the time period with poor resource condition through the electric heating recovery system;
under the condition of poor resource conditions, the heat stored in the heat storage system is utilized to generate electricity.
2. The method for continuously and stably generating power from full renewable energy according to claim 1, specifically comprising the following operation modes:
independent power generation mode: under the condition that a power grid system channel is sufficient and the future resource condition is still good, multiple energy types independently generate power and respectively operate according to the maximum output;
independent power generation, the light and heat lets the way operation mode: under the condition that a power grid system channel is limited and the future resource condition is still good, multiple energy types independently generate electricity, under the condition that the heat storage system has allowance, the photo-thermal power station gives way to other power generation modes, absorbed solar heat is temporarily stored in the heat storage system, and electricity is generated when the channel has allowance;
electric heating heat recovery mode: under the poor condition of future resource condition prediction, multiple energy types independently generate electricity, except for light and heat, other electricity generation types convert electric quantity into heat through the electrical heating recovery system and store in the light and heat power station heat storage system, preferentially guarantee the future output of light and heat unit, other electricity generation types generate electricity on the basis of having surplus.
3. The method for continuous and stable generation of electricity from total renewable energy sources according to claim 1, characterized in that the installed photovoltaic power plant comprises at least a photovoltaic power generation system (1), an electric heating recovery system (2) and one or more of the following power generation types:
the system comprises a photovoltaic power generation system (3), a wind power generation system (4), a battery energy storage system (5) and a pumped storage power generation system (6).
4. The method for continuous and stable power generation by using full renewable energy sources as claimed in claim 3, wherein the photo-thermal power generation system (1) at least comprises a light-gathering and heat-collecting system (7), a heat storage system (8) and a power generation unit (9).
5. The continuous and stable power generation method of the full renewable energy according to claim 3 or 4, characterized in that the configuration of the photo-thermal power generation system (1) is consistent with the minimum guaranteed output requirement of the power grid, the capacity configuration of the photovoltaic power generation system (3) and the wind power generation system (4) is determined according to optimization calculation, when the light resource or the wind resource is good, the system is integrally scheduled, the resource characteristic of a future period of time is predicted, the electric quantity of the photovoltaic power or the wind power is recycled and converted into heat through the electric heating recycling system (2) in advance and stored in the heat storage system (8), when the light resource and the wind resource are poor, the heat is released through the heat storage system (8), and the minimum load requirement of the power grid is guaranteed through the power generation unit (9) for power generation; the capacity ratios of the photo-thermal power generation system (1), the electric heating recovery system (2) and other energy types are determined by optimizing, comparing and selecting according to the minimum stability requirement of a power grid on the system.
6. The method for continuously and stably generating power from full renewable energy sources as claimed in claim 3, wherein the electric heating recovery system (2) adopts a molten salt electric heater, a solid heat storage system electric heater and a hot water storage tank electric heater.
7. A method for continuous and stable power generation from fully renewable energy sources according to claim 3, characterized in that the photovoltaic power generation system (3) comprises conventional photovoltaic and high-power focused photovoltaic, which can be coupled with the heat collection system (7) of the photothermal power generation system.
8. The continuous and stable power generation method based on full renewable energy sources as claimed in claim 3, wherein said light-gathering and heat-collecting system (7) adopts one or more of a tower type solar thermal power generation mirror field and a heat absorber, a trough type heat collector, a linear Fresnel heat collection field and a dish type heat collector.
9. The method for continuous and stable power generation by full renewable energy sources as claimed in claim 3, wherein the heat storage system (8) adopts one or a concentrated combination of sensible heat storage, latent heat storage and solid heat storage.
10. The method for continuous and stable power generation by using full renewable energy sources as claimed in claim 3, characterized in that the power generation unit (9) adopts a steam turbine generator set, a gas turbine generator set or a supercritical carbon dioxide turbine power generation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110471357.8A CN113224799B (en) | 2021-04-29 | 2021-04-29 | Full renewable energy continuous and stable power generation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110471357.8A CN113224799B (en) | 2021-04-29 | 2021-04-29 | Full renewable energy continuous and stable power generation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113224799A true CN113224799A (en) | 2021-08-06 |
| CN113224799B CN113224799B (en) | 2024-04-02 |
Family
ID=77089951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110471357.8A Active CN113224799B (en) | 2021-04-29 | 2021-04-29 | Full renewable energy continuous and stable power generation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113224799B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009010434U1 (en) * | 2009-07-31 | 2009-11-19 | Drozynski, Josef | solar module |
| CN109687520A (en) * | 2019-01-07 | 2019-04-26 | 浙江中光新能源科技有限公司 | A kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system |
| CN109900001A (en) * | 2019-04-11 | 2019-06-18 | 南瑞集团有限公司 | A kind of wind light generation joint electric heat storage comprehensive energy supply system |
| CN112325493A (en) * | 2020-11-12 | 2021-02-05 | 北京能脉科技有限公司 | Control equipment and method for improving salt melting efficiency of photo-thermal power station |
-
2021
- 2021-04-29 CN CN202110471357.8A patent/CN113224799B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009010434U1 (en) * | 2009-07-31 | 2009-11-19 | Drozynski, Josef | solar module |
| CN109687520A (en) * | 2019-01-07 | 2019-04-26 | 浙江中光新能源科技有限公司 | A kind of photovoltaic for electric power isolated network and photothermal complementary electricity generation system |
| CN109900001A (en) * | 2019-04-11 | 2019-06-18 | 南瑞集团有限公司 | A kind of wind light generation joint electric heat storage comprehensive energy supply system |
| CN112325493A (en) * | 2020-11-12 | 2021-02-05 | 北京能脉科技有限公司 | Control equipment and method for improving salt melting efficiency of photo-thermal power station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113224799B (en) | 2024-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108321837B (en) | Wind power-photo-thermal combined power generation system and operation method thereof | |
| Abdali et al. | Hybrid power generation by using solar and wind energy | |
| CN202100399U (en) | Solar energy and common boiler combined power-generating and heating system | |
| CN106712033B (en) | A kind of method of steam power plant's consumption abandonment | |
| CN112541609A (en) | Wind-light-heat and water energy storage combined renewable energy power generation system capacity optimization model | |
| CN112953364A (en) | Photothermal-wind power-photovoltaic combined system operation optimization model considering photothermal power station service life | |
| CN112531786A (en) | Regional power grid power delivery method | |
| CN114759599A (en) | Photo-hydrogen fuel cell cogeneration system, capacity allocation method, and medium | |
| Singh et al. | Solar cogeneration in India: current situation and future prospects | |
| CN202100400U (en) | Power generation and heat supply system with combination of solar energy and biomass fuel boiler | |
| CN212063516U (en) | Clean energy power generation, power supply and heat supply system | |
| CN113224799B (en) | Full renewable energy continuous and stable power generation method | |
| CN215176096U (en) | Solar photovoltaic photo-thermal hybrid power generation system | |
| Chamundeswari et al. | Renewable energy technologies | |
| CN112149339B (en) | Capacity optimization model of wind power-photovoltaic-photothermal-electric heater complementary power generation system | |
| Nawawi et al. | Performance analysis of a VPV/FC hybrid system for generating electricity in Iraq's remote areas | |
| Taye et al. | Review on Solar Thermal and Photovoltaic Energy System | |
| CN112923585A (en) | Fused salt heat storage photo-thermal power station operation optimization system and method | |
| Sha et al. | Robust economic dispatching of high renewable energy penetrated system with concentrating solar power providing reserve capacity | |
| CN215170566U (en) | Brayton heat pump circulating energy storage system | |
| CN212305206U (en) | Photo-thermal photovoltaic complementary cooperative power generation system | |
| Li et al. | Study on grid planning method considering multiple energy access | |
| CN117216963B (en) | Comprehensive energy system operation method for carbon-hydrogen utilization | |
| Anderson et al. | Where we stand with renewable energy | |
| Zhao et al. | Optimal Allocation and Operation of Combined Heat and Power Microgrid Including Phase Change Heat Storage |
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 |