Power supply system and cabinet

Abstract

A power supply system and a cabinet relate to the technical field of power supply management. The power supply system is used for supplying power to electric equipment in the cabinet, the power supply system comprises a power supply conversion unit and a power supply busbar, the power supply busbar comprises a plurality of segments, and the segments are mutually insulated. Wherein the power supply conversion unit is used for converting a power supply and distribution input power supply into a multi-path output power supply, and the power supply busbar is used for supplying power to electric equipment in a first area in the cabinet by a first output power supply in the multi-path output power supply through a first section in a plurality of sections. And enabling a second output power supply in the multi-path output power supply to pass through a second subsection in the plurality of subsections to supply power to electric equipment in a second area in the cabinet. According to the power supply system, the power supply output by the power conversion unit is partitioned, and the power supply bus is partitioned, so that partitioned power supply is realized, the service influence range when the power supply bus fails is effectively reduced on the premise of not sacrificing the number of products and the power density in a cabinet, and normal operation of other services is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of power supply management, and in particular to a power supply system and a cabinet. Background Art

[0002] In order to meet the data center's demand for computing or network resources, more and more data centers use cabinets to increase the density of devices that provide resources, such as servers and switches, thereby increasing the scale of resources provided by the data center. Among them, a cabinet is a stand-alone or self-supporting casing for housing electrical or electronic equipment. Cabinets can be divided into different types according to the different equipment they contain. For example, cabinets can include server cabinets, network cabinets, or hybrid cabinets. Among them, server cabinets accommodate computing devices such as servers, network cabinets accommodate network devices such as switches, fiber optic adapters, or fiber optic distribution frames, and hybrid cabinets accommodate different types of equipment, such as hybrid cabinets accommodating servers and switches.

[0003] The power supply system usually uses a centralized power supply method to supply power to the power-consuming devices contained in the cabinet. Taking a hybrid cabinet as an example, the cabinet contains a power conversion system, a cabinet management system, a power busbar, and power-consuming devices (also called the main working equipment of the cabinet), where the power-consuming devices may include servers and switches.

[0004] The power conversion system is responsible for converting the AC power or high-voltage DC power provided by the computer room into low-voltage DC power suitable for electrical equipment. The cabinet management system is responsible for the management of the power conversion system, as well as the management of electrical equipment such as servers and switches, and realizes data exchange between the power conversion system and electrical equipment such as servers. The power supply busbar is responsible for transmitting the low-voltage DC power output by the power conversion system to servers and switches at different heights through two positive and negative large-current copper bars, thereby supplying power to electrical equipment such as servers and switches, so that servers and switches can work normally.

[0005] However, when a short circuit occurs between the positive and negative poles of the power supply busbar or the power input stage (before the protection circuit) of the power-consuming equipment, the power-consuming equipment (such as servers and switches) on the entire cabinet DC bus will simultaneously enter a power-off abnormal mode, affecting the normal operation of the business. Summary of the invention

[0006] In response to the above problems, the present application provides a power supply system that can realize zoned power supply, effectively reduce the impact of power bus power failure on the business without sacrificing the number of products and power density in the cabinet, and ensure the normal operation of other businesses. The present application also provides a cabinet powered by the above power supply system.

[0007] In a first aspect, the present application provides a power supply system. The power supply system is used to supply power to electrical equipment in a cabinet. The power supply system includes a power conversion unit (or referred to as a power conversion system) and a power supply busbar. Among them, the power conversion unit is used to convert the power supply input power into a multi-channel output power supply. The power supply busbar may refer to a copper busbar or an aluminum busbar connecting the main switch and the switches in each branch circuit in the power supply system. The surface is usually insulated, and its main function is to serve as a conductor to connect the circuit. In the present application, the power supply busbar includes a plurality of segments, and the plurality of segments are insulated from each other. The power supply busbar is used to supply power to the electrical equipment in the first area of ​​the cabinet with the first output power of the multi-channel output power supply through the first segment of the plurality of segments, and to supply power to the electrical equipment in the second area of ​​the cabinet with the second output power of the multi-channel output power supply through the second segment of the plurality of segments.

[0008] The power supply system divides the output power of the power conversion system and the power supply bus (the bus of the power supply busbar) into zones, effectively reducing the scope of business impact when the power supply bus fails without sacrificing the number of products and power density. In addition, the power supply system does not increase system costs or change the architecture of the power supply bus, providing a highly reliable whole cabinet product solution for data centers.

[0009] In some possible implementations, the electrical equipment in the cabinet can be divided into multiple areas according to function, and the electrical equipment in each area includes computing equipment and network equipment. The power busbar is divided into the multiple segments based on the regional division results of the electrical equipment in the cabinet. For example, the number of areas divided by the electrical equipment in the cabinet is equal to the number of segments of the power busbar. Among them, the position (or height) of the segment (for example, the first segment) divided from the power busbar corresponds to the position or height of the electrical equipment in the corresponding area (for example, the first area). The position (or height) of the widest part of the remaining segment (for example, the second segment) in the power busbar corresponds to the position (or height) of the electrical equipment in the corresponding area (for example, the second area). Based on this, different segments of the power busbar can be docked with their respective corresponding areas, so as to supply power to the electrical equipment in their respective corresponding areas.

[0010] In this solution, each area includes fully functional electrical equipment, which avoids the situation where other areas cannot provide services due to lack of electrical equipment with specific functions (such as switches and other network equipment) when power supply abnormalities occur in some areas, thereby improving reliability.

[0011] In some possible implementations, the electrical equipment in the cabinet can be divided into multiple areas according to the distribution or density of the electrical equipment. For example, when the cabinet is a non-hybrid cabinet such as a server cabinet or a network cabinet, the electrical equipment in the cabinet can also be evenly divided into different areas according to the distribution or density of the electrical equipment. On the one hand, it can avoid the impact of the business when the power supply bus fails, and ensure the normal operation of other businesses. On the other hand, it can reduce the load of a single power supply bus, thereby reducing the current of a single power supply bus and ensuring safety.

[0012] In some possible implementations, the power supply and distribution input power source includes a first power supply and distribution input power source and a second power supply and distribution input power source. The first power supply and distribution input power source and the second power supply and distribution input power source may be unified AC input or high-voltage DC input provided by the computer room. The power conversion unit includes a plurality of power supply units (PSUs), a first group of PSUs (including one or more PSUs) among the plurality of PSUs is used to convert the first power supply and distribution input power source into the first output power source, and a second group of PSUs (including one or more PSUs) among the plurality of PSUs is used to convert the second power supply and distribution input power source into the second output power source.

[0013] In this way, the output power of the power conversion system can be partitioned. For example, the unified AC input and high-voltage DC input can be divided into multiple power supply area inputs, laying the foundation for partitioned power supply. When power supply abnormalities occur in individual power supply areas, the power-consuming equipment in the entire cabinet will not enter abnormal power-off mode, effectively reducing the impact of business when the power supply bus fails, and ensuring that other businesses can operate normally.

[0014] In some possible implementations, the power supply system may further include a cabinet management unit. The cabinet management unit has a power detection function, for example, detecting the power of the electrical equipment in at least one area in the cabinet or the output power of the power conversion unit. Accordingly, the cabinet management unit is used to issue a power adjustment prompt when the power of the electrical equipment in the target area meets the set conditions. The target area is at least one area in the first area or the second area, and the power adjustment prompt is used to prompt the user to adjust the PSU in the power conversion unit that supplies power to the target area.

[0015] The set condition may be that the load power is less than a preset value, or that the ratio of the load power to the output power is less than a preset ratio. If the cabinet management unit detects that the load power of the target area of ​​the cabinet is less than a preset value, or that the ratio of the load power to the output power is less than a preset ratio, it indicates that the target area is in a low load (low load) state. Based on this, the cabinet management unit may issue a power adjustment prompt, thereby prompting the operation and maintenance personnel to adjust the PSU in the power conversion unit that supplies power to the target area to reduce the output power, thereby avoiding waste of power resources.

[0016] In some possible implementations, the power supply system also includes a cabinet management unit. The cabinet management unit can support automatic power adjustment. Specifically, when the power of the electrical equipment in the target area meets the set conditions, the cabinet management unit adjusts the PSU in the power conversion unit that supplies power to the target area through the power gating circuit. Among them, the target area is at least one area in the first area or the second area, and the power gating circuit is used to gating the PSU in the power conversion unit so that the PSU supplies power, or not gating the PSU in the power conversion unit so that the PSU does not supply power, so that the output power can be adjusted. For example, when the cabinet management unit detects that the load power of the target area is less than a preset value, it can gating fewer PSUs in the power conversion unit that supplies power to the target area through the power gating circuit, thereby reducing the output power. On the one hand, adjustments can be made in a timely manner to improve adjustment efficiency, and on the other hand, manual operations can be reduced and operation and maintenance costs can be reduced.

[0017] In some possible implementations, taking into account that the load of some services shows periodic changes, for example, the load rate of some services is higher in specific time periods and lower in the remaining time periods, the cabinet management unit can also select different numbers of PSUs in different time periods based on this change pattern, thereby automatically adjusting the output power according to the time period.

[0018] Specifically, the cabinet management unit can detect the power (load power) of the electrical equipment in at least one area, determine the power distribution of the electrical equipment in at least one area, and when the power distribution of the electrical equipment in at least one area shows a periodic change trend, a first number of PSUs are selected through the power gating circuit in the first time period, and a second number of PSUs are selected through the power gating circuit in the second time period. The load rate in the first time period is higher than the load rate in the second time period, and the first number is greater than the second number. In this way, the output power of the power conversion unit can be adapted to meet higher-level business needs.

[0019] In some possible implementations, a first section of the power supply busbar is electrically connected to the first output power source and electrical equipment in the first area, and a second section of the power supply busbar is electrically connected to the second output power source and electrical equipment in the second area.

[0020] In this way, the first segment of the power supply busbar, the first output power supply (or the first group of PSUs), and the electrical equipment in the first area can form a power supply circuit. Similarly, the second segment of the power supply busbar, the second output power supply (or the second group of PSUs), and the electrical equipment in the second area can form a power supply circuit. The above power supply circuits are independent of each other and do not interfere with each other. Even if a power supply circuit has a power supply abnormality, it will not affect the power supply status of the electrical equipment in other power supply circuits, which greatly reduces the scope of business impact when the power supply of the power supply bus fails, and ensures that the electrical equipment in the power supply circuit without power supply abnormality can work normally.

[0021] In some possible implementations, the power supply system also includes a cabinet management unit (also referred to as a cabinet management system). The cabinet management unit is responsible for the management of the power conversion unit, as well as the management of power-consuming equipment such as servers and switches, and realizes data intercommunication between the power conversion unit and power-consuming equipment such as servers. Specifically, the cabinet management unit is used to report abnormal information when a power supply abnormality (also referred to as a fault) occurs in at least one of the multiple output power supplies. The abnormal information includes the area where the power supply abnormality occurs. For example, the cabinet management unit can report abnormal information to a data management system (such as a data center network management system) when a power supply abnormality occurs in at least one of the multiple output power supplies. In this way, the operation and maintenance personnel can take over quickly, thereby promptly troubleshooting the cause of the fault and repairing the fault.

[0022] In some possible implementations, the power supply system further includes a cabinet management unit (also referred to as a cabinet management system). The cabinet management unit is used to control a prompt unit of the cabinet to give an abnormal prompt when a power supply abnormality occurs in at least one of the multiple output power supplies. The prompt unit may include but is not limited to an indicator light and a buzzer. When the prompt units are different, the abnormal prompting method may be different.

[0023] For example, the cabinet management unit can control the indicator light to present a set color (e.g., red) or a set state (e.g., flashing) to provide an abnormal prompt (also called an alarm). For another example, the cabinet management unit can control the buzzer to emit a set sound to provide an abnormal prompt.

[0024] In this way, the operation and maintenance personnel on site (for example, in a computer room) can quickly locate the fault location according to the color or status of the indicator light, or according to the sound of the buzzer, thereby achieving efficient fault repair.

[0025] In some possible implementations, the cabinet management unit includes a power supply unit and a power monitoring circuit. Among them, the power supply unit can be a direct current to direct current (DC / DC) conversion circuit, which can also be referred to as a DC / DC circuit. The DC / DC circuit is used to convert the DC output power supply into a DC power supply that enables the electrical equipment to work. The voltage of the converted DC power supply can be equal to the rated voltage of the electrical equipment. Multiple output power supplies are connected to the power supply unit and connected to the power monitoring circuit through the power supply unit. In other words, the power supply unit is used to convert the multiple output power supplies into power supplies suitable for the electrical equipment to work, so that the electrical equipment can work normally. The power monitoring circuit is used to monitor the power supply status of the electrical equipment in at least one of the first area or the second area.

[0026] Among them, the power supply monitoring circuit can monitor the power supply status of the electrical equipment in at least one area in the first area or the second area by detecting the voltage of the electrical equipment in at least one area in the first area or the second area. In some possible implementations, the power supply monitoring circuit may include one or more voltage followers (also referred to as voltage follower circuits). The voltage follower is a common collector circuit, in which the signal is input from the base and output from the emitter, so it is also called an emitter follower. The base voltage and the collector voltage have the same phase, that is, the input voltage and the output voltage are in phase, that is, the voltage amplification factor of the voltage follower is always less than and close to 1. Therefore, the voltage of the electrical equipment can be detected by a voltage follower.

[0027] In the method, the cabinet management unit monitors the power supply status of the electrical equipment in at least one of the first area or the second area through the power supply monitoring circuit, can timely detect power supply anomalies, and make a rapid and efficient response to the power supply anomalies, thereby avoiding the business being unable to provide services for a long time and ensuring service quality.

[0028] In some possible implementations, the cabinet management unit and the power conversion unit share a backplane. In other words, the cabinet management unit and the power conversion unit use the same backplane. The backplane surface has a plurality of slots to connect other printed circuit boards or electronic components. Accordingly, the multi-channel output power supply can be connected to the power supply unit through the backplane. For example, the multi-channel output power supply can be connected to the power supply unit through the circuit or slot in the backplane.

[0029] In this way, there is no need to configure additional wires and connectors for connecting multiple output power supplies and power supply units, which can reduce the area of ​​the power supply system and avoid occupying too much space in the cabinet, thereby avoiding affecting the density or power of electrical equipment in the cabinet.

[0030] In a second aspect, the present application provides a cabinet. The cabinet includes a housing and a power supply system as described in the first aspect of the present application. The housing is also referred to as a cabinet body, and can generally be a stand-alone housing or a self-supporting housing. The housing can be used to accommodate the power supply system, and the power supply system can supply power to the electrical equipment accommodated in the housing.

[0031] In the cabinet of the present application, the power supply system includes a power conversion unit and a power supply busbar, and the power supply busbar includes multiple sections. The power supply system effectively reduces the scope of business impact when the power supply bus fails without sacrificing the number of products and power density by dividing the output power of the power conversion system and the power supply bus (the bus of the power supply busbar). In addition, the power supply system does not increase the system cost or change the architecture of the power supply bus, thereby providing a highly reliable whole cabinet product.

[0032] In some possible implementations, the cabinet further includes an electrical device, and the power supply system is used to supply power to the electrical device. The cabinet provider may contain the electrical device in the casing when the cabinet is shipped. The cabinet provider may not provide the electrical device when the cabinet is shipped, and the user may obtain the electrical device by himself (for example, purchase the electrical device by himself) and contain it in the casing. In this way, the cabinet can be customized according to user needs to meet the cost and convenience requirements of different users.

[0033] In some possible implementations, the power-consuming device includes a computing device or a network device, for example, the power-consuming device may include at least one of the following: a server, a switch, a fiber optic adapter, and a fiber optic distribution frame. In this way, a server cabinet, a network cabinet, or a hybrid cabinet capable of partitioned power supply can be provided to meet the power supply requirements of users for cabinets with different functions.

[0034] Based on the implementations provided in the above aspects, this application can also be further combined to provide more implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical method of the embodiments of the present application, the drawings required for use in the embodiments are briefly introduced below.

[0036] Figure 1 A schematic diagram of a power supply system provided in an embodiment of the present application for supplying power to electrical equipment in a cabinet;

[0037] Figure 2 A schematic diagram of the architecture of a power supply system provided in an embodiment of the present application;

[0038] Figure 3 A side view of a power supply system provided in an embodiment of the present application;

[0039] Figure 4A schematic diagram of the structure of a power conversion unit provided in an embodiment of the present application;

[0040] Figure 5 A schematic diagram of the structure of a cabinet management unit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] To facilitate understanding, the technical terms involved in this application are first introduced.

[0042] The power supply system is a system that supplies and delivers electrical energy to power-consuming devices. Power-consuming devices refer to devices that need to be powered on to operate or work. Depending on their functions, power-consuming devices can be divided into computing devices and network devices. Computing devices can include servers, and network devices can include but are not limited to switches, fiber optic adapters, and fiber optic distribution frames.

[0043] Next, the power supply system and cabinet provided by the present application are explained in detail with reference to the accompanying drawings.

[0044] Data centers usually use cabinets to accommodate electrical equipment to increase the density of electrical equipment, thereby increasing the scale of resources provided by the data center and meeting the data center's needs for computing or network resources. Cabinets can be divided into different types according to the electrical equipment they accommodate. For example, cabinets can include server cabinets, network cabinets, or hybrid cabinets. Among them, server cabinets accommodate computing equipment such as servers, network cabinets accommodate network equipment such as switches, fiber optic adapters, or fiber optic distribution frames, and hybrid cabinets accommodate different types of equipment, such as hybrid cabinets accommodating servers and switches. For ease of description, the following examples are all explained using hybrid cabinets.

[0045] The power supply system usually uses a centralized power supply method to supply power to the electrical equipment contained in the cabinet. Figure 1 As shown, the power supply system includes a power conversion system ① (also called a power conversion unit), a cabinet management system ② (also called a cabinet management unit) and a power supply bus ③. The power supply bus ③ refers to the copper or aluminum bus that connects the main switch and the switches in each branch circuit in the power supply system. The surface is usually insulated, and its main function is to serve as a conductor to connect the circuit. The power supply system can be housed in a cabinet to supply power to the electrical equipment ④ (also called the main working equipment of the cabinet) housed in the cabinet. Among them, the cabinet includes a cabinet body (such as a casing) and electrical equipment ④, and the electrical equipment ④ includes servers and switches. The cabinet body accommodates the above-mentioned servers and switches.

[0046] The process of centralized power supply includes: the power conversion system ① converts the AC power or high-voltage DC power provided by the computer room into low-voltage DC power, the cabinet management system ② manages the power conversion system ①, as well as manages power-consuming equipment such as servers and switches ④, and exchanges data between the power conversion system ① and power-consuming equipment such as servers ④, and the power supply bus ③ transmits the DC power output by the power conversion system ① through two large-current copper buses, positive and negative, to servers and switches at different heights, thereby supplying power to power-consuming equipment such as servers and switches ④ and making the servers and switches work.

[0047] However, when a short circuit occurs between the positive and negative poles of the power input stage (before the protection circuit) of the power supply busbar ③ or the power-consuming equipment ④, the power-consuming equipment (such as servers and switches) on the entire cabinet DC bus (such as the bus of the power supply busbar ③) may simultaneously enter a power-off abnormal mode, affecting the normal operation of the business.

[0048] In view of this, the present application provides a power supply system that can supply power to electrical equipment in a cabinet in different areas (referred to as zone power supply). The power supply system divides the power conversion system and the power supply bus into zones, and effectively reduces the scope of business impact when the power supply bus fails without sacrificing the number of products and power density. In addition, the power supply system does not increase the system cost or change the architecture of the power supply bus, and provides a highly reliable whole cabinet product solution (such as a rack server) for the data center.

[0049] In order to make the technical solution of the present application clearer and easier to understand, the power supply system of the present application is introduced below with reference to the accompanying drawings.

[0050] See also Figure 2 A block diagram of a power supply system is shown, in which the power supply system 200 is used to supply power to the power-consuming device 102 in the cabinet 100, and the power supply system 200 includes a power conversion unit 202 (also referred to as a power conversion system) and a power supply bus 204, the power supply bus 204 includes a plurality of segments, and the plurality of segments of the power supply bus 204 are insulated from each other. For example, the power supply bus 204 may include a first segment 204A and a second segment 204B, and the first segment 204A and the second segment 204B are insulated from each other.

[0051] The power conversion unit 202 is used to convert the power supply input power into multiple output power supplies. Among them, the power supply input power can be the AC power or high-voltage DC power provided by the computer room. The above-mentioned AC power or high-voltage DC power provided by the computer room is usually the unified AC power or high-voltage DC power for different cabinets. The multiple output power supplies can be multiple low-voltage DC power. The power conversion unit 202 can be a switch mode power supply. The low-voltage DC power output by the power conversion unit 202 after a power conversion is usually more stable and suitable for the operation of electrical equipment. For example, the voltage of the AC power or high-voltage DC power provided by the computer room can be between 100V and 250V, and the voltage of the low-voltage DC power output by the power conversion unit 202 can be stabilized at 12V, 5V or 3.3V. The power supply bus 204 is used to supply power to the power equipment 102A in the first area of ​​the cabinet 100 with the first output power of the multiple power supplies through the first segment 204A among the multiple segments, and to supply power to the power equipment 102B in the second area of ​​the cabinet 100 with the second output power of the multiple output power supplies through the second segment 204B among the multiple segments.

[0052] The electrical equipment 102 in the cabinet 100 can be divided into multiple areas according to their functions. The electrical equipment 102 in each area includes computing equipment (such as servers) and network equipment (such as switches). In this way, each area includes fully functional electrical equipment 102, which prevents other areas from being unable to provide services due to the lack of electrical equipment 102 with specific functions (such as switches) when power supply abnormalities occur in some areas, thereby improving reliability. Figure 2 In the example, the electrical equipment 102 in the cabinet 100 includes several servers and switches, and the servers are symmetrically distributed around the switch. Based on this, the servers and cabinets in the upper half of the cabinet 100 can be divided into one area, and the servers and cabinets in the lower half can be divided into another area.

[0053] In some possible implementations, the power busbar 204 can be divided into multiple segments based on the regional division result of the power equipment 102 in the cabinet 100. Specifically, the number of regions divided by the power equipment 102 in the cabinet 100 is equal to the number of segments of the power busbar 204. Among them, the position (or height) of the segment (for example, the first segment 204A) divided from the power busbar 204 corresponds to the position or height of the power equipment in the corresponding area (for example, the power equipment 102A in the first area). In this way, the first segment 204A of the power busbar 204 can be electrically connected to the power equipment 102A in the first area. Similarly, the position (or height) of the widest part of the remaining segment (for example, the second segment 204B) in the power busbar 204 corresponds to the position (or height) of the power equipment in the corresponding area (for example, the power equipment 102B in the second area). In this way, the second segment 204B of the power busbar 204 can be electrically connected to the power equipment 102B in the second area.

[0054] The power supply busbar 204 can be cut into multiple segments so that the multiple segments are isolated in space. Furthermore, in order to ensure insulation, the gaps between the multiple segments can be filled with insulating materials to ensure mutual insulation between the multiple segments.

[0055] It should be noted that Figure 2 This is only an illustrative way of partitioning the electrical equipment 102 in the cabinet 100 and segmenting the power busbar 204. The electrical equipment 102 in the cabinet 100 may have other regional division results according to different functions, distributions, and densities of the electrical equipment 102 in the cabinet 100. For example, the electrical equipment 102 in the cabinet 100 may be divided into more regions, and the power busbar 204 may be divided into more segments.

[0056] In which, the power conversion unit 202 may include a first power conversion unit 202A (also referred to as a first power conversion subsystem) and a second power conversion unit 202B (also referred to as a second power conversion subsystem), the first power conversion unit 202A is used to convert the power supply input power into a first output power, and the second power conversion unit 202B is used to convert the power supply input power into a second output power.

[0057] Figure 3A side view of the power supply system 200 is also shown, wherein the first power conversion unit 202A is electrically connected to the power consumer 102A in the first area via the first segment 204A of the power supply busbar 204. In other words, the first segment 204A of the power supply busbar 204 is electrically connected to the first output power supply and the power consumer 102A in the first area, and the second power conversion unit 202B is connected to the power consumer 102B in the second area via the second segment 204B of the power supply busbar 204. In other words, the second segment 204B of the power supply busbar 204 is electrically connected to the second output power supply and the power consumer 102B in the second area. In this way, the first output power obtained by the first power conversion unit 202A converting the power distribution input power can be transmitted to the power equipment 102A in the first area through the first segment 204A of the power supply bus 204, thereby powering the power equipment 102A in the first area, and the second output power obtained by the second power conversion unit 202B converting the power distribution input power can be transmitted to the power equipment 102B in the second area through the second segment of the power supply bus 204.

[0058] It should be noted that the electrical equipment 102A in the first area includes one or more electrical equipment, for example Figure 2 or Figure 3 In the example of FIG. 1 , the power-consuming device 102A in the first area includes multiple servers and a switch. Similarly, the power-consuming device 102B in the second area includes one or more power-consuming devices, such as Figure 2 or Figure 3In the example, the power equipment 102B in the second area includes multiple servers and a switch. In addition, the terms "first" and "second" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. For example, the first area or the second area can be divided (split) into more areas, and the division of the above areas can be determined according to the functions of the power equipment 102 in the cabinet 100. Further, the division of the area can also be determined in combination with at least one of the distribution of the power equipment 102 in the cabinet 100 and the density of the power equipment 102 with different functions. For non-hybrid cabinets, such as server cabinets and network cabinets, they can also be directly divided based on the distribution and density of the power equipment 102. Based on the regional division results, the first segment 204A or the second segment 204B of the power supply bus 204 can be divided into more segments, and the first power conversion unit 202A or the second power conversion unit 202B can be divided into more power conversion units. Similarly, the electrical equipment 102A in the first area, the electrical equipment 102B in the second area, or the first section 204A, the second section 204B of the power supply bus 204, or A and B in the first power conversion unit 202A, the second power conversion unit 202B are merely used to distinguish one or some entities from another or other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0059] The power supply system 200 of the present application adopts the design of partitioned power supply for the entire cabinet. Under the premise of maintaining the power supply bus and the power supply architecture of the data center computer room, the primary power conversion unit output of the system is partitioned and the secondary power supply bus is segmented. When the secondary power supply busbar power supply in a single area is abnormal, it will not affect all equipment services in the entire cabinet, reduce the equipment failure domain, improve the reliability of data center services, and solve the pain points of computer room operation and maintenance, especially large-scale or ultra-large-scale business cluster application operation and maintenance.

[0060] Further, see Figure 2 The power supply system 200 further includes a cabinet management unit 206 (also referred to as a cabinet management system). The cabinet management unit 206 is used to report abnormal information when at least one of the multiple output power supplies has a power supply abnormality. The abnormal information includes the area where the power supply abnormality occurs. Further, the abnormal information may also include an abnormal mode and an abnormal cause. Among them, the abnormal mode may include but is not limited to an overvoltage and a undervoltage, and the abnormal cause may include a short circuit.

[0061] The cabinet management unit 206 is electrically connected to multiple segments (such as the first segment 204A and the second segment 204B) of the power supply busbar 204, and is electrically connected to the power conversion unit 202 (such as the first power conversion unit 202A and the second power conversion unit 202B). Based on this, the cabinet management unit 206 can detect the voltage of electrical equipment in different areas. When the power supply in a certain area is abnormal (such as too high voltage or too low voltage), the abnormality (also called a fault) is reported to the data management system so that the operation and maintenance personnel can quickly take over, thereby promptly confirming or troubleshooting the cause of the fault and repairing the fault.

[0062] In some possible implementations, the cabinet management unit 206 is also used to control the prompt unit of the cabinet 100 to give an abnormal prompt (or trigger an alarm) when a power supply abnormality occurs in at least one of the multiple output power supplies. The prompt unit includes but is not limited to an indicator light and a buzzer. For example, the cabinet management unit 206 can control the indicator light to present a set color (for example, red) or a set state (for example, a flashing state), thereby giving an abnormal prompt (alarm). For another example, the cabinet management unit 206 can control the buzzer to emit a set sound, thereby giving an abnormal prompt. In this way, the operation and maintenance personnel on site (for example, in a computer room) can quickly locate the fault location according to the color or state of the indicator light, or according to the sound emitted by the buzzer, thereby achieving efficient fault repair.

[0063] It should be noted that Figure 2 The first segment 204A and the second segment 204B of the power supply busbar 204 are partially blocked by the cabinet management unit 206. In fact, the cabinet management unit 206 is electrically connected to the first power conversion unit 202A through the first segment 204A of the power supply busbar 204, and is electrically connected to the second power conversion unit 202B through the second segment 204B of the power supply busbar 204, so as to obtain power. Figure 2 It is mainly used to describe the electrical connection relationship between different devices or equipment, and does not mean that the devices or equipment have Figure 2 The spatial position relationship shown in the figure, for example, the first segment 204A of the power supply busbar 204 can actually be in the groove of the second segment 204B of the power supply busbar 204, and the two can be insulated by an insulating material. Figure 2 In order to show the connection relationship between different segments of the power supply busbar 204 and the corresponding power conversion units and power-consuming devices, different segments of the power supply busbar 204 are displayed separately. Figure 3 It is also used to describe the electrical connection relationship between different devices or equipment, and does not mean that the devices or equipment exist as follows. Figure 3 The spatial position relationship shown.

[0064] Next, the structures and principles of the power conversion unit 202 and the cabinet management unit 206 in the power supply system 200 are further described.

[0065] See also Figure 4 A schematic diagram of the structure of a power conversion unit 202 is shown, and the power conversion unit 202 includes multiple power supply units (PSU). The PSU can be a switch mode power supply, and the input voltage can automatically adapt to the local mains parameters. Some PSUs can also adapt to the local mains parameters by adjusting the voltage switching switch. The input voltage of the PSU is generally between 100V and 250V. When the input of the PSU is AC, the AC frequency can usually be 50Hz or 60Hz. The PSU can output three stable DC voltages of 12V, 5V or 3.3V.

[0066] The first group of PSUs among the multiple PSUs (the PSUs in the first power conversion unit 202A, for example, PSU1 to PSU6) is used to convert the first power distribution input power in the power distribution input power of the computer room into the first output power, and the second group of PSUs among the multiple PSUs (the PSUs in the second power conversion unit 202B, for example, PSU7 to PSU12) is used to convert the second power distribution input power in the power distribution input power of the computer room into the second output power. The first output power and the second output power may be DC output power.

[0067] Furthermore, the power supply system 200 may include more power conversion units, for example, a third power conversion unit. Accordingly, the power supply system 200 may obtain more output power, for example, a third output power. The number of PSUs in different power conversion units may be equal or may be flexibly adjusted according to business needs. For example, Figure 4 In the example, the first power conversion unit and the second conversion unit each include 6 PSUs.

[0068] In this way, the power conversion unit 202 can be partitioned, laying the foundation for the partitioned power supply of the power supply system 200. Even if a single power domain (for functional modules operating at the same voltage and with cohesive functions, they can be divided into a logical group, and such a logical group is a power domain) is abnormal, it will not affect the operation of electrical equipment in other power domains, thereby reducing the impact range of power supply abnormalities.

[0069] It should be noted that Figure 4 It is an exemplary structure of the power conversion unit 202 and does not constitute a limitation on the power conversion unit 202 in the embodiment of the present application. The power conversion unit 202 can also use other methods or structures to convert the power supply input power (for example, the multi-channel power supply input power of the computer room) into a multi-channel output power.

[0070] Next, see Figure 5 A schematic diagram of the structure of a cabinet management unit 206 is shown, and the cabinet management unit 206 includes a power supply unit 2062 and a power monitoring circuit 2064. Among them, the power supply unit 2062 can be a direct current to direct current (DC / DC) conversion circuit, which can also be referred to as a DC / DC circuit or a DC / DC power supply. The DC / DC circuit is also called a secondary power supply in a communication system. It is provided with a DC input voltage by a primary power supply (such as the power output by the power conversion unit 202) or a DC battery pack. After DC / DC conversion, one or more DC output voltages can be obtained at the output end. The DC / DC conversion circuit is mainly divided into three categories: a voltage regulator circuit, a linear (analog) voltage regulator circuit, and a switching voltage regulator circuit. In this embodiment, the DC / DC circuit is used to convert the DC output power supply into a DC power supply that enables the power-consuming device 102 to work, and the voltage of the converted DC power supply can be equal to the rated voltage of the power-consuming device 102. The multi-channel output power supply is connected to the power supply unit 2062, and is connected to the power monitoring circuit through the power supply unit 2062. The power monitoring circuit 2064 is used to monitor the power supply status of the power-consuming device 102 in at least one of the first area or the second area.

[0071] Among them, the power supply monitoring circuit 2064 can monitor the power supply status of the power equipment 102 in at least one area of ​​the first area or the second area by detecting the voltage of the power equipment 102 in at least one area of ​​the first area or the second area. In some possible implementations, the power supply monitoring circuit 2064 may include one or more voltage followers (also referred to as voltage follower circuits). The voltage follower is a common collector circuit, and the signal is input from the base and output from the emitter, so it is also called an emitter follower. The base voltage and the collector voltage are in the same phase, that is, the input voltage and the output voltage are in phase, that is, the voltage amplification factor of the voltage follower is always less than and close to 1. Therefore, the voltage of the power equipment 102 can be detected by a voltage follower.

[0072] like Figure 5As shown, the cabinet management unit 206 also includes a processor 2066 and a network port 2068 (also referred to as a network port or a network interface). The processor 2066 may be a central processing unit (CPU). In other possible implementations of the embodiments of the present application, the processor 2066 may also be an application specific integrated circuit (ASIC). In some examples, the network port 2068 may be a wired network port, such as an Ethernet port. In other examples, the network port 2068 may also be a wireless network port, such as a wireless local area network (WLAN) network port. The signal output by the power supply unit 2062 is not only provided to the power monitoring circuit 2064, but also to the processor 2066. The voltage of the electrical device 102 detected by the power monitoring circuit 2064 may be transmitted to the processor 2066 via the communication bus. The processor 2066 can determine whether the voltage of the power consumption device 102 is within a set range (for example, an error range with the rated voltage as the center point). When the voltage of the power consumption device 102 is not within the set range, that is, outside the set range, it is determined that a power supply abnormality occurs in an output power supply corresponding to the power consumption device 102, and the processor 2066 can report abnormal information through the network port 2068. The abnormal information may include the area where the power supply abnormality occurs. Further, the abnormal information may also include an abnormal mode and an abnormal reason.

[0073] The cabinet management unit 206 also has a power detection function, specifically, detecting the power of the power-consuming device 102 in at least one area of ​​the cabinet 100 or the output power of the power conversion unit 202. Based on this, the cabinet management unit 206 can also be used to issue a power adjustment prompt when the power (load power) of the power-consuming device 102 in the target area meets the set conditions. The target area can be at least one of the first area or the second area, and the power adjustment prompt is used to prompt the user to adjust the PSU in the power conversion unit 202 that supplies power to the target area.

[0074] In some possible implementations, the set condition may be that the load power is less than a preset value, or that the ratio of the load power to the output power is less than a preset ratio. When the cabinet management unit 206 detects that the load power of the target area of ​​the cabinet 100 is less than a preset value, or that the ratio of the load power to the output power is less than a preset ratio, it indicates that the target area is in a low load (low load) state. Based on this, the cabinet management unit 206 may issue a power adjustment prompt, thereby prompting the operation and maintenance personnel to adjust the PSU in the power conversion unit 202 that supplies power to the target area to reduce the output power, thereby avoiding waste of power resources. For example, when the load power of the first area is less than a preset value, the cabinet management unit 206 may issue a power adjustment prompt by reporting to the data management center, thereby prompting the operation and maintenance personnel to adjust the PSU in the first power conversion unit 202, for example, to reduce the number of PSUs that supply power to the first area.

[0075] Furthermore, the cabinet management unit 206 also supports automatic power supply adjustment. Specifically, the cabinet management unit 206 is used to adjust the PSU in the power conversion unit that supplies power to the target area through the power gating circuit when the power of the electrical equipment in the target area (at least one of the first area or the second area) meets the set conditions. For example, when the cabinet management unit 206 detects that the load power of the target area is less than a preset value, it can use the power gating circuit to gate fewer PSUs in the power conversion unit that supplies power to the target area, thereby reducing the output power. On the one hand, adjustments can be made in a timely manner to improve adjustment efficiency, and on the other hand, manual operations can be reduced and operation and maintenance costs can be reduced.

[0076] In some possible implementations, taking into account that the load of some services shows periodic changes, for example, the load rate of some services is higher in specific time periods and lower in the remaining time periods, the cabinet management unit 206 can also select different numbers of PSUs in different time periods based on this change pattern, thereby automatically adjusting the output power according to the time period.

[0077] Specifically, the cabinet management unit 206 can detect the power (load power) of the electrical equipment in at least one area, determine the power distribution of the electrical equipment in at least one area, and when the power distribution of the electrical equipment in at least one area shows a periodic change trend, a first number of PSUs are selected through the power gating circuit in the first time period, and a second number of PSUs are selected through the power gating circuit in the second time period. The load rate in the first time period is higher than the load rate in the second time period, and the first number is greater than the second number. In this way, the output power of the power conversion unit can be adapted to meet higher-level business needs.

[0078] In some possible implementations, the cabinet management unit 206 and the power conversion unit 202 may share a backplane. In other words, the cabinet management unit 206 and the power conversion unit 202 use the same backplane. There are several slots on the surface of the backplane, which can be connected to other printed circuit boards or electronic components. Accordingly, the multi-channel output power supply can be connected to the power supply unit 2062 through the above-mentioned backplane. For example, the multi-channel output power supply converted by the power conversion unit 202 can be connected to the power supply unit 2062 of the cabinet management unit 206 through the circuit or slot of the backplane. In this way, there is no need to additionally configure wires and connectors connecting the multi-channel output power supply and the power supply unit 2062, which can reduce the area size of the power supply system 200, avoid occupying too much space in the cabinet, and thus avoid affecting the density or power of electrical equipment in the cabinet.

[0079] In this embodiment, when a power supply abnormality occurs in at least one of the multiple output power supplies, the cabinet management unit 206 can report the abnormality to the data management system (for example, the data center network management system) through software and hardware coordination, thereby realizing mutual monitoring of the power supply status of electrical equipment in multiple areas.

[0080] Based on the power supply system 200 provided in the above embodiment, the present application further provides a cabinet 100. Figure 2 The schematic diagram of the cabinet 100 shown in FIG. 1 includes a housing 104 and a power supply system 200 . The power supply system 200 is accommodated in the housing 104 and is used to supply power to the power-consuming device 102 accommodated in the housing 104 .

[0081] In the solution of the present application, the power supply system 200 includes a power conversion unit 202 and a power supply bus 204. The power supply bus 204 includes multiple segments, such as a first segment 204A and a second segment 204B. The power supply system 200 effectively reduces the impact of the business when the power supply of the power supply bus fails by partitioning the output power of the power conversion system and the power supply bus (the bus of the power supply bus) without sacrificing the number of products and power density. In addition, the power supply system 200 does not increase the system cost or change the architecture of the power supply bus, thereby providing a highly reliable whole cabinet product.

[0082] In some possible implementations, the cabinet 100 further includes an electric device 102. For example, the provider of the cabinet 100 may contain the electric device 102 in the housing 104 when the cabinet is shipped. The provider of the cabinet 100 may not provide the electric device 102 when the cabinet is shipped, and the user may obtain the electric device 102 by himself (for example, purchase the electric device 102 by himself) and contain it in the housing 104. In this way, the cabinet can be customized according to user needs to meet the needs of different users for cost and convenience.

[0083] The power-consuming equipment 102 includes at least one of the following: a server, a switch, an optical fiber adapter, and an optical fiber distribution frame. In this way, a server cabinet, a network cabinet, or a hybrid cabinet capable of partitioned power supply can be provided to meet the power supply requirements of users for cabinets with different functions.

[0084] Different from the traditional centralized power supply solution, Figure 2 In the cabinet 100, the power supply system 200 can realize power supply to the power equipment 102 in different areas separately (i.e., zoned power supply). The power supply of the entire cabinet is divided into multiple independent areas. If a single power domain is abnormal, it will not affect the operation of the power equipment 102 in other domains, thereby reducing the impact range of power supply abnormalities. Moreover, the power supply system 200 can realize voltage monitoring in different areas. When the power supply of the power equipment 102 in a certain area is abnormal, the fault can be reported to the data center management system so that the operation and maintenance personnel can quickly take over, thereby quickly troubleshooting the cause of the fault and repairing the fault.

[0085] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power supply system, characterized in that: The power supply system is used to supply power to the electrical equipment in the cabinet, and the power supply system includes a power conversion unit and a power supply busbar, wherein the power supply busbar includes a plurality of segments, and the plurality of segments are insulated from each other; The power conversion unit is used to convert the power supply input power into multiple output power supplies; The power supply busbar is used to supply power to electrical equipment in a first area of ​​the cabinet using a first output power supply among the multiple output power supplies through a first segment among the multiple segments, and to supply power to electrical equipment in a second area of ​​the cabinet using a second output power supply among the multiple output power supplies through a second segment among the multiple segments.

2. The power supply system according to claim 1, characterized in that: The electrical equipment in the cabinet is divided into multiple areas according to function, the electrical equipment in each area includes computing equipment and network equipment, and the power supply bus is divided into the multiple segments based on the area division result of the electrical equipment in the cabinet.

3. The power supply system according to claim 1 or 2, characterized in that: The power supply and distribution input power source includes a first power supply and distribution input power source and a second power supply and distribution input power source, the power conversion unit includes a plurality of power supply units PSU, a first group of PSUs among the plurality of PSUs is used to convert the first power supply and distribution input power source into the first output power source, and a second group of PSUs among the plurality of PSUs is used to convert the second power supply and distribution input power source into the second output power source.

4. The system according to claim 3, characterized in that The power supply system further comprises: The cabinet management unit is used to issue a power adjustment prompt when the power of the electrical equipment in the target area meets the set conditions. The target area is at least one of the first area or the second area. The power adjustment prompt is used to prompt the user to adjust the PSU in the power conversion unit that supplies power to the target area.

5. The system according to claim 3, characterized in that The power supply system further comprises: The cabinet management unit is used to adjust the PSU in the power conversion unit that supplies power to the target area through a power gating circuit when the power of the electrical equipment in the target area meets the set conditions. The target area is at least one of the first area or the second area.

6. The system according to claim 3, characterized in that The power supply system further comprises: A cabinet management unit is used to select a first number of PSUs through a power gating circuit in a first time period and a second number of PSUs through a power gating circuit in a second time period when the power distribution of electrical equipment in a target area presents a periodic change trend. The target area is at least one of the first area or the second area, the load rate in the first time period is higher than the load rate in the second time period, and the first number is greater than the second number.

7. The power supply system according to any one of claims 1 to 6, characterized in that: The power supply system further comprises: The cabinet management unit is used to report abnormal information when a power supply abnormality occurs in at least one of the multiple output power supplies, wherein the abnormal information includes an area where the power supply abnormality occurs.

8. The power supply system according to any one of claims 1 to 7, characterized in that: The power supply system further comprises: The cabinet management unit is used to control the prompt unit of the cabinet to give an abnormal prompt when a power supply abnormality occurs to at least one output power supply among the multiple output power supplies.

9. The power supply system according to claim 7 or 8, characterized in that: The cabinet management unit includes a power supply unit and a power supply monitoring circuit, the multi-channel output power supply is connected to the power supply unit, and is connected to the power supply monitoring circuit through the power supply unit; The power supply monitoring circuit is used to monitor the power supply status of electrical equipment in at least one of the first area or the second area.

10. The power supply system according to claim 9, characterized in that: The cabinet management unit and the power conversion unit share a backplane, and the multi-channel output power supply is connected to the power supply unit through the backplane.

11. The power supply system according to any one of claims 1 to 10, characterized in that: The first section of the power supply busbar is electrically connected to the first output power source and the electrical equipment in the first area, and the second section of the power supply busbar is electrically connected to the second output power source and the electrical equipment in the second area.

12. A cabinet, characterized in that: The cabinet comprises a casing and a power supply system according to any one of claims 1 to 11.

13. The cabinet according to claim 12, characterized in that: The cabinet also includes an electrical device, and the power supply system is used to supply power to the electrical device.

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