Power supply module and data center

Abstract

The invention provides a power supply module and a data center, the data center comprises electric equipment, and the power supply module comprises a mains supply access end for accessing mains supply, a power supply rack, a PCS energy storage system and a DPS power supply system. The power supply rack is provided with double rows of buses used for being connected with a mains supply access end. The PCS energy storage system is connected with the mains supply access end; and the DPS power supply system is arranged in the power supply rack, the DPS power supply system is connected with the double-row bus, and the DPS power supply system is connected with the electric equipment. When the mains supply loses power, the DPS power supply system is firstly started, and the PCS energy storage system is then started. The PCS energy storage system with the small capacity is installed on the inner side of the power supply rack, the DPS power supply system with the large capacity is installed on the outer side of the power supply rack, when the mains supply loses power, the DPS power supply system on the inner side of the power supply rack preferentially supplies power, the PCS energy storage system on the outer side of the power supply rack delays to supply power, the space occupied by the power supply module for the data center is reduced, and the power supply efficiency is improved. And the power supply continuity and the power supply stability of the data center are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply systems, and in particular to a power supply module and a data center. Background Art

[0002] In the traditional data center power supply architecture, in order to ensure safety during power outages, a UPS power supply is installed in the computer room to provide uninterrupted power supply for the data center. For example, when the mains power is abnormal or interrupted, the UPS power supply can automatically switch to battery power supply mode to protect the connected equipment from damage. The UPS power supply can ensure the continuous operation of the data center. It provides backup power through the battery pack, which can usually maintain a power supply time of tens of minutes to several hours, ensuring that the equipment can continue to operate before the mains power is restored. The UPS power supply can also stabilize the mains power when the mains power is normal, output high-quality power, and charge the battery at the same time. However, the UPS power supply consists of components such as rectifiers, inverters, static switches, and battery packs. It is large in size, occupies the placement space of the data center, and reduces the space utilization rate of the data center. Summary of the invention

[0003] The main purpose of the present invention is to provide a power supply module and a data center, aiming to save the space occupied by the power supply module in the data center and improve the space utilization rate of the data center.

[0004] The present invention proposes a power supply module, which is applied to a data center, wherein the data center includes electrical equipment, and the power supply module includes: a mains access terminal for accessing the mains; a power supply rack, wherein the power supply rack has a double-row bus for connecting the mains access terminal; a PCS energy storage system, wherein the PCS energy storage system is connected to the mains access terminal; a DPS power supply system, wherein the DPS power supply system is arranged inside the power supply rack, the DPS power supply system is connected to the double-row bus, and the DPS power supply system is connected to the electrical equipment; when the mains power fails, the DPS power supply system is started first and supplies power to the electrical equipment, and the PCS energy storage system is started later and supplies power to the electrical equipment through the double-row bus.

[0005] In one embodiment, the capacity of the battery pack in the DPS power system is lower than the capacity of the battery pack in the PCS energy storage system.

[0006] In one embodiment, the mains power access terminal includes a first mains power access terminal and a second mains power access terminal, the double-row bus includes a first bus and a second bus, the first mains power access terminal is connected to the first bus, the second mains power access terminal is connected to the second bus, and the PCS energy storage system includes: a PCS conversion circuit and a first battery group, the PCS conversion circuit is connected to the second mains power access terminal, and the PCS conversion circuit is connected to the first battery group; the PCS conversion circuit is used to convert the mains power of the second mains power access terminal into a voltage and output it to power the first battery group when the second mains power access terminal is normally powered, and when the second mains power access terminal loses power, the voltage of the first battery group is converted into a voltage and outputted to power the electrical equipment.

[0007] In one embodiment, the DPS power supply system includes: a mains power connection line, a first connection line, a DPS conversion circuit and a second battery pack; the mains power connection line is used to connect the second bus and the power-consuming equipment, and the first connection line is used to connect the mains power connection line and the DPS conversion circuit; the DPS conversion circuit is respectively connected to the first bus, the second battery pack and the power-consuming equipment; the DPS conversion circuit is used to perform voltage-to-voltage conversion on the voltage of the second battery pack and output it to power the power-consuming equipment when both the first mains power access terminal and the second mains power access terminal lose power.

[0008] In one embodiment, the DPS power supply system includes: a first AC conversion circuit, a second AC conversion circuit and a switching unit; the input end of the switching unit is respectively connected to the first bus and the second bus, the output end of the switching unit is respectively connected to the first AC conversion circuit and the second AC conversion circuit, the output end of the first AC conversion circuit is connected to the power-consuming device, and the output end of the second AC conversion circuit is connected to the power-consuming device; the switching unit is used to control the first mains access terminal and the second mains access terminal to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal is normally powered, and when the first mains access terminal or the second mains access terminal loses power, the DPS input is switched to the second mains access terminal or the first mains access terminal to use the mains power to power the power-consuming device.

[0009] In one embodiment, the first AC conversion circuit includes a first AC DPS circuit and a third battery pack, and the second AC conversion circuit includes a second AC DPS circuit and a fourth battery pack; the output end of the switching unit is respectively connected to the first AC DPS circuit and the second AC DPS circuit, the first AC DPS circuit is respectively connected to the third battery pack and the electrical equipment, and the second AC DPS circuit is respectively connected to the fourth battery pack and the electrical equipment; the first AC DPS circuit is used to convert the voltage of the third battery pack and output it to power the electrical equipment; the second AC conversion circuit is used to convert the voltage of the fourth battery pack and output it to power the electrical equipment.

[0010] In one embodiment, the DPS power supply system includes: a first DC conversion circuit, a second DC conversion circuit and a switching unit; the input end of the switching unit is respectively connected to the first bus and the second bus, the output end of the switching unit is respectively connected to the first DC conversion circuit and the second DC conversion circuit, the output end of the first DC conversion circuit is connected to the power-consuming device, and the output end of the second DC conversion circuit is connected to the power-consuming device; the switching unit is used to control the first mains access terminal and the second mains access terminal to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal is normally powered, and control the first DC conversion circuit and the second DC conversion circuit to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal loses power.

[0011] In one embodiment, the first DC conversion circuit includes a first DC DPS circuit and a fifth battery pack, and the second DC conversion circuit includes a second DPS circuit and a sixth battery pack; the output end of the switching unit is respectively connected to the first DC DPS circuit and the second DC DPS circuit, the first DC DPS circuit is respectively connected to the fifth battery pack and the electrical equipment, and the second DC DPS circuit is respectively connected to the sixth battery pack and the electrical equipment; the first DC DPS circuit is used to convert the voltage of the fifth battery pack and output it to power the electrical equipment; the second DC conversion circuit is used to convert the voltage of the sixth battery pack and output it to power the electrical equipment.

[0012] In one embodiment, the DPS power supply system includes: a first AC conversion circuit, a first DC conversion circuit and a switching unit; the input end of the switching unit is respectively connected to the first bus and the second bus, the output end of the switching unit is respectively connected to the first AC conversion circuit and the first DC conversion circuit, the output end of the first AC conversion circuit is connected to the power-consuming device, and the output end of the first DC conversion circuit is connected to the power-consuming device; the switching unit is used to control the first mains access terminal and the second mains access terminal to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal is normally powered, and control the first AC conversion circuit and the first DC conversion circuit to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal loses power.

[0013] The present invention also provides a data center, which includes electrical equipment and the power supply module.

[0014] The present invention proposes a power supply module and a data center. The data center includes electrical equipment. The power supply module includes a mains access terminal for accessing the mains, an equipment rack, an energy storage module (including a PCS and an energy storage battery), a diesel generator, and a DPS power supply system (including a battery). The power supply rack has a dual-channel bus for connecting to the mains access terminal; the energy storage module is connected to the mains access terminal through a PCS module; the DPS power supply system is arranged inside the equipment rack, the DPS power supply system is connected to the dual-channel bus, and the output of the DPS power supply system is connected to the electrical equipment. The DPS works in an online mode, which can ensure that the equipment is powered on when the mains power fails. When the mains power fails or is abnormal, the DPS power supply system only uses a short-term discharge of the battery to ensure reliable operation of the equipment. The energy storage module is started later to provide a longer period of backup power, and the diesel generator can be started as needed. The present invention installs a DPS power system with a smaller battery capacity in the equipment rack, and installs an energy storage module with a larger battery capacity outside the equipment room. When the city power fails or is abnormal, the DPS discharges for a short time to ensure that the equipment is powered on. The energy storage module provides a longer backup time. On the one hand, the energy storage characteristics can be used to reduce peak loads and valley filling to reduce operating costs, and on the other hand, sufficient time can be provided for the diesel generator to start. The DPS battery capacity can be greatly reduced, thereby reducing the space occupied by the equipment rack. The use of a tiered backup power and emergency power supply solution can achieve better space utilization, better cost combination, and more reliable solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 A circuit structure diagram of a power supply module of the present invention configured with a diesel generator; Figure 2 This is a circuit flow chart of a power supply module of the present invention; Figure 3 This is a circuit structure diagram of a power supply module of the present invention; Figure 4 This is a circuit structure diagram of a power supply module of the present invention when it is applied to two-way alternating current power supply; Figure 5 This is a circuit structure diagram of a power supply module of the present invention when it is applied to two-way direct current power supply; Figure 6 This is a circuit structure diagram of another embodiment of a power supply module of the present invention when it is applied to two-way direct current power supply; Figure 7 This is a circuit structure diagram of a power supply module of the present invention when applied to a combined power supply of alternating current and direct current.

[0017] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0018] The following will be combined with the 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] It is understandable that in the power supply architecture of traditional data centers, in order to ensure safety during power outages, a UPS power supply is also integrated in the power module in the rack to provide uninterrupted power for the data center. For example, when the mains power in the power module is abnormal or interrupted, the UPS power supply can automatically switch to the battery power supply mode to protect the connected equipment from damage. At the same time, the UPS power supply can ensure the continuous operation of the data center, and provide backup power through the built-in battery pack, which can usually maintain a power supply time of tens of minutes to several hours, ensuring that the equipment can continue to operate before the mains power is restored. The UPS power supply can also stabilize the mains power when the mains power is normal, output high-quality power, and charge the battery at the same time. However, the UPS power supply is composed of rectifiers, inverters, static switches, battery packs and other components, and its size is large, which occupies the placement space of the data center and reduces the space utilization of the data center.

[0023] Therefore, in order to save the space occupied by the power supply module in the data center, the present invention proposes a power supply module, which is applied to the data center. The data center includes power-consuming equipment. Figure 2 , the power supply module comprises: A mains power access terminal is provided for accessing the mains power; A power supply rack, the power supply rack having a double-row busbar for connecting to the mains access terminal; A PCS energy storage system 10, wherein the PCS energy storage system 10 is connected to the mains access terminal; A DPS power supply system 20, wherein the DPS power supply system 20 is arranged inside the power supply rack, the DPS power supply system 20 is connected to the double-row busbar, and the DPS power supply system 20 is connected to the power-consuming equipment; When the mains power fails, the DPS power supply system 20 starts first and supplies power to the power-consuming equipment, and then the PCS energy storage system 10 starts and supplies power to the power-consuming equipment through the double-row busbars.

[0024] It is understandable that in the power supply architecture of the traditional data center, in order to ensure safety during power failure, a UPS power supply needs to be integrated in a large space in the power supply module in the rack. The UPS power supply with large space integration is usually expensive, and for some data centers with limited budgets, it may increase the construction and operation costs. In addition, the rack space of the data center is usually limited, and the installation of a UPS power supply with large space integration may take up a lot of space, affecting the installation and layout of other equipment. It should be pointed out that although the UPS power supply can provide backup power, it may also fail. If the UPS power supply fails, the power supply of the entire rack may be interrupted. In order to maintain the stable power supply of the data center under the condition of saving the space occupied by the power supply module in the data center, the present invention replaces the UPS power supply on the inside of the power supply rack with a PCS energy storage system 10 with a smaller capacity, and installs the DPS power supply system 20 with a larger capacity on the outside of the power supply rack. The stable power supply of the data center is achieved by the DPS power supply system 20 on the inside of the power supply rack and the PCS energy storage system 10 on the outside of the power supply rack, which not only reduces the space occupied by the power supply module in the data center, but also improves the reliability and scalability of the power supply module.

[0025] In this embodiment, the power supply module includes a mains access terminal, a power supply rack, a PCS energy storage system 10 and a DPS power supply system 20. Among them, the PCS energy storage system 10 is arranged outside the power supply rack and connected to the mains access terminal; the DPS power supply system 20 is arranged inside the power supply rack and connected to the double-row busbar and the power-consuming equipment. When the mains is in a normal power supply state, the power supply voltage output by the mains is successively output to the power-consuming equipment through the mains access terminal, the double-row busbar, and the DPS power supply system 20, thereby realizing the function of direct mains power supply to the data center; when the mains loses power, that is, when the mains is in an abnormal power supply state, the DPS power supply system 20 responds quickly and outputs the power supply voltage to the power-consuming equipment to ensure that the power-consuming equipment will not be suddenly powered off and operate in a short-term stable state. In the process of the DPS power supply system 20 supplying power to the power-consuming equipment, the PCS energy storage system 10 is started, and the power supply voltage outputted by it is finally outputted to the power-consuming equipment through the mains access terminal, the double-row busbar, and the DPS power supply system 20 in sequence, and finally the DPS power supply system 20 and the PCS energy storage system 10 jointly supply power to the data center. With such a configuration, in this embodiment, the smaller-capacity PCS energy storage system 10 replaces the UPS power supply inside the power supply rack, and the larger-capacity DPS power supply system 20 is installed outside the power supply rack. The DPS power supply system 20 inside the power supply rack is used for priority power supply, and the PCS energy storage system 10 outside the power supply rack is used for delayed power supply, thereby ensuring the power supply continuity and stability of the data center, which not only reduces the space occupied by the power supply module in the data center, but also improves the reliability and scalability of the power supply module.

[0026] In addition, when one of the two mains loses power, the load is powered for a short time, and when both inputs lose power, the load is powered uninterruptedly until the input end resumes normal power supply (mains power is restored or the PCS energy storage system 10 is discharged). That is, when one of the mains loses power, the switching unit switches the input end of the DPS power supply system 20 from the lost end to the other normal mains; when both inputs lose power, the DPS power supply system 20 supplies power, and the switching unit does not need to operate at this time.

[0027] It should be understood that the DPS power supply system 20 includes a DPS conversion circuit, which is implemented by a dynamic power supply circuit and is mainly used to quickly respond to power changes in the power supply module, and can achieve power switching or adjustment in a short time. For example, once the dynamic power supply circuit detects a fluctuation in the mains power or a circuit failure, it can be quickly started to ensure the short-term stable operation of the power supply module. And ensure the power supply continuity of the electrical equipment. The PCS energy storage system 10 includes a PCS conversion circuit, which is implemented by an energy storage inverter and is mainly used for energy conversion between the battery pack in the power supply module and the mains power or load. Its work often involves more complex control logic and a larger-scale energy conversion process. For example, when the energy storage inverter detects that the mains power is disconnected, the energy storage inverter not only needs to convert power, but also needs to consider multiple factors such as the battery status, protection mechanism, and coordination with other systems, which makes its response relatively require more time for comprehensive judgment and preparation. Therefore, when the city power fails, the DPS power system 20 responds quickly and gives priority to powering the electrical equipment, and the PCS energy storage system 10 starts later, ultimately achieving the effect of the DPS power system 20 and the PCS energy storage system 10 supplying power together.

[0028] In another embodiment, referring to Figure 1The power supply module in the circuit structure diagram is configured with a diesel generator, and the power supply module is also provided with a relay K and an ATS (Automatic Transfer Switch). The first end of the relay K is connected to the mains input 2, the first end of the ATS is respectively connected to the PCS energy storage system 10 and the second end of the relay K, the second end of the ATS is connected to the diesel generator, and the third end of the ATS is connected to the double-row bus. It should be understood that when the mains power is normal, the PCS energy storage system 10 is controlled to meet the grid response requirements, realize the peak shaving and valley filling application, or control the energy storage system to be in a hot standby state to meet the uninterrupted power supply to the load at any time when the mains power fails. Since the PCS energy storage system 10 can quickly respond to changes in power demand, when the power load of the electrical equipment increases instantly or the power grid fluctuates briefly, the PCS energy storage system 10 can quickly release power to maintain the stable operation of the data center. Its response time is usually at the millisecond level, which can provide instant power support for electrical equipment. On the other hand, the diesel generator has a longer continuous power supply capacity. In the case of a long power outage, the diesel generator can start and continue to provide power to the data center. It can be used as the main backup power supply to ensure the normal operation of the data center for a long time. Therefore, when the PCS energy storage system 10 and the diesel generator are used as backup power modules to supply power to the power users at the same time, they can achieve complementary advantages. For example, in the early stage of a fault, the PCS energy storage system 10 can provide power immediately as an energy storage system to buy time for starting the diesel generator. After the diesel generator is started, it can undertake the main power supply task. At the same time, the PCS energy storage system 10 can be used as a supplement to continue to provide power support when the diesel generator fails or requires maintenance. Therefore, the PCS energy storage system 10 is controlled to start, and then the diesel generator is controlled to start. The PCS energy storage system 10 can respond and provide power instantly. When the mains fails or needs to be switched, it can immediately fill the power gap and achieve seamless switching, thereby ensuring power supply continuity. In actual applications, when the mains is abnormal, the control relay K disconnects the path between the mains input 2 and the PCS energy storage system 10, thereby avoiding the short circuit between the mains 380Vac recovery and the PCS energy storage system 10 output. Control ATS to switch on the path between PCS energy storage system 10 and power consumption equipment, and control PCS energy storage system 10 and diesel generator to start. At this time, PCS energy storage system 10 outputs voltage to power consumption equipment first. When diesel generator can be successfully started and output power is stable, control ATS to switch on the path between diesel generator and power consumption equipment, and use diesel generator to supply power to data center, so that diesel generator can be used as backup power supply module to supply power to power consumption equipment. Such setting can prevent unstable shutdown of diesel generator during power supply, thereby ensuring the continuity of power supply of backup power supply.

[0029] The present invention proposes a power supply module, which is applied to a data center, and the data center includes electrical equipment. The power supply module includes a mains access terminal for accessing the mains, a power supply rack, a PCS energy storage system 10 and a DPS power supply system 20. Among them, the power supply rack has a double-row busbar for connecting to the mains access terminal; the PCS energy storage system 10 is connected to the mains access terminal; the DPS power supply system 20 is arranged inside the power supply rack, the DPS power supply system 20 is connected to the double-row busbar, and the DPS power supply system 20 is connected to the electrical equipment. In actual applications, when the mains power fails, the DPS power supply system 20 responds quickly and outputs the power supply voltage to the electrical equipment, and operates in a short-term stable state. The PCS energy storage system 10 is started later, and is finally output to the electrical equipment through the mains access terminal, the double-row busbar, and the DPS power supply system 20 in sequence, so as to achieve the effect of the DPS power supply system 20 and the PCS energy storage system 10 jointly supplying power to the data center. The present invention replaces the UPS power supply inside the power supply rack with a smaller-capacity PCS energy storage system 10, and installs a larger-capacity DPS power supply system 20 outside the power supply rack. The DPS power supply system 20 inside the power supply rack provides power first, and the PCS energy storage system 10 outside the power supply rack provides power later, thereby ensuring the power supply continuity and stability of the data center, which not only reduces the space occupied by the power supply module in the data center, but also improves the reliability and scalability of the power supply module.

[0030] In one embodiment, referring to Figure 2 , the capacity of the battery pack in the DPS power supply system 20 is lower than the capacity of the battery pack in the PCS energy storage system 10.

[0031] It is understandable that the battery capacity inside the DPS power system 20 should be lower than the battery capacity inside the PCS energy storage system 10, so that power-type batteries can be used in the DPS power system 20 and energy-type batteries can be used in the PCS energy storage system 10. In addition, due to the limited space of the power supply rack in the data center, setting up a large-space integrated UPS power supply will occupy a large amount of space in the power supply rack and occupy a large weight of the power supply rack. In order to save the space occupied by the power supply module in the data center and improve the space utilization rate of the data center, in this embodiment, the capacity of the battery pack in the DPS power system 20 is set to be lower than the capacity of the battery pack in the PCS energy storage system 10. In this way, the larger-capacity PCS energy storage system 10 is placed outside the power supply rack, reducing the weight of the power supply rack and saving the space occupied by the power supply rack. For the internal space of the power supply rack, removing the large-capacity battery pack can release a certain amount of space, making the internal layout of the power supply rack more flexible and reducing the congestion caused by the space occupied by the battery pack.

[0032] In one embodiment, referring to Figure 3The mains access terminal includes a first mains access terminal and a second mains access terminal, the double-row bus includes a first bus and a second bus, the first mains access terminal is connected to the first bus, the second mains access terminal is connected to the second bus, and the PCS energy storage system 10 includes: A PCS conversion circuit 11 and a first battery pack 12, wherein the PCS conversion circuit 11 is connected to the second mains access terminal, and the PCS conversion circuit 11 is connected to the first battery pack 12; The PCS conversion circuit 11 is used to convert the voltage of the AC power at the second AC power access end and output it to power the first battery group 12 when the second AC power access end is normally powered, and to convert the voltage of the first battery group 12 and output it to power the electrical equipment when the second AC power access end loses power.

[0033] It is understandable that in this embodiment, in order to prevent line failures, such as line damage, substation failure, unexpected power outages, etc., the data center will immediately lose the mains supply, resulting in business interruption, and a first mains access terminal and a second mains access terminal are provided. The first mains access terminal is used to access the first mains, and the second mains access terminal is used to access the second mains, so as to achieve the effect of two-way mains power supply. When two mains power supplies are used, when one mains has a problem, the other mains can continue to supply power to the data center, greatly reducing the power outage time caused by mains failure and ensuring the continuous operation of the data center. In addition, two mains power supplies can provide a larger total power supply capacity to meet the power supply of the power supply module during high load or peak demand.

[0034] In addition, in this embodiment, the PCS conversion circuit 11 and the first battery group 12 are arranged outside the power supply rack, and the PCS conversion circuit 11 is connected to the second mains access terminal. The PCS conversion circuit 11 and the first battery group 12 are used together to realize the conversion and storage of electric energy. The PCS conversion circuit 11 is specifically implemented by an energy storage inverter. When the second mains power is cut off, the PCS conversion circuit 11 can switch to the battery power supply mode, and the battery voltage of the first battery group 12 is converted from DC to AC and then output. The AC power output by the PCS conversion circuit 11 passes through the second mains access terminal and the first bus DPS power supply system 20 in sequence and is finally output to the power-consuming equipment, so as to provide emergency power supply for the power-consuming equipment, ensure the continuous operation of the power-consuming equipment, avoid the interruption of data center business or equipment damage caused by the failure of the second mains power, and greatly improve the continuity and stability of power supply.

[0035] In one embodiment, referring to Figure 3 , the DPS power supply system 20 includes: a mains connection line, a first connection line, a conversion circuit 30, and the conversion circuit 30 includes a DPS conversion circuit 31 and a second battery pack 32; The mains connection line is used to connect the second busbar and the power-consuming device, and the first connection line is used to connect the mains connection line and the DPS conversion circuit 31; The DPS conversion circuit 31 is connected to the first bus, the second battery pack 32 and the power-consuming equipment respectively; the DPS conversion circuit 31 is used to convert the voltage of the second battery pack 32 into a voltage-to-voltage conversion and output it to power the power-consuming equipment when both the first mains power access terminal and the second mains power access terminal lose power.

[0036] It can be understood that, in this embodiment, referring to Figure 3 The DPS power supply system 20 is composed of a mains connection line, a first connection line, a DPS conversion circuit 31 and a second battery pack 32. The DPS conversion circuit 31 is implemented using a dynamic power supply circuit, which is mainly used to quickly respond to power changes in the power supply module and can achieve power switching or adjustment in a short time.

[0037] In actual applications, a first voltage monitoring circuit is provided inside the DPS conversion circuit 31, which is used to continuously monitor the mains voltage connected to the first bus and the second bus in real time. Among them, the first voltage monitoring circuit is set with a voltage threshold range. When the mains voltage monitored by the first voltage monitoring circuit is within the voltage threshold range, it is determined that the mains is in a normal access state; when the mains voltage monitored by the first voltage monitoring circuit exceeds the voltage threshold range, such as detecting that the mains voltage is lower than the lower limit of the normal working voltage or detecting that the mains voltage is close to zero, it will be judged that the mains access is abnormal. For example, the voltage range is set to 220V±10% (i.e. 198V-242V). When the voltage value monitored by the first voltage monitoring circuit is lower than 198V or the voltage cannot be detected directly, it will be judged that the mains access is abnormal. The DPS conversion circuit 31 is also provided with a first control circuit. When it is determined that the mains access is abnormal, the first control circuit of the DPS conversion circuit 31 performs a DC-AC conversion process on the voltage of the second battery pack 32, or a DC-DC conversion process, and outputs the processed voltage of the second battery pack 32 to the electrical equipment to power the electrical equipment. When the DPS conversion circuit 31 is an AC DPS conversion circuit 31, the first control circuit of the AC DPS conversion circuit 31 performs a DC-AC conversion process on the voltage of the second battery pack 32 and outputs it to power the electrical equipment; when the DPS conversion circuit 31 is a DC DPS conversion circuit 31, the first control circuit of the DC DPS conversion circuit 31 performs a DC-DC conversion process on the voltage of the second battery pack 32 and outputs it to power the electrical equipment.

[0038] It should be understood that, since the DPS conversion circuit 31 is connected to the first bus and the second bus at the same time through the first connecting line, the DPS conversion circuit 31 accesses the mains voltage of the first and second mains through the first bus and the second bus. When the DPS conversion circuit 31 determines that the mains access is abnormal, it means that the first mains access terminal and the second mains access terminal are both out of power. In this way, the first bus and the second bus are connected through the first connecting line to establish a connection relationship, ensuring that the DPS conversion circuit 31 is allowed to output voltage only when the first and second mains are out of power. It can ensure that when the first and second mains are powered normally, the DPS conversion circuit 31 is in a standby state and will not output voltage at will, avoiding unnecessary energy consumption and potential system interference, and can effectively prevent the voltage conflict between the mains voltage and the voltage of the DPS conversion circuit 31, avoiding the problems of current reverse flow and voltage instability, which affect the normal operation of the power supply module, and increase the reliability, stability and emergency response capability of the DPS conversion circuit 31.

[0039] In one embodiment, referring to Figure 4 , the DPS power supply system 20 includes: a first AC conversion circuit 40, a second AC conversion circuit 50 and a switching unit 80; The input end of the switching unit 80 is connected to the first bus and the second bus respectively, the output end of the switching unit 80 is connected to the first AC conversion circuit 40 and the second AC conversion circuit 50 respectively, the output end of the first AC conversion circuit 40 is connected to the electrical device, and the output end of the second AC conversion circuit 50 is connected to the electrical device; The switching unit 80 is used to control the first mains access terminal and the second mains access terminal to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal is supplying power normally, and to switch the input of the DPS power supply system 20 to the second mains access terminal or the first mains access terminal when the first mains access terminal or the second mains access terminal loses power, so as to use the mains power to supply power to the power-consuming device.

[0040] It is understandable that when the first mains access terminal or the second mains access terminal loses power, the input of the DPS power supply system 20 is switched to the second mains access terminal or the first mains access terminal, so that the DPS power supply system 20 can use the mains to power the load as much as possible and reduce the battery discharge time. In other words, when one of the mains inputs loses power, the corresponding DPS power supply system 20 works in the battery discharge mode for a short time to provide uninterrupted short-term power supply to the load; when both mains power lines lose power, the DPS provides uninterrupted power supply to the load through battery discharge until the input power supply is restored (mains power or PCS discharge). With this arrangement, the battery needs to support continuous power supply to the load when the switching unit is switched, without the need for the battery to power the load for a long time, thereby reducing the battery capacity and volume and saving cabinet space.

[0041] The first AC conversion circuit 40 includes a first AC DPS circuit 41 and a third battery pack 42, and the second AC conversion circuit 50 includes a second AC DPS circuit 51 and a fourth battery pack 52; The output end of the switching unit 80 is connected to the first AC DPS circuit 41 and the second AC DPS circuit 51 respectively, the first AC DPS circuit 41 is connected to the third battery pack 42 and the electric device respectively, and the second AC DPS circuit 51 is connected to the fourth battery pack 52 and the electric device respectively; The first AC DPS circuit 41 is used for converting the voltage of the third battery pack 42 and outputting the voltage to supply power to the electrical equipment; The second AC conversion circuit 50 is used to convert the voltage of the fourth battery pack 52 and output the converted voltage to supply power to the electrical equipment.

[0042] It can be understood that, in this embodiment, referring to Figure 4 The DPS power supply system 20 is composed of two AC conversion circuits and a switching unit 80. The first AC conversion circuit 40 includes a first AC DPS circuit 41 and a third battery pack 42, and the second AC conversion circuit 50 includes a second AC DPS circuit 51 and a fourth battery pack 52.

[0043] In practical applications, the switching unit 80 is used to switch to normal AC power supply when one of the AC power lines is lost; when both AC power lines are disconnected, the switching unit 80 does not work and controls the output voltage of the first AC conversion circuit 40 and the second AC conversion circuit 50.

[0044] For example, when the voltage of the first mains is within the voltage threshold range, it is determined that the first mains is in a normal access state, and when the voltage of the second mains exceeds the voltage threshold range, it is determined that the second mains access is abnormal, and the switching unit 80 switches to the first mains for power supply. On the contrary, when the first mains is abnormal, the switching unit 80 switches to the second mains for power supply. When both mains are disconnected, the DPS power supply system supplies power, and the first AC DPS circuit 41 and the second AC DPS circuit 51 serve as conversion devices to convert the voltage of the battery pack into a suitable AC voltage and output it to the power-consuming device. Specifically, the first AC DPS circuit 41 starts and outputs the voltage of the third battery pack 42 after DC-AC conversion processing to power the power-consuming device, and the second AC DPS circuit 51 starts and outputs the voltage of the fourth battery pack 52 after DC-AC conversion processing to power the power-consuming device. In this way, the effect of two-way AC voltage conversion is achieved by setting two AC conversion circuits. When there is a problem with the AC voltage conversion of one channel, the AC voltage conversion of the other channel can continue to power the data center to ensure the continuous operation of the data center.

[0045] In one embodiment, referring to Figure 5 , the DPS power supply system 20 includes: a first DC conversion circuit 60, a second DC conversion circuit 70 and a switching unit 80; The input end of the switching unit 80 is connected to the first bus and the second bus respectively, the output end of the switching unit 80 is connected to the first DC conversion circuit 60 and the second DC conversion circuit 70 respectively, the output end of the first DC conversion circuit 60 is connected to the electric device, and the output end of the second DC conversion circuit 70 is connected to the electric device; The switching unit 80 is used to control the first mains access terminal and the second mains access terminal to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal is supplying power normally, and to control the first DC conversion circuit 60 and the second DC conversion circuit 70 to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal loses power.

[0046] The first DC conversion circuit 60 includes a first DC DPS circuit 61 and a fifth battery pack 62, and the second DC conversion circuit 70 includes a second DPS circuit and a sixth battery pack 72; The output end of the switching unit 80 is connected to the first DC DPS circuit 61 and the second DC DPS circuit 71 respectively, the first DC DPS circuit 61 is connected to the fifth battery pack 62 and the electrical device respectively, and the second DC DPS circuit 71 is connected to the sixth battery pack 72 and the electrical device respectively; The first DC DPS circuit 61 is used for converting the voltage of the fifth battery pack 62 and outputting the voltage to supply power to the electrical equipment; The second DC conversion circuit 70 is used for converting the voltage of the sixth battery pack 72 and outputting the converted voltage to supply power to the electrical equipment.

[0047] It can be understood that, in this embodiment, referring to Figure 5 The DPS power supply system 20 is composed of two DC conversion circuits and a switching unit 80. The first DC conversion circuit 60 includes a first DC DPS circuit 61 and a fifth battery pack 62, and the second DC conversion circuit 70 includes a second DC DPS circuit 71 and a sixth battery pack 72.

[0048] In practical applications, the switching unit 80 is used to switch to normal mains power supply when one mains power line fails; when both mains power lines are disconnected, the switching unit 80 does not work, and the first DC conversion circuit 60 and the second DC conversion circuit 70 output voltage.

[0049] For example, when the voltage of the first mains is within the voltage threshold range, it is determined that the first mains is in a normal access state, and when the voltage of the second mains exceeds the voltage threshold range, it is determined that the second mains access is abnormal, and the switching unit 80 switches to the first mains for power supply. On the contrary, when the first mains is abnormal, the switching unit 80 switches to the second mains for power supply. When both mains are disconnected, the DPS power supply system supplies power, and the first DC DPS circuit 61 and the second DC DPS circuit 71 will serve as conversion devices to convert the voltage of the battery pack into a suitable DC voltage and output it to the power-consuming device. Specifically, the first DC DPS circuit 61 starts and outputs the voltage of the fifth battery pack 62 after DC-DC conversion processing to power the power-consuming device, and the second DC DPS circuit 71 starts and outputs the voltage of the sixth battery pack 72 after DC-DC conversion processing to power the power-consuming device. In this way, the effect of two-way DC voltage conversion is achieved by setting two DC conversion circuits. When a problem occurs in one DC voltage conversion, the other DC voltage conversion can continue to power the data center to ensure the continuous operation of the data center.

[0050] In one embodiment, referring to Figure 6 , the output end of the fifth battery pack 62 is connected to the electrical device, and the output end of the sixth battery pack 72 is connected to the electrical device; The fifth battery pack 62 is used to output the first battery voltage to the power-consuming device; The sixth battery pack 72 is used to output a second battery voltage to the power-consuming device.

[0051] It can be understood that, in this embodiment, referring to Figure 6, the output end of the fifth battery pack 62 is connected to the output end of the first DC DPS circuit 61, and the interconnection point is connected to the power device. At the same time, the output end of the sixth battery pack 72 is connected to the output end of the second DC DPS circuit 71, and the interconnection point is connected to the power device. The combination of the fifth battery pack 62 and the sixth battery pack 72 enables the power supply module to have four power supply paths. Multiple power supply paths can provide a larger total power supply capacity, which not only ensures the continuous operation of the data center, but also greatly improves the reliability of the power supply module.

[0052] In one embodiment, referring to Figure 7 , the DPS power supply system 20 includes: a first AC conversion circuit 40, a first DC conversion circuit 60 and a switching unit 80; The input end of the switching unit 80 is connected to the first bus and the second bus respectively, the output end of the switching unit 80 is connected to the first AC conversion circuit 40 and the first DC conversion circuit 60 respectively, the output end of the first AC conversion circuit 40 is connected to the electrical device, and the output end of the first DC conversion circuit 60 is connected to the electrical device; The switching unit 80 is used to control the first mains access terminal and the second mains access terminal to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal is supplying power normally, and to control the first AC conversion circuit 40 and the first DC conversion circuit 60 to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal loses power.

[0053] It can be understood that, in this embodiment, referring to Figure 7 , the DPS power supply system 20 is composed of an AC conversion circuit, a DC conversion circuit and a switching unit 80 to form an AC-DC hybrid conversion circuit. In practical applications, when both the first mains and the second mains are powered normally, the first mains and the second mains are output to the power-consuming equipment. The switching unit 80 is used to switch to the normal mains power supply when a certain mains fails; when both mains are disconnected, the switching unit 80 does not work, and the first AC conversion circuit 40 and the first DC conversion circuit 60 output voltage. Specifically, the first AC conversion circuit 40 and the first DC conversion circuit 60 are started, and the first AC conversion circuit 40 outputs the voltage of its internal battery pack to the power-consuming equipment after DC-AC processing, and the first DC conversion circuit 60 outputs the voltage of its internal battery pack to the power-consuming equipment after DC-DC processing. In this way, by setting an AC conversion circuit and a DC conversion circuit, the effect of the AC-DC hybrid conversion circuit is achieved, and the reliability and stability of the power supply module are increased.

[0054] It should be understood that the power supply module described in the above embodiments represents an energy storage device. The technology can also be in the form of capacitors, flywheels, etc., all of which are part of the design content of this patent.

[0055] The present invention further provides a data center, which includes electrical equipment and a power supply module as described in the above embodiment. The specific circuit structure of the data center refers to the above embodiment. Since the data center adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0056] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A power supply module, characterized in that: Applied to a data center, the data center includes power-consuming equipment, and the power supply module includes: A mains power access terminal is provided for accessing the mains power; A power supply rack, the power supply rack having a double-row busbar for connecting to the mains access terminal; A PCS energy storage system, wherein the PCS energy storage system is connected to the mains access terminal; A DPS power supply system, wherein the DPS power supply system is arranged inside the power supply rack, the DPS power supply system is connected to the double-row busbar, and the DPS power supply system is connected to the power-consuming equipment; When the mains power fails, the DPS power supply system starts first and supplies power to the electrical equipment, and then the PCS energy storage system starts and supplies power to the electrical equipment through the double-row busbars.

2. The power supply module according to claim 1, characterized in that: The capacity of the battery pack in the DPS power supply system is lower than the capacity of the battery pack in the PCS energy storage system.

3. The power supply module according to claim 1, characterized in that: The mains access terminal includes a first mains access terminal and a second mains access terminal, the double-row busbar includes a first busbar and a second busbar, the first mains access terminal is connected to the first busbar, the second mains access terminal is connected to the second busbar, and the PCS energy storage system includes: A PCS conversion circuit and a first battery pack, wherein the PCS conversion circuit is connected to the second mains access terminal, and the PCS conversion circuit is connected to the first battery pack; The PCS conversion circuit is used to convert the voltage of the AC power at the second AC power access end and output it to power the first battery group when the second AC power access end is supplying power normally, and to convert the voltage of the first battery group and output it to power the electrical equipment when the second AC power access end loses power.

4. The power supply module according to claim 3, characterized in that: The DPS power supply system comprises: a mains connection line, a first connection line, a DPS conversion circuit and a second battery pack; The mains connection line is used to connect the second busbar and the power-consuming device, and the first connection line is used to connect the mains connection line and the DPS conversion circuit; The DPS conversion circuit is connected to the first bus, the second battery pack and the power-consuming equipment respectively; the DPS conversion circuit is used to convert the voltage of the second battery pack into voltage and output it to power the power-consuming equipment when both the first mains power access terminal and the second mains power access terminal lose power.

5. The power supply module according to claim 3, characterized in that: The DPS power supply system comprises: a first AC conversion circuit, a second AC conversion circuit and a switching unit; The input end of the switching unit is connected to the first bus and the second bus respectively, the output end of the switching unit is connected to the first AC conversion circuit and the second AC conversion circuit respectively, the output end of the first AC conversion circuit is connected to the electrical device, and the output end of the second AC conversion circuit is connected to the electrical device; The switching unit is used to control the first mains power access terminal and the second mains power access terminal to supply power to the power-consuming equipment when the first mains power access terminal or the second mains power access terminal is supplying power normally, and to switch the DPS input to the second mains power access terminal or the first mains power access terminal when the first mains power access terminal or the second mains power access terminal loses power, so as to use the mains power to supply power to the power-consuming equipment.

6. The power supply module according to claim 5, characterized in that: The first AC conversion circuit includes a first AC DPS circuit and a third battery pack, and the second AC conversion circuit includes a second AC DPS circuit and a fourth battery pack; The output end of the switching unit is connected to the first AC DPS circuit and the second AC DPS circuit respectively, the first AC DPS circuit is connected to the third battery pack and the power-consuming device respectively, and the second AC DPS circuit is connected to the fourth battery pack and the power-consuming device respectively; The first AC DPS circuit is used to convert the voltage of the third battery pack and output it to power the power-consuming device; The second AC conversion circuit is used for converting the voltage of the fourth battery pack and outputting the converted voltage to supply power to the electrical equipment.

7. The power supply module according to claim 3, characterized in that: The DPS power supply system comprises: a first DC conversion circuit, a second DC conversion circuit and a switching unit; The input end of the switching unit is connected to the first bus and the second bus respectively, the output end of the switching unit is connected to the first DC conversion circuit and the second DC conversion circuit respectively, the output end of the first DC conversion circuit is connected to the electrical device, and the output end of the second DC conversion circuit is connected to the electrical device; The switching unit is used to control the first mains access terminal and the second mains access terminal to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal is supplying power normally, and to control the first DC conversion circuit and the second DC conversion circuit to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal loses power.

8. The power supply module according to claim 7, characterized in that: The first DC conversion circuit includes a first DC DPS circuit and a fifth battery pack, and the second DC conversion circuit includes a second DPS circuit and a sixth battery pack; The output end of the switching unit is connected to the first DC DPS circuit and the second DC DPS circuit respectively, the first DC DPS circuit is connected to the fifth battery pack and the power-consuming device respectively, and the second DC DPS circuit is connected to the sixth battery pack and the power-consuming device respectively; The first DC DPS circuit is used to convert the voltage of the fifth battery pack and output it to power the power-consuming device; The second DC conversion circuit is used for converting the voltage of the sixth battery pack and outputting the converted voltage to supply power to the electrical equipment.

9. The power supply module according to claim 3, characterized in that: The DPS power supply system comprises: a first AC conversion circuit, a first DC conversion circuit and a switching unit; The input end of the switching unit is connected to the first bus and the second bus respectively, the output end of the switching unit is connected to the first AC conversion circuit and the first DC conversion circuit respectively, the output end of the first AC conversion circuit is connected to the electrical device, and the output end of the first DC conversion circuit is connected to the electrical device; The switching unit is used to control the first mains access terminal and the second mains access terminal to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal is supplying power normally, and to control the first AC conversion circuit and the first DC conversion circuit to supply power to the power-consuming device when the first mains access terminal or the second mains access terminal loses power.

10. A data center, characterized in that: The data center includes electrical equipment and a power supply module as described in any one of claims 1-9.

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