Charging device

Abstract

Disclosed in the embodiments of the present application is a charging device. The charging device comprises a power conversion unit and a charging controller, wherein an input end of the power conversion unit is electrically connected to an output end of a first power supply; the first power supply is a power supply that supplies power to a computing device in a data center; the first power supply comprises an uninterruptible power supply (UPS) or a high-voltage direct-current (HVDC) power supply system; an output end of the power conversion unit is electrically connected to a device to be charged; the power conversion unit is used for converting an output voltage of the first power supply into a charging voltage of said device; the charging controller is electrically connected to the power conversion unit; and the charging controller is used for controlling the charging device to charge said device. Thus, the construction time of a charging pile power supply system can be shortened, thereby reducing the construction cost of the power supply system.

Description

Charging equipment

[0001] This application claims priority to Chinese patent application filed on June 17, 2024, with application number 202410781003.7 and entitled "Charging Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of power supply technology, and in particular to a charging device. Background Technology

[0003] A data center (DC) is a location that provides an operating environment for centrally located computing devices (such as terminal devices or electronic devices like servers).

[0004] Currently, considering the electric vehicle charging demand in or near data center parks, new charging stations can be built in or near these parks. However, building new charging stations in or near data center parks requires replanning power supply and backup power facilities to rebuild the power supply system for the charging stations, resulting in long construction times and high costs. Summary of the Invention

[0005] This application provides a charging device that can shorten the construction time of the charging pile power supply system and reduce the construction cost of the power supply system.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0007] On one hand, embodiments of this application provide a charging device, including a power conversion unit and a charging controller; wherein,

[0008] The input terminal of the power conversion unit is electrically connected to the output terminal of the first power supply; the first power supply is the power supply that powers the computing equipment in the data center; the first power supply includes an uninterruptible power supply (UPS) or a high-voltage DC power supply system (HVDC);

[0009] The output terminal of the power conversion unit is electrically connected to the device to be charged; the power conversion unit is used to convert the output voltage of the first power supply into the charging voltage of the device to be charged.

[0010] The charging controller is electrically connected to the power conversion unit; the charging controller is used to control the charging equipment to charge the device to be charged based on the charging information.

[0011] In the aforementioned charging equipment, the input terminal of the power conversion unit is electrically connected to the output terminal of the power supply that powers the computing devices in the data center. The charging controller then controls the power conversion unit to convert the power supply's output voltage into the charging voltage for the device being charged, thus charging the device. This utilizes the existing power supply in the data center to charge the device. On the one hand, it effectively utilizes the data center's power supply, maximizing its role and improving its utilization rate. On the other hand, it eliminates the need to redesign power supply and backup power facilities, reducing the time and cost required to build a power supply system.

[0012] In some possible implementations, the first power supply also includes a battery and a power controller; wherein the battery is a power supply device used in the data center to provide backup power for computing devices;

[0013] The power controller is electrically connected to the battery; the power controller is used to obtain battery power information.

[0014] The input terminal of the power conversion unit is electrically connected to the output terminal of the battery;

[0015] The charging controller is electrically connected to the power controller;

[0016] The charging controller is used to control the charging equipment to charge the device to be charged, including:

[0017] Battery power information is obtained based on the power controller;

[0018] When the power information meets the preset conditions, the charging device is controlled to charge the device to be charged.

[0019] In the above implementation method, it is ensured that the battery charges the device to be charged based on the battery when the battery power information meets the preset conditions. This not only ensures the power supply reliability of the data center, but also ensures the power supply reliability of the device to be charged.

[0020] In some possible implementations, where the first power supply includes a UPS and the UPS output is AC, the power conversion unit includes a first AC / DC conversion unit.

[0021] The input terminal of the first AC / DC conversion unit is electrically connected to the output terminal of the UPS;

[0022] The output terminal of the first AC / DC converter unit is electrically connected to the device to be charged.

[0023] The charging controller is electrically connected to the first AC / DC conversion unit; the charging controller is also used to control the first AC / DC conversion unit to convert the AC power output by the UPS into charging voltage.

[0024] In the above implementation, a scheme is provided to convert the AC power output of the UPS based on the first AC / DC conversion unit, which can realize the control of the output power so as to output a voltage with better power supply effect, thereby realizing reliable charging of the device to be charged.

[0025] In some possible implementations, where the first power supply includes a UPS and the UPS output is DC, or where the first power supply includes HVDC, the power conversion unit includes a first DC / DC conversion unit.

[0026] The input terminal of the first DC / DC converter unit is electrically connected to the output terminal of the UPS or the output terminal of the HVDC.

[0027] The output terminal of the first DC / DC converter unit is electrically connected to the device to be charged.

[0028] The charging controller is electrically connected to the first DC / DC converter unit; the charging controller is also used to control the first DC / DC converter unit to convert the DC power output from the UPS or the DC power output from the HVDC converter unit into a charging voltage.

[0029] In the above implementation, a scheme is provided that uses a first DC / DC converter unit to perform voltage conversion on the DC power output from the UPS or the DC power output from HVDC, which can control the output power so as to output a voltage with better power supply effect, thereby realizing reliable charging of the device to be charged.

[0030] In some possible implementations, where the first power supply also includes a battery, the power conversion unit further includes a second DC / DC conversion unit;

[0031] The input terminal of the second DC / DC converter unit is electrically connected to the output terminal of the battery.

[0032] The output terminal of the second DC / DC converter unit is electrically connected to the device to be charged.

[0033] The charging controller is electrically connected to the second DC / DC converter unit; the charging controller is also used to control the second DC / DC converter unit to convert the DC power output from the battery into a charging voltage.

[0034] In the above implementation, a scheme is provided to convert the DC power output from the battery into voltage based on a second DC / DC converter unit, which can control the output power to achieve a voltage with better power supply effect, thereby realizing reliable charging of the device to be charged.

[0035] In some possible implementations, the charging device also includes an input power distribution unit;

[0036] The input terminal of the input distribution unit is electrically connected to the output terminal of the first power supply.

[0037] The output terminal of the input power distribution unit is electrically connected to the input terminal of the power conversion unit.

[0038] In the above implementation, an input power distribution unit is set up to electrically connect the output terminal of the first power supply to the input terminal of the power conversion unit, thereby transmitting the electrical energy output by the battery to the power conversion unit.

[0039] In some possible implementations, the charging device also includes an output power distribution unit;

[0040] The input terminal of the output power distribution unit is electrically connected to the output terminal of the power conversion unit;

[0041] The output terminal of the power distribution unit is electrically connected to the device to be charged.

[0042] In the above implementation, an output power distribution unit is set up to transmit the electrical energy output by the power conversion unit to the device to be charged, thereby charging the device.

[0043] In some possible implementations, the charging device is an integrated charging pile or a charging host, with the output of the charging host electrically connected to one or more separate charging piles; each separate charging pile is used to charge one device to be charged.

[0044] The above implementation method supports the deployment of integrated charging piles or split charging piles in charging equipment.

[0045] In some possible implementations, the charging host is deployed inside the data center.

[0046] In the above implementation method, since the data center itself has a complete environmental control system, by centrally deploying the charging host inside the data center, the existing complete environmental control system can be effectively utilized for design and manufacturing inside the data center, which can effectively reduce design and manufacturing costs. At the same time, compared with designing and manufacturing outside the data center, it can also avoid unexpected situations caused by cable elongation (such as surge currents from lightning), effectively improving charging reliability.

[0047] In some possible implementations, the charging device also includes a second AC / DC conversion unit;

[0048] The input terminal of the second AC / DC converter is electrically connected to the second power supply; the second power supply is AC power from the power grid.

[0049] The output of the second AC / DC converter unit is electrically connected to the device to be charged.

[0050] The charging controller is electrically connected to the second AC / DC converter unit; the charging controller is also used to control the second AC / DC converter unit to convert the AC power from the grid into the charging voltage.

[0051] In the above implementation, a scheme is provided that uses a second AC / DC converter to convert the AC power output from the second power supply to a voltage, which can control the output power so as to output a voltage with better power supply effect, thereby realizing reliable charging of the device to be charged.

[0052] On the other hand, embodiments of this application provide a charging method applied to the aforementioned charging device, which includes a power conversion unit and a charging controller; wherein,

[0053] The input terminal of the power conversion unit is electrically connected to the output terminal of the first power supply; the first power supply is the power supply that powers the computing equipment in the data center; the first power supply includes an uninterruptible power supply (UPS) or a high-voltage DC power supply system (HVDC);

[0054] The output terminal of the power conversion unit is electrically connected to the device to be charged; the power conversion unit is used to convert the output voltage of the first power supply into the charging voltage of the device to be charged.

[0055] The charging controller is electrically connected to the power conversion unit;

[0056] The method includes:

[0057] The charging controller uses charging information to control the charging equipment to charge the device to be charged.

[0058] In the above technical solution, the input terminal of the power conversion unit is electrically connected to the output terminal of the power supply that powers the computing devices in the data center. This allows the charging controller to control the power conversion unit to convert the power supply's output voltage into the charging voltage for the device being charged, thus charging the device. In this way, utilizing the existing power supply in the data center to charge the device effectively utilizes the data center's power, maximizing its role and improving its utilization rate. Furthermore, it eliminates the need to redesign power supply and backup power facilities, reducing the time and cost required to construct a power supply system.

[0059] In some possible implementations, the first power supply also includes a battery and a power controller; wherein the battery is a power supply device used in the data center to provide backup power for computing devices;

[0060] The power controller is electrically connected to the battery; the power controller is used to obtain battery power information.

[0061] The input terminal of the power conversion unit is electrically connected to the output terminal of the battery;

[0062] The charging controller is electrically connected to the power controller;

[0063] The charging controller controls the charging equipment to charge the device to be charged, including:

[0064] The charging controller obtains the battery's power information based on the power controller;

[0065] When the power information meets the preset conditions, the charging controller controls the charging equipment to charge the device to be charged.

[0066] In the above implementation method, it is ensured that the battery charges the device to be charged based on the battery when the battery power information meets the preset conditions. This not only ensures the power supply reliability of the data center, but also ensures the power supply reliability of the device to be charged.

[0067] In some possible implementations, where the first power supply includes a UPS and the UPS output is AC, the power conversion unit includes a first AC / DC conversion unit.

[0068] The input terminal of the first AC / DC conversion unit is electrically connected to the output terminal of the UPS;

[0069] The output terminal of the first AC / DC converter unit is electrically connected to the device to be charged.

[0070] The charging controller is electrically connected to the first AC / DC converter unit;

[0071] The method also includes: the charging controller controlling the first AC / DC conversion unit to convert the AC power output by the UPS into a charging voltage.

[0072] In the above implementation, a scheme is provided to convert the AC power output of the UPS based on the first AC / DC conversion unit, which can realize the control of the output power so as to output a voltage with better power supply effect, thereby realizing reliable charging of the device to be charged.

[0073] In some possible implementations, where the first power supply includes a UPS and the UPS output is DC, or where the first power supply includes HVDC, the power conversion unit includes a first DC / DC conversion unit.

[0074] The input terminal of the first DC / DC converter unit is electrically connected to the output terminal of the UPS or the output terminal of the HVDC.

[0075] The output terminal of the first DC / DC converter unit is electrically connected to the device to be charged.

[0076] The charging controller is electrically connected to the first DC / DC converter unit;

[0077] The method further includes: the charging controller controlling the first DC / DC converter to convert the DC power output from the UPS or the DC power output from the HVDC into a charging voltage.

[0078] In the above implementation, a scheme is provided that uses a first DC / DC converter unit to perform voltage conversion on the DC power output from the UPS or the DC power output from HVDC, which can control the output power so as to output a voltage with better power supply effect, thereby realizing reliable charging of the device to be charged.

[0079] In some possible implementations, where the first power supply also includes a battery, the power conversion unit further includes a second DC / DC conversion unit;

[0080] The input terminal of the second DC / DC converter unit is electrically connected to the output terminal of the battery.

[0081] The output terminal of the second DC / DC converter unit is electrically connected to the device to be charged.

[0082] The charging controller is electrically connected to the second DC / DC converter unit;

[0083] The method further includes: the charging controller controlling the second DC / DC converter unit to convert the DC power output from the battery into a charging voltage.

[0084] In the above implementation, a scheme is provided to convert the DC power output from the battery into voltage based on a second DC / DC converter unit, which can control the output power to achieve a voltage with better power supply effect, thereby realizing reliable charging of the device to be charged.

[0085] In some possible implementations, the charging device also includes a second AC / DC conversion unit;

[0086] The input terminal of the second AC / DC converter is electrically connected to the second power supply; the second power supply is AC power from the power grid.

[0087] The output of the second AC / DC converter unit is electrically connected to the device to be charged.

[0088] The charging controller is electrically connected to the second AC / DC converter unit;

[0089] The method also includes: the charging controller controlling the second AC / DC conversion unit to convert the AC power from the power grid into a charging voltage.

[0090] In the above implementation, a scheme is provided that uses a second AC / DC converter to convert the AC power output from the second power supply to a voltage, which can control the output power so as to output a voltage with better power supply effect, thereby realizing reliable charging of the device to be charged.

[0091] On the other hand, embodiments of this application provide a charging controller, which includes a processor and a memory, the processor and the memory being coupled. The memory stores computer program instructions, and the processor invokes the computer program instructions stored in the memory to execute the charging method shown in the above embodiments.

[0092] On the other hand, embodiments of this application provide a computer-readable storage medium storing computer program instructions for causing a charging controller to perform the charging method as shown in the above embodiments.

[0093] On the other hand, embodiments of this application provide a computer program product, including computer program instructions, which, when executed on a charging controller, cause the charging controller to perform the charging method as shown in the above embodiments. Attached Figure Description

[0094] Figure 1 is a schematic diagram of the architecture of a charging device provided in an embodiment of this application;

[0095] Figure 2 is a schematic diagram of the architecture of another charging device provided in an embodiment of this application;

[0096] Figure 3 is a schematic diagram of the architecture of a power conversion unit provided in an embodiment of this application;

[0097] Figure 4 is a schematic diagram of the architecture of another power conversion unit provided in an embodiment of this application;

[0098] Figure 5 is a schematic diagram of the architecture of another charging device provided in an embodiment of this application;

[0099] Figure 6 is a schematic diagram of the architecture of another charging device provided in an embodiment of this application;

[0100] Figure 7 is a schematic diagram of the architecture of another charging device provided in an embodiment of this application;

[0101] Figure 8 is a schematic diagram of the architecture of a UPS-based charging device provided in an embodiment of this application;

[0102] Figure 9 is a schematic diagram of the architecture of another UPS-based charging device provided in an embodiment of this application;

[0103] Figure 10 is a schematic diagram of the architecture of a charging device based on HVDC provided in an embodiment of this application;

[0104] Figure 11 is a schematic diagram of the architecture of another HVDC-based charging device provided in an embodiment of this application;

[0105] Figure 12 is a schematic diagram of the hardware structure of a charging controller provided in an embodiment of this application;

[0106] Figure 13 is a schematic flowchart of a charging method provided in an embodiment of this application;

[0107] Figure 14 is a schematic flowchart of a charging method provided in an embodiment of this application;

[0108] Figure 15 is a schematic diagram of the structure of a charging device provided in an embodiment of this application. Detailed Implementation

[0109] In the description of the embodiments in this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, "at least one" refers to one or more, and "multiple" refers to two or more. The terms "first," "second," etc., do not limit the quantity or execution order, and the terms "first," "second," etc., do not necessarily imply that they are different.

[0110] It should be noted that in the embodiments of this application, the words "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0111] This application provides a charging device that can be applied inside or outside a data center. A data center refers to a building that provides an operating environment for centrally located computing devices. It can be understood that a data center is a place where large amounts of data are collected, stored, processed, distributed, and accessed on the network infrastructure of computing devices.

[0112] For example, the charging equipment can be a charging pile built inside or outside a data center, such as a DC fast charging pile. In some possible implementations, the charging equipment provided in this application embodiment can be applied to scenarios where new charging piles are built in or near a data center campus.

[0113] The charging device provided in this application connects the input terminal of a power conversion unit to the output terminal of a power supply that powers computing devices in a data center. This allows the charging controller to control the power conversion unit to convert the power supply's output voltage into a charging voltage for the device being charged. By utilizing the existing power supply in the data center, the device can be charged effectively. This improves the utilization rate of the data center's power supply and eliminates the need for redesigning power supply and backup facilities, reducing the time and cost required to build a power supply system.

[0114] Figure 1 is a schematic diagram of the architecture of a charging device provided in an embodiment of this application. Referring to Figure 1, the charging device includes: a power conversion unit 101 and a charging controller 102.

[0115] The input terminal of the power conversion unit 101 is electrically connected to the output terminal of the first power supply 103. The output terminal of the power conversion unit 101 is electrically connected to the device to be charged 104. The power conversion unit 101 is used to convert the output voltage of the first power supply 103 into the charging voltage of the device to be charged 104.

[0116] In some possible implementations, the input terminal of the power conversion unit 101 is electrically connected to the output terminal of the first power supply 103 via a high-voltage DC cable. This provides a method for connecting the input terminal of the power conversion unit 101 and the output terminal of the first power supply 103 using a high-voltage DC cable. Furthermore, it enables high-voltage DC-based charging solutions, such as high-voltage fast charging solutions based on charging piles. High-voltage fast charging refers to providing high-power charging capabilities in a short period, thereby shortening charging time and improving charging efficiency.

[0117] In some possible implementations, the output of the power conversion unit 101 is electrically connected to the device 104 to be charged via a charging gun. For example, the charging gun can be a DC charging gun, such as an industry-standard DC charging gun, and can be air-cooled or liquid-cooled. In this way, the electrical energy output by the power conversion unit 101 can be transferred to the device 104 to be charged using the charging gun, thereby realizing the charging of the device 104.

[0118] The charging controller 102 is electrically connected to the power conversion unit 101. The charging controller 102 is used to control the charging device to charge the device 104. For example, the charging controller 102 is used to control the power conversion unit 101 in the charging device to convert the output voltage of the first power supply 103 into the charging voltage of the device 104, thereby charging the device 104.

[0119] The first power supply 103 is a power supply for powering computing devices in a data center. These computing devices can be servers.

[0120] Figure 2 is a schematic diagram of the architecture of another charging device provided in an embodiment of this application. Referring to Figure 2, the first power supply 103 may include a main power supply 1031, such as an uninterruptible power supply (UPS) or a high voltage DC (HVDC) power supply system. It should be noted that the UPS supports outputting AC or DC power. The HVDC supports outputting DC power. In some embodiments, the charging controller 102 may be specifically used to control the main power supply 1031 to charge the device 104 to be charged.

[0121] Referring to Figure 2, the first power supply 103 may also include a battery 1032 and a power controller 1033.

[0122] Battery 1032 is a power supply device used in data centers to provide backup power for computing devices, such as a backup battery pack. It should be understood that battery 1032 is used to power computing devices in the data center in the event of a mains power outage.

[0123] The power controller 1033 is electrically connected to the battery 1032, and the power controller 1033 is used to obtain the power information of the battery 1032. For example, the power controller 1033 may be a battery management unit.

[0124] The input terminal of the power conversion unit 101 is electrically connected to the output terminal of the battery 1032. In some embodiments, the power conversion unit 101 is used to convert the output voltage of the battery 1032 into the charging voltage of the device to be charged 104.

[0125] In some embodiments, the charging controller 102 may be specifically used to control the battery 1032 to charge the device 104 to be charged.

[0126] The charging controller 102 is electrically connected to the power controller 1033. Specifically, the charging controller 102 is used to: obtain the power information of the battery 1032 based on the power controller 1033; and control the charging device to charge the device 104 to be charged when the power information meets preset conditions.

[0127] In some possible implementations, the power controller 1033 can be connected to the charging controller 102 via a communication cable for communication. In some possible implementations, the charging controller 102 can be provided with a communication interface, and the power controller 1033 is connected to the communication interface of the charging controller 102 via a cable. Specifically, by providing a communication interface in the charging controller 102, the power controller 1033 can be electrically connected via a cable through this communication interface.

[0128] For example, if the first power supply 103 is a UPS, the battery 1032 can be a UPS battery pack. Alternatively, if the first power supply is an HVDC, the battery 1032 can be an HVDC battery pack. Thus, it supports charging the device 104 to be charged using either a UPS-based battery pack or an HVDC-based battery pack.

[0129] It should be noted that the battery type of the UPS battery pack and the HVDC battery pack can be the same or different. It is also worth noting that in some possible implementations, battery 1032 can be other types of battery packs, which is not limited in this application embodiment.

[0130] The preset condition can be the backup power requirements of the data center. In some possible implementations, the backup power requirements of the data center refer to the minimum power requirements needed to power the computing devices in the data center. For example, the backup power requirements of the data center can be determined by setting a minimum power threshold to determine whether the battery 1032 supports external power supply. In other possible implementations, the backup power requirements of the data center can be determined based on the charging requirements indicated by the charging information of the device to be charged 104 and the equipment load status of the data center to determine whether the battery 1032 supports external power supply.

[0131] It should be understood that if the power information of battery 1032 meets the backup power requirements of the data center, that is, if the power information of battery 1032 is greater than or equal to the minimum power requirement for powering each computing device in the data center, then battery 1032 can be used to charge device 104. For example, when the power information of battery 1032 meets the backup power requirements of the data center, charging controller 102 controls battery 1032 to charge device 104, such as controlling battery 1032 to charge device 104 based on charging information.

[0132] In the above embodiments, through communication between the charging controller 102 and the power controller 1033, it is ensured that the power information of the battery 1032 meets the backup power requirements of the data center, and the charging device 104 is charged based on the battery 1032. This not only ensures the power supply reliability of the data center, but also ensures the power supply reliability of the charging device 104.

[0133] In some possible implementations, the charging controller 102 can determine the available power supply based on the battery 1032's power information and the data center's backup power requirements. This available power supply is the amount of power that the battery 1032 is allowed to supply to the device 104 to be charged. Then, based on this available power supply, the controller controls the battery 1032 to charge the device 104.

[0134] It should be noted that the backup power requirements of a data center change in real time. For example, they may vary depending on the data center's power supply time (e.g., high power demand during the day and low power demand at night), the type of equipment being powered (e.g., high power demand for devices with high computing power and low power demand for devices with low computing power), or other factors. For instance, the charging controller 102 can determine the available power supply in real time based on the data center's changing backup power requirements, and then control the battery 1032 to charge the device 104 to be charged based on the real-time determined available power supply.

[0135] Regarding the power information of battery 1032, in some possible implementations, the process by which power controller 1033 obtains the power information of battery 1032 can be as follows: power controller 1033 obtains the battery pack capacity (e.g., 30 kWh) and state of charge (SOC) of battery 1032, determines the product of battery pack capacity and SOC as the power information of battery 1032. Here, SOC refers to the available state of remaining charge in the battery, generally expressed as a percentage.

[0136] In this embodiment, when the charging device is connected to the device to be charged 104, the charging controller 102 is specifically configured to: send a power query signal to the power controller 1033, the power query signal being used to query the power information of the battery 1032; receive the power information of the battery 1032 returned by the power controller 1033; and if the power information of the battery 1032 meets preset conditions, control the charging device to supply power to the device to be charged 104. The charging controller 102 can detect whether the charging device is connected to the device to be charged 104 via a handshake protocol.

[0137] Based on the aforementioned charging equipment, a solution can be implemented to charge the external equipment 104 using the battery 1032 inside the data center. On the one hand, this effectively utilizes the data center's battery 1032, fully leveraging its capabilities and improving its utilization rate. On the other hand, it eliminates the need for replanning power supply and backup power facilities, reducing the time and cost of constructing a power supply system (such as a charging pile power supply system).

[0138] Referring to Figure 2, the first power supply 103 may also include a battery charger 1034.

[0139] The battery charger 1034 is electrically connected to the battery 1032 and is used to charge the battery 1032.

[0140] In some possible implementations, the battery charger 1034 can be integrated with the main power supply 1031 as a whole, such as in an HVDC system. Alternatively, the battery charger 1034 can be a separately deployed unit within the first power supply 103, such as a battery charger deployed separately within a UPS. It is understood that in a UPS / HVDC power supply scenario, the output of the UPS / HVDC is used to power computing devices in the data center and also to charge the battery 1032; therefore, in an HVDC power supply scenario, the battery charger 1034 can be integrated with the main power supply 1031 (UPS / HVDC) as a whole.

[0141] The input terminal of the power conversion unit 101 is electrically connected to the output terminal of the battery charger 1034. In some embodiments, the power conversion unit 101 is used to convert the output voltage of the battery charger 1034 into the charging voltage of the device to be charged 104.

[0142] In some embodiments, the charging controller 102 may be specifically used to control the battery charger 1034 to charge the device 104 to be charged.

[0143] Based on the aforementioned charging equipment, a solution can be implemented to charge the device 104 located outside the data center using batteries inside the data center. On one hand, this effectively utilizes the data center's batteries, maximizing their effectiveness and improving battery utilization. On the other hand, it eliminates the need to replan power supply and backup power facilities, reducing the time and cost required to construct a power supply system (such as a charging pile power supply system). In some embodiments, the charging controller 102 is further configured to acquire charging information of the device 104, including at least one of voltage, current, and power. Then, based on the charging information, the charging equipment is controlled to charge the device 104.

[0144] The charging information of the device to be charged 104 is used to indicate the charging requirements of the device to be charged 104, such as at least one of voltage requirements, current requirements and power requirements.

[0145] In some possible implementations, the charging information of the device to be charged 104 can be in the form of charging curves, such as current curves and voltage curves. The current curve can be a curve showing the change of current in the battery pack of the device to be charged 104 over time during the charging process, used to characterize the current requirement of the device to be charged 104. The voltage curve can be a curve showing the change of voltage in the battery pack of the device to be charged 104 over time during the charging process, used to characterize the voltage requirement of the device to be charged 104. It is worth noting that the charging information can also be in other forms, such as numerical ranges. This application embodiment does not limit this. For example, the charging requirement of the device to be charged 104 can be: first constant current charging, and then constant voltage charging when the voltage gradually increases to a preset voltage threshold (e.g., 700V).

[0146] In some possible implementations, after the charging controller 102 obtains the charging information of the device to be charged 104, it is specifically used to: control the power conversion unit 101 to perform voltage conversion on the output voltage of the first power supply 103, so as to convert the output voltage of the first power supply 103 into the charging voltage of the device to be charged 104, thereby charging the device to be charged 104.

[0147] For example, there can be multiple power conversion units 101 connected in parallel. In some possible implementations, the charging controller 102 controls a preset number of power conversion units 101 to perform voltage conversion on the output voltage of the first power supply 103, thereby converting the output voltage of the first power supply 103 into the charging voltage of the device to be charged 104.

[0148] Thus, by controlling the output power of different numbers of power conversion units 101, different voltage output capabilities can be achieved, thereby realizing precise control of the output power to output a voltage with better power supply effect, thereby realizing reliable charging of the device to be charged 104.

[0149] In the above embodiments, considering that the battery capacity or voltage level of different devices 104 to be charged may vary greatly, a power conversion unit 101 is deployed in the charging device, and then the charging controller 102 controls the power conversion unit 101 to convert the output voltage of the first power supply 103 according to the charging information of the device 104 to achieve precise control of the output voltage or output current, such as ensuring that the deviation of the output voltage and output current is less than 1%, thereby achieving reliable charging of the device 104 to be charged.

[0150] For example, when the first power supply 103 includes a UPS and the UPS outputs AC power, the power conversion unit 101 may include a first AC / DC conversion unit, such as one or more AC / DC conversion units. The AC / DC conversion unit is used to convert AC power to DC power and perform voltage conversion on the converted DC power.

[0151] The input terminal of the first AC / DC converter is electrically connected to the output terminal of the UPS. The output terminal of the first AC / DC converter is electrically connected to the device to be charged 104. The charging controller 102 is electrically connected to the first AC / DC converter. In this embodiment, the charging controller 102 is also used to control the first AC / DC converter to convert the AC power output from the UPS into a charging voltage.

[0152] In the above example, a scheme is provided to convert the AC power output of the UPS based on the first AC / DC conversion unit, which can realize the control of the output power so as to output a voltage with better power supply effect, thereby realizing the reliable charging of the device 104 to be charged.

[0153] As another example, when the first power supply 103 includes a UPS and the UPS outputs DC power, or when the first power supply 103 includes HVDC, the power conversion unit 101 may include a first DC / DC conversion unit, such as one or more DC / DC conversion units. The DC / DC conversion unit is used to perform voltage conversion on the DC power.

[0154] The input terminal of the first DC / DC converter is electrically connected to the output terminal of the UPS or the output terminal of the HVDC converter. The output terminal of the first DC / DC converter is electrically connected to the device to be charged 104. The charging controller 102 is electrically connected to the first DC / DC converter. In this embodiment, the charging controller 102 is further used to control the first DC / DC converter to convert the DC power output from the UPS or the DC power output from the HVDC converter into a charging voltage.

[0155] In the above example, a scheme is provided to perform voltage conversion on the DC power output from the UPS or the DC power output from the HVDC based on the first DC / DC conversion unit, which can realize the control of the output power so as to output a voltage with better power supply effect, thereby realizing the reliable charging of the device to be charged 104.

[0156] As another example, when the first power supply 103 also includes a battery 1032, the power conversion unit 101 also includes a second DC / DC conversion unit, such as one or more DC / DC conversion units.

[0157] The input terminal of the second DC / DC converter is electrically connected to the output terminal of the battery 1032. The output terminal of the second DC / DC converter is electrically connected to the device to be charged 104. The charging controller 102 is electrically connected to the second DC / DC converter. In this embodiment, the charging controller 102 is also used to control the second DC / DC converter to convert the DC power output from the battery 1032 into a charging voltage.

[0158] In the above example, a scheme is provided to convert the DC power output from the battery 1032 based on the second DC / DC converter unit, which can realize the control of the output power so as to output a voltage with better power supply effect, thereby realizing the reliable charging of the device to be charged 104.

[0159] In some possible implementations, when the charging information of the device 104 indicates high-power charging, the device 104 can be charged using both the main power supply 1031 and the battery 1032 in the first power supply 103. In other possible implementations, when the charging information of the device 104 indicates low-power charging, the device 104 can be charged using the main power supply 1031 in the first power supply 103. Alternatively, when the charging information of the device 104 indicates low-power charging, the device 104 can be charged using the battery 1032 in the first power supply 103.

[0160] In some possible implementations, when the charging information of the device to be charged 104 indicates high-power charging, the device to be charged 104 can be charged together based on the main power supply 1031, battery 1032 and battery charger 1034 in the first power supply 103.

[0161] In addition, in some possible implementations, if the power information of battery 1032 does not meet the preset conditions (such as the backup power requirements of a data center), then other power sources in the first power supply 103 other than battery 1032 (such as main power supply 1031, battery charger 1034) are controlled to charge the device 104 to be charged.

[0162] Thus, by determining whether the power information of battery 1032 meets the backup power requirements of the data center, the main power supply 1031 can be used to charge the device 104 to be charged even if the power information of battery 1032 does not meet the backup power requirements of the data center, thereby ensuring the charging reliability of the device 104 to be charged.

[0163] For example, Figure 3 is a schematic diagram of the architecture of a power conversion unit provided in an embodiment of this application. Referring to Figure 3, an architecture based on multiple DC / DC conversion units is shown, wherein the multiple DC / DC conversion units are connected in parallel.

[0164] For example, Figure 4 is a schematic diagram of another power conversion unit architecture provided in an embodiment of this application. Referring to Figure 4, an architecture based on multiple AC / DC conversion units and multiple DC / DC conversion units is shown, wherein the multiple AC / DC conversion units are connected in parallel, and the multiple DC / DC conversion units are connected in parallel. When the power conversion unit 101 includes multiple AC / DC conversion units and multiple DC / DC conversion units, the number of input power distribution units 105 can be two, such as an AC power input power distribution unit and a DC power input power distribution unit, wherein the AC power input power distribution unit is used to connect multiple AC / DC conversion units to transmit AC power to the multiple AC / DC conversion units, and the DC power input power distribution unit is used to connect multiple DC / DC conversion units to transmit DC power to the multiple DC / DC conversion units.

[0165] For example, Figure 5 is a schematic diagram of the architecture of another charging device provided in an embodiment of this application. Referring to Figure 5, the charging device further includes an input power distribution unit 105. The input terminal of the input power distribution unit 105 is electrically connected to the output terminal of the first power supply 103. The output terminal of the input power distribution unit 105 is electrically connected to the input terminal of the power conversion unit 101.

[0166] In this embodiment of the application, an input power distribution unit 105 is provided so that the output terminal of the first power supply 103 is electrically connected to the input terminal of the power conversion unit 101, thereby transmitting the electrical energy output by the first power supply 103 to the power conversion unit 101.

[0167] For example, the input power distribution unit 105 may be an input power distribution switch. The input power distribution unit 105 is also used to disconnect the circuit in the event of a circuit malfunction. For example, in some possible implementations, the input power distribution unit 105 may disconnect in the event of a fault or maintenance to disconnect the circuit and thus achieve a circuit protection function.

[0168] In some possible implementations, referring to Figure 5, the charging device may further include an output power distribution unit 106. The input terminal of the output power distribution unit 106 is electrically connected to the output terminal of the power conversion unit 101. The output terminal of the output power distribution unit 106 is electrically connected to the device 104 to be charged.

[0169] In this embodiment of the application, an output power distribution unit 106 is provided so that the output terminal of the power conversion unit 101 is electrically connected to the input terminal of the device to be charged 104, thereby transmitting the electrical energy output by the power conversion unit 101 to the device to be charged 104, thereby charging the device to be charged 104.

[0170] For example, the output power distribution unit 106 may be an output power distribution switch. The output power distribution unit 106 is also used to disconnect the circuit in the event of a circuit malfunction. For example, in some possible implementations, the output power distribution unit 106 may disconnect in the event of a fault or maintenance to disconnect the circuit and thus achieve a circuit protection function.

[0171] In this embodiment, the charging device can be an integrated charging pile or a charging host. Correspondingly, the device to be charged 104 can be an electric vehicle.

[0172] In this context, an integrated charging pile refers to a charging pile that integrates the charging controller 102, input power distribution unit 105, power conversion unit 101, and output power distribution unit 106 into a single unit. The output of the charging host is electrically connected to one or more separate charging piles, each of which is used to charge one device. The charging host refers to a unit that integrates the charging controller 102, input power distribution unit 105, power conversion unit 101, and output power distribution unit 106, and is deployed separately from the separate charging piles. This allows for the deployment of either integrated or separate charging piles within the charging equipment.

[0173] It should be noted that when the charging equipment is an integrated charging pile, the charging equipment (integrated charging pile) can be deployed outside the data center.

[0174] It should also be noted that when the charging device is a charging host, the charging device (charging host) can be deployed outside the data center. Alternatively, when the charging device is a charging host, the charging host can also be deployed inside the data center. Specifically, the components of the charging host, such as the power conversion unit 101, charging controller 102, input power distribution unit 105, and output power distribution unit 106, can be centrally deployed inside the data center, while one or more split-type charging piles electrically connected to the output of the charging host can be deployed outside the data center.

[0175] In some embodiments, when the charging equipment is deployed outside the data center, an output power distribution unit 107 also needs to be deployed inside the data center. For example, Figure 6 is a schematic diagram of the architecture of another charging device provided in an embodiment of this application. Referring to Figure 6, the input terminal of the output power distribution unit 107 is electrically connected to the output terminal of the first power supply 103, and the output terminal of the output power distribution unit 107 is electrically connected to the input power distribution unit 105 of the charging device. In this embodiment, the output power distribution unit 107 is used to transmit the electrical energy output by the first power supply 103 to the input power distribution unit 105 of the charging device, thereby charging the device 104 to be charged.

[0176] The output power distribution unit 107 can be connected to the input power distribution unit 105 of the charging equipment via a high-voltage DC cable, thereby providing power to the device 104 outside the data center. Thus, by deploying the output power distribution unit 107 inside the data center, the power output from the first power supply 103 can be transmitted to the input power distribution unit 105 of the charging equipment, ensuring the reliability of the charging equipment's power supply.

[0177] For example, the output power distribution unit 107 may be an output power distribution switch. The output power distribution unit 107 is also used to disconnect the circuit in the event of a circuit malfunction. For example, in some possible implementations, the output power distribution unit 107 may disconnect in the event of a fault or maintenance to disconnect the circuit and thus achieve a circuit protection function.

[0178] In some possible implementations, the output power distribution unit 107 may also include a lightning surge protection circuit to prevent surge currents from lightning. This lightning surge protection circuit is a circuit that provides safety protection for the output power distribution unit 107, capable of absorbing surge currents (such as peak currents) to ensure that the output power distribution unit 107 is not damaged. Thus, considering the long distance of the high-voltage DC cable connected to the output power distribution unit 107, adding a lightning surge protection circuit within the output power distribution unit 107 can effectively prevent surge currents from lightning, thereby ensuring the safety of the power supply system.

[0179] In the above embodiment, the output power distribution unit 107, the input power distribution unit 105, the power conversion unit 101 and the output power distribution unit 106 are connected in sequence to transmit the electrical energy output by the first power supply 103 to the device to be charged 104 in sequence through the output power distribution unit 107, the input power distribution unit 105, the power conversion unit 101 and the output power distribution unit 106.

[0180] It should be noted that when the power conversion unit 101, charging controller 102, input power distribution unit 105, and output power distribution unit 106 are centrally deployed inside the data center, the output power distribution unit 107 does not need to be deployed inside the data center. It is understood that by centrally deploying the power conversion unit 101, charging controller 102, input power distribution unit 105, and output power distribution unit 106 inside the data center, there is no need to connect the input power distribution unit 105 and power conversion unit 101 via high-voltage DC cables, and therefore, there is no need to deploy the output power distribution unit 107.

[0181] In the above embodiments, by centrally deploying the power conversion unit 101, charging controller 102, input power distribution unit 105, and output power distribution unit 106 inside the data center, since the data center itself has a complete environmental control system, by centrally deploying the power conversion unit and charging controller inside the data center, the existing complete environmental control system can be effectively utilized for design and manufacturing inside the data center, which can effectively reduce design and manufacturing costs. At the same time, compared with designing and manufacturing outside the data center, it can also effectively improve power supply reliability.

[0182] Regarding the process of the charging controller 102 acquiring the charging information of the device 104 to be charged, when the charging device is an integrated charging pile, the charging controller 102 can acquire the charging information of the device 104 to be charged through communication and interaction with the battery management system (BMS) of the device 104 to be charged.

[0183] The charging gun can communicate with the device to be charged 104 via a communication cable, enabling the charging controller 102 of the charging device to access the battery management system of the device to be charged 104 via the communication cable. For example, the communication cable can be a controller area network (CAN) bus.

[0184] When the charging device is a charging host, the split-type charging pile electrically connected to the output end of the charging host includes a charging pile control unit, which is used to acquire charging information of the device to be charged. The charging controller 102 is electrically connected to the charging pile control unit. In some possible implementations, the charging controller 102 can be communicatively connected to the charging pile control unit for communication. Specifically, the charging controller 102 is used to acquire charging information of the device 104 to be charged, based on the charging pile control unit of the split-type charging pile electrically connected to the output end of the charging host.

[0185] For example, the charging controller 102 can send an information acquisition request to the charging pile control unit. This information acquisition request is used to request the acquisition of the charging information of the device to be charged 104, and then receive the charging information of the device to be charged 104 returned by the charging pile control unit. The charging pile control unit can acquire the charging information of the device to be charged 104 through communication interaction with the BMS of the device to be charged 104.

[0186] For example, Figure 7 is a schematic diagram of the architecture of another charging device provided in an embodiment of this application. Referring to Figure 7, the charging device is also electrically connected to a second power supply 108. The second power supply 108 is AC power from the power grid, such as mains power.

[0187] In some possible implementations, the device 104 to be charged can also be charged based on the second power supply 108. For example, the charging controller 102 is also configured to: if the electrical energy output by the first power supply 103 does not meet the charging information of the device 104 to be charged, then charge the device 104 to be charged based on the first power supply 103 and the second power supply 108 together.

[0188] In the above embodiments, a scheme is provided for charging the device 104 to be charged based on the joint use of a first power supply 103 and a second power supply 108. Specifically, by determining whether the electrical energy output from the first power supply 103 meets the charging requirements of the device 104, if the electrical energy output from the first power supply 103 does not meet the charging requirements of the device 104, the second power supply 108 can be used to charge the device 104, thereby ensuring the reliability of the power supply to the device 104.

[0189] For example, when charging the device 104 together with the second power supply 108, the charging device also includes a second AC / DC conversion unit, such as one or more AC / DC conversion units.

[0190] The input terminal of the second AC / DC converter is electrically connected to the second power supply 108. The output terminal of the second AC / DC converter is electrically connected to the device to be charged 104. The charging controller 102 is electrically connected to the second AC / DC converter. The charging controller 102 is also used to control the second AC / DC converter to convert the AC power from the power grid into a charging voltage.

[0191] It should be noted that the second power supply 108 outputs AC power. In the above example, a scheme is provided to convert the AC power output by the second power supply 108 based on the second AC / DC conversion unit, which can realize the control of the output power so as to output a voltage with better power supply effect, thereby realizing the reliable charging of the device to be charged 104.

[0192] In a scenario where the device 104 is being charged based on the second power supply 108, the charging controller 102 can be used to control the second AC / DC converter unit to output AC power from the power grid. Specifically, when converting the AC power from the power grid, considering the relatively stable characteristics of the power grid, the AC power output from the power grid can be delivered at full power, thereby achieving high-power fast charging.

[0193] For high-power DC fast charging piles, the output power of the first power supply 103 may not be able to support the fast charging requirements (such as fast charging power) of the high-power DC fast charging pile. In this case, it can be combined with the second power supply 108 to charge the device 104 to be charged, so that part of the power comes from the mains power grid and part of the power comes from the first power supply 103, such as the main power supply 1031 and the battery 1032, thus enabling fast charging.

[0194] It should be noted that when the first power supply 103 and the second power supply 108 jointly charge the device 104, the output voltage of the AC / DC converter unit and the output voltage of the DC / DC converter unit are the same to ensure that the output voltages are both the charging voltage for the device 104. In some possible implementations, the output current of the AC / DC converter unit and the output current of the DC / DC converter unit can be flexibly adjusted according to the system energy. For example, the output current can be adaptively adjusted according to factors such as changes in electricity prices, charging time, or the charging requirements of different vehicle models.

[0195] Furthermore, the charging controller 102 is also used to: during the charging process of the device 104 based on the battery 1032, if the power level of the battery 1032 is lower than a preset power threshold, control the power conversion unit 101 to stop outputting power. Thus, by determining whether the power level of the battery 1032 is lower than the preset power threshold, it is possible to ensure that power output stops when the battery 1032's power level is insufficient to continue providing energy, thereby preventing the battery 1032 from becoming depleted.

[0196] In some possible implementations, the device 104 can be charged by first charging at high power quickly, and then reducing the power when the preset power requirement of the device to be charged (such as 80% power) is reached.

[0197] For example, in the initial stage of charging the device 104, the charging controller 102 can control the power conversion unit 101 to output the input electrical energy at full power to achieve high-power fast charging. When the power of the device 104 reaches the preset power requirement, the charging controller 102 can control the power conversion unit 101 to perform voltage conversion on the input electrical energy to reduce the power and thus output electrical energy with a lower voltage.

[0198] For example, in the initial stage of charging the device 104, the charging controller 102 can charge the device 104 using both the first power supply 103 and the second power supply 108 to achieve high-power fast charging. When the device 104 reaches a preset power requirement, the charging controller 102 can charge the device 104 using at least one of the main power supply 1031, battery 1032, battery charger 1034 in the first power supply 103, and the second power supply 108, thereby outputting electrical energy at a lower voltage.

[0199] The architecture of a UPS-based charging device will be described below using an integrated charging pile as an example, based on Figure 8. For example, Figure 8 is a schematic diagram of the architecture of a UPS-based charging device provided in an embodiment of this application. Referring to Figure 8, the left side of the dashed line represents the interior of the data center, including a first power supply (such as a UPS), an output power distribution unit, and computing devices. The right side of the dashed line represents the exterior of the data center, including the integrated charging pile and the device to be charged.

[0200] The primary power supply can be a UPS, which contains a UPS main unit (UPS power supply), battery charger, power controller, and battery pack. The integrated charging station combines the charging controller, input power distribution unit, power conversion unit, and output power distribution unit into a single unit.

[0201] Regarding UPS (Uninterruptible Power Supply), within a data center, a UPS can stabilize the AC power output from the mains and supply it to the computing equipment, thus acting as an AC voltage regulator. Simultaneously, the UPS can convert the AC power output from the mains to DC power via a battery charger to charge the battery pack. When the mains power output is abnormal (such as overvoltage, undervoltage, power outage, frequency anomalies, etc.), the UPS can convert the DC power output from the battery pack back to AC power to continue supplying the computing equipment, providing short-term backup power and ensuring the reliability of the data center's power supply.

[0202] In UPS-based charging equipment, the relationship between the UPS and the battery pack can be one-to-one, meaning one UPS unit corresponds to one battery pack. When the charging station is an integrated charging station, one UPS unit can support one integrated charging station, thus enabling one battery pack to support one integrated charging station. It is worth noting that in some other possible implementations, the relationship between the UPS and the battery pack can also be one-to-many, meaning one UPS unit corresponds to multiple battery packs. This application does not limit this aspect.

[0203] For example, when the integrated charging pile is connected to the device to be charged, the charging controller is used to: obtain the charging information of the device to be charged and obtain the power information of the UPS battery pack; when the power information of the UPS battery pack meets the preset conditions, based on the charging information, control the first power supply (such as at least one of the UPS host or battery pack) to supply power to the integrated charging pile.

[0204] Based on the charging equipment shown in Figure 8, a solution has been implemented that uses the UPS host and battery pack inside the data center to charge the integrated charging pile outside the data center. On the one hand, it can effectively utilize the power supply in the data center, give full play to the role of the power supply in the data center, and improve the utilization rate of the power supply in the data center. On the other hand, it eliminates the need to replan the power supply facilities and backup power facilities, reducing the time and cost required to build the power supply system.

[0205] The architecture of a UPS-based charging device will be described below, taking the charging host as an example, based on Figure 9. For example, Figure 9 is a schematic diagram of the architecture of another UPS-based charging device provided in an embodiment of this application.

[0206] Referring to Figure 9(9-1), a deployment method for charging equipment is shown. The left side of the dashed line represents the interior of the data center, including the primary power supply (such as a UPS), output power distribution unit, and computing equipment. The right side of the dashed line represents the exterior of the data center, including the charging host (including a charging controller, input power distribution unit, power conversion unit, and output power distribution unit), multiple split-type charging piles connected to the charging host, and devices to be charged.

[0207] Referring to Figure 9(9-2), another deployment method for charging equipment is shown. The left side of the dashed line represents the interior of the data center, including the primary power supply (such as a UPS), computing devices, and the charging host. The right side of the dashed line represents the exterior of the data center, including multiple split-type charging piles connected to the charging host and the devices to be charged.

[0208] Thus, by deploying the charging host inside the data center, which has a complete environmental control system that can centrally manage power equipment and environmental variables, the design and manufacture of the charging equipment can effectively utilize the indoor working requirements supported by the existing environmental control system. Compared to designing and manufacturing the charging equipment outside the data center according to outdoor working requirements, this effectively reduces the design and manufacturing costs of the charging equipment. Furthermore, compared to designing and manufacturing outside the data center, it also avoids cable loss and unexpected situations caused by cable elongation (such as surge currents from lightning), effectively improving power supply reliability.

[0209] In the charging host, the charging controller is responsible for the global power management and distribution of multiple split-type charging piles; it can also be called the system controller. Within the charging host, the charging controller, input power distribution unit, power conversion unit, and output power distribution unit are all deployed independently. Furthermore, the output of the charging host is electrically connected to one or more split-type charging piles, as shown in Figure 9 as charging pile 1, charging pile 2, ..., charging pile N. Each split-type charging pile includes its own power distribution switch, protection circuit, detection circuit, charging pile control unit, and human-machine interface unit.

[0210] Referring to Figure 9, the power conversion unit can include multiple power conversion unit groups. As shown in Figure 9, power conversion units 1 to N can form one group, and power conversion units N+1 to N+M can form another group, where N and M are both positive integers. One power conversion unit group is connected to a separate charging pile. Thus, by grouping the power conversion units and connecting one or more power conversion unit groups to a separate charging pile, the charging power of multiple separate charging piles can be flexibly controlled using individually deployed power conversion units, improving the flexibility of the charging equipment.

[0211] In this way, by centrally deploying the charging controller, input power distribution unit, power conversion unit and output power distribution unit, multiple split charging piles can be connected. The charging process of multiple split charging piles is controlled by the centrally deployed charging controller, input power distribution unit, power conversion unit and output power distribution unit, thus realizing a charging solution based on the charging host.

[0212] For example, when the charging pile is connected to the device to be charged, the charging controller is used to: obtain the charging information of the device to be charged and obtain the power information of the UPS battery pack; when the power information of the UPS battery pack meets the preset conditions, based on the charging information, control the first power supply (such as at least one of the UPS host, battery charger or battery pack) to supply power to the split charging pile.

[0213] Based on the charging equipment shown in Figure 9, a solution has been implemented that uses UPS battery packs inside the data center to power charging equipment (split-type charging piles) outside the data center. On the one hand, this effectively utilizes the power supply in the data center, fully leveraging its role and improving its utilization rate. On the other hand, it eliminates the need to replan power supply and backup facilities, reducing the time and cost required to build a power supply system.

[0214] The architecture of an HVDC-based charging device will be described below using an integrated charging pile as an example, based on Figure 10. For example, Figure 10 is a schematic diagram of the architecture of an HVDC-based charging device provided in an embodiment of this application. Referring to Figure 10, the left side of the dashed line represents the interior of the data center, including a first power supply (such as HVDC), an output power distribution unit, and computing devices, etc. The right side of the dashed line represents the exterior of the data center, including the integrated charging pile and the device to be charged.

[0215] The first power supply can be an HVDC power supply, which includes an HVDC power supply, a power controller, and a battery pack. It should be noted that the HVDC power supply and battery charger can be integrated into one unit; Figure 10 uses an HVDC power supply for representation.

[0216] In some possible implementations, the output of the HVDC power supply is electrically connected to the integrated charging pile via a high-voltage DC bus, and the power controller and battery pack are also connected to the high-voltage DC bus. There can be one or more battery packs; in the case of multiple battery packs, they can be connected together on the high-voltage DC bus (as shown in Figure 10, battery pack 1, ..., battery pack N, etc.), forming a battery pool.

[0217] Regarding HVDC (High Voltage Direct Current Distribution), within a data center, HVDC converts AC power from the mains into high-voltage DC power, which is then supplied to computing devices via a high-voltage DC bus. Simultaneously, HVDC can also convert AC power from the mains into DC power to charge battery packs. Furthermore, when the mains power output is abnormal (such as overvoltage, undervoltage, power outages, or frequency anomalies), HVDC can supply DC power from the battery packs to the computing devices via the high-voltage DC bus, providing short-term backup power and ensuring a stable and uninterrupted power supply to the computing devices in the data center, thereby guaranteeing the reliability of the data center's power supply.

[0218] In HVDC-based charging equipment, the charging controller can communicate with the power controller connected to the battery pack to enable the HVDC-based battery pack to power the integrated charging pile. The power controller and battery pack can have a one-to-one correspondence, for example, one power controller connected to one battery pack. Alternatively, the power controller and battery pack can have a one-to-many correspondence, for example, one power controller connected to multiple battery packs.

[0219] For example, when the integrated charging pile is connected to the device to be charged, the charging controller is used to: obtain the charging information of the device to be charged and obtain the power information of the HVDC battery pack; when the power information of the HVDC battery pack meets the preset conditions, based on the charging information, control the first power supply (such as at least one of the HVDC power supply and the battery pack) to supply power to the integrated charging pile.

[0220] Based on the charging equipment shown in Figure 10, a solution has been implemented to charge an integrated charging pile outside the data center using the HVDC power supply and battery pack inside the data center. On the one hand, it can effectively utilize the power supply in the data center, give full play to the role of the power supply in the data center, and improve the utilization rate of the power supply in the data center. On the other hand, it eliminates the need to replan the power supply facilities and backup power facilities, reducing the time and cost required to build the power supply system.

[0221] The architecture of an HVDC-based charging device will be described below, taking the charging host as an example, based on Figure 11. For example, Figure 11 is a schematic diagram of the architecture of another HVDC-based charging device provided in an embodiment of this application.

[0222] Referring to (11-1) in Figure 11, a deployment method for charging equipment is shown. The left side of the dashed line represents the interior of the data center, including the primary power supply (such as HVDC), output power distribution unit, and computing equipment. The right side of the dashed line represents the exterior of the data center, including the charging host, multiple split-type charging piles connected to the charging host, and devices to be charged.

[0223] Referring to (11-2) in Figure 11, another deployment method for charging equipment is shown. The left side of the dashed line represents the interior of the data center, including the primary power supply (such as HVDC), computing devices, and the charging host. The right side of the dashed line represents the exterior of the data center, including multiple split-type charging piles connected to the charging host and devices to be charged.

[0224] Thus, by deploying the charging host inside the data center, which has a complete environmental control system that can centrally manage power equipment and environmental variables, the design and manufacture of the charging equipment can effectively utilize the indoor working requirements supported by the existing environmental control system. Compared to designing and manufacturing the charging equipment outside the data center according to outdoor working requirements, this effectively reduces the design and manufacturing costs of the charging equipment. Furthermore, compared to designing and manufacturing outside the data center, it also avoids cable loss and unexpected situations caused by cable elongation (such as surge currents from lightning), effectively improving power supply reliability.

[0225] For example, when the charging host is connected to the device to be charged, the charging controller is used to: obtain the charging information of the device to be charged and obtain the power information of the HVDC battery pack; when the power information of the HVDC battery pack meets the preset conditions, based on the charging information, control the first power supply (such as at least one of the HVDC power supply and the battery pack) to supply power to the split charging pile.

[0226] Based on the charging equipment shown in Figure 11, a solution is implemented to charge the external split-type charging piles using the HVDC power supply and battery pack inside the data center. On the one hand, it can effectively utilize the power supply in the data center, fully leverage its role, and improve the utilization rate of the power supply in the data center. On the other hand, it eliminates the need to replan the power supply and backup power facilities, reducing the time and cost required to build the power supply system.

[0227] In the above embodiments, the existing power supply and distribution system of the data center (such as UPS or HVDC) is used to add charging function to the charging equipment of the data center, which improves the power utilization rate of the data center, reduces redundant investment in power and waste of resources, and realizes the sharing of power resources between the data center and the charging equipment.

[0228] In addition, in some possible implementations, the charging device may also include a human-machine interface unit, which can be used to provide functions such as a card reader, display screen, DC meter, and charging billing.

[0229] The card reader provides card-swiping functionality. For example, payments can be made by swiping a card. Of course, in other possible implementations, other payment methods such as QR code scanning can also be supported.

[0230] The display screen can be a liquid crystal display (LCD), such as a touchscreen. In some possible implementations, the display screen provides a user interface for human-machine interaction with the charging device. For example, by operating on the display interface, the user can select a charging mode, such as a fixed power mode, a fixed time mode, a fixed amount mode, or an automatic charging mode (i.e., charging until fully charged). Furthermore, during charging, the display interface can also show the current charging mode, time (time already charged, remaining charging time, etc.), power level (charged power, power to be charged, etc.), and current billing information. Thus, by deploying a display screen, human-machine interaction can be provided during charging, improving the efficiency of human-machine interaction.

[0231] In this embodiment, when the battery 1032's power level meets the data center's backup power requirements, the display interface shows the fast charging status. When the battery 1032's power level does not meet the data center's backup power requirements, the display interface shows the slow charging status. Thus, by providing a display interface for the charging device, users can promptly obtain information about the current charging status based on the fast or slow charging status displayed on the interface, improving the human-computer interaction experience.

[0232] In some possible implementations, when the charging device is the charging host, the charging pile control unit and the human-machine interaction unit can share a single controller, thereby realizing the human-machine interaction, charging control, and communication functions with the charging controller of the distributed charging pile based on the same controller.

[0233] In addition, in some possible implementations, the charging device may also include protection circuits and detection circuits.

[0234] The protection circuit provides functions such as overvoltage protection, undervoltage protection, overload protection, short circuit protection, and leakage protection, offering comprehensive protection capabilities.

[0235] The detection circuit can be used to detect the output current and output voltage of the power conversion unit 101 to realize the circuit protection function of the power supply system. Alternatively, the detection circuit can also be used to detect the actual amount of electricity charged in this charge, so that the actual amount of electricity charged and the current billing information can be displayed on the display interface.

[0236] In this embodiment, the existing power supply in the data center is used as the power supply for the charging device. This allows the existing power supply in the data center to be used to charge the device. On the one hand, it can effectively utilize the power supply in the data center, give full play to the role of the power supply in the data center, and improve the utilization rate of the power supply in the data center. On the other hand, it eliminates the need to replan the power supply facilities and backup power facilities, reducing the time and cost required to build the power supply system.

[0237] Regarding the charging controller involved in the embodiments of this application, it can be a control board, such as a main control board, which is a central controller in the charging device that has functions such as communication connection, data processing and centralized control.

[0238] For example, Figure 12 is a schematic diagram of the hardware structure of a charging controller provided in an embodiment of this application. Referring to Figure 12, the charging controller 1200 shown in Figure 12 may include: a processor 1201, a memory 1202, a communication interface 1203, and a communication cable 1204. The processor 1201, the memory 1202, and the communication interface 1203 can be connected via the communication cable 1204.

[0239] The processor 1201 is the control center of the charging controller 1200, and can be a general-purpose central processing unit (CPU) or other general-purpose processors. The general-purpose processor can be a microprocessor or any conventional processor. In this embodiment, the charging method can be executed by the processor 1201 in the charging controller 1200. As an example, the processor 1201 may include one or more CPUs, such as CPU core 0 and CPU core 1 shown in FIG. 12.

[0240] The memory 1202 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0241] In one possible implementation, the memory 1202 may exist independently of the processor 1201. The memory 1202 can be connected to the processor 1201 via a bus 1204 and is used to store data, instructions, or program code. When the processor 1201 calls and executes the instructions or program code stored in the memory 1202, it can implement the charging method provided in the embodiments of this application.

[0242] In another possible implementation, the memory 1202 can also be integrated with the processor 1201.

[0243] The communication interface 1203 is used for the charging controller 1200 to connect with other devices via a communication network, which can be Ethernet, radio access network (RAN), wireless local area network (WLAN), etc. The communication interface 1203 may include a receiving unit for receiving data and a transmitting unit for transmitting data.

[0244] The communication cable 1204 can be an industry standard architecture (ISA) bus, a peripheral component interconnect (PCI) bus, or an extended industry standard architecture (EISA) bus, etc. For ease of illustration, only one thick line is used to represent it in Figure 12, but this does not mean that there is only one communication cable or only one type of communication cable.

[0245] It should be noted that the structure shown in Figure 12 does not constitute a limitation on the charging controller 1200. In addition to the components shown in Figure 12, the charging controller 1200 may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0246] Figure 13 is a schematic flowchart of a charging method provided in an embodiment of this application. This method can be applied to the aforementioned charging device, for example, it can be executed by the charging controller of the charging device. Referring to Figure 13, the method includes:

[0247] S1301, The charging controller obtains the charging information of the device to be charged.

[0248] The charging information includes at least one of voltage, current, and power. It is understood that the charging information is used to indicate the charging requirements of the device to be charged, such as including at least one of voltage, current, and power.

[0249] In some possible implementations, the charging information of the device to be charged can be in the form of charging curves, such as current curves and voltage curves. The current curve can be a curve showing the change of current in the battery pack of the device to be charged over time during the charging process, used to characterize the current requirements of the device. Similarly, the voltage curve can be a curve showing the change of voltage in the battery pack of the device to be charged over time during the charging process, used to characterize the voltage requirements of the device.

[0250] It is worth noting that charging information can also take other forms, such as numerical ranges. This application does not limit this. For example, the charging requirements for the device to be charged can be: first constant current charging, and then constant voltage charging when the voltage gradually increases to a preset voltage threshold (e.g., 700V).

[0251] S1302, The charging controller controls the charging equipment to charge the device to be charged based on the charging information.

[0252] In some possible implementations, the charging controller controls the power conversion unit to perform voltage conversion on the output voltage of the first power supply based on the charging information, so as to convert the output voltage of the first power supply into the charging voltage of the device to be charged, thereby charging the device to be charged.

[0253] For example, based on charging information, the charging controller controls the power conversion unit to perform voltage conversion on the output voltage of at least one of the main power supply, battery, and battery charger in the first power supply, so as to convert the output voltage into the charging voltage of the device to be charged, thereby charging the device to be charged.

[0254] The technical solution provided in this application connects the input of a power conversion unit to the output of a power supply that powers computing devices in a data center. This allows the charging controller to obtain charging information from the device to be charged and, based on this information, control the power conversion unit to convert the power supply's output voltage into the charging voltage for the device, thereby charging it. This utilizes existing power supplies in the data center, effectively leveraging their capabilities and improving utilization. Furthermore, it eliminates the need for redesigning power supply and backup facilities, reducing the time and cost of building a power supply system.

[0255] Figure 14 is a flowchart illustrating a charging method provided in an embodiment of this application. Taking the interaction process between the charging controller and the power controller as an example, the method includes the following steps S1401-S1409:

[0256] S1401, The charging controller obtains the charging information of the device to be charged.

[0257] The device to be charged can be an electric vehicle. Charging information includes at least one of voltage, current, and power. The charging information of the device to be charged is used to indicate the charging requirements of the device, such as at least one of voltage requirements, current requirements, and power requirements.

[0258] In some possible implementations, the charging information of the device to be charged may include charging curves, such as current curves and voltage curves. The current curve can be a curve showing the change of current in the battery pack of the device to be charged over time during the charging process, used to characterize the current requirements of the device. The voltage curve can be a curve showing the change of voltage in the battery pack of the device to be charged over time during the charging process, used to characterize the voltage requirements of the device. For example, the charging requirements of the device to be charged may be: first constant current charging, and then constant voltage charging when the voltage gradually increases to a preset voltage threshold (e.g., 700V).

[0259] When the charging equipment is an integrated charging pile, the charging controller obtains the charging information of the device to be charged through communication and interaction with the BMS of the device to be charged.

[0260] For example, the process by which the charging controller obtains the charging information of the device to be charged can be as follows: The BMS obtains information such as the battery system configuration (e.g., voltage, current, power, and other safety parameters), SOC, and state of health (SOH) of the device to be charged. Based on the battery pack system configuration, SOC, and SOH of the device to be charged, the BMS determines the charging information of the device to be charged and sends the determined charging information of the device to be charged to the charging controller. The charging controller can then obtain the charging information of the device to be charged. Here, SOH refers to the relative state of the battery's health compared to a new battery, and is generally expressed as a percentage.

[0261] For another example, the process by which the charging controller obtains the charging information of the device to be charged can be as follows: the BMS obtains information such as the battery system configuration, SOC, and SOH of the device to be charged, and sends this information to the charging controller. Then, after receiving the information, the charging controller determines the charging information of the device based on this information.

[0262] In some other possible implementations, where the charging device is the charging host, the charging controller obtains the charging information of the device to be charged through communication interaction with the charging pile control unit of the split charging pile.

[0263] In this embodiment of the application, the charging controller can send an information acquisition request to the charging pile control unit. The information acquisition request is used to request the acquisition of the charging information of the device to be charged, and then receive the charging information of the device to be charged returned by the charging pile control unit.

[0264] The charging pile control unit can obtain the charging information of the device to be charged through communication and interaction with the BMS of the device to be charged.

[0265] For example, the process by which the charging pile control unit obtains the charging information of the device to be charged can be as follows: the BMS obtains the battery system configuration (such as voltage, current, power, and other safety parameters), SOC, and SOH information of the device to be charged; determines the charging information of the device to be charged based on the battery pack system configuration, SOC, and SOH information; and sends the determined charging information of the device to be charged to the charging pile control unit, thus enabling the charging pile control unit to obtain the charging information of the device to be charged. Furthermore, the charging pile control unit can send the charging information of the device to be charged to the charging controller.

[0266] For example, the process by which the charging pile control unit obtains the charging information of the device to be charged can be as follows: the BMS obtains information such as the battery system configuration, SOC, and SOH of the device to be charged, and sends this information to the charging pile control unit. After receiving this information, the charging pile control unit determines the charging information of the device based on it. Then, the charging pile control unit can send the charging information of the device to be charged to the charging controller.

[0267] It is worth noting that in other possible implementations, the charging controller can also employ other methods to obtain the charging information of the device to be charged. For example, after receiving information such as the battery pack system configuration, SOC, and SOH of the device to be charged, the charging pile control unit can send this information to the charging controller. The charging controller, upon receiving this information, determines the charging information of the device based on it. This application does not limit this approach.

[0268] S1402, The charging controller sends a power query signal to the power controller of the first power supply.

[0269] The power query signal is used to query the power information of the battery in the first power supply, such as the remaining power.

[0270] In this embodiment, the first power supply may include a main power supply, a battery, a power controller, and a battery charger. The main power supply may be a UPS or an HVDC power supply. It should be noted that in an HVDC power supply scenario, the battery charger and the main power supply (i.e., HVDC) can be integrated into a single unit. In a UPS power supply scenario, a separate battery charger can be deployed to charge the battery.

[0271] S1403, The power controller of the first power supply receives the power query signal, obtains the power information of the battery in the first power supply, and returns the power information to the charging controller.

[0272] In some possible implementations, the process by which the power controller obtains the battery's power information can be as follows: the power controller obtains the battery pack capacity and SOC of the battery, and determines the product of the battery pack capacity and SOC as the battery's power information.

[0273] It is worth noting that, in other possible implementations, the power controller may also employ other methods to obtain battery power information. This application does not limit this approach.

[0274] S1404 The charging controller receives battery power information returned by the power controller.

[0275] It should be noted that S1402 to S1404 above describe the process by which the charging controller obtains the battery's power information based on the power controller. It is worth noting that in some embodiments, the charging controller may also use other methods to obtain the battery's power information, and this application embodiment does not limit this method.

[0276] S1405: The charging controller determines whether the battery power information meets preset conditions. If the power information meets the preset conditions, proceed to S1406. If the power information does not meet the preset conditions, proceed to S1407.

[0277] The preset condition could be the data center's backup power requirements. Data center backup power requirements refer to the minimum power requirement to supply power to all computing devices in the data center, which must be greater than or equal to that required. It should be understood that if the battery's power information meets the data center's backup power requirements—meaning the battery's power information is greater than or equal to the minimum power requirement to supply power to all computing devices in the data center—then the battery can be used to charge the devices to be charged.

[0278] In the above embodiments, by determining whether the battery power information meets preset conditions such as the backup power requirements of the data center, it is ensured that the subsequent process of using the battery to charge the device to be charged is executed if the battery power information meets the backup power requirements of the data center. Furthermore, even if the battery power information does not meet the backup power requirements of the data center, the device to be charged can be charged using other power sources in the first power supply besides the battery, such as the main power supply (e.g., UPS or HVDC) and the battery charger, thereby ensuring the charging reliability of the device to be charged.

[0279] It should be noted that steps S1402 to S1405 are optional. In some other embodiments, after obtaining the charging information of the device to be charged, the charging controller does not need to perform the process of obtaining the battery's power information and determining whether the battery's power information meets the preset conditions. Based on the charging information of the device to be charged, the controller controls the charging device to charge the device, such as controlling other power sources in the first power supply of the charging device other than the battery to charge the device.

[0280] S1406: The charging controller determines whether the electrical energy output from the first power supply, including the battery, meets the charging information of the device to be charged. If the electrical energy output from the first power supply, including the battery, meets the charging information of the device to be charged, proceed to S1408. If the electrical energy output from the first power supply, including the battery, does not meet the charging information of the device to be charged, proceed to S1409.

[0281] In some possible implementations, the charging controller determines whether the electrical energy output from the main power supply (such as a UPS or HVDC), battery, and battery charger in the first power supply meets the charging requirements of the device to be charged. If the electrical energy output from the main power supply (such as a UPS or HVDC), battery, and battery charger in the first power supply meets the charging requirements of the device to be charged, it indicates that the electrical energy output from the first power supply meets the charging requirements of the device to be charged. If the electrical energy output from the main power supply (such as a UPS or HVDC), battery, and battery charger in the first power supply does not meet the charging requirements of the device to be charged, it indicates that the electrical energy output from the first power supply does not meet the charging requirements of the device to be charged.

[0282] S1407: The charging controller determines whether the electrical energy output from the power source other than the battery in the first power supply meets the charging information of the device to be charged. If the electrical energy output from the power source other than the battery in the first power supply meets the charging information of the device to be charged, proceed to S1408. If the electrical energy output from the power source other than the battery in the first power supply does not meet the charging information of the device to be charged, proceed to S1409.

[0283] In some possible implementations, the charging controller determines whether the electrical energy output from the main power supply (such as a UPS or HVDC) and the battery charger in the first power supply meets the charging requirements of the device to be charged. If the electrical energy output from the main power supply (such as a UPS or HVDC) and the battery charger in the first power supply meets the charging requirements of the device to be charged, it indicates that the electrical energy output from other power sources in the first power supply besides the battery meets the charging requirements of the device to be charged. If the electrical energy output from the main power supply (such as a UPS or HVDC) and the battery charger in the first power supply does not meet the charging requirements of the device to be charged, it indicates that the electrical energy output from other power sources in the first power supply besides the battery does not meet the charging requirements of the device to be charged.

[0284] S1408 The charging controller controls the first power supply to charge the device to be charged based on the charging information.

[0285] In some possible implementations, if the electrical energy output from the battery in the first power supply meets the charging information of the device to be charged, the charging controller controls the main power supply (such as UPS or HVDC), the battery charger, and the battery in the first power supply to charge the device to be charged based on the charging information.

[0286] In some other possible implementations, if the electrical energy output from the power source other than the battery in the first power supply meets the charging information of the device to be charged, the charging controller controls the main power source (such as UPS or HVDC) and the battery charger in the first power supply to charge the device to be charged based on the charging information.

[0287] For example, when the first power supply includes a UPS and the UPS outputs AC power, the charging controller controls the first AC / DC converter to convert the AC power output from the UPS into a charging voltage. Thus, a scheme is provided for voltage conversion of the AC power output from the UPS based on the first AC / DC converter, enabling control of the output power to achieve a voltage with better power supply performance, thereby achieving reliable charging of the device to be charged.

[0288] For example, when the first power supply includes a UPS and the UPS outputs DC power, or when the first power supply includes HVDC power, the charging controller controls the first DC / DC converter to convert the DC power output from the UPS or the DC power output from the HVDC into a charging voltage. Thus, a scheme is provided for voltage conversion of the DC power output from the UPS or the DC power output from the HVDC based on the first DC / DC converter, enabling control of the output power to achieve a voltage with better power supply performance, thereby achieving reliable charging of the device to be charged.

[0289] For example, when the first power supply also includes a battery, the charging controller controls the second DC / DC converter to convert the DC power output from the battery into a charging voltage. Thus, a scheme is provided for voltage conversion of the DC power output from the battery based on the second DC / DC converter, enabling control of the output power to achieve a voltage with better power supply performance, thereby achieving reliable charging of the device to be charged.

[0290] The charging controller can determine the available power supply based on the battery's charge level and the data center's backup power requirements. This available power supply is the amount of power the battery is allowed to supply to the device being charged. Then, based on this available power supply, the controller controls the battery to charge the device.

[0291] Therefore, considering the backup power requirements of the data center, while ensuring that the backup power requirements of the data center are met, the amount of power that the battery is allowed to supply to the device to be charged is determined. Then, based on the amount of power that the battery is allowed to supply to the device to be charged, the battery is controlled to charge the device to be charged. This not only ensures the reliability of the backup power of the data center, but also ensures the reliability of the power supply to the charging device.

[0292] For example, when the first power supply also includes a battery charger, the charging controller controls the third DC / DC converter to convert the DC power output from the battery charger into a charging voltage. Thus, a scheme is provided for voltage conversion of the DC power output from the battery charger based on the third DC / DC converter, enabling control of the output power to achieve a voltage with better power supply performance, thereby achieving reliable charging of the device to be charged.

[0293] S1409. The charging controller controls the first power supply and the second power supply to charge the device to be charged based on the charging information.

[0294] The second power source is AC power from the power grid.

[0295] In some possible implementations, if the electrical energy output from the battery in the first power supply does not meet the charging information of the device to be charged, the charging controller controls the main power supply (such as UPS or HVDC), battery charger, battery, and second power supply in the first power supply to charge the device to be charged based on the charging information.

[0296] In some other possible implementations, if the electrical energy output from the power source other than the battery in the first power supply does not meet the charging information of the device to be charged, the charging controller controls the main power source (such as UPS or HVDC), the battery charger, and the second power supply in the first power supply to charge the device to be charged based on the charging information.

[0297] For example, when charging the device to be charged in conjunction with a second power supply, the charging controller also controls the second AC / DC converter to convert the AC power from the power grid into a charging voltage. Thus, a scheme is provided that uses the second AC / DC converter to perform voltage conversion on the AC power output from the second power supply, enabling control of the output power to achieve a voltage with better power supply performance, thereby ensuring reliable charging of the device to be charged.

[0298] In the above embodiments, a scheme for charging a device to be charged based on a first power supply and a second power supply is provided. Specifically, by determining whether the electrical energy output from the first power supply meets the charging requirements of the device to be charged, the device can be charged in conjunction with the second power supply if the electrical energy output from the first power supply does not meet the charging requirements, thereby ensuring the charging reliability of the device.

[0299] Furthermore, in some possible implementations, during the charging process of the device to be charged using a battery, if the battery's charge level falls below a preset threshold, the charging controller instructs the power conversion unit to stop outputting power. Thus, by determining whether the battery's charge level is below the preset threshold, it ensures that power output stops when the battery's charge is insufficient to continue providing energy, thereby preventing the battery from running out of power.

[0300] It should be noted that Figure 14 above illustrates the process of controlling the charging device to charge the device based on the judgment flow of battery power information and the charging information of the device to be charged. In other possible implementations, the charging device can also be controlled to charge the device based on other types of charging strategies. The embodiments of this application do not limit the setting of the charging strategy.

[0301] The technical solution provided in this application connects the input of a power conversion unit to the output of a power supply that powers computing devices in a data center. This allows the charging controller to obtain charging information from the device to be charged and, based on this information, control the power conversion unit to convert the power supply's output voltage into the charging voltage for the device, thereby charging it. This utilizes existing power supplies in the data center, effectively leveraging their capabilities and improving utilization. Furthermore, it eliminates the need for redesigning power supply and backup facilities, reducing the time and cost of building a power supply system.

[0302] The above mainly describes the solutions of the embodiments of this application from a methodological perspective. It is understood that the charging controller in the embodiments of this application includes hardware structures and / or software modules corresponding to the execution of each function in order to achieve the above-mentioned functions. Those skilled in the art should readily recognize that, in conjunction with the units and algorithm steps of the various examples described in the embodiments disclosed herein, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application.

[0303] Figure 15 is a schematic diagram of a charging device provided in an embodiment of this application. Referring to Figure 15, the charging device includes an acquisition module 1501 and a charging module 1502.

[0304] The acquisition module 1501 is used to acquire charging information of the device to be charged; the charging information includes at least one of voltage, current and power.

[0305] The charging module 1502 is used to control the charging device to charge the device to be charged based on the charging information.

[0306] The technical solution provided in this application connects the input of a power conversion unit to the output of a power supply that powers computing devices in a data center. This allows the charging controller to obtain charging information from the device to be charged and, based on this information, control the power conversion unit to convert the power supply's output voltage into the charging voltage for the device, thereby charging it. This utilizes existing power supplies in the data center, effectively leveraging their capabilities and improving utilization. Furthermore, it eliminates the need for redesigning power supply and backup facilities, reducing the time and cost of building a power supply system.

[0307] In some possible implementations, the first power supply also includes a battery and a power controller; wherein the battery is a power supply device used in the data center to provide backup power for computing devices; the power controller is electrically connected to the battery; the power controller is used to obtain battery power information; the input terminal of the power conversion unit is electrically connected to the output terminal of the battery; and the charging controller is electrically connected to the power controller.

[0308] The charging module 1502 is specifically used for:

[0309] The power controller obtains the battery's power information; when the power information meets preset conditions, the charging device is controlled to charge the device to be charged based on the charging information.

[0310] In some possible implementations, where the first power supply includes a UPS and the UPS output is AC, the power conversion unit includes a first AC / DC conversion unit; wherein the input terminal of the first AC / DC conversion unit is electrically connected to the output terminal of the UPS; the output terminal of the first AC / DC conversion unit is electrically connected to the device to be charged; and the charging controller is electrically connected to the first AC / DC conversion unit.

[0311] The charging module 1502 is also used for:

[0312] The first AC / DC conversion unit controls the AC power output from the UPS to convert it into charging voltage.

[0313] In some possible implementations, where the first power supply includes a UPS and the UPS output is DC, or where the first power supply includes HVDC, the power conversion unit includes a first DC / DC conversion unit; wherein the input terminal of the first DC / DC conversion unit is electrically connected to the output terminal of the UPS or the output terminal of the HVDC; the output terminal of the first DC / DC conversion unit is electrically connected to the device to be charged; and the charging controller is electrically connected to the first DC / DC conversion unit.

[0314] The charging module 1502 is also used for:

[0315] The first DC / DC converter unit controls the DC power output from the UPS or the DC power output from HVDC to convert it into a charging voltage.

[0316] In some possible implementations, where the first power supply also includes a battery, the power conversion unit further includes a second DC / DC conversion unit; wherein the input terminal of the second DC / DC conversion unit is electrically connected to the output terminal of the battery; the output terminal of the second DC / DC conversion unit is electrically connected to the device to be charged; and the charging controller is electrically connected to the second DC / DC conversion unit.

[0317] The charging module 1502 is also used for:

[0318] The second DC / DC converter unit is controlled to convert the DC power output from the battery into a charging voltage.

[0319] In some possible implementations, when the charging device is a charging host, the output of the charging host is electrically connected to a split-type charging pile including a charging pile control unit, which is used to acquire charging information of the device to be charged; the charging controller is electrically connected to the charging pile control unit.

[0320] The acquisition module 1501 is specifically used for:

[0321] The charging pile control unit of the split-type charging pile, which is electrically connected to the output end of the charging host, obtains the charging information of the device to be charged.

[0322] In some possible implementations, the charging device further includes a second AC / DC converter; wherein the input terminal of the second AC / DC converter is electrically connected to a second power supply; the second power supply is AC power from the mains; the output terminal of the second AC / DC converter is electrically connected to the device to be charged; and the charging controller is electrically connected to the second AC / DC converter.

[0323] The charging module 1502 is also used for:

[0324] The second AC / DC converter unit controls the AC power from the grid to be converted into charging voltage.

[0325] This application also provides a charging controller, which includes a processor and a memory, the processor and the memory being coupled. The memory stores computer program instructions, and the processor invokes the computer program instructions stored in the memory to execute the charging method shown in the above embodiments.

[0326] This application also provides a computer-readable storage medium storing computer program instructions for causing a charging controller to perform the charging method shown in the above embodiments.

[0327] This application also provides a computer program product, including computer program instructions, which, when executed on a charging controller, cause the charging controller to perform the charging method as shown in the above embodiments.

[0328] In this application, the charging controller, computer-readable storage medium, or computer program product provided in the embodiments are all used to execute the corresponding methods described above. Therefore, the beneficial effects they can achieve can be referred to in the beneficial effects of the corresponding methods described above, and will not be repeated here.

[0329] Through the above description of the embodiments, those skilled in the art will clearly understand that, for the sake of convenience and brevity, the division of the above functional modules is only used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device (such as a charging controller) can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device (such as a charging controller), and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0330] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices (such as charging controllers), and methods can be implemented in other ways. For example, the device (such as charging controller) embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between devices or units through some interfaces, and may be electrical, mechanical, or other forms.

[0331] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0332] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0333] If the aforementioned integrated units are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as flash memory, portable hard disk, read-only memory, random access memory, magnetic disk, or optical disk.

[0334] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A charging device, characterized by, The power conversion unit and the charging controller are included. An input end of the power conversion unit is electrically connected with an output end of a first power supply; the first power supply is a power supply for supplying power to a computing device in a data center; and the first power supply includes an uninterruptible power supply (UPS) or a high-voltage direct-current power supply system (HVDC). An output end of the power conversion unit is electrically connected with a device to be charged; and the power conversion unit is configured to convert an output voltage of the first power supply into a charging voltage of the device to be charged. The charging controller is electrically connected with the power conversion unit; and the charging controller is configured to control the charging device to charge the device to be charged.

2. The charging device according to claim 1, characterized in that, The first power supply further includes a battery and a power supply controller; the battery is a power supply device for providing backup power to the computing device in the data center; The power supply controller is electrically connected with the battery; and the power supply controller is configured to acquire power information of the battery. An input end of the power conversion unit is electrically connected with an output end of the battery. The charging controller is electrically connected with the power supply controller. The charging controller is configured to control the charging device to charge the device to be charged, including: acquiring the power information of the battery based on the power supply controller; controlling the charging device to charge the device to be charged when the power information meets a preset condition.

3. The charging device according to claim 1 or 2, characterized in that, When the first power supply includes the UPS and the UPS outputs alternating current, the power conversion unit includes a first alternating current / direct current conversion unit. An input end of the first alternating current / direct current conversion unit is electrically connected with an output end of the UPS. An output end of the first alternating current / direct current conversion unit is electrically connected with the device to be charged. The charging controller is electrically connected with the first alternating current / direct current conversion unit; and the charging controller is further configured to control the first alternating current / direct current conversion unit to convert the alternating current output by the UPS into the charging voltage.

4. The charging device according to claim 1 or 2, characterized by, When the first power supply includes the UPS and the UPS outputs direct current, or the first power supply includes the HVDC, the power conversion unit includes a first direct current / direct current conversion unit. An input end of the first direct current / direct current conversion unit is electrically connected with an output end of the UPS or an output end of the HVDC. An output end of the first direct current / direct current conversion unit is electrically connected with the device to be charged. The charging controller is electrically connected with the first direct current / direct current conversion unit; and the charging controller is further configured to control the first direct current / direct current conversion unit to convert the direct current output by the UPS or the direct current output by the HVDC into the charging voltage.

5. The charging device according to claim 3 or 4, characterized in that, When the first power supply further includes the battery, the power conversion unit further includes a second direct current / direct current conversion unit. An input end of the second direct current / direct current conversion unit is electrically connected with an output end of the battery. An output end of the second direct current / direct current conversion unit is electrically connected with the device to be charged. The charging controller is electrically connected with the second DC / DC conversion unit; the charging controller is further configured to control the second DC / DC conversion unit to convert the DC power output by the battery into the charging voltage.

6. The charging device according to any one of claims 1 to 5, characterized in that, The charging device further comprises an input power distribution unit; An input end of the input power distribution unit is electrically connected with an output end of the first power supply; An output end of the input power distribution unit is electrically connected with an input end of the power conversion unit.

7. The charging device according to any one of claims 1 to 6, characterized in that, The charging device further comprises an output power distribution unit; An input end of the output power distribution unit is electrically connected with an output end of the power conversion unit; An output end of the output power distribution unit is electrically connected with the device to be charged.

8. The charging device according to any one of claims 1 to 7, characterized in that, The charging device is an integrated charging pile or a charging host; an output end of the charging host is electrically connected with one or more split charging piles; each of the split charging piles is configured to charge one of the devices to be charged.

9. The charging apparatus according to claim 8, characterized by, The charging host is arranged inside the data center.

10. The charging device according to any one of claims 2-9, characterized in that, The charging device further comprises a second AC / DC conversion unit; The input end of the second AC / DC conversion unit is electrically connected with a second power supply; the second power supply is AC power from a power grid; The output end of the second AC / DC conversion unit is electrically connected with the device to be charged; The charging controller is electrically connected with the second AC / DC conversion unit; the charging controller is further configured to control the second AC / DC conversion unit to convert the AC power from the power grid into the charging voltage.

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