Implementation method for seamless switching of centralized bypass power supply of data center machine room
By introducing backup power input switches and bypass transformer backup switches into UPS equipment and transformer power distribution equipment in the data center computer room, seamless switching of power supply in the computer room is achieved, solving the problem of interruption of power supply circuits, ensuring the safety of power supply in the computer room and the continuity of business.
Patent Information
- Application Number
- CN202411992977.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-05-16
AI Technical Summary
When the life cycle of UPS equipment and transformer distribution equipment in the data center computer room is replaced or failed, the power supply circuit is easily interrupted, and the security of power supply and business continuity of the computer room cannot be guaranteed.
By drawing out the backup switch of the bypass transformer on the upper switch side of each floor, and adding the backup power input switch and the main input switch in the substation and distribution station, the interlocking design is achieved to achieve seamless switching of the bypass power supply in the computer room, including backup power supply, main power supply, main power supply and main power supply and main power supply and UPS internal maintenance bypass are simultaneously powered by.
It effectively avoids interruption of power supply circuits, ensuring the safety of power supply in the computer room and the continuity of business.
Smart Images
Figure CN120016671A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of bypass power supply switching, and in particular relates to a method for realizing seamless switching of centralized bypass power supply in a data center computer room. Background Art
[0002] The centralized bypass power supply switching method of the data center computer room usually involves the bypass working mode of the UPS (uninterruptible power supply system); taking the static bypass working mode as an example, its circuit path is generally: mains → total input and bypass switch cabinet → bypass input → Q2 switch → Q5 switch → UPS total output → load. In this mode, the UPS system can detect the status of the input power supply, and when a fault occurs in the inverter working mode, the load will be switched to the static bypass working mode to ensure the continuity of power supply. In addition, there are also working modes such as external maintenance bypass and built-in maintenance bypass. These modes are mainly used for maintenance or fault repair of the UPS system to ensure that the UPS can be repaired or maintained without power outage.
[0003] However, when the above-mentioned power supply switching method is adopted, when the floor UPS equipment, UPS upstream and downstream power distribution equipment (high-voltage switchgear, transformer, low-voltage distribution cabinet, low-voltage distribution cabinet busbar, etc.) are replaced during their life cycle, or when the upstream power distribution equipment of the floor UPS input switch fails, the power supply circuit will be interrupted, thereby failing to ensure the power supply safety of the computer room and business continuity. Therefore, we need to propose a method for seamless switching of centralized bypass power supply in the computer room of a data center to solve the above-mentioned problems, so that it can realize seamless switching of bypass power supply to the computer room, effectively avoid interruption of the power supply circuit, ensure the power supply safety of the computer room and ensure business continuity. Summary of the invention
[0004] The purpose of the present invention is to provide a method for implementing seamless switching of centralized bypass power supply in a data center computer room, which can achieve seamless switching of bypass power supply in the computer room, effectively avoid interruption of the power supply circuit, ensure the power supply safety of the computer room and ensure business continuity, so as to solve the problems raised in the above background technology.
[0005] To achieve the above object, the present invention adopts the following technical solutions:
[0006] A method for realizing seamless switching of centralized bypass power supply in a data center computer room comprises the following steps:
[0007] S1. Lead a cable from the backup switch of the bypass transformer to the upper switch side of the UPS on each floor. Add a set of backup power input switch and main input switch in the substation on each floor, and interlock the backup power input switch with the main input switch.
[0008] S2: When the power supply to the computer room is normal, close the main input switch, the backup power input switch is automatically disconnected, the UPS input master switch is closed, the city power supplies power to the substations on each floor, and then the substations on each floor close the main output switch to supply power to the computer rooms on each floor;
[0009] S3. When switching to the backup power supply, disconnect the main input switch, the backup power input switch will automatically close, the UPS input main switch will close, and the UPS input side will be switched to the backup power supply. During the switching period, the computer room will be powered by the UPS battery for a short time. After the switching, the backup power supply will supply power to the substations on each floor, and then the substations on each floor will close the main output switch to supply power to the computer rooms on each floor.
[0010] S4, when switching to the main bypass power supply, disconnect the UPS input main switch and the main output switch, close the external maintenance bypass output switch and the bypass transformer standby switch, and the main power will be supplied to the computer room through the bypass transformer standby switch and the external maintenance bypass output switch;
[0011] S5. When switching to the mains bypass and UPS internal maintenance bypass for power supply at the same time, close the UPS input main switch, main output switch, external maintenance bypass output switch, bypass transformer backup switch and backup power input switch. At this time, the mains power supplies the computer room through the main output switch and external maintenance bypass output switch at the same time.
[0012] Preferably, the floor substation includes a main transformer, one end of the main transformer is connected to a main main switch, one end of the main input switch is connected to one end of the main main switch, the other end of the main input switch is connected to one end of a UPS input main switch, one end of a cable connecting the backup power input switch is located between the main input switch and the UPS input main switch, the other end of the UPS input main switch is connected to an inverter circuit, a UPS power supply is connected to the inverter circuit, the main output switch and an external maintenance bypass output switch are connected in parallel at the other end of the inverter circuit, and one end of the external maintenance bypass output switch is connected to a bypass transformer backup switch, and the other end of the bypass transformer backup switch is connected to a backup transformer.
[0013] Preferably, the bypass transformer backup switch is connected in parallel with the main transformers of multiple floor substations, the inverter circuit is mainly composed of multiple transistors in parallel, an inductor L is connected in series to the drain of each transistor, one end of the inductor L is connected to the output end of the UPS input main switch, and the UPS battery is connected to the drain of multiple transistors.
[0014] Preferably, the interlocking of the backup power input switch and the main input switch means that the backup power input switch and the main input switch are not opened or closed at the same time, that is, the main input switch is closed when the backup power input switch is opened, and the main input switch is opened when the backup power input switch is closed.
[0015] Preferably, in step S2, when the computer room is powered normally, the main main switch is in a closed state, the main main switch receives the AC power and transmits it to the main input switch, which is then transmitted to the UPS input main switch via the main input switch, and then transmitted to the computer room via the inverter circuit and the main output switch. At this time, the UPS battery on the inverter circuit is in a charging state and does not directly supply power to the computer room.
[0016] Preferably, in step S3, the backup power supply is connected to one end of the backup transformer, the electric energy of the backup power supply is stepped up or down through the backup transformer, and then transmitted to the computer room for power supply by the bypass transformer backup switch, the backup power supply input switch, the UPS input main switch, the inverter circuit, and the main output switch.
[0017] Preferably, the backup power supply is replaced by AC power, and the UPS inverter is switched to a static bypass power supply directly supplied by AC power. The AC power is stepped up or down through the backup transformer, and then transmitted to the computer room for power supply through the bypass transformer backup switch, backup power input switch, UPS input main switch, inverter circuit, and main output switch.
[0018] Preferably, in step S4, when the mains bypass supplies power, the bypass transformer standby switch closes the main control channel loop, and the mains power first passes through the standby transformer, the bypass transformer standby switch main control loop and the external maintenance bypass output switch before supplying power to the computer room.
[0019] Preferably, in step S5, the situation where the mains bypass and the UPS internal maintenance bypass supply power simultaneously is suitable for the situation where the UPS needs maintenance but the load in the computer room still needs to maintain high reliability power supply.
[0020] Preferably, the UPS input main switch, main output switch, external maintenance bypass output switch, bypass transformer backup switch and backup power input switch are all closed to form a complex power supply network. The power supply network uses the city power to provide the main power supply to the computer room through the main output switch. At the same time, the UPS internal maintenance bypass also exists as a backup power supply, so that the city power bypass can quickly switch power supply when a failure occurs.
[0021] The method for realizing seamless switching of centralized bypass power supply in a data center computer room proposed by the present invention has the following advantages compared with the prior art:
[0022] 1. The present invention leads a cable from the backup switch of the bypass transformer to the upper switch side of the UPS on each floor, adds a set of backup power input switch and main input switch in the transformer substation on each floor, and interlocks the backup power input switch with the main input switch. By closing or opening switches at different positions, the computer room is quickly switched from the normal power supply circuit to the bypass power supply, and the bypass power supply includes multiple situations of backup power supply, mains bypass power supply, mains bypass and UPS internal maintenance bypass power supply at the same time, so as to realize seamless switching of bypass power supply for the computer room, effectively avoid interruption of the power supply circuit, ensure power supply safety for the computer room and guarantee business continuity. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a flowchart of the present invention;
[0024] Figure 2 This is a system block diagram of a floor substation of the present invention;
[0025] Figure 3 A schematic diagram of the power flow when the present invention switches to internal static bypass power supply;
[0026] Figure 4 This is a schematic diagram of the flow of electric energy when the mains bypass and the internal maintenance bypass of the UPS supply power simultaneously. DETAILED DESCRIPTION
[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0028] The present invention provides Figure 1-4 A method for implementing seamless switching of centralized bypass power supply in a data center computer room shown includes the following steps:
[0029] S1. Lead a cable from the backup switch of the bypass transformer to the upper switch side of the UPS on each floor. Add a set of backup power input switch and main input switch in the substation on each floor, and interlock the backup power input switch with the main input switch.
[0030] The floor substation includes a main transformer, one end of the main transformer is connected to a main main switch, one end of the main input switch is connected to one end of the main main switch, the other end of the main input switch is connected to one end of a UPS input main switch, one end of a cable connected to the backup power input switch is located between the main input switch and the UPS input main switch, the backup power input switch is configured as a 4P switch, the other end of the UPS input main switch is connected to an inverter circuit, the inverter circuit is connected to a UPS power supply, the main output switch and an external maintenance bypass output switch are connected in parallel at the other end of the inverter circuit, one end of the external maintenance bypass output switch is connected to a bypass transformer backup switch, and the other end of the bypass transformer backup switch is connected to a backup transformer.
[0031] The bypass transformer backup switch is connected in parallel with the main transformers of the substations on multiple floors. The inverter circuit is mainly composed of multiple transistors in parallel. An inductor L is connected in series to the drain of each transistor. One end of the inductor L is connected to the output end of the UPS input main switch. The UPS battery is connected to the electrodes of multiple transistors. The source of the transistor is respectively connected to the main output switch and the external maintenance bypass output switch. By controlling the conduction and shutdown of the transistor, the voltage is adjusted and connected according to the load characteristics of the computer room.
[0032] The interlocking of the backup power input switch and the main input switch means that the backup power input switch and the main input switch are not opened or closed at the same time, that is, the main input switch is closed when the backup power input switch is opened, and the main input switch is opened when the backup power input switch is closed. The interlocking mechanism can prevent power conflicts caused by operational errors or equipment failures during the power switching process, thereby protecting circuits and equipment from potential hazards such as overload and short circuit.
[0033] S2: When the power supply to the computer room is normal, close the main input switch, the backup power input switch is automatically disconnected, the UPS input master switch is closed, the city power supplies power to the substations on each floor, and then the substations on each floor close the main output switch to supply power to the computer rooms on each floor;
[0034] When the computer room is powered normally, the main switch is in the closed state, the main switch receives the AC power and transmits it to the main input switch, which is then transmitted to the UPS input switch through the main input switch, and then transmitted to the computer room through the inverter circuit and the main output switch. At this time, the UPS battery on the inverter circuit is in a charging state and does not directly supply power to the computer room. In this state, the computer room load mainly receives power from the AC power through the main input switch, and the backup power input switch is in the disconnected state to ensure that the backup power supply will not be supplied at the same time as the main power supply to avoid power supply conflicts. The AC power is provided to the computer rooms on each floor through the main output switches of the substations on each floor to provide a stable power supply to the computer rooms on each floor.
[0035] S3. When switching to the backup power supply, disconnect the main input switch, the backup power input switch will automatically close, the UPS input main switch will close, and the UPS input side will be switched to the backup power supply. During the switching period, the computer room will be powered by the UPS battery for a short time. After the switching, the backup power supply will supply power to the substations on each floor, and then the substations on each floor will close the main output switch to supply power to the computer rooms on each floor.
[0036] The backup power supply is connected to one end of the backup transformer. The electric energy of the backup power supply is stepped up or down through the backup transformer, and then transmitted to the computer room for power supply by the bypass transformer backup switch, the backup power input switch, the UPS input main switch, the inverter circuit, and the main output switch. When the main power supply fails or requires maintenance, the main input switch is disconnected and the backup power input switch is automatically closed to realize power switching. During the switching process, the computer room load is temporarily powered by the battery inside the UPS to ensure the continuity of the power supply. After the switching is completed, the backup power supply provides power supply to the computer rooms on each floor through the UPS (at this time, the UPS serves as a voltage and frequency stabilizing device) and the main output switches of the substations on each floor.
[0037] Replace the backup power supply with the mains power, switch the UPS inverter to the static bypass power supply directly supplied by the mains power, the mains power is stepped up or down through the backup transformer, and then transmitted to the computer room for power supply through the bypass transformer backup switch, backup power input switch, UPS input main switch, inverter circuit, and main output switch. Figure 3 As shown, the TA-P1 transformer is a standby transformer. After the city power passes through the standby transformer TA-91, it is transmitted to the computer room through the 1AP04 channel of the bypass transformer standby switch, the standby power input switch 1UA55, the UPS input main switch 51A1, the inverter circuit, and the main output switch 5OA3. The TA-U1 / 5 transformer in the figure is the main transformer. In addition, in this state, the UPC can also be switched from static bypass power supply to internal maintenance bypass power supply.
[0038] S4, when switching to the main bypass power supply, disconnect the UPS input main switch and the main output switch, close the external maintenance bypass output switch and the bypass transformer standby switch, and the main power will be supplied to the computer room through the bypass transformer standby switch and the external maintenance bypass output switch;
[0039] When the mains bypass supplies power, the backup switch of the bypass transformer closes the main control channel loop, and the mains first passes through the backup transformer, the main control loop of the bypass transformer backup switch, and the external maintenance bypass output switch to supply power to the computer room. In this state, the computer room load is directly powered by the mains bypass without passing through the UPS. The UPS input main switch and the main output switch are disconnected to ensure that the UPS will not interfere with the power supply of the mains bypass. The mains provides power to the computer room through the backup transformer and the external maintenance bypass output switch. This power supply method is usually used when the UPS needs maintenance or fails to ensure that the computer room load can still be powered normally.
[0040] S5. When switching to the mains bypass and UPS internal maintenance bypass for power supply at the same time, close the UPS input main switch, main output switch, external maintenance bypass output switch, bypass transformer backup switch and backup power input switch. At this time, the mains power supplies the computer room through the main output switch and external maintenance bypass output switch at the same time.
[0041] The situation where the mains bypass and the UPS internal maintenance bypass provide power at the same time is suitable for situations where the UPS needs maintenance but the load in the computer room still needs to maintain high reliability power supply.
[0042] The UPS input main switch, main output switch, external maintenance bypass output switch, bypass transformer standby switch and standby power input switch are all closed to form a complex power supply network. The main power supply network uses the main output switch to provide the main power supply to the computer room. At the same time, the internal maintenance bypass of the UPS also exists as a standby power supply, so that the main bypass can quickly switch the power supply when a failure occurs. In this state, the computer room load receives power supply from the main bypass and the internal maintenance bypass of the UPS at the same time. The UPS input main switch, main output switch, external maintenance bypass output switch, bypass transformer standby switch and standby power input switch are all closed to form a complex power supply network. The main power supply uses the main output switch to provide the main power supply to the computer room. At the same time, the internal maintenance bypass of the UPS also exists as a standby power supply, ensuring that the power supply can be quickly switched when a failure occurs in the main bypass. Figure 4 As shown, one route of the city power passes through the standby transformer TA-91, and then is transmitted to the computer room through the 1AP04 channel of the bypass transformer standby switch, the standby power input switch 1UA55, the UPS input main switch 51A1, the inverter circuit, and the main output switch 5OA3. The other route of the city power passes through the standby transformer TA-91, and then is transmitted to the computer room through the 1AP03 channel of the bypass transformer standby switch and the external maintenance bypass output switch 5OA6.
[0043] By leading a cable from the backup switch of the bypass transformer to the upper switch side of the UPS on each floor, a set of backup power input switches and main input switches are added to the substation on each floor, and the backup power input switches and the main input switches are interlocked. By closing or opening switches in different positions, the computer room can be quickly switched from the normal power supply circuit to the bypass power supply. The bypass power supply includes backup power supply, mains bypass power supply, mains bypass and UPS internal maintenance bypass power supply at the same time, so as to achieve seamless switching of the bypass power supply to the computer room, effectively avoid interruption of the power supply circuit, ensure the power supply safety of the computer room and ensure business continuity.
[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A method for realizing seamless switching of centralized bypass power supply in a data center computer room, characterized in that: The steps include: S1. Lead a cable from the backup switch of the bypass transformer to the upper switch side of the UPS on each floor. Add a set of backup power input switch and main input switch in the substation on each floor, and interlock the backup power input switch with the main input switch. S2: When the power supply to the computer room is normal, close the main input switch, the backup power input switch is automatically disconnected, the UPS input master switch is closed, the city power supplies power to the substations on each floor, and then the substations on each floor close the main output switch to supply power to the computer rooms on each floor; S3. When switching to the backup power supply, disconnect the main input switch, the backup power input switch will automatically close, the UPS input main switch will close, and the UPS input side will be switched to the backup power supply. During the switching period, the computer room will be powered by the UPS battery for a short time. After the switching, the backup power supply will supply power to the substations on each floor, and then the substations on each floor will close the main output switch to supply power to the computer rooms on each floor. S4, when switching to the main bypass power supply, disconnect the UPS input main switch and the main output switch, close the external maintenance bypass output switch and the bypass transformer standby switch, and the main power will be supplied to the computer room through the bypass transformer standby switch and the external maintenance bypass output switch; S5. When switching to the mains bypass and UPS internal maintenance bypass for power supply at the same time, close the UPS input main switch, main output switch, external maintenance bypass output switch, bypass transformer backup switch and backup power input switch. At this time, the mains power supplies the computer room through the main output switch and external maintenance bypass output switch at the same time.
2. A method for realizing seamless switching of centralized bypass power supply in a data center computer room according to claim 1, characterized in that: The floor substation includes a main transformer, one end of the main transformer is connected to a main main switch, one end of the main input switch is connected to one end of the main main switch, the other end of the main input switch is connected to one end of a UPS input main switch, one end of a cable connecting the backup power input switch is located between the main input switch and the UPS input main switch, the other end of the UPS input main switch is connected to an inverter circuit, the inverter circuit is connected to a UPS power supply, the main output switch and an external maintenance bypass output switch are connected in parallel at the other end of the inverter circuit, and one end of the external maintenance bypass output switch is connected to a bypass transformer backup switch, and the other end of the bypass transformer backup switch is connected to a backup transformer.
3. A method for realizing seamless switching of centralized bypass power supply in a data center computer room according to claim 2, characterized in that: The bypass transformer backup switch is connected in parallel with the main transformers of multiple floor substations. The inverter circuit is mainly composed of multiple transistors in parallel. An inductor L is connected in series to the drain of each transistor. One end of the inductor L is connected to the output end of the UPS input main switch. The UPS battery is connected to the drain of multiple transistors.
4. A method for realizing seamless switching of centralized bypass power supply in a data center computer room according to claim 3, characterized in that: The interlocking of the backup power input switch and the main input switch means that the backup power input switch and the main input switch are not opened or closed at the same time, that is, the main input switch is closed when the backup power input switch is opened, and the main input switch is opened when the backup power input switch is closed.
5. A method for realizing seamless switching of centralized bypass power supply in a data center computer room according to claim 3, characterized in that: In step S2, when the computer room is powered normally, the main main switch is in a closed state, the main main switch receives the AC power and transmits it to the main input switch, which is then transmitted to the UPS input main switch, and then transmitted to the computer room through the inverter circuit and the main output switch. At this time, the UPS battery on the inverter circuit is in a charging state and does not directly supply power to the computer room.
6. A method for realizing seamless switching of centralized bypass power supply in a data center computer room according to claim 5, characterized in that: In step S3, the backup power supply is connected to one end of the backup transformer, the electric energy of the backup power supply is stepped up or down through the backup transformer, and then transmitted to the computer room for power supply through the bypass transformer backup switch, the backup power supply input switch, the UPS input main switch, the inverter circuit, and the main output switch.
7. A method for realizing seamless switching of centralized bypass power supply in a data center computer room according to claim 6, characterized in that: Replace the backup power supply with AC power, switch the UPS inverter to a static bypass power supply directly supplied by AC power, and the AC power is stepped up or down through the backup transformer, and then transmitted to the computer room for power supply through the bypass transformer backup switch, backup power input switch, UPS input main switch, inverter circuit, and main output switch.
8. A method for realizing seamless switching of centralized bypass power supply in a data center computer room according to claim 1, characterized in that: In step S4, when the mains bypass supplies power, the bypass transformer standby switch closes the main control channel loop, and the mains first passes through the standby transformer, the bypass transformer standby switch main control loop and the external maintenance bypass output switch before supplying power to the machine room.
9. A method for realizing seamless switching of centralized bypass power supply in a data center computer room according to claim 1, characterized in that: In step S5, the situation where the mains bypass and the UPS internal maintenance bypass supply power simultaneously is suitable for the situation where the UPS needs maintenance but the load in the computer room still needs to maintain high reliability power supply.
10. A method for realizing seamless switching of centralized bypass power supply in a data center computer room according to claim 9, characterized in that: The UPS input main switch, main output switch, external maintenance bypass output switch, bypass transformer backup switch and backup power input switch are all closed to form a complex power supply network. The power supply network uses the main power supply to provide the main power supply to the computer room through the main output switch. At the same time, the UPS internal maintenance bypass also exists as a backup power supply, so that the main power bypass can quickly switch power supply when a failure occurs.