Power supply conversion unit, power supply system, power supply method and device for server

Abstract

The present invention discloses a power supply power conversion unit, a power supply system, a power supply method and a device for a server, and relates to the technical field of server power supply. The first power conversion module (open-loop control mode) and the second conversion module (closed-loop control mode) are used in different control modes, and are implemented differently in design, batch and manufacturing process, so as to avoid the instability of the system under the single control mode with the same design, batch and manufacturing process due to the conventional redundant configuration. The present invention combines the open-loop control mode and the closed-loop control mode through the connection mode of the first power conversion module and the second power conversion module respectively connected by the first switch and the second switch of the first switch matrix, thereby improving the stability and reliability of the system.

Description

Technical Field

[0001] The present invention relates to the technical field of server power supply, and in particular to a power supply power conversion unit, a power supply system, a server power supply method and equipment. Background Art

[0002] The N+N redundant configuration of the server power supply system is a high-availability design that ensures that when a part of the power modules fails, the remaining power modules can continue to supply load current, ensuring continuous operation and high reliability of the system.

[0003] In the N+N redundant configuration, the corresponding configuration modules are the same in design, batch and manufacturing process, that is, the power switching modules using the same control method reduce system stability, resulting in reduced reliability of the server power supply system.

[0004] Therefore, how to improve the stability and reliability of the server power supply system is an urgent problem that technical personnel in this field need to solve. Summary of the invention

[0005] The object of the present invention is to provide a power supply conversion unit, a power supply system, a power supply method and a device for a server, so as to solve the problem of reduced stability and reliability of a traditional server power supply system.

[0006] In order to solve the above technical problems, the present invention provides a power supply power conversion unit, comprising at least one first power conversion module and at least one second power conversion module; the control mode of the first power conversion module is an open-loop control mode, and the control mode of the second power conversion module is a closed-loop control mode;

[0007] The second end of the first switch of the first switch matrix is ​​connected to the first end of the first power conversion module; the second end of the second switch of the first switch matrix is ​​connected to the first end of the second power conversion module; the first power conversion module and the second power conversion module are connected in parallel; the second ends of the first power conversion module and the second power conversion module are respectively connected to a control unit; the control unit is connected to the first end of the first switch and the first end of the second switch; wherein, the number of the first switch and the first power conversion module, and the number of the second switch and the second power conversion module are the same.

[0008] On the one hand, it also includes a second switch matrix; wherein the second switch matrix includes a third switch and a fourth switch;

[0009] The first end of the third switch of the second switch matrix is ​​correspondingly connected to the second end of the first power conversion module; the first end of the fourth switch of the second switch matrix is ​​correspondingly connected to the second end of the second power conversion module; the number of the fourth switches is the same as the number of the second power conversion modules;

[0010] The second end of the third switch of the second switch matrix and the second end of the fourth switch are both connected to the control unit.

[0011] On the other hand, the number of the first power conversion modules is plural; the number of the third switches is the same as the number of the first power conversion modules;

[0012] The first end of each of the third switches is correspondingly connected to the second end of each of the first power conversion modules;

[0013] The second end of each of the third switches is connected to the control unit.

[0014] On the other hand, the number of the first power conversion modules is multiple; the number of the third switch is one;

[0015] The first ends of the third switches are connected to the second ends of the first power conversion modules;

[0016] The second end of the third switch is connected to the control unit.

[0017] On the other hand, when the control unit detects that the first power conversion module is faulty in the power supply state, it controls the first switch corresponding to the faulty first power conversion module to be disconnected, and controls the second switch corresponding to the second power conversion module to be closed to take over the power supply of the faulty first power conversion module.

[0018] On the other hand, the control unit is used to set the load point of the first power conversion module in the power-on state to a set load point; when it is detected that the first power conversion module in the power-on state has a fault, the load points of the target second power conversion module corresponding to the first power conversion module that replaces the faulty first power conversion module and the remaining first power conversion modules that have not had a fault are set to the set load point.

[0019] On the other hand, it also includes a fuse; the fuse includes a first fuse and a second fuse; the number of the first fuses is the same as the number of the first power conversion modules; the number of the second fuses is the same as the number of the second power conversion modules;

[0020] The second end of the first switch of the first switch matrix is ​​correspondingly connected to the first end of the first fuse; the second end of the first fuse is correspondingly connected to the first end of the first power conversion module;

[0021] The second end of the second switch of the first switch matrix is ​​correspondingly connected to the first end of the second fuse; the second end of the second fuse is correspondingly connected to the first end of the second power conversion module.

[0022] On the other hand, it also includes a first voltage and current detection module; the first voltage and current detection module includes a plurality of first sub-voltage and current detection modules and a plurality of second sub-voltage and current detection modules; and the number of the first sub-voltage and current detection modules is the same as the number of the first power conversion modules, and the number of the second sub-voltage and current detection modules is the same as the number of the second power conversion modules;

[0023] The first end of each of the first sub-voltage and current detection modules is respectively connected to the second end of each of the first power conversion modules; the second end of each of the first sub-voltage and current detection modules is respectively connected to the first end of the third switch;

[0024] The first end of each of the second sub-voltage and current detection modules is respectively connected to the second end of each of the second power conversion modules; the second end of each of the second sub-voltage and current detection modules is respectively connected to the first end of the fourth switch.

[0025] On the other hand, it also includes a second voltage and current detection module; the second voltage and current detection module includes a third sub-voltage and current detection module and a plurality of fourth sub-voltage and current detection modules; and the number of the fourth sub-voltage and current detection modules is the same as the number of the second power conversion modules;

[0026] The first end of the third sub-voltage and current detection module is connected to the second end of the first power conversion module; the second end of the third sub-voltage and current detection module is connected to the first end of the third switch;

[0027] The first end of each of the fourth sub-voltage and current detection modules is respectively connected to the second end of each of the second power conversion modules; the second end of each of the fourth sub-voltage and current detection modules is respectively connected to the first end of the fourth switch.

[0028] In order to solve the above technical problems, the present invention also provides a power supply system, including a bus power supply and the power supply power conversion unit;

[0029] The bus power supply, the power supply conversion unit and the control unit are connected;

[0030] The bus power supply is used to output a bus voltage, and the output bus voltage is reduced to a bus voltage corresponding to the control unit through the power supply conversion unit.

[0031] On the one hand, it also includes rectifiers;

[0032] The first end of the rectifier is connected to the bus power supply; the second end of the rectifier is connected to the first switch matrix of the power supply conversion unit;

[0033] The rectifier is used to convert the AC type of the bus voltage into a DC bus so as to facilitate input into the power supply conversion unit.

[0034] In order to solve the above technical problems, the present invention also provides a power supply method for a server, which is applied to a power supply power conversion unit, wherein the power supply power conversion unit includes at least one first power conversion module and at least one second power conversion module; the control mode of the first power conversion module is an open-loop control mode, and the control mode of the second power conversion module is a closed-loop control mode; the second end of the first switch of the first switch matrix is ​​correspondingly connected to the first end of the first power conversion module; the second end of the second switch of the first switch matrix is ​​correspondingly connected to the first end of the second power conversion module; the first power conversion module and the second power conversion module are connected in parallel; the second ends of the first power conversion module and the second power conversion module are respectively connected to a control unit; the control unit is connected to the first end of the first switch and the first end of the second switch; wherein the number of the first switch and the first power conversion module, and the number of the second switch and the second power conversion module are the same, and the method includes:

[0035] Monitoring the power supply status of the first power conversion module;

[0036] When it is detected that the parameter output by the first power conversion module in the power supply state is abnormal, the first switch corresponding to the first power conversion module with the abnormality is controlled to be disconnected;

[0037] The second switch corresponding to the second power conversion module is controlled to be closed to take over the power supply of the abnormal first power conversion module.

[0038] On the one hand, when the first power conversion module with the abnormality is in a fault state, and the load point of the first power conversion module in the power supply state is a set load point, the process of determining the fault state of the first power conversion module includes: obtaining the current current value output by each of the first power conversion modules;

[0039] When the current current value is greater than the load current corresponding to the set load point of the corresponding first power conversion module in the power supply state, it is determined that the state of the first power conversion module to which the current current value belongs is a fault state.

[0040] On the other hand, the process of determining the load current corresponding to the set load point of each of the first power conversion modules in the power supply state includes:

[0041] Obtaining a current total voltage value output by all first power conversion modules; wherein the current total voltage value is determined by a fixed transformation ratio of the first power conversion module and a bus voltage input to the power supply conversion unit;

[0042] Determining a preset power value according to a relationship between a total power value of the power supply conversion unit and the set load point;

[0043] Determine the load current corresponding to the set load point of all first power conversion modules in the power supply state according to the relationship between the preset power value and the current total voltage value;

[0044] The load current corresponding to the set load point of each first power conversion module in the power supply state is determined according to the load current corresponding to the set load point of all first power conversion modules in the power supply state and the number of all first power conversion modules.

[0045] On the other hand, when the abnormal first power conversion module is in a fault state and the load point of the first power conversion module in the power supply state is a set load point, the process of determining the fault state of the first power conversion module includes:

[0046] Obtaining a current power value output by each of the first power conversion modules;

[0047] Determine a preset power value according to the relationship between the total power value of the power supply power conversion unit and the set load point; and determine the load power of each of the first power conversion modules in the power supply state according to the preset power value and the number of all first power conversion modules;

[0048] In the case that the current power value is greater than the load power, it is determined that the state of the first power conversion module to which the current power value belongs is a fault state.

[0049] On the other hand, controlling the second switch corresponding to the second power conversion module to be closed to take over the power supply of the abnormal first power conversion module includes:

[0050] Obtaining a current total current value and a preset total current value output by all first power conversion modules;

[0051] Determining a corresponding load current according to the preset total current value and a set load point of each of the first power conversion modules in a power supply state;

[0052] Determine, according to the relationship between the current total current value and the load current, the current value to be borne by the second power conversion module in place of the first power conversion module having a fault;

[0053] The number of the second power conversion modules to be replaced is determined according to the relationship between the current value to be borne and the current value corresponding to each of the second power conversion modules, so as to control the second switches of the second power conversion modules corresponding to the number of replacement modules to be closed, and take over the power supply of the abnormal first power conversion module.

[0054] On the other hand, controlling the second switch corresponding to the second power conversion module to be closed to take over the power supply of the abnormal first power conversion module includes:

[0055] Acquire the number of all first power conversion modules and the number of abnormal first power conversion modules;

[0056] Determine a first power value according to a relationship between the current total power output by all first power conversion modules and the set load point;

[0057] Determine the power value borne by the first power conversion module with abnormality according to the first power value, the number of all first power conversion modules and the number of first power conversion modules with abnormality;

[0058] The number of successor second power conversion modules is determined based on the relationship between the power value borne by each second power conversion module and the power value borne by the first power conversion module with an abnormality, so as to control the second switches of the second power conversion modules corresponding to the successor number to be closed, and take over the power supply of the first power conversion module with an abnormality.

[0059] On the other hand, when the abnormal first power conversion module is in an instantaneous fluctuation state, controlling the second switch corresponding to the second power conversion module to be closed to take over the power supply of the abnormal first power conversion module includes:

[0060] Acquire a first output voltage, a first input voltage and a preset voltage range of the power supply conversion unit;

[0061] If the first input voltage exceeds a preset value, and the first output voltage exceeds the preset voltage range or does not reach the preset voltage range, then all first power conversion modules are determined to be in an instantaneous fluctuation state;

[0062] Determining a first voltage value or a second voltage value according to a relationship between the first output voltage and a maximum value or a minimum value of the preset voltage range;

[0063] Determining the number of the second power conversion modules borne by the second power conversion modules according to the relationship between the power value borne by each second power conversion module and the first voltage value or the second voltage value;

[0064] According to the number of the second power conversion modules, the second switch of the second power conversion module corresponding to the number of the second power conversion modules is controlled to close and supply power until the first input voltage does not exceed the preset value and switches to the corresponding working mode of the second power conversion module when the power supply state is reached.

[0065] In order to solve the above technical problems, the present invention further provides an electronic device, comprising:

[0066] Memory for storing computer programs;

[0067] A processor is used to implement the steps of the power supply method for the server when executing the computer program.

[0068] In order to solve the above technical problem, the present invention also provides a non-volatile storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the power supply method for the server as described above are implemented.

[0069] In order to solve the above technical problem, the present invention also provides a computer program product, including a computer program / instruction, which implements the steps of the server power supply method when executed by a processor.

[0070] The present invention provides a power supply power conversion unit, comprising at least one first power conversion module and at least one second power conversion module; the control mode of the first power conversion module is an open-loop control mode, and the control mode of the second power conversion module is a closed-loop control mode; the second end of the first switch of the first switch matrix is ​​correspondingly connected to the first end of the first power conversion module; the second end of the second switch of the first switch matrix is ​​correspondingly connected to the first end of the second power conversion module; the first power conversion module and the second power conversion module are connected in parallel; the second ends of the first power conversion module and the second power conversion module are respectively connected to a control unit; the control unit is connected to the first end of the first switch and the first end of the second switch; wherein the number of the first switch and the first power conversion module, and the number of the second switch and the second power conversion module are the same.

[0071] The beneficial effect of the present invention is that the control modes of the first power conversion module and the second conversion module are different. The power conversion modules using different control modes are implemented differently in design, batch and manufacturing process, thereby avoiding the occurrence of system instability under a single control mode with the same design, batch and manufacturing process due to conventional redundant configuration. The present invention combines the open-loop control mode and the closed-loop control mode by connecting the first switch and the second switch of the first switch matrix to the corresponding first power conversion module and the second power conversion module, thereby improving the stability and reliability of the system.

[0072] Secondly, the connection relationship between the first power conversion module and the second power conversion module under the two control modes and the third switch and the fourth switch of the second switch matrix ensures the isolation between the first power conversion module and the second power conversion module, and further ensures the perfection and control accuracy of the power supply control function of the power supply power conversion unit. The control modes of the first power conversion module and the second conversion module are different. The first power conversion module is preliminarily turned off by closing the first switch to put it in a power supply state. When the control unit detects that there is a fault in the first power conversion module, the first switch corresponding to the first power conversion module with the fault is disconnected, and the second switch corresponding to the target second power conversion module is controlled to be closed to replace the second power conversion module with the fault, so that the first power conversion module without the fault and the target second power conversion module that replaces the first power conversion module with the fault are in a power supply state. When the first power conversion module in the open-loop control mode fails, the second power conversion module in the closed-loop control mode takes over the work, avoiding the conventional redundant configuration due to the same design, batch and manufacturing process. If one configuration module fails, there is a hidden danger of failure in other configuration modules, thereby improving the reliability of the server power supply system. The connection relationship between the first voltage and current detection module and the second voltage and current detection module improves the connection diversity and flexibility of the power supply conversion unit. The fault monitoring mode of the first power conversion module is determined by power comparison to improve the accuracy of fault monitoring. At the same time, the comparison process of current parameters and power parameters improves the diversity and flexibility of fault monitoring. Whether by current mode or power mode, the number of successors of the second power conversion module can be determined to ensure that the second power conversion module that succeeds is at the set load point when working, thereby improving work efficiency and also improving the diversity and flexibility of the process of determining the number of successors.

[0073] In addition, the present invention also provides a power supply system, a power supply method and a device for a server, which have the same beneficial effects as the above-mentioned power supply power conversion unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. 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 these drawings without paying creative work.

[0075] Figure 1 A structural diagram of a power supply conversion unit provided in an embodiment of the present invention;

[0076] Figure 2 A structural diagram of another power supply conversion unit provided in an embodiment of the present invention;

[0077] Figure 3 A schematic diagram of the structure of a power supply system provided by an embodiment of the present invention;

[0078] Figure 4 A flow chart of a method for powering a server provided in an embodiment of the present invention;

[0079] Figure 5 A flow chart of another configuration method of a power supply conversion unit provided in an embodiment of the present invention;

[0080] Figure 6 A flowchart of another method for powering a server provided in an embodiment of the present invention;

[0081] Figure 7 A structural diagram of an electronic device provided by an embodiment of the present invention;

[0082] Figure 8 A schematic diagram of a module master control unit in a server mainboard provided by an embodiment of the present invention;

[0083] Fig. 9 A schematic diagram of an adjustable power conversion module control unit in a server mainboard provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0084] 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.

[0085] The core of the present invention is to provide a power supply conversion unit, a power supply system, a power supply method and a device for a server to solve the problem of reduced stability and reliability of a traditional server power supply system.

[0086] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0087] Conventional server power supply systems usually use N+N power conversion module redundancy. One method is to ensure the power density and conversion efficiency of the power supply module by using N+N fixed ratio power conversion modules in parallel for redundancy. The other method is to ensure the output voltage accuracy and output dynamic response characteristics by using N+N stable voltage output power conversion modules in parallel for redundancy. However, one problem that is often overlooked is the problem of system instability caused by the 2N modules having the same design, the same batch, the same manufacturing process, and the power conversion modules using the same control method. For example, in a fault scenario, there is often a problem that one of them fails, and the other 2N-1 modules also have the hidden danger of the fault. The possibility of a similar fault mode occurring is very high. Usually, a more reliable redundant backup is to use incompletely related structural related redundancy in parallel. The power supply power conversion unit provided by the present invention can solve the above technical problems.

[0088] Figure 1 A structural diagram of a power supply conversion unit provided in an embodiment of the present invention, such as Figure 1 As shown, it includes at least one first power conversion module 4 and at least one second power conversion module 5; the control mode of the first power conversion module 4 is an open-loop control mode, and the control mode of the second power conversion module 5 is a closed-loop control mode;

[0089] The second end of the first switch 2 of the first switch matrix 1 is connected to the first end of the first power conversion module 4; the second end of the second switch 3 of the first switch matrix 1 is connected to the first end of the second power conversion module 5; the first power conversion module 4 and the second power conversion module 5 are connected in parallel; the second ends of the first power conversion module 4 and the second power conversion module 5 are respectively connected to the control unit 6; the control unit 6 is connected to the first end of the first switch 2 and the first end of the second switch 3; wherein, the number of the first switch 2 and the first power conversion module 4, and the number of the second switch 3 and the second power conversion module 5 are the same.

[0090] Specifically, the control mode of the first power conversion module is an open-loop control mode, which does not rely on the feedback information of the system to adjust the control signal, and directly generates control instructions according to the required output power or voltage setting value, without measuring the actual output. Switching operation is performed according to the control signal to adjust the power flowing to the load. Due to the lack of feedback, it may not be possible to automatically compensate for system parameter changes or external interference, resulting in low control accuracy and stability. The first power conversion module of the switch control mode can be a fixed ratio power conversion module, or other power conversion modules, which is not limited here, as long as the control system in the first power conversion module is an open-loop control mode.

[0091] The control mode of the second power conversion module is a closed-loop control mode, which relies on the feedback information of the system to adjust the control signal. The closed-loop control system monitors the actual output of the system in real time and compares it with the expected output (reference signal), and then adjusts the control input according to this deviation, thereby achieving precise control of the system output. In the context of power control, this means that the system can dynamically adjust the power output as needed to meet specific performance requirements or respond to changes in external conditions. If the internal design is improper, there will be problems such as oscillation or reduced stability of overcharging. The second power conversion module can be an adjustable power conversion module or other power conversion module, which is not limited here, as long as the control system in the second power conversion module is a closed-loop control mode. Fixed ratio power conversion module is used to provide stable power conversion function in specific applications, and its ratio number remains unchanged. The optimal efficiency point is at half load, the density and efficiency are better than the adjustable power conversion module, and the heat generation is the least. The adjustable power conversion module is used to adjust the output power or voltage.

[0092] The number of the first power conversion module and the second power conversion module corresponding to the power conversion module in this embodiment is at least one, and can be one or more. In addition, the number of modules of the first power conversion module and the number of modules of the second power conversion module can be the same or different, which is not limited here and can be set according to actual conditions.

[0093] The first switches and the second switches in the first switch matrix are respectively connected to the first power conversion module and the second power conversion module, the number of the first switches is the same as the number of the first power conversion modules, and the number of the second switches is the same as the number of the second power conversion modules. There is no limitation on the types of the first switches and the second switches, which can be the same or different, and can be single-pole single-throw switches, single-pole multi-throw switches, or switch tubes, etc., which can be set according to actual conditions.

[0094] The second end of the first switch of the first switch matrix is ​​connected to the first end of the first power conversion module; the second end of the second switch of the first switch matrix is ​​connected to the first end of the second power conversion module; and the first power conversion module and the second power conversion module are connected in parallel. The second ends of the first power conversion module and the second power conversion module are respectively connected to the control unit, and the control unit is also connected to the first end of the first switch and the first end of the second switch. The control unit in this embodiment can be a controller in the server motherboard or a controller independent of the server motherboard, which is not limited here. The control unit controls the opening and closing of the first switch and the second switch of the first matrix to facilitate the control of the operation of the first power conversion module and the second power conversion module.

[0095] A power conversion module is an electronic device that converts electrical energy from one form to another to meet the needs of different applications, and usually plays a key role in power management, power conversion, and power distribution. It can achieve operations such as rectification, inversion, voltage regulation, and frequency conversion.

[0096] Usually, the first power conversion module provides the main power output, and the second power conversion module provides the necessary redundant backup function to ensure that when the first power conversion module has no output, there is an additional redundant backup module to ensure the high reliability of the power supply system. Alternatively, the second power conversion module performs the main power output, and the first power conversion module provides redundant backup, which is not limited here and can be set according to actual conditions.

[0097] An embodiment of the present invention provides a power supply power conversion unit, comprising at least one first power conversion module and at least one second power conversion module; the control mode of the first power conversion module is an open-loop control mode, and the control mode of the second power conversion module is a closed-loop control mode; the second end of the first switch of the first switch matrix is ​​correspondingly connected to the first end of the first power conversion module; the second end of the second switch of the first switch matrix is ​​correspondingly connected to the first end of the second power conversion module; the first power conversion module and the second power conversion module are connected in parallel; the second ends of the first power conversion module and the second power conversion module are respectively connected to a control unit; the control unit is connected to the first end of the first switch and the first end of the second switch; wherein the number of first switches and first power conversion modules, and the number of second switches and second power conversion modules are the same. The control modes of the first power conversion module and the second power conversion module are different. The power conversion modules using different control modes are implemented differently in design, batch and manufacturing process, thereby avoiding the instability of the system under a single control mode with the same design, batch and manufacturing process due to conventional redundant configuration. The present invention combines the open-loop control mode and the closed-loop control mode by connecting the first switch and the second switch of the first switch matrix to the corresponding first power conversion module and the second power conversion module, thereby improving the stability and reliability of the system.

[0098] In some embodiments, a second switch matrix is ​​further included; wherein the second switch matrix includes a third switch and a fourth switch;

[0099] The first end of the third switch of the second switch matrix is ​​connected to the second end of the first power conversion module; the first end of the fourth switch of the second switch matrix is ​​connected to the second end of the second power conversion module; the number of the fourth switches is the same as the number of the second power conversion modules;

[0100] The second end of the third switch and the second end of the fourth switch of the second switch matrix are both connected to the control unit.

[0101] Specifically, Figure 2 A structural diagram of another power supply conversion unit provided in an embodiment of the present invention, such as Figure 2 As shown, in order to ensure the isolation between the power conversion modules and improve the function of the power supply power conversion unit, a second switch matrix 9 is also included, and the second switch matrix 9 includes a third switch 7 and a fourth switch 8. The first end of the third switch 7 of the second switch matrix 9 corresponds to the second end of the first power conversion module 4; the first end of the fourth switch 8 of the second switch matrix 9 corresponds to the second end of the second power conversion module 5. The second end of the third switch 7 and the second end of the fourth switch 8 of the second switch matrix 9 are both connected to the control unit. When there are multiple first power conversion modules 4, the number of third switches 7 can be one or the same as the number of first power conversion modules 4. The number of corresponding third switches 7 is not limited and can be set according to actual conditions.

[0102] In some embodiments, the number of the first power conversion modules is multiple; the number of the third switches is the same as the number of the first power conversion modules;

[0103] The first end of each third switch is correspondingly connected to the second end of each first power conversion module;

[0104] The second end of each third switch is connected to the control unit.

[0105] Taking into account that each first power conversion module is correspondingly connected to the first switch of the original first switch matrix, in order to accurately measure the corresponding first power conversion module under abnormal circumstances, the first switch and the third switch are both disconnected to achieve isolation between the first power conversion module under abnormal circumstances and the first power conversion modules under other non-abnormal circumstances.

[0106] In some embodiments, Figure 2 As shown, the number of the first power conversion modules 4 is multiple; the number of the third switch 7 is one;

[0107] The first ends of the third switches 7 are connected to the second ends of the first power conversion modules 4;

[0108] A second end of the third switch 7 is connected to the control unit 6 .

[0109] Specifically, the number of third switches is one, and the second ends of all first power conversion modules are connected to the first end of the third switch. If there is an abnormality in the first power conversion module, it can be turned off by the corresponding first switch. At this time, the third switch is still in the closed state to ensure that other first power conversion modules that are not in an abnormal state operate normally.

[0110] It should be noted that, combined with Figure 2In this embodiment, the number of the first power conversion modules is N', the number of the second power conversion modules is M', and N' and M' are positive integers.

[0111] The number of the fourth switches is the same as the number of the second power conversion modules. When an abnormality occurs in the first power conversion module, the second power conversion module is required to take over to provide power. At this time, in addition to closing the corresponding second switch, the corresponding fourth switch will also be closed to achieve double insurance work of the second power conversion module that takes over.

[0112] The connection relationship between the first power conversion module and the second power conversion module under the two control modes provided in this embodiment corresponds to the third switch and the fourth switch of the second switch matrix, which ensures the isolation between the first power conversion module and the second power conversion module, and further ensures the completeness and control accuracy of the power supply control function of the power supply power conversion unit.

[0113] In some embodiments, when the control unit detects that a fault occurs in the first power conversion module under power supply state, it controls the first switch corresponding to the faulty first power conversion module to be disconnected, and controls the second switch corresponding to the second power conversion module to be closed to take over the power supply of the faulty first power conversion module.

[0114] Specifically, in this embodiment, when a fault occurs in the first power conversion module, the first switch corresponding to the faulty first power conversion module is controlled to be disconnected. The fault state here is considered to be a situation where the first power conversion module cannot output current or power normally when the first power conversion module is supplying power to the server host, or the output exceeds the output value corresponding to the preset current and preset power. The preset current and preset power here are not limited in this embodiment, and can be values ​​set by the user, or preset values ​​corresponding to the load rate, etc. As long as the preset parameter value is exceeded, it is determined to be a fault state. The second switch of the second power conversion module is turned off to provide normal power supply.

[0115] The control methods of the first power conversion module and the second power conversion module provided in this embodiment are different. The first power conversion module is preliminarily turned off by turning off the first switch to be in a power supply state. When the control unit detects that the first power conversion module has a fault, the first switch corresponding to the first power conversion module with the fault is turned off, and the second switch corresponding to the target second power conversion module is controlled to be turned off to replace the second power conversion module with the fault, so that the first power conversion module without the fault and the target second power conversion module that replaces the first power conversion module with the fault are in a power supply state.

[0116] In the present embodiment, when a first power conversion module in an open-loop control mode fails, a second power conversion module in a closed-loop control mode takes over the work, thereby avoiding the conventional redundant configuration where, due to the same design, batch and manufacturing process, if one configuration module fails, other configuration modules may have potential failure risks, thereby improving the reliability of the server power supply system.

[0117] In other embodiments, the control unit is used to set the load point of the first power conversion module in the power-on state to a set load point; when it is detected that the first power conversion module in the power-on state has a fault, the load points of the target second power conversion module corresponding to the first power conversion module that replaces the faulty first power conversion module and the remaining first power conversion modules that have not failed are set to the set load point.

[0118] Specifically, in conventional redundant configurations, the load rate of the power supply system does not exceed 50%, and the server is often in a light-load working range, so that the load point of the server cannot reach the optimal efficiency point, and the working efficiency of the power supply system is reduced. In this embodiment, the load point of the first power conversion module in the power supply state is set to the set load point, and the first power conversion module using an open-loop control method is used as the main power conversion module for power supply relative to the second power conversion module using a closed-loop control method, to ensure that heat loss is reduced and the working efficiency of the power supply system is improved. If there is a fault in the first power conversion module, the target second power conversion module corresponding to the first power conversion module that replaces the faulty first power conversion module also needs to be set at the set load point. Ensure that the first power conversion module and the second power conversion module currently in the power supply state reach the set load point to improve the working efficiency of the power supply system.

[0119] In some embodiments, Figure 2 As shown, it also includes a fuse 12; the fuse 12 includes a first fuse 10 and a second fuse 11; the number of the first fuses 10 is the same as the number of the first power conversion modules 4; the number of the second fuses 11 is the same as the number of the second power conversion modules 5;

[0120] The second end of the first switch 2 of the first switch matrix 1 is correspondingly connected to the first end of the first fuse 10; the second end of the first fuse 10 is correspondingly connected to the first end of the first power conversion module 4;

[0121] The second end of the second switch 3 of the first switch matrix 1 is correspondingly connected to the first end of the second fuse 11 ; the second end of the second fuse 11 is correspondingly connected to the first end of the second power conversion module 5 .

[0122] It is understandable that the fuse and the switch are used together, that is, the first fuse and the first switch are used together, the second fuse and the second switch are used together, the number of the first fuses is the same as the number of the first power conversion modules, and the number of the second fuses is the same as the number of the second power conversion modules, so as to provide overload and circuit breaker protection and convenient control means. A fuse is an overload protection device. When the current in the circuit exceeds its rated value, the metal wire or fuse in the fuse will melt due to overheating, thereby cutting off the circuit and preventing damage caused by overload. In addition, there is no limitation on the number of fuses, which can be the same as the number of each power conversion module or different.

[0123] In some embodiments, a first voltage and current detection module is further included; the first voltage and current detection module includes a plurality of first sub-voltage and current detection modules and a plurality of second sub-voltage and current detection modules; and the number of the first sub-voltage and current detection modules is the same as the number of the first power conversion modules, and the number of the second sub-voltage and current detection modules is the same as the number of the second power conversion modules;

[0124] The first end of each first sub-voltage and current detection module is respectively connected to the second end of each first power conversion module; the second end of each first sub-voltage and current detection module is respectively connected to the first end of the third switch;

[0125] The first end of each second sub-voltage and current detection module is respectively connected to the second end of each second power conversion module; the second end of each second sub-voltage and current detection module is respectively connected to the first end of the fourth switch.

[0126] Specifically, the voltage and current detection module is an electronic device that integrates voltage and current detection functions. It is widely used in monitoring and managing power supply parameters in systems and can monitor power, current, voltage and other parameters in real time.

[0127] The first voltage and current detection module here includes a plurality of first sub-voltage and current detection modules and a plurality of second sub-voltage and current detection modules, which correspond to the same number as the number of each power conversion module and are connected in a one-to-one correspondence.

[0128] In other embodiments, Figure 2 As shown, it also includes a second voltage and current detection module 15; the second voltage and current detection module 15 includes a third sub-voltage and current detection module 13 and a plurality of fourth sub-voltage and current detection modules 14; and the number of the fourth sub-voltage and current detection modules 14 is the same as the number of the second power conversion modules 5;

[0129] The first end of the third sub-voltage and current detection module 13 is connected to the second end of the first power conversion module 4; the second end of the third sub-voltage and current detection module 13 is connected to the first end of the third switch 7;

[0130] The first end of each fourth sub-voltage and current detection module 14 is respectively connected to the second end of each second power conversion module 5 ; the second end of each fourth sub-voltage and current detection module 14 is respectively connected to the first end of the fourth switch 8 .

[0131] The connection relationship of a third sub-voltage and current detection module of the second voltage and current detection module in this embodiment is the same as that of the first end of a third switch of the second switch matrix in the above embodiment connected to the second end of each first power conversion module; the first end of the fourth switch of the second switch matrix corresponds to the second end of each second power conversion module connected to the same number of switches of the second switch matrix, that is, the first end of the third sub-voltage and current detection module of the second voltage and current detection module is connected to the first power conversion module; the second end is connected to the first end of the third switch of the second switch matrix; the first end of the fourth sub-voltage and current detection module of the second voltage and current detection module is connected to each second power conversion module; the second end is connected to the first end of the fourth switch of the second switch matrix. The number of fourth sub-voltage and current detection modules in this embodiment is A', and A' is a positive integer.

[0132] The connection relationship between the first voltage and current detection module and the second voltage and current detection module provided in this embodiment improves the connection diversity and flexibility of the power supply conversion unit.

[0133] Furthermore, the present invention provides a power supply system. Figure 3 A schematic diagram of a power supply system according to an embodiment of the present invention is shown in FIG. Figure 3 As shown, it includes a bus power supply 16 and the above-mentioned power supply conversion unit;

[0134] The bus power supply 16, the power supply conversion unit and the control unit 6 are connected;

[0135] The bus power supply 16 is used to output a bus voltage, and the output bus voltage is reduced to a bus voltage corresponding to the control unit 6 through the power supply conversion unit.

[0136] It is understandable that the bus power output bus voltage is reduced to the bus voltage corresponding to the control unit through the power supply conversion unit, so as to provide power supply voltage for the server mainboard.

[0137] In some embodiments, Figure 3 As shown, a rectifier 17 is also included;

[0138] A first end of the rectifier 17 is connected to the bus power supply 16; a second end of the rectifier 17 is connected to the first switch matrix 1 of the power supply conversion unit;

[0139] The rectifier 17 is used to convert the AC type of the bus voltage into a DC bus so as to be input into the power supply conversion unit.

[0140] Specifically, the rectifier is used to convert AC power into DC power for use in DC circuits. The rectifier in this embodiment converts the AC bus of the bus power supply into a high voltage direct current (HVDC) bus voltage, such as a stable 380VDC high voltage DC bus. The power supply conversion unit converts the high voltage DC bus voltage (380VDC) into a low voltage bus, and a 12V or 48V low voltage bus, for use by the low voltage power supply bus of the server motherboard connected to the control unit, providing the necessary power supply to the server.

[0141] For an introduction to a power supply conversion unit provided by the present invention, please refer to the above method embodiment, and the present invention will not be repeated here. It has the same beneficial effects as the above power supply system.

[0142] Furthermore, the present invention also provides a method for supplying power to a server. Figure 4 A flow chart of a method for powering a server provided by an embodiment of the present invention, such as Figure 4 As shown, the power supply power conversion unit is applied to the above-mentioned power supply power conversion unit, the power supply power conversion unit includes at least one first power conversion module and at least one second power conversion module; the control mode of the first power conversion module is an open-loop control mode, and the control mode of the second power conversion module is a closed-loop control mode; the second end of the first switch of the first switch matrix is ​​correspondingly connected to the first end of the first power conversion module; the second end of the second switch of the first switch matrix is ​​correspondingly connected to the first end of the second power conversion module; the first power conversion module and the second power conversion module are connected in parallel; the second ends of the first power conversion module and the second power conversion module are respectively connected to the control unit; the control unit is connected to the first end of the first switch and the first end of the second switch; wherein the number of the first switch and the first power conversion module, and the number of the second switch and the second power conversion module are the same, and the method includes:

[0143] S11: monitoring the power supply status of the first power conversion module;

[0144] S12: when it is detected that the parameter output by the first power conversion module in the power supply state is abnormal, controlling the first switch corresponding to the abnormal first power conversion module to be disconnected;

[0145] S13: Controlling the second switch corresponding to the second power conversion module to be closed to take over the power supply of the abnormal first power conversion module.

[0146] Specifically, the power supply status of the first power conversion module is monitored, and when it is detected that the parameters output by the first power conversion module in the power supply status are abnormal, the first switch connected to the first power conversion module with the abnormality is controlled to be disconnected. The power supply status is based on that all the first power conversion modules in the power supply system are in normal working state, receiving stable power supply, and working normally. The abnormal situation here can be power outage, low voltage, overvoltage, unstable power supply, insufficient power supply or power overload, including a faulty first power conversion module, instantaneous fluctuations and other phenomena.

[0147] Monitor whether the parameters output by the first power conversion module are abnormal. Based on the threshold values ​​of the corresponding parameters under abnormal conditions, the parameters can be compared with the actual output parameters to determine whether there is an abnormality. In the event of an abnormality, the first switch corresponding to the first power conversion module with the abnormality is controlled to be disconnected. It can be understood that the first power conversion module with the abnormality in this embodiment needs to be located in order to control the corresponding first switch. Control the second switch of the second power conversion module to be closed. It can be understood here that all the second power conversion modules can be used to take over, or in order to improve work efficiency and make the second power conversion module to be replaced reach the optimal load point, the partial current exceeding the preset current is used to determine the number of succession of the second power conversion module. By controlling the second switches of the second power conversion modules corresponding to the number of succession to be closed, the second power conversion modules corresponding to the number of succession can be powered on.

[0148] In some embodiments, when the abnormal first power conversion module is in a fault state, and the load point of the first power conversion module in the power supply state is a set load point, the process of determining the fault state of the first power conversion module includes: obtaining the current current value output by each first power conversion module;

[0149] When the current current value is greater than the load current corresponding to the set load point of the corresponding first power conversion module in the power supply state, it is determined that the state of the first power conversion module to which the current current value belongs is a fault state.

[0150] Specifically, the current current value output by each first power conversion module is obtained. Here, the current current value output by a first power conversion module is obtained. If the current current value does not exceed the load current, it is determined that the first power conversion module is in a normal power supply state and no fault occurs; if it exceeds the load current corresponding to the set load point of the first power conversion module in the power supply state, it indicates that the first power conversion module is in a fault state. The load current corresponding to the set load point here is the total output current I 总 / the number of all first power conversion modules*preset load point, or it can be based on the designed total power / the number of all first power conversion modules*preset load point, which can be set according to actual conditions.

[0151] It is understandable that the setting load point is set according to the user's needs. The corresponding range can be 50% of the load point or 40%-60% of the load point. There is no limitation here, but the setting load point is used to characterize the optimal load rate of each power conversion module.

[0152] In some embodiments, the process of determining the load current corresponding to the set load point of each first power conversion module in the power supply state includes:

[0153] Obtaining a current total voltage value output by all first power conversion modules; wherein the current total voltage value is determined by a fixed transformation ratio of the first power conversion module and a bus voltage input to a power supply conversion unit;

[0154] Determine a preset power value according to the relationship between the total power value of the power supply power conversion unit and the set load point;

[0155] Determine the load current corresponding to the set load point of all first power conversion modules in the power supply state according to the relationship between the preset power value and the current total voltage value;

[0156] The load current corresponding to the set load point of each first power conversion module in the power supply state is determined according to the load current corresponding to the set load point of all first power conversion modules in the power supply state and the number of all first power conversion modules.

[0157] Specifically, the current total voltage value output by all the first power conversion modules is obtained by the fixed transformation ratio of the first power conversion modules and the bus voltage input to the power supply conversion unit, that is, Vout=Vin / m, wherein Vout is the current total voltage value output by all the first power conversion modules, Vin is the bus voltage of the power supply conversion unit, and m is the fixed transformation ratio of the first power conversion module.

[0158] The relationship between the total power value of the power supply conversion unit and the set load point determines the preset power value, that is, P 总 *Set load point = P 预设功率值 Then, according to the relationship between the preset power value and the current total voltage value, the load current corresponding to the set load point of all first power conversion modules in the power supply state is determined, that is, P 预设功率值 / Vout=I 负载电流 The load current corresponding to the set load point of each first power conversion module in the power supply state is determined according to the load current corresponding to the set load point of all first power conversion modules in the power supply state and the number of all first power conversion modules, that is, I各第一功率转换模组的负载电流 =I 负载电流 / The number of all first power conversion modules.

[0159] The load current determination process in this embodiment facilitates subsequent comparison of the current current value with the load current to determine the fault monitoring mode of the first power conversion module, thereby improving the accuracy of fault monitoring.

[0160] In some embodiments, monitoring can also be performed in a power manner. When the abnormal first power conversion module is in a fault state, and the load point of the first power conversion module in the power supply state is a set load point, the process of determining the fault state of the first power conversion module includes:

[0161] Obtaining the current power value output by each first power conversion module;

[0162] Determine a preset power value according to the relationship between the total power value of the power supply power conversion unit and the set load point; and determine the load power of each first power conversion module in the power supply state according to the preset power value and the number of all first power conversion modules;

[0163] When the current power value is greater than the load power, it is determined that the state of the first power conversion module to which the current power value belongs is a fault state.

[0164] It can be understood that the process of determining the preset power value in this embodiment is the same as the process of determining the preset power value in the above embodiment, and will not be repeated here. The load power of each first power conversion module in the power supply state is determined according to the preset power value and the number of all first power conversion modules. If the current power is greater than the load power, the first power conversion module is determined to be in a fault state.

[0165] In this embodiment, the fault monitoring mode of the first power conversion module is determined by power comparison, thereby improving the accuracy of fault monitoring. At the same time, in combination with the above embodiments, the comparison process of current parameters and power parameters is used to improve the diversity and flexibility of fault monitoring.

[0166] In step S13, the taking over process of the second power conversion module is controlled. Taking the work efficiency into consideration, the corresponding working state of the second power conversion module also reaches the set load point. It is necessary to check whether the part exceeding the current value or the power value is borne by the second power conversion module to increase the total current and total power and ensure the stable output of the low-voltage bus voltage.

[0167] It is understandable that, when power is turned on, the first power conversion module is in a normal working state, and the second power conversion module is in a standby state, that is, in a no-load state.

[0168] The present embodiment provides a power supply method for a server, which monitors the power supply status of a first power conversion module; when it is detected that the parameters output by the first power conversion module in the power supply status are abnormal, the first switch corresponding to the abnormal first power conversion module is controlled to be disconnected; the second switch corresponding to the second power conversion module is controlled to be closed to replace the abnormal first power conversion module for power supply. The control modes of the first power conversion module and the second conversion module are different. The power conversion modules using different control modes are implemented differently in design, batch and manufacturing process, so as to avoid the instability of the system under the single control mode with the same design, batch and manufacturing process due to the conventional redundant configuration. The present invention combines the open-loop control mode and the closed-loop control mode through the connection mode of the first power conversion module and the second power conversion module respectively connected by the first switch and the second switch of the first switch matrix, so as to improve the stability and reliability of the system.

[0169] In some embodiments, controlling the second switch corresponding to the second power conversion module to be closed to take over the power supply of the abnormal first power conversion module includes:

[0170] Obtaining a current total current value and a preset total current value output by all first power conversion modules;

[0171] Determining a corresponding load current according to a preset total current value and a set load point of each first power conversion module in a power supply state;

[0172] Determine the current value to be borne by the second power conversion module to replace the first power conversion module with a fault according to the relationship between the current total current value and the load current;

[0173] The number of second power conversion modules to be replaced is determined according to the relationship between the current value to be borne and the current value corresponding to each second power conversion module, so as to control the second switches of the second power conversion modules corresponding to the number of replacement modules to be closed, and replace the abnormal first power conversion module to supply power.

[0174] Specifically, this embodiment adopts the partial judgment of the excess current, and determines the current value to be borne by the second power conversion module replacing the first power conversion module with an abnormality through the relationship between the current total current value and the load current, and obtains the current value to be borne by the second power conversion module replacing the first power conversion module with an abnormality by subtracting the two parameters, that is, I 待承担电流值 .

[0175] The number of replacements of the second power conversion modules is determined by the relationship between the current value to be borne and the current value corresponding to each second power conversion module, that is, I 待承担电流值 / I 第二功率转换模组对应的电流值= the number of succession, so as to control the second switch of the second power conversion module corresponding to the number of succession to be closed, and to take over the power supply of the abnormal first power conversion module.

[0176] In some other embodiments, controlling the second switch corresponding to the second power conversion module to be turned off to take over the power supply of the abnormal first power conversion module includes:

[0177] Acquire the number of all first power conversion modules and the number of abnormal first power conversion modules;

[0178] Determine a first power value according to a relationship between a current total power output by all first power conversion modules and a set load point;

[0179] Determine the power value borne by the first power conversion module with abnormality according to the first power value, the number of all first power conversion modules and the number of first power conversion modules with abnormality;

[0180] The number of second power conversion modules to be replaced is determined based on the relationship between the power value borne by each second power conversion module and the power value borne by the first power conversion module with an abnormality, so as to control the second switches of the second power conversion modules corresponding to the number of second power conversion modules to be closed, and take over the power supply of the first power conversion module with an abnormality.

[0181] Specifically, the first power value is determined based on the relationship between the current total power value and the set load point, and n is set to be the number of first power conversion modules, and n1 is the number of first power conversion modules with abnormalities, where n1≤n. The formula for determining the power value borne by the first power conversion module with abnormalities is as follows:

[0182] P 当前总功率值 *Set load point*n1 / n;

[0183] The number of second power conversion modules to be replaced is determined according to the relationship between the power value borne by each second power conversion module and the power value borne by the abnormal first power conversion module, so as to take over the work of the abnormal first power conversion module.

[0184] The present embodiment provides a method for determining the number of successive second power conversion modules by either current or power mode, so as to ensure that the successive second power conversion module is at a set load point when operating, thereby improving work efficiency and also increasing the diversity and flexibility of the process for determining the number of successive modules.

[0185] In some embodiments, when the abnormal first power conversion module is in a transient fluctuation state, controlling the second switch corresponding to the second power conversion module to be closed to take over the power supply of the abnormal first power conversion module includes:

[0186] Acquire a first output voltage, a first input voltage, and a preset voltage range of a power supply conversion unit;

[0187] If the first input voltage exceeds the preset value, and the first output voltage exceeds the preset voltage range or does not reach the preset voltage range, then all the first power conversion modules are determined to be in an instantaneous fluctuation state;

[0188] Determine the first voltage value or the second voltage value according to the relationship between the first output voltage and the maximum value or the minimum value of the preset voltage range;

[0189] Determining the number of second power conversion modules borne by each second power conversion module according to the relationship between the power value borne by each second power conversion module and the first voltage value or the second voltage value;

[0190] According to the number of the second power conversion modules, the second switches of the second power conversion modules corresponding to the number of the second power conversion modules are controlled to close and supply power until the first input voltage does not exceed the preset value and switches to the corresponding working mode of the second power conversion module when the power supply state is reached.

[0191] Specifically, the output bus voltage is within a range, which corresponds to the first output voltage, running a maximum value and a minimum value, that is, a preset voltage range (Voutmin, Voutmax), usually a 10% fluctuation range, that is, 1.1Vout=Voutmax, 0.9Vout=Voutmin, and the change in the value corresponding to 10% can be set according to actual conditions.

[0192] If the first input voltage exceeds the preset value, and the first output voltage exceeds the preset voltage range or does not reach the preset voltage range, it is determined that all first power conversion modules are in an instantaneous fluctuation state. The first voltage value (V1) and the second voltage value (V2) of the first output voltage are determined according to the preset voltage range, and the number of second power conversion modules undertaken is determined according to the relationship between the power value undertaken by each second power conversion module, the first voltage value or the second voltage value, that is, based on the voltage mode, the first output voltage is controlled, and the second power conversion module undertakes all short-term power. At the same time, in order to ensure that the second power conversion module reaches the set load point when assuming, the second switch of the second power conversion module corresponding to the number of assuming is determined to be closed, and power is supplied until the first input voltage does not exceed the preset value, and then switched to the working mode of the corresponding second power conversion module in the power supply state.

[0193] The first input voltage in this embodiment is based on the input voltage input to the power supply conversion unit, and the preset value is based on the threshold value corresponding to the first input voltage. When the first input voltage fluctuates beyond the preset value, or the side power of the output load increases sharply, the output low-voltage bus voltage will become low, which may easily exceed the voltage value range of the server power supply bus operation.

[0194] When the first input voltage is normal, or the output load is stable, the main power is borne by the first power conversion module.

[0195] When the input bus voltage and output bus voltage of the power supply system provided by this embodiment fluctuate instantaneously, the system redundancy reliability and dynamic response characteristics under high power are ensured to meet the system requirements while achieving the optimal system efficiency. At the same time, when overloaded, the second power conversion module is operated at the optimal load point in real time to ensure the optimal overall system efficiency, minimum loss and minimum heat generation. Figure 5 A flow chart of another configuration method of a power supply conversion unit provided in an embodiment of the present invention, such as Figure 5 As shown, including:

[0196] S21: converting the high-voltage DC bus voltage into a low-voltage power supply bus for use by the low-voltage power supply bus of the server motherboard, thereby providing the necessary power supply to the server;

[0197] S22: adopting a redundant mode, which is composed of a first power conversion module and a second power conversion module connected in parallel;

[0198] S23: Power value of a single first power conversion module and a single second power conversion module = total power value / number of power modules.

[0199] Figure 6 A flow chart of another method for powering a server provided in an embodiment of the present invention, such as Figure 6 As shown, including:

[0200] S24: When starting to work, the first power conversion module works normally, and the second power conversion module is in standby state;

[0201] S25: When the first power conversion module is working, the output of the corresponding low-voltage bus is determined by the input bus voltage and the fixed transformation ratio;

[0202] S26: when working, the first power conversion module is in a current control mode, the total output load is at half load, and the output power is completely borne by the first power conversion module;

[0203] S27: When it is monitored that the total output current does not exceed the load current, the entire output current is borne by the first power conversion module;

[0204] S28: outputting the first power conversion modules to autonomously share the current, and the total current value and the number of the first power conversion modules determine the current borne by each first power conversion module;

[0205] S29: when it is monitored that the total output current exceeds the load current, the output first power conversion module operates at the load point in real time;

[0206] S30: The second power conversion module responds to the part of the current that exceeds the load current, tracks the output current, and ensures the bus voltage output is stable;

[0207] S31: The second power conversion module responds to the output current state in real time, and the current to be borne is replaced by the number of second power conversion modules at the load point.

[0208] Figure 7 A structural diagram of an electronic device provided by an embodiment of the present invention, such as Figure 7 As shown, including:

[0209] A memory 21, used for storing computer programs;

[0210] The processor 22 is used to implement the steps of the power supply method for the server when executing the computer program.

[0211] Among them, the processor 22 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 22 may be implemented in at least one hardware form of a digital signal processor (DSP), a field-programmable gate array (FPGA), and a programmable logic array (PLA). The processor 22 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 22 may be integrated with a graphics processing unit (GPU), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 22 may also include an artificial intelligence (AI) processor, which is used to process computing operations related to machine learning.

[0212] The memory 21 may include one or more non-volatile storage media, which may be non-transitory. The memory 21 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In this embodiment, the memory 21 is at least used to store the following computer program 211, wherein, after the computer program is loaded and executed by the processor 22, it can implement the relevant steps of the power supply method of the server disclosed in any of the aforementioned embodiments. In addition, the resources stored in the memory 21 may also include an operating system 212 and data 213, etc., and the storage method may be temporary storage or permanent storage. Among them, the operating system 212 may include Windows, Unix, Linux, etc. The data 213 may include, but is not limited to, data related to the power supply method of the server, etc.

[0213] In some embodiments, the electronic device may further include a display screen 23 , an input / output interface 24 , a communication interface 25 , a power source 26 , and a communication bus 27 .

[0214] Those skilled in the art can understand that Figure 7 The structure shown in the figure does not constitute a limitation on the electronic device, and may include more or fewer components than shown in the figure.

[0215] The processor 22 implements the server power supply method provided by any of the above embodiments by calling the instructions stored in the memory 21.

[0216] For an introduction to an electronic device provided by the present invention, please refer to the above method embodiment, and the present invention will not be repeated here. It has the same beneficial effects as the power supply method of the above server.

[0217] Figure 8 A schematic diagram of a module master control unit in a server motherboard provided by an embodiment of the present invention, such as Figure 8 As shown, different pins of the module master control unit in the server motherboard are used for voltage and current detection of the first power conversion module, total input and output voltage and current detection, and current regulation and voltage regulation corresponding to the first power conversion module.

[0218] Fig. 9 A schematic diagram of an adjustable power conversion module control unit in a server motherboard provided by an embodiment of the present invention, such as Fig. 9As shown, the functions of different pins correspond to switch control in the first switch matrix and the second switch matrix (including the second switch of the first switch matrix for controlling the adjustable power conversion module, the first switch of the first switch matrix for controlling the fixed ratio power conversion module, the fourth switch of the second switch matrix for controlling the adjustable power conversion module, and the third switch of the second switch matrix for controlling the fixed ratio power conversion module), input total voltage and current detection and output voltage and current detection (wherein, output voltage and current detection is based on sub-module output voltage detection and sub-module output current detection, where the sub-modules are each adjustable power conversion module), and voltage and current control of each adjustable power conversion module.

[0219] Furthermore, the present invention also provides a non-volatile storage medium, on which a computer program is stored, and when the computer program is executed by the processor 22, the steps of the power supply method for the server as described above are implemented.

[0220] It is understandable that if the method in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a non-volatile storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and executes all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0221] For an introduction to a non-volatile storage medium provided by the present invention, please refer to the above method embodiment, which will not be described in detail herein. The present invention has the same beneficial effects as the above server power supply method.

[0222] Furthermore, the present invention also provides a computer program product, including a computer program / instruction, which implements the steps of the power supply method for the server when the computer program / instruction is executed by a processor.

[0223] For an introduction to a computer program product provided by the present invention, please refer to the above method embodiment, which will not be described in detail herein. It has the same beneficial effects as the above server power supply method.

[0224] The above is a detailed introduction to a power supply power conversion unit, a power supply system, a power supply method and a device for a server provided by the present invention. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can refer to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the present invention.

[0225] It should also be noted that, in this specification, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A power supply conversion unit, characterized in that: The invention comprises at least one first power conversion module and at least one second power conversion module; the control mode of the first power conversion module is an open-loop control mode, and the control mode of the second power conversion module is a closed-loop control mode; the first power conversion module is a fixed ratio power conversion module; the second power conversion module is an adjustable power conversion module; The second end of the first switch of the first switch matrix is ​​connected to the first end of the first power conversion module; the second end of the second switch of the first switch matrix is ​​connected to the first end of the second power conversion module; the first power conversion module and the second power conversion module are connected in parallel; the second ends of the first power conversion module and the second power conversion module are connected to a control unit; the control unit is connected to the first end of the first switch and the first end of the second switch; wherein the number of the first switch and the first power conversion module, and the number of the second switch and the second power conversion module are the same; The control unit is used to monitor the power supply status of the first power conversion module; when it is detected that the parameters output by the first power conversion module in the power supply status are abnormal, the first switch corresponding to the abnormal first power conversion module is controlled to be disconnected; the second switch corresponding to the second power conversion module is controlled to be closed to replace the abnormal first power conversion module for power supply; the abnormal parameter conditions are power failure, low voltage, overvoltage, unstable power supply, insufficient power supply or power overload, at least including a faulty first power conversion module and the occurrence of instantaneous fluctuations; Wherein, the control unit is used to control the first switch corresponding to the faulty first power conversion module to be disconnected when detecting that the first power conversion module is faulty in the power supply state, and control the second switch corresponding to the second power conversion module to be closed to replace the faulty first power conversion module for power supply; the fault state of the first power conversion module is that when supplying power to the server host, the current or power cannot be output normally, or the output exceeds the output value corresponding to the preset current or preset power; Alternatively, the control unit is used to set the load point of the first power conversion module in the power-on state to a set load point; when it is detected that the first power conversion module in the power-on state has a fault, the load points of the target second power conversion module corresponding to the first power conversion module that replaces the faulty first power conversion module and the remaining first power conversion modules that have not had a fault are set to the set load point.

2. The power supply conversion unit according to claim 1, characterized in that: Also includes a second switch matrix; wherein the second switch matrix includes a third switch and a fourth switch; The first end of the third switch of the second switch matrix is ​​correspondingly connected to the second end of the first power conversion module; the first end of the fourth switch of the second switch matrix is ​​correspondingly connected to the second end of the second power conversion module; the number of the fourth switches is the same as the number of the second power conversion modules; The second end of the third switch of the second switch matrix and the second end of the fourth switch are both connected to the control unit.

3. The power supply conversion unit according to claim 2, characterized in that: The number of the first power conversion modules is multiple; the number of the third switches is the same as the number of the first power conversion modules; The first end of each of the third switches is correspondingly connected to the second end of each of the first power conversion modules; The second end of each of the third switches is connected to the control unit.

4. The power supply conversion unit according to claim 2, characterized in that: The number of the first power conversion modules is multiple; the number of the third switch is one; The first ends of the third switches are connected to the second ends of the first power conversion modules; The second end of the third switch is connected to the control unit.

5. The power supply conversion unit according to claim 1, characterized in that: Also includes a fuse; the fuse includes a first fuse and a second fuse; the number of the first fuses is the same as the number of the first power conversion modules; the number of the second fuses is the same as the number of the second power conversion modules; The second end of the first switch of the first switch matrix is ​​correspondingly connected to the first end of the first fuse; the second end of the first fuse is correspondingly connected to the first end of the first power conversion module; The second end of the second switch of the first switch matrix is ​​correspondingly connected to the first end of the second fuse; the second end of the second fuse is correspondingly connected to the first end of the second power conversion module.

6. The power supply conversion unit according to claim 3, characterized in that: Also includes a first voltage and current detection module; the first voltage and current detection module includes a plurality of first sub-voltage and current detection modules and a plurality of second sub-voltage and current detection modules; and the number of the first sub-voltage and current detection modules is the same as the number of the first power conversion modules, and the number of the second sub-voltage and current detection modules is the same as the number of the second power conversion modules; The first end of each of the first sub-voltage and current detection modules is respectively connected to the second end of each of the first power conversion modules; the second end of each of the first sub-voltage and current detection modules is respectively connected to the first end of the third switch; The first end of each of the second sub-voltage and current detection modules is respectively connected to the second end of each of the second power conversion modules; the second end of each of the second sub-voltage and current detection modules is respectively connected to the first end of the fourth switch.

7. The power supply conversion unit according to claim 4, characterized in that: It also includes a second voltage and current detection module; the second voltage and current detection module includes a third sub-voltage and current detection module and a plurality of fourth sub-voltage and current detection modules; and the number of the fourth sub-voltage and current detection modules is the same as the number of the second power conversion modules; The first end of the third sub-voltage and current detection module is connected to the second end of the first power conversion module; the second end of the third sub-voltage and current detection module is connected to the first end of the third switch; The first end of each of the fourth sub-voltage and current detection modules is respectively connected to the second end of each of the second power conversion modules; the second end of each of the fourth sub-voltage and current detection modules is respectively connected to the first end of the fourth switch.

8. A power supply system, characterized in that: Comprising a bus power supply and a power supply power conversion unit according to any one of claims 1 to 7; The bus power supply, the power supply conversion unit and the control unit are connected; The bus power supply is used to output a bus voltage, and the output bus voltage is reduced to a bus voltage corresponding to the control unit through the power supply conversion unit.

9. The power supply system according to claim 8, characterized in that: Also includes a rectifier; The first end of the rectifier is connected to the bus power supply; the second end of the rectifier is connected to the first switch matrix of the power supply conversion unit; The rectifier is used to convert the AC type of the bus voltage into a DC bus so as to facilitate input into the power supply conversion unit.

10. A method for powering a server, characterized in that: Applied to a power supply power conversion unit, the power supply power conversion unit includes at least one first power conversion module and at least one second power conversion module; the control mode of the first power conversion module is an open-loop control mode, and the control mode of the second power conversion module is a closed-loop control mode; the second end of the first switch of the first switch matrix is ​​correspondingly connected to the first end of the first power conversion module; the second end of the second switch of the first switch matrix is ​​correspondingly connected to the first end of the second power conversion module; the first power conversion module and the second power conversion module are connected in parallel; the second ends of the first power conversion module and the second power conversion module are respectively connected to a control unit; the control unit connects the first end of the first switch and the first end of the second switch; wherein the number of the first switch and the first power conversion module, the number of the second switch and the second power conversion module is the same, the first power conversion module is a fixed ratio power conversion module; the second power conversion module is an adjustable power conversion module; the method includes: Monitoring the power supply status of the first power conversion module; When it is detected that the parameter output by the first power conversion module in the power supply state is abnormal, the first switch corresponding to the first power conversion module with the abnormality is controlled to be disconnected; Controlling the second switch corresponding to the second power conversion module to close to take over the power supply of the abnormal first power conversion module; the abnormal condition of the parameter is power failure, low voltage, overvoltage, unstable power supply, insufficient power supply or power overload, including at least a faulty first power conversion module and instantaneous fluctuation; Wherein, the control unit is used to control the first switch corresponding to the faulty first power conversion module to be disconnected when detecting that the first power conversion module is faulty in the power supply state, and control the second switch corresponding to the second power conversion module to be closed to replace the faulty first power conversion module for power supply; the fault state of the first power conversion module is that when supplying power to the server host, the current or power cannot be output normally, or the output exceeds the output value corresponding to the preset current or preset power; Alternatively, the control unit is used to set the load point of the first power conversion module in the power-on state to a set load point; when it is detected that the first power conversion module in the power-on state has a fault, the load points of the target second power conversion module corresponding to the first power conversion module that replaces the faulty first power conversion module and the remaining first power conversion modules that have not had a fault are set to the set load point.

11. The method for powering a server according to claim 10, characterized in that: When the first power conversion module with the abnormality is in a fault state, and the load point of the first power conversion module in the power supply state is a set load point, the process of determining the fault state of the first power conversion module includes: obtaining the current current value output by each of the first power conversion modules; When the current current value is greater than the load current corresponding to the set load point of the corresponding first power conversion module in the power supply state, it is determined that the state of the first power conversion module to which the current current value belongs is a fault state.

12. The method for powering a server according to claim 11, characterized in that: The process of determining the load current corresponding to the set load point of each of the first power conversion modules in the power supply state includes: Obtaining a current total voltage value output by all first power conversion modules; wherein the current total voltage value is determined by a fixed transformation ratio of the first power conversion module and a bus voltage input to the power supply conversion unit; Determining a preset power value according to a relationship between a total power value of the power supply conversion unit and the set load point; Determine the load current corresponding to the set load point of all first power conversion modules in the power supply state according to the relationship between the preset power value and the current total voltage value; The load current corresponding to the set load point of each first power conversion module in the power supply state is determined according to the load current corresponding to the set load point of all first power conversion modules in the power supply state and the number of all first power conversion modules.

13. The power supply method for a server according to claim 10, characterized in that: When the first power conversion module with the abnormality is in a fault state, and the load point of the first power conversion module in the power supply state is a set load point, the process of determining the fault state of the first power conversion module includes: Obtaining a current power value output by each of the first power conversion modules; Determine a preset power value according to the relationship between the total power value of the power supply power conversion unit and the set load point; and determine the load power of each of the first power conversion modules in the power supply state according to the preset power value and the number of all first power conversion modules; In the case that the current power value is greater than the load power, it is determined that the state of the first power conversion module to which the current power value belongs is a fault state.

14. The method for powering a server according to claim 11, characterized in that: Controlling the second switch corresponding to the second power conversion module to close to take over the power supply of the abnormal first power conversion module, including: Obtaining a current total current value and a preset total current value output by all first power conversion modules; Determining a corresponding load current according to the preset total current value and a set load point of each of the first power conversion modules in a power supply state; Determine, according to the relationship between the current total current value and the load current, a current value to be borne by the second power conversion module in place of the first power conversion module having a fault; The number of the second power conversion modules to be replaced is determined according to the relationship between the current value to be borne and the current value corresponding to each of the second power conversion modules, so as to control the second switches of the second power conversion modules corresponding to the number of replacement modules to be closed, and take over the power supply of the abnormal first power conversion module.

15. The method for powering a server according to claim 13, characterized in that: Controlling the second switch corresponding to the second power conversion module to close to take over the power supply of the abnormal first power conversion module, including: Acquire the number of all first power conversion modules and the number of abnormal first power conversion modules; Determine a first power value according to a relationship between the current total power output by all first power conversion modules and the set load point; Determine the power value borne by the first power conversion module with abnormality according to the first power value, the number of all first power conversion modules and the number of first power conversion modules with abnormality; The number of successor second power conversion modules is determined based on the relationship between the power value borne by each second power conversion module and the power value borne by the first power conversion module with an abnormality, so as to control the second switches of the second power conversion modules corresponding to the successor number to be closed, and take over the power supply of the first power conversion module with an abnormality.

16. The method for powering a server according to claim 10, characterized in that: When the abnormal first power conversion module is in an instantaneous fluctuation state, controlling the second switch corresponding to the second power conversion module to be closed to take over the power supply of the abnormal first power conversion module includes: Acquire a first output voltage, a first input voltage and a preset voltage range of the power supply conversion unit; If the first input voltage exceeds a preset value, and the first output voltage exceeds the preset voltage range or does not reach the preset voltage range, then all first power conversion modules are determined to be in an instantaneous fluctuation state; Determining a first voltage value or a second voltage value according to a relationship between the first output voltage and a maximum value or a minimum value of the preset voltage range; Determining the number of the second power conversion modules borne by the second power conversion modules according to the relationship between the power value borne by each second power conversion module and the first voltage value or the second voltage value; According to the number of the second power conversion modules, the second switch of the second power conversion module corresponding to the number of the second power conversion modules is controlled to close and supply power until the first input voltage does not exceed the preset value and switches to the corresponding working mode of the second power conversion module when the power supply state is reached.

17. An electronic device, characterized in that: include: Memory for storing computer programs; A processor, configured to implement the steps of the method for powering a server as described in any one of claims 10 to 16 when executing the computer program.

18. A non-volatile storage medium, characterized in that: The non-volatile storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for powering a server as described in any one of claims 10 to 16 are implemented.

19. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, the steps of the method for powering a server as described in any one of claims 10 to 16 are implemented.

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