Data center power supply circuit and system

Abstract

The utility model relates to the technical field of offshore wind power, and discloses a data center power supply circuit and system, the circuit comprises at least one wind power generation system, at least one ring main unit and at least one low-voltage power supply system, each wind power generation system is connected with one low-voltage power supply system after being connected in series and networked through one ring main unit; each low-voltage power supply system is connected with at least one data center; the wind power generation system converts wind energy into electric energy and then supplies power to the data center connected with the low-voltage power supply system through the low-voltage power supply system connected with the wind power generation system. Or, when any wind power generation system fails, other wind power generation systems supply power to the corresponding data center through the ring main unit and the low-voltage power supply system connected with the failed wind power generation system. According to the utility model, various power supply ways can be provided for the undersea data center, and the power supply reliability of the undersea data center is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power, and in particular to a power supply circuit and system for a data center. Background Art

[0002] Wind power is the world's fastest-growing green energy technology. While onshore wind farm construction is rapidly developing, limitations such as large land footprint and noise pollution have become apparent. Undersea data centers rely on a single power source and require continuous power supply. Therefore, efficient utilization of wind turbine power is crucial to ensure a continuous supply. However, this makes it difficult to integrate unstable wind turbine power into data centers, hindering their ability to meet their uninterrupted power needs. Utility Model Content

[0003] Therefore, the technical problem to be solved by the present invention is to solve the problem of low power supply reliability of underwater data centers in the prior art, thereby providing a data center power supply circuit and system.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0005] In the first aspect, the utility model provides a data center power supply circuit, comprising: at least one wind power generation system, at least one ring main unit and at least one low-voltage power supply system, wherein each wind power generation system is connected in series through a ring main unit to form a network, and is respectively connected to a low-voltage power supply system; each low-voltage power supply system is respectively connected to at least one data center; after the wind power generation system converts wind energy into electrical energy, it supplies power to the data center connected to the low-voltage power supply system through the low-voltage power supply system connected thereto; or, when any wind power generation system fails, other wind power generation systems supply power to the corresponding data center through the ring main unit and the low-voltage power supply system connected to the failed wind power generation system; when any of the wind power generation systems stops generating electricity, the low-voltage power supply system is used to provide backup power for the data center connected thereto.

[0006] The data center power supply circuit provided by the present invention is that after each wind power generation system independently completes power generation, it directly supplies power to a group of data centers through a low-voltage power supply system. The power supply path is short, avoiding line losses during the power transmission process. The offshore wind power generation system directly supplies power to the data center nearby. The wind power generation system is configured to take power from the ring network cabinet and the power supply end, avoiding losses during the power transmission process, reducing the probability of power failure during the power transmission process, and improving power supply reliability. After multiple wind power generation systems independently complete power generation, they are connected in series through the ring network cabinet. When any wind power generation system fails and cannot supply power to its corresponding data center group, other wind power generation systems can supply power to the data center group through the ring network cabinet. In addition, each low-voltage power supply system has the ability to generate power independently. When all wind power generation systems fail and the city power is cut off, it can supply power to the data center connected to it, thereby improving the power reliability of the data center.

[0007] In an optional embodiment, the wind power generation system is installed in the wind turbine cabin of the wind tower; the ring network cabinet is installed in the base of the wind tower; the low-voltage power supply system is distributed in the base of the wind tower and the underwater data center below the base, and the data center connected to the low-voltage power supply system is installed in the underwater data center below the base of the wind tower.

[0008] The utility model provides a data center power supply circuit. The data center relies on a single wind power generator in a one-to-one combination mode. The wind power generator system is built above the sea surface, and the data center is built below the sea surface. The sea is used in three dimensions and construction can be synchronized, saving costs.

[0009] In an optional embodiment, the wind power generation system includes: a wind power generator, a converter cabinet and a main transformer, wherein the wind power generator is connected to the converter cabinet and is used to convert wind energy into electrical energy; the converter cabinet is connected to the main transformer and is used to adjust the amplitude, phase and frequency of the output voltage of the wind power generator based on preset parameters; the main transformer is connected to the ring network cabinet and is used to boost the output voltage of the converter cabinet.

[0010] The data center power supply circuit provided by the utility model utilizes a converter cabinet to convert the electric energy output by multiple different wind power generators into electric energy with the same voltage effective value, the same phase, and the same frequency, and then inputs it into the ring network cabinet, facilitating grid connection and subsequent power distribution to different data centers.

[0011] In an optional embodiment, the wind power generation system further includes: an auxiliary transformer, which is connected to the converter cabinet and auxiliary equipment in the wind power generation system, and is used to step down the output voltage of the converter cabinet to power the auxiliary equipment.

[0012] In an optional embodiment, the ring main unit is also connected to the power grid; the power grid supplies power to the data center connected to the low-voltage power supply system through any low-voltage power supply system connected to the ring main unit.

[0013] The data center power supply circuit provided by the present invention can reversely supply power to the ring network cabinet to supply power to the data center when all wind power generation systems fail, thereby further improving the reliability of power supply to the data center.

[0014] In an optional embodiment, the low-voltage power supply system includes: a step-down transformer, a generator and an uninterruptible power supply, wherein the step-down transformer is connected to the wind power generation system through a ring network cabinet, and is also connected to a data center, and is used to step down the output voltage of the wind power generation system; the uninterruptible power supply is connected to the step-down transformer and each device in the data center, and is used to provide short-term uninterrupted power supply to the corresponding data center equipment during the generator startup process when any wind power generation system stops generating electricity and the power grid is out of power; the generator is connected to a data center, and is used to supply power to the data center when any wind power generation system stops generating electricity and the power grid is out of power.

[0015] The data center power supply circuit provided by the utility model can provide backup power to the data center through the generator when the wind power generation system fails to generate electricity, thereby improving the reliability of the power supply to the data center.

[0016] In the second aspect, the utility model provides a data center power supply system, comprising: a booster station and multiple data center power supply circuits of the first aspect, wherein one end of all the ring network cabinets in each data center power supply circuit after being connected in series is connected to the main busbar of the booster station; the wind power generation system in any data center power supply circuit can supply power to the data centers connected to other data center power supply circuits through the booster station.

[0017] The data center power supply system provided by the utility model has a booster station bus bar connected to multiple data center power supply circuits, which can provide power to multiple underwater data centers, improve power supply reliability, and maximize the flexible use of offshore wind power generation to meet the data center's needs for continuous and uninterrupted power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1This is a composition diagram of a specific example of a data center power supply circuit according to an embodiment of the present utility model;

[0020] Figure 2 This is a structural diagram of a specific circuit of a data center power supply circuit according to an embodiment of the present utility model;

[0021] Figure 3 This is a composition diagram of a specific example of a data center power supply system according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal connections between two components; they may refer to wireless connections or wired connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0025] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Since the underwater data center is far away from the land and has a single power supply source, in order to increase the power supply reliability of the underwater data center, this embodiment provides a data center power supply circuit, such as Figure 1As shown, it includes: at least one wind power generation system (11~1n), at least one ring network cabinet (21~2n) and at least one low-voltage power supply system (31~3n), the internal structure of each wind power generation system can be the same or different, each low-voltage power supply system is respectively connected to a wind power generation system and a group of data centers, and each low-voltage power supply system is used to convert the electric energy generated by the wind power generation system connected thereto into the voltage level of the data center connected thereto, and then supply power to the group of data centers.

[0027] Figure 1 In the system, each wind power generation system is connected in series through a ring main unit (RMU) and then connected to a low-voltage power supply system; each low-voltage power supply system is connected to at least one data center (#1 to #n). One end of each RMU connected in series is connected to another voltage conversion system, such as a booster station. The voltage conversion system is used to aggregate the electric energy generated by all wind power generation systems and perform voltage conversion to provide power for other equipment.

[0028] Specifically, Figure 1 In this example, Data Center #1 has three power supply modes:

[0029] (1) After the wind power generation system 11 converts wind energy into electrical energy, it supplies power to the equipment in the data center #1 connected to the low-voltage power supply system 31 through the low-voltage power supply system 31 connected to it.

[0030] (2) When the wind power generation system 11 fails and does not generate electricity, any other wind power system (for example, the wind power generation system 1n) transmits the electricity it generates to the ring main unit 21 through the ring network connected to the ring main unit 2n, and supplies power to the equipment in the data center #1 connected through the low-voltage power supply system 31;

[0031] (3) When all wind power generation systems stop generating electricity, the city power can be fed back to the ring main unit 21 through the voltage conversion system, and then supplied to the equipment in the data center #1 connected through the low voltage power supply system 31.

[0032] (4) When all wind power generation systems cease generating power and the utility power is cut off, low-voltage power supply system 31 can generate power independently to provide backup power for the equipment in data center #1 connected thereto. Optionally, each low-voltage power supply system can include equipment such as generators and batteries that can independently generate electricity to provide backup power for the data center.

[0033] It should be noted that in order to ensure uninterrupted power supply to the data center, an uninterruptible power supply can be set to provide short-term power supply for the power switching process of the data center.

[0034] It should be noted that each wind power generation system is connected to a corresponding low-voltage power supply system through a ring network cabinet. There is no limit on the number of wind power generation systems and low-voltage power supply systems, and there is no limit on the number of data centers connected to each low-voltage power supply system. Technical personnel in this field can set it as needed.

[0035] The data center power supply circuit provided in this embodiment is such that after each wind power generation system independently completes power generation, it directly supplies power to a group of data centers through a low-voltage power supply system. The power supply path is short, thus avoiding line loss during the power transmission process. After multiple wind power generation systems independently complete power generation, they are connected in series through a ring network cabinet. When any wind power generation system fails and cannot supply power to its corresponding data center group, other wind power generation systems can supply power to the data center group through the ring network cabinet. Moreover, each low-voltage power supply system has the ability to generate power independently, and can supply power to the data center connected to it when all wind power generation systems fail and the city power is cut off, thereby improving the power supply reliability of the data center.

[0036] In some optional embodiments, such as Figure 2 As shown, taking a group of data center power supply circuits as an example, the wind power generation system 11 is installed in the wind turbine cabin of the wind power tower; the ring network cabinet 21 is installed in the tower base of the wind power tower; the low-voltage power supply system 31 is distributed in the tower base of the wind power tower and the underwater data center below the tower base, and the data center #1 connected to the low-voltage power supply system 31 is installed in the underwater data center below the tower base of the wind power tower.

[0037] Specifically, Figure 2 In this example, the wind turbine tower consists of a nacelle, a tower base, and an underwater data center. The equipment in Data Center #1 draws power directly from the wind turbine system 11 in the nacelle, saving cabling costs and reducing energy losses during transmission. The data center utilizes wind turbines above the sea surface and the underwater data center below, creating a three-dimensional seabed with simultaneous construction and cost savings.

[0038] In some optional embodiments, such as Figure 2 As shown, the wind power generation system 11 includes: a wind power generator 111, a converter cabinet 112 and a main transformer 113, wherein the wind power generator 111 is connected to the converter cabinet 112 and is used to convert wind energy into electrical energy; the converter cabinet 112 is connected to the main transformer 113; the main transformer 113 is connected to the ring network cabinet 21 and is used to boost the output voltage of the converter cabinet 112.

[0039] Specifically, Figure 2In the embodiment, after the wind power generator 111 converts wind energy into electrical energy, the converter cabinet 112 adjusts the amplitude, phase and frequency of the output voltage of the wind power generator 111 based on preset parameters, and the main transformer 113 boosts the electrical energy output by the converter cabinet 112 and inputs it to the ring network cabinet 21, so that the electrical energy output by the wind power generation system 11 is equal to the voltage amplitude, phase and frequency output by the wind power generation systems in all wind turbines in the entire ring network system.

[0040] Optionally, Figure 2 In the embodiment, the ring main unit 21 includes a 35kV main busbar, which is used to connect to the ring main units in other adjacent wind power towers. The main busbar can also be connected to the main busbar of the offshore wind power booster station or the power grid to transmit electric energy.

[0041] Optionally, Figure 2 In the wind power generation system 11, the wind power generation system 11 also includes: an auxiliary transformer 114, which is connected to the converter cabinet 112 and the auxiliary in the wind power generation system 11, and is used to step down the output voltage of the converter cabinet 112 and then connect it to the wind turbine auxiliary power busbar to provide auxiliary power for the auxiliary, wind turbine cabin main control cabinet, cabin, etc.

[0042] In some optional embodiments, such as Figure 2 As shown, the low-voltage power supply system 31 includes: a step-down transformer 311, a generator 312 and multiple uninterruptible power supplies UPS, wherein the step-down transformer 311 is connected to the wind power generation system 11 through the ring network cabinet 21, and is also connected to a data center, and is used to step down the output voltage of the wind power generation system 11; the generator 312 is connected to a data center, and is used to supply power to the data center when any wind power generation system stops generating electricity and the power grid is out of power.

[0043] Specifically, Figure 2 In the data center, multiple uninterruptible power supplies (UPSs) are connected to the step-down transformers and each device in the data center. The UPSs draw power from the busbar for charging, while the devices in the data center draw power from the UPSs. When wind power generation system 11 fails and stops generating power, and other wind power generation systems networked with ring main unit 21 stop generating power, and the mains power outage prevents reverse power transmission, the UPSs provide short-term backup power to the connected data centers. Generator 312 then starts generating power, and the UPSs exit discharge mode to charge. The data center switches from the UPS's short-term backup power supply to the backup power supply from generator 312. Generator 312 can also serve as an additional backup power source within the tower.

[0044] Data Center #1 includes power for end-user electronics, HVAC, and other applications. Multiple devices can be connected to a single busbar, connected to step-down transformer 311 and generator 312. The number of devices connected to each busbar is determined based on project requirements. Step-down transformer 311 converts the 35kV voltage on the main busbar to the 400V voltage required for the underwater data center, directly supplying power to the data center.

[0045] Specifically, if Figure 2 As shown, RMU 21 is also connected to the power grid; the grid supplies power to the data center connected to any low-voltage power supply system connected to RMU 21. Mains power is fed back through the grid to RMU 21. Because RMU 21 is networked in series with other RMUs, even if all wind power generation systems in the network link are unable to generate power, the data center can still obtain mains power through RMU 21.

[0046] This embodiment provides a data center power supply system, such as Figure 3 As shown, the system includes a booster station 4 and multiple data center power supply circuits according to the above embodiments and any of their alternative implementations. Each wind power generation system group includes multiple wind power generation systems, all of which are connected in series to form a ring main unit group. Each low-voltage power supply group includes multiple low-voltage power supply systems. One end of all of the ring main units in each data center power supply circuit is connected to the main busbar of booster station 4. The wind power generation system in any data center power supply circuit can supply power to data centers connected to other data center power supply circuits through booster station 4.

[0047] Specifically, Figure 3 In the system, booster station 4 is connected to one end of the ring main unit (RMU) groups in the power supply circuits of multiple data centers. After the wind power generation system in each wind power generation system group generates electricity, it transmits the electricity through one end of the RMU group to the booster station busbar of booster station 4. Booster station 4 can return power to any RMU group. When any wind power generation system group is not generating electricity, the data center connected to that wind power generation system group can obtain the power returned by booster station 4 through the corresponding RMU in the RMU group. At this time, the power supply of the data center comes from the wind power generation system groups in the power supply circuits of other data centers.

[0048] The data center power supply system provided in this embodiment has a booster station busbar connected to multiple data center power supply circuits, which can provide power to multiple underwater data centers, improve power supply reliability, and maximize the flexible use of offshore wind power generation to meet the data center's needs for continuous and uninterrupted power supply.

[0049] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A data center power supply circuit, characterized in that: include: At least one wind power generation system, at least one ring main unit and at least one low voltage power supply system, wherein: Each of the wind power generation systems is connected to a low-voltage power supply system after being connected in series through a ring main unit; each of the low-voltage power supply systems is connected to a data center; After the wind power generation system converts wind energy into electrical energy, it supplies power to the data center connected to the low-voltage power supply system through the low-voltage power supply system connected to it; or, when any wind power generation system fails, the other wind power generation systems supply power to the corresponding data center through the ring main unit and low-voltage power supply system connected to the failed wind power generation system; When any of the wind power generation systems stops generating electricity, the low-voltage power supply system is used to provide backup power to the data center connected thereto.

2. The data center power supply circuit according to claim 1, characterized in that: The wind power generation system is installed in the wind turbine cabin of the wind power tower; The ring main unit is installed in the tower base of the wind power tower; The low-voltage power supply system is distributed in the tower base of the wind power generation tower and the underwater data center below the tower base. The data center connected to the low-voltage power supply system is installed in the underwater data center below the tower base of the wind power generation tower.

3. The data center power supply circuit according to claim 1, characterized in that: The wind power generation system includes: a wind power generator, a converter cabinet and a main transformer, wherein: A wind power generator connected to the converter cabinet, used for converting wind energy into electrical energy; a converter cabinet connected to the main transformer, configured to adjust the amplitude, phase, and frequency of the output voltage of the wind power generator based on preset parameters; A main transformer is connected to the ring main cabinet and is used to boost the output voltage of the converter cabinet.

4. The data center power supply circuit according to claim 3, characterized in that: The wind energy generation system further includes: An auxiliary transformer is connected to the converter cabinet and the auxiliary equipment in the wind power generation system, and is used to step down the output voltage of the converter cabinet to supply power to the auxiliary equipment.

5. The data center power supply circuit according to claim 1, characterized in that: The ring main unit is also connected to the power grid; The power grid supplies power to a data center connected to any low-voltage power supply system connected to the ring main unit.

6. The data center power supply circuit according to claim 5, characterized in that: The low-voltage power supply system includes: a step-down transformer, a generator and an uninterruptible power supply, wherein: a step-down transformer, connected to the wind power generation system through the ring main unit and also connected to one of the data centers, for stepping down the output voltage of the wind power generation system; An uninterruptible power supply, connected to the step-down transformer and each device in the data center, for providing a short-term uninterrupted power supply to the corresponding data center device during the generator startup process when any of the wind power generation systems stops generating power and the power grid is out of power; A generator is connected to one of the data centers and is used to supply power to the data center when any of the wind power generation systems stops generating electricity and the power grid is out of power.

7. A data center power supply system, characterized in that: include: A booster station and a plurality of data center power supply circuits according to any one of claims 1 to 6, wherein: One end of all the ring main units in each data center power supply circuit connected in series is connected to the main busbar of the booster station; The wind power generation system in any data center power supply circuit can supply power to data centers connected to other data center power supply circuits through the booster station.

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