CN215378555U - Light stores up integration data center for little electric wire netting power supply guarantee device - Google Patents
Light stores up integration data center for little electric wire netting power supply guarantee device Download PDFInfo
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- CN215378555U CN215378555U CN202120922497.8U CN202120922497U CN215378555U CN 215378555 U CN215378555 U CN 215378555U CN 202120922497 U CN202120922497 U CN 202120922497U CN 215378555 U CN215378555 U CN 215378555U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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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Abstract
The utility model discloses a data center power supply guarantee device for a light storage integrated microgrid, and relates to the technical field of microgrids, wherein the data center power supply guarantee device comprises a 10kV bus I and a 10kV bus II, the 10kV bus I is connected with the 10kV bus II through a connection, the 10kV bus I is electrically connected with a 0.4kV bus I through a first transformer, the 10kV bus II is also electrically connected with a 0.4kV bus II through a second transformer with the capacity of 1250kVA, and the 0.4kV bus I is connected with the 0.4kV bus II; the design of the data center power supply guarantee control system and the strategy of the utility model follows the principle of local and temporal conditions, and reasonably optimizes each key technology in the micro-grid and data center load application, so that the light storage integrated micro-grid can be operated on grid or off grid.
Description
Technical Field
The utility model relates to the technical field of micro-grids, in particular to a data center power supply guarantee device for a light storage integrated micro-grid.
Background
The micro-grid belongs to a complex system with nonlinearity, multiple constraints, multiple time scales and multiple dimensions, and the micro-grid is proposed to realize flexible and efficient application of distributed power supplies and solve the problem of grid connection of the distributed power supplies with huge number and various forms.
Based on the above reasons, it is necessary to design a data center power supply guarantee device for a light storage integrated microgrid to meet the requirements of the modern society on the microgrid.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a data center power supply guarantee device for a light storage integrated micro-grid, which solves the problems in the prior art.
In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a light stores up integration data center for microgrid guarantee device that supplies power, includes 10kV generating line I and 10kV generating line II, and is connected between 10kV generating line I and the 10kV generating line II, 10kV generating line I is connected with 0.4kV generating line I through first transformer electricity, and 10kV generating line II also is connected with 0.4kV generating line II through the second transformer electricity that capacity is 1250kVA, electricity is connected between 10kV generating line I and the 10kV generating line II, electricity is connected between 0.4kV generating line I and the 0.4kV generating line II.
Further, the 0.4kV bus I is electrically connected with two group control devices and a direct current charging pile in sequence;
further, the 0.4kV bus I is electrically connected with a second data center double-power-supply switching cabinet, a data center second UPS power supply and a standby column head cabinet in sequence through a fourth low-voltage side circuit breaker;
and the 0.4kV bus I is electrically connected with a first data center double-power-supply switching cabinet, a first data center UPS (uninterrupted power supply) and a main column head cabinet in sequence through a third low-voltage side circuit breaker.
Further, the 0.4kV bus II is electrically connected with an energy storage converter, a lead-acid battery pack, a photovoltaic inverter and a photovoltaic module in sequence through a first low-voltage side circuit breaker;
the 0.4kV bus II is also electrically connected with a first data center double-power-supply switching cabinet, a data center first UPS power supply and a main column head cabinet in sequence through a first low-voltage side circuit breaker;
and the 0.4kV bus II is electrically connected with a second data center double-power-supply switching cabinet, a data center second UPS power supply and a standby column head cabinet in sequence through a second low-voltage side circuit breaker.
Further, the power of the photovoltaic inverter is 100kW, and the power of the energy storage converter is 250 kW;
the lead-acid battery pack consists of 336 lead-acid storage batteries.
Further, the first transformer and the second transformer are both 1250kVA transformers.
Compared with the prior art, the utility model has the following beneficial effects: the design of a data center power supply guarantee control system and a strategy follows the principle of local conditions and time conditions, and each key technology in micro-grid and data center load application is reasonably optimized, so that the light storage integrated micro-grid can be operated on grid or off grid.
Drawings
FIG. 1 is a schematic diagram of a data center power supply assurance of the present invention;
fig. 2 is an off-grid operating schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a light stores up integration data center for microgrid guarantee device that supplies power, including 10kV generating line I and 10kV generating line II, and be connected between 10kV generating line I and the 10kV generating line II, specifically can adopt female antithetical couplet/segmentation circuit breaker or segmentation reactor to connect, 10kV generating line I is connected with 0.4kV generating line I through the first transformer electricity that capacity is 1250kVA, and 10kV generating line II also is connected with 0.4kV generating line II through the second transformer electricity that capacity is 1250kVA, electricity is connected between 10kV generating line I and the 10kV generating line II, electricity is connected between 0.4kV generating line I and the 0.4kV generating line II.
The system comprises a 0.4kV bus I, a master controller, a plurality of pieces of equipment and a plurality of pieces of direct current charging piles, wherein the 0.4kV bus I is electrically connected with two group control devices and the direct current charging piles in sequence;
the 0.4kV bus I is electrically connected with a second data center double-power-supply switching cabinet, a data center second UPS power supply and a standby column head cabinet in sequence through a fourth low-voltage side circuit breaker;
the 0.4kV bus I is electrically connected with a first data center double-power-supply switching cabinet, a data center first UPS power supply and a main column head cabinet in sequence through a third low-voltage side circuit breaker.
The 0.4kV bus II is electrically connected with an energy storage converter, a lead-acid battery pack, a photovoltaic inverter and a photovoltaic module in sequence through a first low-voltage side circuit breaker;
the 0.4kV bus II is also electrically connected with a first data center double-power-supply switching cabinet, a data center first UPS power supply and a main column head cabinet in sequence through a first low-voltage side circuit breaker;
and the 0.4kV bus II is electrically connected with a second data center double-power-supply switching cabinet, a data center second UPS power supply and a standby column head cabinet in sequence through a second low-voltage side circuit breaker.
The power of the photovoltaic inverter is 100kW, and the power of the energy storage converter is 250 kW;
the lead-acid battery pack consists of 336 lead-acid storage batteries.
Wherein the first transformer and the second transformer are both 1250kVA transformers.
The working principle is as follows: when the total station power grid normally operates, a third low-voltage side circuit breaker and a fourth low-voltage side circuit breaker on a 10kV bus section I, a first low-voltage side circuit breaker and a second low-voltage side circuit breaker on a 10kV bus section II are all in a closed state, and a server main and standby column head cabinets adopt a data center first UPS power supply and a data center second UPS power supply to simultaneously supply power; when the I section of the 10kV bus loses power, the double-power-supply switching cabinet is switched to the II section of the 10kV bus, normal power supply is realized through the first low-voltage-side circuit breaker and the second low-voltage-side circuit breaker, and the main and standby column head cabinets of the server adopt the first UPS power supply of the data center and the second UPS power supply of the data center to supply power simultaneously; when the 10kV bus II loses power, the double-power-supply switching cabinet is switched to a 10kV bus I section, normal power supply is realized through the third low-voltage-side circuit breaker and the fourth low-voltage-side circuit breaker, and the main and standby column head cabinets of the server adopt UPS1 and UPS2 power supplies for supplying power at the same time; an Energy Management System (EMS) controls a photovoltaic system and an energy storage system to work, photovoltaic power generation adopts a V/F mode for grid connection, self-generation and self-elimination are taken as main parts, and surplus part of generated energy can be used for charging the energy storage system; when the photovoltaic power generation is insufficient, the insufficient part can be directly supplemented by a power grid at a power utilization valley section. In the electricity consumption peak section, the energy storage system supplements the electricity consumption peak section so as to achieve the best economic benefit.
When the first low-voltage side circuit breaker of the energy storage system on the 10kV bus II section loses power, the photovoltaic power generation system and the energy storage system are switched into an island protection state, and the UPS immediately carries out storage battery inversion power supply; the EMS controls the first low-voltage side circuit breaker to be disconnected, and at the moment, the photovoltaic power generation system, the energy storage system and the UPS1 standby power supply part are isolated from the low-voltage side of the II section of the 10kV bus; the energy storage system is switched from a grid-connected island state to a constant-voltage mode for off-grid power supply, electric energy output by a power storage converter (PCS) is supplied to a dual-power switching cabinet AP1 through a connecting point at the lower end of a first low-voltage side circuit breaker, and a UPS1 power supply is switched to a standby power supply state and can supply power continuously for 5 hours; the whole microgrid of the energy storage system provides voltage and frequency references, the photovoltaic inverter automatically starts a U/f mode to generate electricity to provide electric energy for a data center load, and the insufficient part is supplemented by the energy storage converter, so that the power supply time is prolonged to the maximum extent; after the voltage of the power grid is recovered, the dual-power switching devices AP1 and AP2 are automatically switched to a main power supply mode; when the energy storage system monitors that power supply of a power grid is recovered through an ammeter W at the upper end of a first low-voltage side circuit breaker, the PCS is stopped after power supply is prolonged for 2 minutes, and the photovoltaic power generation system immediately stops outputting; the EMS closes the first low-voltage side circuit breaker, the energy storage system exits the off-grid power supply mode and is converted into a grid-connected standby mode, and the photovoltaic power generation system is converted into a normal power generation state;
the method comprises the steps that the premise of micro-grid-connected and off-grid operation conversion is that whether a low-voltage bus II is in voltage loss or not is judged, electricity meter data of an incoming line end of a first low-voltage side circuit breaker is used as a judgment basis, after the power loss, the state of the first low-voltage side circuit breaker is judged firstly, the operation mode of a PCS can be changed through an EMS after the first low-voltage side circuit breaker is opened, and a micro-grid system is converted into an off-grid operation mode. The micro-grid energy storage control strategy is switched to U/f control, frequency and voltage reference is provided for photovoltaic power generation, and the photovoltaic inverter still adopts a P/Q control strategy;
finally, the design of the data center power supply guarantee control system and the strategy follows the principle of local conditions and time conditions, and reasonably optimizes each key technology in the micro-grid and data center load application, so that the light storage integrated micro-grid can be operated on grid or off grid. When the micro-grid is connected with the power grid, the photovoltaic system and the energy storage system are used as main power supply sources in the micro-grid, the load electricity of the data center mainly comes from photovoltaic power generation, and the energy storage system can smooth the fluctuation of the photovoltaic power generation, so that the power grid access friendliness of the micro-grid is improved; when the photovoltaic integrated micro-grid operates off-grid, the photovoltaic integrated micro-grid starts an emergency standby power supply function, a storage battery establishes stable voltage and frequency through a power storage converter (PCS), and the photovoltaic integrated micro-grid provides continuous power supply for data center loads in the micro-grid according to the reference voltage and frequency.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a light stores up integration data center for microgrid power supply guarantee device which characterized in that: the high-voltage-capacity photovoltaic power generation system comprises a 10kV bus I and a 10kV bus II, wherein the 10kV bus I is connected with the 10kV bus II, the 10kV bus I is electrically connected with a 0.4kV bus I through a first transformer, the 10kV bus II is also electrically connected with a 0.4kV bus II through a second transformer with the capacity of 1250kVA, the 10kV bus I is electrically connected with the 10kV bus II, and the 0.4kV bus I is electrically connected with the 0.4kV bus II;
the 0.4kV bus II is electrically connected with an energy storage converter, a lead-acid battery pack, a photovoltaic inverter and a photovoltaic assembly in sequence through a first low-voltage side circuit breaker;
the 0.4kV bus II is also electrically connected with a first data center double-power-supply switching cabinet, a data center first UPS power supply and a main column head cabinet in sequence through a first low-voltage side circuit breaker;
and the 0.4kV bus II is electrically connected with a second data center double-power-supply switching cabinet, a data center second UPS power supply and a standby column head cabinet in sequence through a second low-voltage side circuit breaker.
2. The data center power supply guarantee device for the light-storage integrated microgrid according to claim 1, characterized in that: and the 0.4kV bus I is electrically connected with two group control devices and a direct current charging pile in sequence.
3. The data center power supply guarantee device for the light-storage integrated microgrid according to claim 1, characterized in that: the 0.4kV bus I is electrically connected with a second data center double-power-supply switching cabinet, a data center second UPS power supply and a standby column head cabinet in sequence through a fourth low-voltage side circuit breaker;
and the 0.4kV bus I is electrically connected with a first data center double-power-supply switching cabinet, a first data center UPS (uninterrupted power supply) and a main column head cabinet in sequence through a third low-voltage side circuit breaker.
4. The data center power supply guarantee device for the light-storage integrated microgrid according to claim 1, characterized in that: the power of the photovoltaic inverter is 100kW, and the power of the energy storage converter is 250 kW;
the lead-acid battery pack consists of 336 lead-acid storage batteries.
5. The data center power supply guarantee device for the light-storage integrated microgrid according to claim 1, characterized in that: the first transformer and the second transformer are both 1250kVA transformers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020221826559 | 2020-09-29 | ||
| CN202022182655 | 2020-09-29 |
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| Publication Number | Publication Date |
|---|---|
| CN215378555U true CN215378555U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120922497.8U Active CN215378555U (en) | 2020-09-29 | 2021-04-30 | Light stores up integration data center for little electric wire netting power supply guarantee device |
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| Country | Link |
|---|---|
| CN (1) | CN215378555U (en) |
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2021
- 2021-04-30 CN CN202120922497.8U patent/CN215378555U/en active Active
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