CN210608559U - Power grid energy storage device - Google Patents
Power grid energy storage device Download PDFInfo
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- CN210608559U CN210608559U CN201921744124.5U CN201921744124U CN210608559U CN 210608559 U CN210608559 U CN 210608559U CN 201921744124 U CN201921744124 U CN 201921744124U CN 210608559 U CN210608559 U CN 210608559U
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- energy
- power grid
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- 238000004146 energy storage Methods 0.000 title claims abstract description 41
- 230000005611 electricity Effects 0.000 claims abstract description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 4
- 229910001416 lithium ion Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Classifications
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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 relates to a power grid peak valley energy storage equipment field, in particular to power grid energy storage device contains: a power plant comprising a wind power plant and/or a solar power plant; the inverter device is connected with the power station and is used for transmitting the electric energy of the power station to a power grid through constant power; and the energy storage battery pack is connected with the power station and the inverter device, stores the electric energy of the power station, and charges the energy storage battery pack by using the power grid during the power valley time of the inverter device and supplies power to the power grid by using the energy storage battery pack during the power peak time. The utility model has simple structure and novel and reasonable design, is used for the impact of intermittent energy sources such as solar energy and wind energy on the power grid, and solves the phenomena of wind and light abandonment; the peak-valley electricity price peak clipping and valley leveling are realized through an inverter, the electricity cost is reduced for users, the load of a power grid is balanced, and automatic charging is realized according to the peak valley of the power grid; the system meets the management and control requirements of remote regulation and control and the like at any time according to the power load by the power department, and has strong popularization and application values.
Description
Technical Field
The utility model relates to a power grid peak valley energy storage equipment field, in particular to power grid energy memory.
Background
Facing the huge challenges of global energy conservation and emission reduction and sustainable energy development, wind power generation refers to converting kinetic energy of wind into electric energy, wind power generation is environment-friendly and generates huge electric energy, solar photovoltaic power generation refers to a power generation mode of directly converting light energy into electric energy without a thermal process, and wind energy and solar power generation are more and more emphasized by various countries. The rapid development of distributed renewable resource power generation becomes a necessary choice and is also a development trend of intelligent power distribution networks. Compared with the traditional centralized power supply mode, the distributed power generation has flexible operation and consumes clean energy on the spot, but the power access cost is high, the phenomenon of wind and light abandonment cannot be solved, and the automatic regulation and control cannot be realized according to the peak valley of the power grid.
Disclosure of Invention
Therefore, the utility model provides a power grid energy storage device, design science, reasonable solves among the current power grid energy storage equipment with high costs, the unable make full use of scheduling problem of energy, utilizes the output that stabilizes, stabilizes intermittent type formula renewable energy power generation such as wind energy solar energy, improves the electric wire netting and accepts intermittent type formula renewable energy ability.
According to the utility model provides a design, a power grid energy storage device contains:
a power plant comprising a wind power plant and/or a solar power plant;
the inverter device is connected with the power station and is used for transmitting the electric energy of the power station to a power grid through constant power;
and the energy storage battery pack is connected with the power station and the inverter device, stores the electric energy of the power station, and charges the energy storage battery pack by using the power grid during the power valley time of the inverter device and supplies power to the power grid by using the energy storage battery pack during the power peak time.
As the utility model discloses electric wire netting energy memory, furtherly, inverter adopts and leaves the net all-in-one.
As the utility model discloses electric wire netting energy memory, furtherly, be provided with the network interface that is used for being connected with the internet on the inverter.
As the utility model discloses electric wire netting energy memory, further, the inverter output side still is connected with and is used for consumer.
As the utility model discloses electric wire netting energy memory, further, the consumer and the electric wire netting that inverter output side connects are equipped with the change over switch who is used for switching and inverter connection on both and the inverter connecting line.
As the utility model discloses electric wire netting energy memory, furtherly, the energy storage group battery adopts water system lithium ion battery.
The utility model has the advantages that:
the utility model has simple structure and novel and reasonable design, is used for the impact of intermittent energy sources such as solar energy and wind energy on the power grid, and solves the phenomena of wind and light abandonment; the peak-valley electricity price peak clipping and valley leveling are realized through an inverter, the electricity cost is reduced for users, the load of a power grid is balanced, and automatic charging is realized according to the peak valley of the power grid; the system meets the management and control requirements of remote regulation and control and the like at any time according to the power load by the power department, and has strong popularization and application values.
Description of the drawings:
FIG. 1 is a schematic diagram of an embodiment of a grid energy storage device;
FIG. 2 is a schematic diagram of an embodiment in which an energy storage battery pack supplies power to a power grid;
FIG. 3 is a schematic diagram illustrating an embodiment of charging an energy storage battery pack by a power grid;
fig. 4 is a second schematic diagram of the grid energy storage device in the embodiment.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and technical solutions, and embodiments of the present invention will be described in detail by way of preferred examples, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1 to 3, an embodiment of the present invention provides a grid energy storage device, a power station, and a wind power station and/or a solar power station;
the inverter device is connected with the power station and is used for transmitting the electric energy of the power station to a power grid through constant power;
and the energy storage battery pack is connected with the power station and the inverter device, stores the electric energy of the power station, and charges the energy storage battery pack by using the power grid during the power valley time of the inverter device and supplies power to the power grid by using the energy storage battery pack during the power peak time.
The peak-valley electricity price peak clipping and valley leveling are realized through an inverter, the electricity cost is reduced for users, the load of a power grid is balanced, and automatic charging is realized according to the peak valley of the power grid; the management and control requirements of the power department such as remote regulation and control at any time according to the power load are met; the solar energy and wind energy combined power grid is used for impacting a power grid by intermittent performance sources such as solar energy and wind energy, the phenomenon that wind and light are abandoned is solved, the cost is reduced, and stable and intelligent power supply of the power grid is realized.
As the embodiment of the utility model provides an in electric wire netting energy memory, further, inverter adopts and leaves the net all-in-one. The grid-connected all-in-one machine can adopt SUNFREE 5K to realize regulation and control of energy storage and power supply of a power grid. When wind energy and solar energy are used for power generation, the wind energy and solar energy can be stored in the energy storage battery pack firstly, the inverter transmits electric energy to a power grid at constant power, the impact of an intermittent performance source on the power grid is solved, and the phenomena of wind abandonment and light abandonment are solved. Referring to fig. 2, the energy storage battery pack supplies power to the grid through the inverter device during peak power. Referring to fig. 3, during the valley power, the grid charges the energy storage battery pack through the inverter. The peak-valley electricity price is used for peak clipping and valley leveling, so that the electricity cost is reduced for users, and the load of a power grid is balanced. And automatically charging according to the peak valley of the power grid.
As the embodiment of the utility model provides an in electric wire netting energy memory, furtherly, be provided with on the inverter and be used for the network interface be connected with the internet, electric power department accessible network adjusts charge-discharge state and power, and the electric wire netting enterprise of being convenient for can acquire more peak load earnings when peak regulation and power supply pressure obtain alleviating.
As the embodiment of the utility model provides an in electric wire netting energy memory, further, see that fig. 4 is shown, the inverter output side still is connected with and is used for the consumer, solves emergency power source power supply demand, reduces the loss because of various transient state electric energy quality problems cause.
As the embodiment of the utility model provides an in electric wire netting energy memory, further, both the consumer and the electric wire netting that the inverter output side is connected are equipped with the change over switch who is used for switching and inverter coupling relation with the inverter on the connecting line, design benefit guarantees the operational reliability that is incorporated into the power networks.
As the utility model provides an in the embodiment of the utility model provides an electric wire netting energy memory, furtherly, the energy storage group battery adopts water lithium ion battery. A lead-acid battery: low energy density, short service life and heavy pollution. Mainstream power lithium cell in market: lithium cobaltate batteries, lithium manganate batteries and lithium iron phosphate batteries have high energy density, poor safety and high cost. The embodiment of the utility model provides an in, energy storage battery adopts water system lithium ion battery, has advantages such as security performance height, no environmental pollution, with low costs, high power for energy storage such as wind-force, solar energy power generation, smart power grids peak valley accent lotus cost-benefit is good.
In the utility model, the power station, the energy storage battery pack and the inverter connected with the power grid can solve the problem of power grid peak valley, the peak clipping and valley leveling are realized, and the economic benefit is good by utilizing the peak valley electricity price; the impact of intermittent energy sources such as wind energy and solar energy on a power grid can be reduced, on one hand, the system can be used in a wind energy and solar energy power station to store intermittent energy and stably convey the intermittent energy to the power grid, on the other hand, the system can be scheduled, and a power grid manager sends an instruction through the network to control whether the system transmits power or not or how much power the system transmits power. Ethernet communication can be adopted in the network interface to meet the use requirement of remote scheduling.
The present invention is not limited to the above-described embodiments, and various changes can be made by those skilled in the art, and any changes which are equivalent or similar to the present invention are intended to be covered by the scope of the claims of the present invention.
The term "and/or" herein means that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the above specific embodiments without departing from the scope of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention, which is defined by the appended claims. The foregoing description of specific exemplary embodiments of the invention is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (6)
1. A grid energy storage device, comprising:
a power plant comprising a wind power plant and/or a solar power plant;
the inverter device is connected with the power station and is used for transmitting the electric energy of the power station to a power grid through constant power;
and the energy storage battery pack is connected with the power station and the inverter device, stores the electric energy of the power station, and charges the energy storage battery pack by using the power grid during the power valley time of the inverter device and supplies power to the power grid by using the energy storage battery pack during the power peak time.
2. The grid energy storage device according to claim 1, wherein the inverter is an all-in-one machine with a grid connected and an off-grid connected.
3. The grid energy storage device according to claim 1, wherein the inverter device is provided with a network interface for connecting with the internet.
4. The grid energy storage device according to claim 1, wherein the output side of the inverter is further connected with a device for consuming electricity.
5. The grid energy storage device according to claim 4, wherein a change-over switch for switching over the connection relationship with the inverter device is provided on the connection line between the grid and the electrical equipment connected to the output side of the inverter device.
6. The grid energy storage device according to claim 1, wherein the energy storage battery pack is a water-based lithium ion battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921744124.5U CN210608559U (en) | 2019-10-17 | 2019-10-17 | Power grid energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921744124.5U CN210608559U (en) | 2019-10-17 | 2019-10-17 | Power grid energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210608559U true CN210608559U (en) | 2020-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921744124.5U Active CN210608559U (en) | 2019-10-17 | 2019-10-17 | Power grid energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210608559U (en) |
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2019
- 2019-10-17 CN CN201921744124.5U patent/CN210608559U/en active Active
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