CN212803463U - Wind power generation system with compressed air energy storage function - Google Patents
Wind power generation system with compressed air energy storage function Download PDFInfo
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- CN212803463U CN212803463U CN202021075541.8U CN202021075541U CN212803463U CN 212803463 U CN212803463 U CN 212803463U CN 202021075541 U CN202021075541 U CN 202021075541U CN 212803463 U CN212803463 U CN 212803463U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
The utility model discloses a wind power generation system with compressed air energy storage, which is characterized in that the system comprises a fan for converting wind energy into mechanical energy, a first generator for converting mechanical energy into electrical energy, a compressor for compressing air, a compressed air storage tank for storing compressed air and an electric network, wherein the fan is respectively connected with the first generator and the compressor; the connection among the fan, the first generator and the compressor is converted through a clutch. The utility model discloses on original compressed air energy storage system's basis, optimize original compressed air energy storage system and improve wind power generation's mechanical conversion system, through the connection conversion under the different operating modes between fan and first generator, fan and compressor, first generator and the compressor, the reduce system complexity improves system energy conversion efficiency, reduces the plant maintenance expense, is favorable to the extensive absorption of wind energy.
Description
Technical Field
The utility model relates to a wind power generation system with compressed air energy storage utilizes wind energy to carry out air compression and stores and the electricity generation, belongs to power generation facility technical field.
Background
By the end of 2019, the wind power accumulated installed capacity in China reaches 128.30GW, and the year is increased by 34% in the thirteen-five period; the installed solar power generation capacity is 43.18GW, and the annual growth in the period of 'thirteen five' is 119%; the accumulated installed capacity of new energy reaches 171.48GW, which is the first place in the world. However, the output of new energy such as wind, light and the like has randomness and volatility, and large-scale consumption is always a worldwide problem. Because of the problems of natural characteristics, power system conditions, market mechanisms and the like in China, the consumption of new energy sources faces more challenges, and the problems of severe wind abandonment and light abandonment appear, thereby causing wide attention of various social circles. In 2019, the total consumption electric quantity of the new energy in China is 223TW & h, the total quantity of the abandoned wind and the abandoned light is 39TW & h, and the energy is seriously wasted because the total quantity of the abandoned wind and the abandoned light is continuously increased. Therefore, an efficient energy storage mode is required to be combined with renewable energy power generation to improve the stability of the system, improve the quality of electric energy and improve the utilization rate of resources, and is very important for solving the problem of consumption of renewable energy.
In order to solve the problem of wind abandonment and consume renewable energy on a large scale, a wind power generation system utilizing compressed air for energy storage needs to be provided.
The system flow diagram of the existing compressed air energy storage system is shown in fig. 1, and a fan 1, a first generator 2, a motor 8, a compressor 4, a compressed air storage tank 5, a turbine 6 and a second generator 7 are connected in sequence. The working principle is as follows:
when the electricity is used in the valley and the wind energy is sufficient:
1. wind energy is converted into rotary mechanical energy through the fan 1;
2. the rotational mechanical energy is converted into electric energy by the first generator 2;
3. converted into mechanical energy by the motor 8;
4. the mechanical energy drives the compressor 4 to store compressed air in the compressed air storage tank 5.
During peak electricity consumption and no wind energy:
1. the compressed energy in the compressed air storage tank 5 pushes the turbine 6 to be converted into mechanical energy;
2. the second generator 7 converts the mechanical energy into electrical energy for the user.
The existing compressed air energy storage system has complex conversion flow and low transmission machinery, so that the energy conversion efficiency is low and the equipment maintenance cost is high.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: how to simplify the compressed air energy storage system conversion flow, improve energy conversion efficiency, reduce the equipment maintenance expense.
In order to solve the technical problem, the technical scheme of the utility model is to provide a wind power generation system with compressed air energy storage, which is characterized in that, including the fan that turns wind energy into mechanical energy, the first generator that turns mechanical energy into electric energy, the compressor that is used for compressed air, the compressed air storage tank that is used for storing compressed air and electric wire netting, the fan connect first generator and compressor respectively, the electric wire netting is connected to the output of first generator, the compressor connects the compressed air storage tank; the connection among the fan, the first generator and the compressor is converted through a clutch.
Preferably, when the power consumption is high and the wind energy is sufficient, the wind energy is converted into mechanical energy through the fan, the mechanical energy is converted into electric energy through the first generator, and the electric energy generated by the first generator is sent to a power grid;
when the electricity consumption is low and the wind energy is sufficient, the wind energy is converted into mechanical energy through the fan, and the mechanical energy drives the compressor to store compressed air in the compressed air storage tank;
when the electricity consumption peak is high and no wind energy exists, the pressure potential energy stored in the compressed air storage tank reversely pushes the compressor, the pressure potential energy is converted into mechanical energy through the compressor, and the compressor drives the first generator through the clutch to convert the mechanical energy into electric energy to be sent to a power grid.
The utility model discloses on original compressed air energy storage system's basis, optimize original compressed air energy storage system and improve wind power generation's mechanical conversion system, through the connection conversion under the different operating modes between fan and first generator, fan and compressor, first generator and the compressor, the reduce system complexity improves system energy conversion efficiency, reduces the plant maintenance expense, is favorable to the extensive absorption of wind energy.
Drawings
FIG. 1 is a system flow diagram of a prior art compressed air energy storage system;
fig. 2 is a flow chart of a wind power generation system with compressed air energy storage according to the present invention.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The utility model relates to a wind power generation system with compressed air energy storage, as shown in figure 2, it includes fan 1, first generator 2, electric wire netting 3, compressor 4, compressed air storage tank 5, fan 1 connects first generator 2 and compressor 4 respectively, the output of first generator 2 connects electric wire netting 3, compressor 4 connects compressed air storage tank 5; the connection among the fan 1, the first generator 2 and the compressor 4 is switched by a clutch.
The utility model discloses a wind power generation system's operation as follows:
when the power consumption peak is high and the wind energy is sufficient, the wind energy is converted into mechanical energy through the fan 1, the mechanical energy is converted into electric energy through the first generator 2, and the electric energy generated by the first generator 2 is sent to the power grid 3.
When the electricity consumption is low and the wind energy is sufficient, the wind energy is converted into mechanical energy through the fan 1, and the mechanical energy drives the compressor 4 to store the compressed air in the compressed air storage tank 5. The connection among the fan 1, the first generator 2 and the compressor 4 is switched by a clutch.
When the electricity consumption is in a peak and no wind energy exists, the pressure potential energy stored in the compressed air storage tank 5 reversely pushes the compressor 4, the pressure potential energy is converted into mechanical energy through the compressor 4, and the compressor 4 drives the first generator 2 to convert the mechanical energy into electric energy through the clutch and sends the electric energy into the power grid 3.
Claims (2)
1. A wind power generation system with compressed air energy storage function is characterized by comprising a fan (1) for converting wind energy into mechanical energy, a first generator (2) for converting the mechanical energy into electric energy, a compressor (4) for compressing air, a compressed air storage tank (5) for storing the compressed air and a power grid (3), wherein the fan (1) is respectively connected with the first generator (2) and the compressor (4), the output end of the first generator (2) is connected with the power grid (3), and the compressor (4) is connected with the compressed air storage tank (5); the connection among the fan (1), the first generator (2) and the compressor (4) is converted through a clutch.
2. A wind power system with compressed air energy storage according to claim 1,
when the electricity consumption peak is high and the wind energy is sufficient, the wind energy is converted into mechanical energy through the fan (1), the mechanical energy is converted into electric energy through the first generator (2), and the electric energy generated by the first generator (2) is sent to the power grid (3);
when the electricity consumption is low and the wind energy is sufficient, the wind energy is converted into mechanical energy through the fan (1), and the mechanical energy drives the compressor (4) to store compressed air in the compressed air storage tank (5);
when the electricity consumption peak is high and no wind energy exists, the pressure potential energy stored in the compressed air storage tank (5) reversely pushes the compressor (4), the pressure potential energy is converted into mechanical energy through the compressor (4), and the compressor (4) drives the first generator (2) to convert the mechanical energy into electric energy through the clutch and send the electric energy into the power grid (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021075541.8U CN212803463U (en) | 2020-06-11 | 2020-06-11 | Wind power generation system with compressed air energy storage function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021075541.8U CN212803463U (en) | 2020-06-11 | 2020-06-11 | Wind power generation system with compressed air energy storage function |
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| Publication Number | Publication Date |
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| CN212803463U true CN212803463U (en) | 2021-03-26 |
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| CN202021075541.8U Active CN212803463U (en) | 2020-06-11 | 2020-06-11 | Wind power generation system with compressed air energy storage function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217291A (en) * | 2021-05-25 | 2021-08-06 | 中国华能集团清洁能源技术研究院有限公司 | Double-fed wind turbine generator set integrating compressed air energy storage function and working method thereof |
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2020
- 2020-06-11 CN CN202021075541.8U patent/CN212803463U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217291A (en) * | 2021-05-25 | 2021-08-06 | 中国华能集团清洁能源技术研究院有限公司 | Double-fed wind turbine generator set integrating compressed air energy storage function and working method thereof |
| CN113217291B (en) * | 2021-05-25 | 2022-03-22 | 中国华能集团清洁能源技术研究院有限公司 | Double-fed wind turbine generator set integrating compressed air energy storage function and working method thereof |
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