Redundant Power Supply System, Method and Device of Server

Abstract

An embodiment of the present application provides a redundant power supply system, method and device for a server. Among them, the system includes: a host power supply and a slave power supply. The first primary fault detection and control unit is used to control the slave power supply to shut down actively, activate the first boost circuit unit to work, and send a first warning signal to the host power supply when detecting an abnormal power loss in the first primary high-voltage input part; the second primary fault detection and control unit is used to activate the second combining circuit unit to work when receiving the first warning signal, so as to trigger the first energy storage capacitor to transmit electric energy to the second energy storage capacitor, so that the second energy storage capacitor boosts the voltage. The present application solves the technical problems of low stability, low reliability and short power supply duration in the redundant power supply scheme of the related technology server, and thus achieves the effects of improving the stability, reliability and power supply duration of the redundant power supply scheme of the server.

Description

Technical Field

[0001] The embodiments of the present application relate to the fields of Inspur cloud computing technology and server power supply technology. Specifically, the embodiments of the present application relate to a redundant power supply system, method, and device for a server. Background Art

[0002] A server power supply module (Power Supply Unit, abbreviated as PSU) is a device used to stably supply power to a server and can ensure the normal operation of the server system. As the operating power of the server increases, the requirements for the reliability and stability of the server operation are getting higher and higher. In related technologies, the server redundant power supply scheme usually combines the configuration of ordinary power supply modules and redundant power supply modules. When there is a failed power supply module in the ordinary power supply modules, the power supply module in the redundant power supply module is used to replace the failed power supply module for power supply to ensure the normal operation of the server.

[0003] On the one hand, due to the limited volume size of the capacitors inside the power supply module, in the case of abnormal power-off of the power supply module, the scheme of using the redundant power supply module to replace the failed module for power supply in related technologies has a short duration of normal power supply to the server, which may cause problems such as data loss, system crash, and equipment damage to the server. The normal power supply duration of the server redundant power supply scheme is short, the stability is low, and the reliability is low. On the other hand, in related technologies, in the case where multiple ordinary power supply modules all have abnormalities, only the redundant power supply module can be relied on to supply power to the server, and the power supply is unstable, resulting in low stability and low reliability of the server redundant power supply scheme.

[0004] In view of the above problems, no effective solution has been proposed yet. Summary of the Invention

[0005] The embodiments of the present application provide a redundant power supply system, method, and device for a server, so as to at least solve the technical problems of low stability, low reliability, and short power supply duration of the server redundant power supply scheme in related technologies.

[0006] According to one aspect of the embodiments of the present application, a redundant power supply system for a server is provided. The system includes a main power supply and a slave power supply. Among them, the slave power supply includes a first primary high-voltage input part, a first primary fault detection and control unit, a first energy storage capacitor, a first combining circuit unit, a first boost circuit unit, and a first secondary low-voltage output part. The first secondary low-voltage output part is used to supply power to the server; the main power supply includes a second primary high-voltage input part, a second primary fault detection and control unit, a second energy storage capacitor, a second combining circuit unit, a second boost circuit unit, a second secondary low-voltage output part, and a second secondary fault detection and control unit. The second secondary low-voltage output part is used to supply power to the server; the first primary fault detection and control unit is configured to control the slave power supply to shut down actively, activate the first boost circuit unit to work, and send a first alarm signal to the main power supply when detecting an abnormal input power loss in the first primary high-voltage input part; the second primary fault detection and control unit is configured to activate the second combining circuit unit to work when receiving the first alarm signal, so as to trigger the first energy storage capacitor to transfer electric energy to the second energy storage capacitor, causing the second energy storage capacitor to boost the voltage.

[0007] Optionally, the second primary fault detection and control unit is further configured to control the main power supply to shut down actively, activate the second boost circuit unit to work, and send a second alarm signal to the slave power supply when detecting an abnormal input power loss in the second primary high-voltage input part; the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work when receiving the second alarm signal, so as to trigger the second energy storage capacitor to transfer electric energy to the first energy storage capacitor, causing the first energy storage capacitor to boost the voltage.

[0008] Optionally, the server load power consumption corresponding to the slave power supply is the same as that of the main power supply.

[0009] Optionally, the abnormal input power loss is that the high-voltage DC bus voltage decreases from the working voltage value to the target value, and the target value is determined by the power-off protection voltage and a preset fault protection threshold.

[0010] Optionally, the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work and send a first combining signal to the host power supply when the slave power supply is powered off and shut down; the second primary fault detection and control unit is further configured to activate the second combining circuit unit to work when receiving the first combining signal, so that the second energy storage capacitor is connected in parallel with the first energy storage capacitor, and the second energy storage capacitor and the first energy storage capacitor supply power to the second secondary low-voltage output part at the same time; the second primary fault detection and control unit is further configured to activate the second combining circuit unit to work and send a second combining signal to the slave power supply when the host power supply is powered off and shut down; the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work when receiving the second combining signal, so that the first energy storage capacitor is connected in parallel with the second energy storage capacitor, and the first energy storage capacitor and the second energy storage capacitor supply power to the first secondary low-voltage output part at the same time.

[0011] Optionally, the slave power supply further includes a first secondary fault detection and control unit, and the first secondary fault detection and control unit is used to detect output anomalies in the first secondary low-voltage output part; the host power supply further includes a second secondary fault detection and control unit, and the second secondary fault detection and control unit is used to detect output anomalies in the second secondary low-voltage output part; the first secondary fault detection and control unit is further configured to activate the first combining circuit unit to work and send a third combining signal to the host power supply when there is no input anomaly in the first primary high-voltage input part and an output anomaly is detected in the first secondary low-voltage output part; the second secondary fault detection and control unit is further configured to activate the second combining circuit unit to work when receiving the third combining signal, so that the first primary high-voltage input part and the second primary high-voltage input part supply power to the second secondary low-voltage output part at the same time; the second secondary fault detection and control unit is further configured to activate the second combining circuit unit to work and send a fourth combining signal to the slave power supply when there is no input anomaly in the second primary high-voltage input part and an output anomaly is detected in the second secondary low-voltage output part; the first secondary fault detection and control unit is further configured to activate the first combining circuit unit to work when receiving the fourth combining signal, so that the first primary high-voltage input part and the second primary high-voltage input part supply power to the first secondary low-voltage output part at the same time.

[0012] Optionally, the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work and send a fifth combining signal to the host power supply when there is no output anomaly in the first secondary low-voltage output part and an input anomaly is detected in the first primary high-voltage input part; the second primary fault detection and control unit is further configured to activate the second combining circuit unit to work when receiving the fifth combining signal, so that the second primary high-voltage input part supplies power to the first secondary low-voltage output part and the second secondary low-voltage output part.

[0013] Optionally, the second primary fault detection and control unit is further configured to activate the second combining circuit unit to work and send a sixth combining signal to the slave power supply when there is no output abnormality in the second secondary low-voltage output part and an input abnormality is detected in the second primary high-voltage input part; the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work when receiving the sixth combining signal, so that the first primary high-voltage input part supplies power to the first secondary low-voltage output part and the second secondary low-voltage output part.

[0014] Optionally, the first combining circuit unit is connected to the first energy storage capacitor, and the first combining circuit unit includes a first switch; the first boost circuit unit is connected to the first energy storage capacitor, and the first boost circuit unit includes a second switch, a first inductor, a first diode, and a first transistor; the second combining circuit unit is connected to the second energy storage capacitor, and the second combining circuit unit includes a third switch; the second boost circuit unit is connected to the second energy storage capacitor, and the second boost circuit unit includes a fourth switch, a second inductor, a second diode, and a second transistor; the first combining circuit unit is connected to the second combining circuit unit, and the first combining circuit unit is connected to the second boost circuit unit; the first boost circuit unit is connected to the second boost circuit unit, and the first boost circuit unit is connected to the second combining circuit unit.

[0015] Optionally, when the first combining circuit unit is activated to work, the first switch is switched from the off state to the on state; when the first boost circuit unit is activated to work, the second switch is switched from the off state to the on state; when the second combining circuit unit is activated to work, the third switch is switched from the off state to the on state; when the second boost circuit unit is activated to work, the fourth switch is switched from the off state to the on state.

[0016] Optionally, the first switch and the third switch are implemented by metal-oxide-semiconductor field-effect transistors; the first boost circuit unit and the second boost circuit unit are implemented by Boost boost converters.

[0017] According to another aspect of the present application, a redundant power management method for a server is provided, which is applied to the redundant power supply system of any of the above. The redundant power supply system includes a main power supply and a slave power supply. The redundant power management method includes: in response to an input power failure anomaly in the first primary high-voltage input part of the slave power supply corresponding to the server, controlling the slave power supply to shut down actively, activating the first boost circuit unit of the slave power supply to work, and sending a first alarm signal to the main power supply corresponding to the server, wherein whether there is an input power failure anomaly in the first primary high-voltage input part is detected and determined by the first primary fault detection and control unit of the slave power supply; in response to the main power supply receiving the first alarm signal, the second primary fault detection and control unit of the main power supply activates the second combining circuit unit of the main power supply to work, so as to trigger the first energy storage capacitor of the slave power supply to transmit electric energy to the second energy storage capacitor of the main power supply, causing the second energy storage capacitor to boost the voltage.

[0018] Optionally, the redundant power management method further includes: in response to an input power failure anomaly in the second primary high-voltage input part of the main power supply, controlling the main power supply to shut down actively, activating the second boost circuit unit of the main power supply to work, and sending a second alarm signal to the slave power supply, wherein whether there is an input power failure anomaly in the second primary high-voltage input part is detected and determined by the second primary fault detection and control unit; in response to the slave power supply receiving the second alarm signal, the first primary fault detection and control unit activates the first combining circuit unit of the slave power supply to work, so as to trigger the second energy storage capacitor to transmit electric energy to the first energy storage capacitor, causing the first energy storage capacitor to boost the voltage.

[0019] According to another aspect of the embodiments of the present application, a redundant power supply device for a server is further provided, including: a server and the redundant power supply system of any of the above. The redundant power supply system supplies power to the server through a power distribution board. The server includes a service board, a main control board, and a fan board.

[0020] In the embodiments of the present application, by using the first primary fault detection and control unit and the second primary detection and control unit, the situation of input power failure anomaly can be detected in time. Further, by using the introduced first combining circuit unit, first boost circuit unit, second combining circuit unit, and second boost circuit unit, the first energy storage capacitor transmits electric energy to the second energy storage capacitor to increase the voltage of the second energy storage capacitor. Thus, the present application achieves the purpose of supplying power to the server more persistently and stably by using the first primary fault detection and control unit, first combining circuit unit, first boost circuit unit, second primary fault detection and control unit, second combining circuit unit, and second boost circuit unit, thereby realizing the technical effects of improving the stability, reliability, and power supply duration of the server redundant power supply solution, and further solving the technical problems of low stability, low reliability, and short power supply duration of the server redundant power supply solution in the related art. Description of the Drawings

[0021] Figure 1 It is a structural block diagram of a redundant power supply system of a server according to an embodiment of the present application;

[0022] Figure 2 It is an electrical schematic diagram of an optional functional circuit according to an embodiment of the present application;

[0023] Figure 3 It is a schematic diagram of an optional redundant power supply system in the first abnormal situation according to an embodiment of the present application;

[0024] Figure 4 It is a flowchart of an optional redundant power supply system for handling the first abnormal situation according to an embodiment of the present application;

[0025] Figure 5 It is a flowchart of an optional redundant power supply system for handling the fourth abnormal situation according to an embodiment of the present application;

[0026] Figure 6 It is a structural block diagram of a server redundant power supply system according to the prior art;

[0027] Figure 7 It is a schematic diagram of an optional redundant power supply system of a server in the second abnormal situation according to an embodiment of the present application;

[0028] Figure 8 It is a schematic diagram of an optional redundant power supply system of a server in the third abnormal situation according to an embodiment of the present application;

[0029] Figure 9 It is a flowchart of an optional redundant power supply system for handling the third abnormal situation according to an embodiment of the present application;

[0030] Figure 10 It is a schematic diagram of an equivalent circuit of an optional functional circuit according to an embodiment of the present application;

[0031] Figure 11 It is a hardware structural block diagram of a terminal device for an optional redundant power supply management method for a server according to an embodiment of the present application;

[0032] Figure 12 It is a flowchart of a redundant power supply management method for a server according to an embodiment of the present application. Detailed implementation manners

[0033] In the following, embodiments of the present application will be described in detail with reference to the accompanying drawings and in conjunction with embodiments.

[0034] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence.

[0035] Under the operating environment of this embodiment, the embodiment of this application provides a redundant power supply system of a server as Figure 1 shown. Figure 1 It is a structural block diagram of a redundant power supply system of a server according to an embodiment of this application. As Figure 1 shown, the redundant power supply system includes a main power supply and a slave power supply. Among them, the slave power supply includes a first primary high-voltage input part, a first primary fault detection and control unit, a first energy storage capacitor, a first combining circuit unit, a first boost circuit unit and a first secondary low-voltage output part. The first secondary low-voltage output part is used to supply power to the server; the main power supply includes a second primary high-voltage input part, a second primary fault detection and control unit, a second energy storage capacitor, a second combining circuit unit, a second boost circuit unit, a second secondary low-voltage output part and a second secondary fault detection and control unit. The second secondary low-voltage output part is used to supply power to the server; the first primary fault detection and control unit is used to control the slave power supply to shut down actively, activate the first boost circuit unit to work, and send a first alarm signal to the main power supply when it detects an abnormal power loss in the first primary high-voltage input part; the second primary fault detection and control unit is used to activate the second combining circuit unit to work when receiving the first alarm signal, so as to trigger the first energy storage capacitor to transfer electric energy to the second energy storage capacitor, so that the second energy storage capacitor boosts the voltage.

[0036] The above-mentioned first primary high-voltage input part may include an input electromagnetic interference (EMI) filter rectifier circuit unit and a power factor correction (PFC) phase correction boost circuit unit. The above-mentioned input EMI filter rectifier circuit unit may include a filter and a rectifier. The above-mentioned filter may be used to filter high-frequency noise in the input power supply. The above-mentioned rectifier may be used to convert the input alternating current into direct current. The above-mentioned PFC phase correction boost circuit unit may be used to change the phase relationship between the power input current and the input voltage. By using the PFC phase correction boost circuit unit, it is possible to make the waveforms of the power input current and voltage closer to a sine wave, thereby reducing harmonics and improving power efficiency. The above-mentioned first energy storage capacitor may be used to store charges.

[0037] The above-mentioned first primary fault detection and control unit and the above-mentioned second primary fault detection and control unit may be implemented by a fault detection algorithm. The above-mentioned fault detection algorithm may include, but is not limited to: a fault mode effect analysis algorithm, a fault tree analysis algorithm, a predictive maintenance algorithm.

[0038] The above-mentioned first-stage low-voltage output part may include a direct current (DC)-DC isolation step-down circuit unit, a synchronous rectification single-channel unit, and an Oring isolation output circuit unit. The above-mentioned DC-DC isolation step-down circuit unit and the synchronous rectification single-channel unit can be used to step down the DC voltage to obtain a stable low-voltage constant DC voltage. The above-mentioned Oring isolation output circuit unit can be used to prevent current backflow.

[0039] The above-mentioned second primary high-voltage input part may include an input EMI filter rectification circuit unit and a PFC phase correction boost circuit unit. The above-mentioned second-stage low-voltage output part may include a DC-DC isolation step-down circuit unit, a synchronous rectification single-channel unit, and an Oring isolation output circuit unit. The above-mentioned second energy storage capacitor can be used to store charges. The above-mentioned first warning signal can be used to activate the second combining circuit unit when there is an input power loss abnormality in the first primary high-voltage input part.

[0040] The specific implementation manner of using the first primary fault detection and control unit to detect an input power loss abnormality in the first primary high-voltage input part, control the slave power supply to actively shut down, activate the first boost circuit unit, and send the first warning signal to the host power supply can be as follows: The first primary fault detection and control unit of the slave power supply is used to detect the first primary high-voltage input part of the slave power supply in real time. When the first primary fault detection and control unit of the slave power supply detects that there is an input power loss abnormality in the primary high-voltage input part of the slave power supply, the first primary fault detection and control unit sends a first shutdown signal to the slave power supply to control the slave power supply to actively shut down, so that the slave power supply is in a disconnected state from the server. Further, the first boost circuit unit is activated to make the first boost circuit unit in a working state, and a first warning signal is sent to the host power supply to activate the second combining circuit unit in the host power supply.

[0041] It should be noted that the above redundant power supply system may include one or more host power supplies and one or more slave power supplies.

[0042] The specific implementation manner of using the second primary fault detection and control unit to trigger the first energy storage capacitor to transfer electric energy to the second energy storage capacitor to boost the second energy storage capacitor can be as follows: When the second primary fault detection and control unit receives the first warning signal sent by the first primary fault detection and control unit, the second boost circuit unit is activated to make the second boost circuit unit in a working state, and a first energy transfer path from the first energy storage capacitor to the second energy storage capacitor is established, so that the first energy storage capacitor transfers electric energy to the second energy storage capacitor through the first energy transfer path, thereby boosting the second energy storage capacitor.

[0043] It is easy to understand that through the redundant power supply system of the above server, on the one hand, in the embodiments of the present application, by using the first primary fault detection and control unit and the second primary detection and control unit, it is possible to timely detect the abnormal power input loss in the first primary high-voltage input part of the slave power supply, improving the response speed of the server redundant power supply system; on the other hand, in the embodiments of the present application, by using the first boost circuit unit and the second combining circuit unit, the first energy storage capacitor transmits electric energy to the second energy storage capacitor to increase the voltage of the second energy storage capacitor. In the case of abnormal power input loss in the first primary high-voltage input part, the server redundant power supply system can supply power to the server more persistently and stably, improving the stability, reliability and power supply duration of the server redundant power supply solution.

[0044] The redundant power supply system of the above server in the embodiments of the present application will be further introduced below.

[0045] Optionally, in the redundant power supply system of the above server, the second primary fault detection and control unit is further configured to control the host power supply to actively shut down, activate the second boost circuit unit to work, and send a second alarm signal to the slave power supply when detecting an abnormal power input loss in the second primary high-voltage input part; the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work when receiving the second alarm signal to trigger the second energy storage capacitor to transmit electric energy to the first energy storage capacitor, so that the voltage of the first energy storage capacitor increases.

[0046] The above second alarm signal can be used to activate the first combining circuit unit to work when there is an abnormal power input loss in the second primary high-voltage input part.

[0047] It is easy to understand that through the redundant power supply system of the above server, on the one hand, in the embodiments of the present application, by using the first primary fault detection and control unit and the second primary detection and control unit, it is possible to timely detect the abnormal power input loss in the second primary high-voltage input part of the host power supply, so as to quickly take measures for the host power supply and the slave power supply, improving the response speed of the server redundant power supply system; on the other hand, in the embodiments of the present application, by using the first combining circuit unit and the second boost circuit unit, the second energy storage capacitor transmits electric energy to the first energy storage capacitor to increase the voltage of the first energy storage capacitor. In the case of abnormal power input loss in the second primary high-voltage input part, the server redundant power supply system can supply power to the server more persistently and stably, improving the stability, reliability and power supply duration of the server redundant power supply solution.

[0048] Optionally, in the redundant power supply system of the above server, the power consumption of the server load corresponding to the slave power supply is the same as that of the host power supply.

[0049] The above server load power consumption may be the electric power consumed by the server load. As the server load power increases, the above server load power consumption also increases.

[0050] In an exemplary application scenario, still as Figure 1 shown, the above redundant power supply system includes a main power supply (denoted as PSU2) and a slave power supply (denoted as PSU1). When both PSU1 and PSU2 are in normal working states, PSU1 and PSU2 work in a current-sharing manner, that is, PSU1 and PSU2 provide the same power support for the server to share the total load power consumption of the server.

[0051] It is easy to understand that through the redundant power supply system of the above server, in the embodiments of the present application, the main power supply and the slave power supply provide the same power support for the server, share the total load power consumption of the server, can more accurately control the overall output of the power supply system, avoid the situation of power overload or insufficient power load of the main power supply / slave power supply, more reasonably allocate energy resources, avoid unnecessary energy waste, can extend the service efficiency and service life of the main power supply and the slave power supply, thereby improving the stability and reliability of the redundant power supply system of the server.

[0052] Optionally, in the redundant power supply system of the above server, the input power failure anomaly is that the high-voltage DC bus voltage decreases from the working voltage value to the target value, and the target value is determined by the power-off protection voltage and the preset fault protection threshold.

[0053] The above high-voltage DC bus voltage may be the DC voltage on the first energy storage capacitor, and the high-voltage DC bus voltage may also be the DC voltage on the second energy storage capacitor.

[0054] The above working voltage value may be the DC voltage on the second energy storage capacitor when the main power supply is in a normal working state, and the working voltage value may also be the DC voltage on the first energy storage capacitor when the slave power supply is in a normal working state.

[0055] The above target value can be used to assist in determining whether there is an input power failure anomaly in the first primary high-voltage input part or the second primary high-voltage input part. The target value can be used to represent the voltage value that can still meet the server power supply demand when the main power supply / slave power supply is in the state of input power failure anomaly. When the high-voltage DC bus voltage decreases from the working voltage value to the target value, it is determined that there is an input power failure anomaly in the first primary high-voltage input part or the second primary high-voltage input part.

[0056] The above power-off protection voltage can be used to trigger the automatic power-off of the host power supply / slave power supply. This power-off protection voltage can be set according to the actual situation. When the high-voltage DC bus voltage is lower than the power-off protection voltage, the host power supply / slave power supply will automatically power off to avoid damage to the host power supply / slave power supply.

[0057] The above preset fault protection threshold can be a voltage value set according to the actual situation.

[0058] The specific implementation manner of determining the target value from the power-off protection voltage and the preset fault protection threshold can be: setting the power-off protection voltage and the preset fault protection threshold in the redundant power supply system of the server, and adding the power-off protection voltage and the preset fault protection threshold to determine the target value.

[0059] In an exemplary application scenario, still as Figure 1 shown, the above server may include a service board load, a main control board load, and a fan board load. The above service board load, the above main control board load, and the above fan board load may constitute the load system corresponding to the server. The above redundant power supply system includes a host power supply (denoted as PSU2) and a slave power supply (denoted as PSU1). The first energy storage capacitor C1 and the first secondary low-voltage output part can be connected through a fifth switch (denoted as S3), the second energy storage capacitor C2 and the second secondary low-voltage output part can be connected through a sixth switch (denoted as S4), the first energy storage capacitor C1 and the first primary high-voltage input part can be connected through a seventh switch (denoted as S5), and the second energy storage capacitor C2 and the second primary high-voltage input part can be connected through an eighth switch (denoted as S6). The PSU1 and PSU2 are powered by inputting 220Vac alternating current to the first primary high-voltage input part of PSU1 and the second primary high-voltage input part of PSU2.

[0060] Still in the above application scenario, still as Figure 1As shown in the figure, a functional circuit is added at the first energy storage capacitor and the second energy storage capacitor. The functional circuit may include a first combining circuit unit, a first boosting circuit unit, a second combining circuit unit, and a second boosting circuit unit. Denote the voltage value output by the first secondary low-voltage output part as Vout1, and the voltage value output by the second secondary low-voltage output part as Vout2. The high-voltage DC bus integrates Vout1 and Vout2 into Vout and transmits it to the server. Denote the working voltage value corresponding to PSU1 as Vbulk1, the working voltage value corresponding to PSU2 as Vbulk2, the power-off protection voltage corresponding to PSU1 as Vbulk11, and the power-off protection voltage corresponding to PSU2 as Vbulk22. Set the preset fault protection threshold according to the actual situation (e.g., 30V, 50V) and denote it as K. The target value of the high-voltage DC bus voltage corresponding to PSU1 is Vbulk11 + K, and the target value of the high-voltage DC bus voltage corresponding to PSU2 is Vbulk22 + K. When the high-voltage DC bus voltage does not decrease from the working voltage value to the target value, PSU1 and PSU2 can still normally provide power support for the server.

[0061] Still in the above application scenario, Figure 2 is an electrical schematic diagram of an optional functional circuit according to an embodiment of the present application, which can implement the above-mentioned first combining circuit unit (i.e., the PUS1 combining unit), the above-mentioned first boosting circuit unit (i.e., the PSU1 boosting circuit unit), the above-mentioned second combining circuit unit (i.e., the PUS2 combining unit), and the above-mentioned second boosting circuit unit (i.e., the PSU2 boosting circuit unit). As Figure 2 shown, when both PSU1 and PSU2 are in a normal working state, PSU1 and PSU2 provide the same power support for the server. Therefore, Vbulk1 and Vbulk2 are equal, and Vbulk11 and Vbulk22 are set to equal values. When PSU1 or PSU2 is in an abnormal state of input power loss, the time for Vbulk1 to decrease to Vbulk11 is the same as the time for Vbulk2 to decrease to Vbulk22. Correspondingly, the time for Vbulk1 to decrease to Vbulk11 + K is the same as the time for Vbulk2 to decrease to Vbulk22 + K. Denote the situation when the first primary fault detection and control unit detects an abnormal input power loss in the first primary high-voltage input part (i.e., when the high-voltage DC bus voltage corresponding to PSU1 decreases from Vbulk1 to Vbulk11 + K) as the first abnormal situation.

[0062] Still in the above application scenario, Figure 3 is a schematic diagram of a redundant power supply system in the first abnormal situation according to an embodiment of the present application, that is, Figure 3 is Figure 1Simplified diagram of the redundant power supply system of the server shown in the first abnormal situation. Figure 4 It is a flowchart of an optional redundant power supply system for processing the first abnormal situation according to an embodiment of the present application. As Figure 4 shown, when the first primary fault detection and control unit detects an input power loss abnormality in the first primary high-voltage input section (i.e., when the high-voltage DC bus voltage corresponding to PSU1 decreases from Vbulk1 to Vbulk11+K), the first primary fault detection and control unit controls PSU1 to actively shut down, activates the first boost circuit unit to work, and sends a first warning signal to PSU2; after receiving the first warning signal, PSU2 activates the second combining circuit unit to work, and uses the first boost circuit unit and the second combining circuit unit to establish a first energy transmission path between the first energy storage capacitor and the second energy storage capacitor. The voltage Vbulk11+K on the first energy storage capacitor in PSU1 reaches the second energy storage capacitor through the first energy transmission path, so that the voltage Vbulk22+K on the second energy storage capacitor of PSU2 is boosted to Vbulk2, extending the time for PSU2 to decrease from Vbulk2 to Vbulk22 and improving the power loss holding time of PSU2.

[0063] It is easy to understand that through the redundant power supply system of the above server, in the embodiment of the present application, by detecting the target value of the high-voltage DC bus voltage, the response speed of the redundant power supply system of the server can be effectively improved in the case of input power loss abnormality of the main power supply / slave power supply, the power loss holding time can be extended, and the stability and reliability of the server system can be improved.

[0064] Optionally, in the redundant power supply system of the above server, the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work and send a first combining signal to the main power supply when the slave power supply loses power and shuts down; the second primary fault detection and control unit is further configured to activate the second combining circuit unit to work when receiving the first combining signal, so that the second energy storage capacitor is connected in parallel with the first energy storage capacitor, and the second energy storage capacitor and the first energy storage capacitor supply power to the second secondary low-voltage output section at the same time; the second primary fault detection and control unit is further configured to activate the second combining circuit unit to work and send a second combining signal to the slave power supply when the main power supply loses power and shuts down; the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work when receiving the second combining signal, so that the first energy storage capacitor is connected in parallel with the second energy storage capacitor, and the first energy storage capacitor and the second energy storage capacitor supply power to the first secondary low-voltage output section at the same time.

[0065] The above first combining signal can be used to activate the second combining circuit unit to work when the slave power supply loses power and shuts down. The above second combining signal can be used to activate the first combining circuit unit to work when the main power supply loses power and shuts down.

[0066] When the slave power supply loses power and shuts down, the activation of the first combining unit and the specific implementation of activating the second combining circuit unit can be as follows: The first primary fault detection and control unit in the slave power supply continuously detects the state of the slave power supply. When the first primary fault detection and control unit detects that the slave power supply is in a power-off and shutdown state, the first primary fault detection and control unit activates the first combining circuit unit, causing the first combining circuit unit to be in an operating state and sending a first combining signal to the host power supply. Further, when the second primary fault detection and control unit of the host power supply receives the first combining signal, it activates the second combining circuit unit, causing the second combining circuit unit to be in an operating state, establishing a second energy transfer path between the second energy storage capacitor and the first energy storage capacitor, making the second energy storage capacitor and the first energy storage capacitor in parallel, and the second energy storage capacitor and the first energy storage capacitor simultaneously supply power to the second secondary low-voltage output part.

[0067] Similarly, when the host power supply loses power and shuts down, the specific implementation of activating the first combining unit and the second combining circuit unit can be determined.

[0068] Still in the above application scenario, still as Figure 2 shown, when both PSU1 and PSU2 are in a normal operating state, the first normal output power of PSU1 (denoted as, ), is equal to the second normal output power of PSU2 (denoted as, ). Denote the capacitance value corresponding to the first energy storage capacitor as and the capacitance value corresponding to the second energy storage capacitor as .

[0069] Still in the above application scenario, denote the situation where PSU2 is in a power-off and shutdown state as the fourth abnormal situation. Figure 5 FIG. is a flowchart of an optional redundant power supply system for handling the fourth abnormal situation according to an embodiment of the present application. As Figure 5 shown, when the second primary fault detection and control unit in PSU2 detects that PSU2 is in a power-off and shutdown state, the second primary fault detection and control unit activates the second combining circuit unit, causing the second combining circuit unit to be in an operating state and sending a second combining signal to the slave power supply. Further, when the first primary fault detection and control unit of the slave power supply receives the second combining signal, it activates the first combining circuit unit, causing the first combining circuit unit to be in an operating state, establishing a second energy transfer path between the first energy storage capacitor and the second energy storage capacitor, making the first energy storage capacitor and the second energy storage capacitor in parallel, and the first energy storage capacitor and the second energy storage capacitor simultaneously supply power to the first secondary low-voltage output part. At this time, the first common output power of PSU1 (denoted as, ) can be calculated by Equation (1).

[0070] Formula (1)

[0071] Figure 6 is a structural block diagram of a server redundant power supply system according to the prior art. If the server redundant power supply scheme in the related art is adopted, such as Figure 6 shown, when PSU2 is in the power-off and shutdown state, only the first energy storage capacitor can be used to supply power to the first secondary low-voltage output part. The duration (denoted as Tholdup1) for which the server redundant power supply scheme that only configures redundant power modules in the related art can provide a normal power supply voltage to the server can be calculated by Formula (2).

[0072] Formula (2)

[0073] If the technical solution of the embodiment of the present application is adopted, the duration (denoted as Tholdup2) for which the redundant power supply system of the server can provide a normal power supply voltage to the server can be calculated by Formula (3).

[0074] Formula (3)

[0075] It can be seen from this that the technical solution of the embodiment of the present application can extend the duration for which the redundant power supply system of the server provides a normal power supply voltage to the server, avoiding the problem that the duration for which the redundant power supply system of the server can provide a normal power supply voltage is shortened when the main power supply or the slave power supply is in the power-off and shutdown state, and improving the reliability and stability of the server system.

[0076] It is easy to understand that through the above-mentioned redundant power supply system of the server, in the embodiment of the present application, by using the first combining unit and the second combining circuit, the first energy storage capacitor and the second energy storage capacitor can be connected in parallel, so that when the slave power supply or the main power supply is in the power-off and shutdown state, the energy stored in the first energy storage capacitor or the second energy storage capacitor can still be fully utilized, extending the duration for which the redundant power supply system of the server can provide a normal power supply voltage to the server, and improving the stability and reliability of the normal operation of the server. Compared with the scheme that only configures redundant power modules in the related art, the redundant power supply system of the server in the embodiment of the present application can provide a normal power supply voltage to the server for a longer time when the slave power supply or the main power supply is in the power-off and shutdown state. Therefore, the redundant power supply system in the embodiment of the present application has higher stability and higher reliability.

[0077] Optionally, in the redundant power supply system of the above server, the slave power supply further includes a first secondary fault detection and control unit, and the first secondary fault detection and control unit is used to detect output anomalies in the first secondary low-voltage output section; the master power supply further includes a second secondary fault detection and control unit, and the second secondary fault detection and control unit is used to detect output anomalies in the second secondary low-voltage output section; the first secondary fault detection and control unit is further used to activate the first combining circuit unit to work and send a third combining signal to the master power supply when there is no input anomaly in the first primary high-voltage input section and an output anomaly is detected in the first secondary low-voltage output section; the second secondary fault detection and control unit is further used to activate the second combining circuit unit to work when receiving the third combining signal, so that the first primary high-voltage input section and the second primary high-voltage input section supply power to the second secondary low-voltage output section simultaneously; the second secondary fault detection and control unit is further used to activate the second combining circuit unit to work and send a fourth combining signal to the slave power supply when there is no input anomaly in the second primary high-voltage input section and an output anomaly is detected in the second secondary low-voltage output section; the first secondary fault detection and control unit is further used to activate the first combining circuit unit to work when receiving the fourth combining signal, so that the first primary high-voltage input section and the second primary high-voltage input section supply power to the first secondary low-voltage output section simultaneously.

[0078] The above third combining signal can be used to activate the second combining circuit unit to work when there is no input anomaly in the first primary high-voltage input section and an output anomaly exists in the first secondary low-voltage output section. The above fourth combining signal can be used to activate the first combining circuit unit to work when there is no input anomaly in the second primary high-voltage input section and an output anomaly exists in the second secondary low-voltage output section.

[0079] In the case where there is no input anomaly in the first primary high-voltage input section and an output anomaly exists in the first secondary low-voltage output section, the specific implementation manners of activating the first combining circuit unit to work and activating the second combining circuit unit to work can be as follows: the first secondary fault detection and control unit in the slave power supply detects the output of the first secondary low-voltage output section in real time. When there is no input anomaly in the first primary high-voltage input section and an output anomaly is detected in the first secondary low-voltage output section, the first secondary fault detection and control unit activates the first combining circuit unit to make the first combining circuit unit in a working state and sends a third combining signal to the master power supply; further, when the second secondary fault detection and control unit of the master power supply receives the third combining signal, it activates the second combining circuit unit to make the second combining circuit unit in a working state, so that the first primary high-voltage input section and the second primary high-voltage input section supply power to the second secondary low-voltage output section simultaneously.

[0080] Similarly, in the case where there is no input anomaly in the second primary high-voltage input section and there is an output anomaly in the second secondary low-voltage output section, the specific implementation manners of activating the first combining circuit unit and the second combining circuit unit can be determined.

[0081] In an exemplary application scenario, the situation where the second secondary fault detection and control unit of PSU2 detects an output anomaly in the second secondary low-voltage output section and the second primary fault detection and control unit does not detect an input anomaly in the second primary high-voltage input section is denoted as the second anomaly situation. Figure 7 It is a schematic diagram of a redundant power supply system of a server in the second anomaly situation according to an optional embodiment of the present application, that is, Figure 7 It is Figure 1 a simplified diagram of the redundant power supply system of the server shown in the second anomaly situation, as Figure 7 shown, when the second secondary fault detection and control unit of PSU2 detects an output anomaly in the second secondary low-voltage output section and the second primary fault detection and control unit does not detect an input anomaly in the second primary high-voltage input section, the second secondary fault detection and control unit activates the second combining circuit unit to make the second combining circuit unit in a working state and sends a fourth combining signal to the host power supply; further, when the second secondary fault detection and control unit of the host power supply receives the fourth combining signal, it activates the first combining circuit unit to make the first combining circuit unit in a working state, so that the first primary high-voltage input section and the second primary high-voltage input section supply power to the first secondary low-voltage output section simultaneously. Since the second primary high-voltage input section of PSU2 is still in a normal working state in the case where there is no input anomaly in the second primary high-voltage input section and there is an output anomaly in the second secondary low-voltage output section, therefore, by using the first combining circuit unit and the second combining circuit unit, the power supply resources of the second primary high-voltage input section of PSU2 can be fully utilized, and the voltage value corresponding to the first secondary low-voltage output section of PSU1 (denoted as Vbulk3) can be increased.

[0082] In contrast, if the scheme of only configuring redundant power supply modules in the related art is adopted, still as Figure 6 shown, if there is an output anomaly in the second secondary low-voltage output section of PSU2, only PSU1 can be used to supply power to the server. If there is also an output anomaly in PSU1, it will cause the server to shut down, and the stability and reliability of the server redundant power supply scheme in the related art are low.

[0083] It is easy to understand that, through the redundant power supply system of the above server, in the embodiments of the present application, by using the first combining unit and the second combining circuit, the power supply resources of the first primary high-voltage input part / the second primary high-voltage input part can be utilized more fully, and the duration during which the redundant power supply system of the server can provide a normal power supply voltage for the server can be extended, thereby improving the stability and reliability of the normal operation of the server. Compared with the solution of only configuring a redundant power supply module in the related art, in the redundant power supply system of the server in the embodiments of the present application, when there is an output abnormality only in the first secondary low-voltage output part or only in the second secondary low-voltage output part, the time during which the redundant power supply system of the server can provide a normal power supply voltage is longer, and the stability and reliability of the redundant power supply system of the server are higher.

[0084] Optionally, in the redundant power supply system of the above server, the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work and send a fifth combining signal to the host power supply when there is no output abnormality in the first secondary low-voltage output part and an input abnormality is detected in the first primary high-voltage input part; the second primary fault detection and control unit is further configured to activate the second combining circuit unit to work when receiving the fifth combining signal, so that the second primary high-voltage input part supplies power to the first secondary low-voltage output part and the second secondary low-voltage output part.

[0085] The above fifth combining signal can be used to activate the second combining circuit unit to work when there is no output abnormality in the first secondary low-voltage output part and an input abnormality exists in the first primary high-voltage input part.

[0086] When there is no output abnormality in the first secondary low-voltage output part and an input abnormality exists in the first primary high-voltage input part, the specific implementation manners of activating the first combining circuit unit to work and activating the second combining circuit unit to work may be as follows: the first primary fault detection and control unit in the slave power supply detects the input of the first primary high-voltage input part in real time. When there is no output abnormality in the first secondary low-voltage output part and an input abnormality is detected in the first primary high-voltage input part, the first primary fault detection and control unit activates the first combining circuit unit to make the first combining circuit unit in a working state and sends a fifth combining signal to the host power supply; further, when the second primary fault detection and control unit of the host power supply receives the fifth combining signal, it activates the second combining circuit unit to make the second combining circuit unit in a working state, so that the second primary high-voltage input part supplies power to the first secondary low-voltage output part and the second secondary low-voltage output part.

[0087] It is easy to understand that, through the redundant power supply system of the above server, in the embodiments of the present application, by using the first combining unit and the second combining circuit, it is possible to supply power to the first secondary low-voltage output part and the second secondary low-voltage output part simultaneously by using the second primary high-voltage input part when there is an input abnormality only in the first primary high-voltage input part, avoiding the problem of server system interruption caused by the input abnormality in the first primary high-voltage input part, and improving the reliability and stability of the redundant power supply system of the server.

[0088] Optionally, in the redundant power supply system of the above server, the second primary fault detection and control unit is further configured to activate the second combining circuit unit to work and send a sixth combining signal to the slave power supply when there is no output abnormality in the second secondary low-voltage output part and it is detected that there is an input abnormality in the second primary high-voltage input part; the first primary fault detection and control unit is further configured to activate the first combining circuit unit to work when receiving the sixth combining signal, so that the first primary high-voltage input part supplies power to the first secondary low-voltage output part and the second secondary low-voltage output part.

[0089] The above sixth combining signal can be used to activate the first combining circuit unit to work when there is no output abnormality in the second secondary low-voltage output part and there is an input abnormality in the second primary high-voltage input part.

[0090] In the case where there is no output abnormality in the second secondary low-voltage output part and there is an input abnormality in the second primary high-voltage input part, the specific implementation manners of activating the first combining circuit unit to work and activating the second combining circuit unit to work may be: the second primary fault detection and control unit in the host power supply detects the input of the second primary high-voltage input part in real time. When there is no output abnormality in the second secondary low-voltage output part and it is detected that there is an output abnormality in the second primary high-voltage input part, the second primary fault detection and control unit activates the second combining circuit unit to make the second combining circuit unit in a working state and sends a sixth combining signal to the host power supply; further, when the first primary fault detection and control unit of the slave power supply receives the sixth combining signal, it activates the first combining circuit unit to make the first combining circuit unit in a working state, so that the first primary high-voltage input part supplies power to the first secondary low-voltage output part and the second secondary low-voltage output part.

[0091] In an exemplary application scenario, the situation where the second primary fault detection and control unit of PSU2 detects that there is an input abnormality in the second primary high-voltage input part and the second secondary fault detection and control unit does not detect an output abnormality in the second secondary low-voltage output part is recorded as the third abnormal situation. Figure 8 It is a schematic diagram of a redundant power supply system of a server in a third abnormal situation according to an optional embodiment of the present application, that is, Figure 8 It is Figure 1Simplified diagram of the redundant power supply system of the server shown in the third abnormal situation Figure 9 It is a flowchart of an optional redundant power supply system for handling the third abnormal situation according to an embodiment of the present application, as Figure 9 shown, when the second primary fault detection and control unit of PSU2 detects an input abnormality in the second primary high-voltage input section and the second secondary fault detection and control unit does not detect an output abnormality in the second secondary low-voltage output section, the second primary fault detection and control unit activates the second combining circuit unit, puts the second combining circuit unit into the working state, and sends a sixth combining signal to the main power supply; further, when the first secondary fault detection and control unit of the slave power supply receives the sixth combining signal, it activates the first combining circuit unit, puts the first combining circuit unit into the working state, so that the first primary high-voltage input section supplies power to both the first secondary low-voltage output section and the second secondary low-voltage output section simultaneously. Since the second secondary low-voltage output section in PSU2 can still operate normally when the second primary fault detection and control unit of PSU2 detects an input abnormality in the second primary high-voltage input section and the second secondary fault detection and control unit does not detect an output abnormality in the second secondary low-voltage output section, the voltage value corresponding to the first primary high-voltage input section of PSU1 (denoted as Vbulk4) is used to enable the second secondary low-voltage output section of PSU2 to continue operating, ensuring the stability of the server operation.

[0092] It is easy to understand that through the redundant power supply system of the above server, in the embodiment of the present application, by using the first combining unit and the second combining circuit, it is possible to supply power to both the first secondary low-voltage output section and the second secondary low-voltage output section simultaneously with the second primary high-voltage input section in the case where only the first primary high-voltage input section has an input abnormality, avoiding the problem of the server system interruption caused by the input abnormality of the first primary high-voltage input section, and improving the reliability and stability of the redundant power supply system of the server.

[0093] Optionally, in the redundant power supply system of the above server, the first combining circuit unit is connected to the first energy storage capacitor, and the first combining circuit unit includes a first switch; the first boost circuit unit is connected to the first energy storage capacitor, and the first boost circuit unit includes a second switch, a first inductor, a first diode, and a first transistor; the second combining circuit unit is connected to the second energy storage capacitor, and the second combining circuit unit includes a third switch; the second boost circuit unit is connected to the second energy storage capacitor, and the second boost circuit unit includes a fourth switch, a second inductor, a second diode, and a second transistor; the first combining circuit unit is connected to the second combining circuit unit, and the first combining circuit unit is connected to the second boost circuit unit; the first boost circuit unit is connected to the second boost circuit unit, and the first boost circuit unit is connected to the second combining circuit unit.

[0094] In an exemplary application scenario, still as Figure 2 shown, the circuit diagram includes a first combining circuit unit (i.e., the PSU1 combining unit), a second combining circuit unit (i.e., the PSU2 combining unit), a first boosting circuit unit (i.e., the PSU1 boosting circuit unit), and a second boosting circuit unit (i.e., the PSU2 boosting circuit unit). Among them, the PSU1 combining circuit unit is connected to the first energy storage capacitor (denoted as C1), and the PSU1 combining unit includes a first switch (denoted as S11); the PSU1 boosting circuit unit is connected to C1, and the PSU1 boosting circuit unit includes a second switch (denoted as S1), a first inductor (denoted as L1), a first diode (denoted as D1), and a first transistor; the PSU2 combining unit is connected to the second energy storage capacitor (denoted as C2), and the PSU2 combining circuit unit includes a third switch (denoted as S22); the PSU2 boosting circuit unit is connected to C2, and the second boosting circuit unit includes a fourth switch (denoted as S2), a second inductor (denoted as L2), a second diode (denoted as D2), and a second transistor; the PSU1 combining unit is connected to the PSU2 combining unit, and the PSU1 combining circuit unit is connected to the PSU2 boosting circuit unit; the PSU1 boosting circuit unit is connected to the PSU2 boosting circuit unit, and the PSU1 boosting circuit unit is connected to the PSU2 combining unit.

[0095] It is easy to understand that through the redundant power supply system of the above server, in the embodiments of the present application, by using the constructed first combining circuit unit, first boosting circuit unit, second combining circuit unit, and second boosting circuit unit, in the case of a failure of the slave power supply or the host power supply, the energy resources of the slave power supply or the host power supply are more flexibly allocated, and the energy resources of the slave power supply or the host power supply are more fully utilized, improving the stability and reliability of the redundant power supply system of the server.

[0096] Optionally, in the redundant power supply system of the above server, when the first combining circuit unit is activated to work, the first switch is switched from the off state to the on state; when the first boosting circuit unit is activated to work, the second switch is switched from the off state to the on state; when the second combining circuit unit is activated to work, the third switch is switched from the off state to the on state; when the second boosting circuit unit is activated to work, the fourth switch is switched from the off state to the on state.

[0097] In an exemplary application scenario, still Figure 2As shown, the combining unit of PSU1 includes a first switch (denoted as S11), the boosting circuit unit of PSU1 includes a second switch (denoted as S1), the combining unit of PSU2 includes a third switch (denoted as S22), and the boosting circuit unit of PSU2 includes a fourth switch (denoted as S2). When activating the first combining circuit unit to work, S11 switches from the open state to the closed state; when activating the first boosting circuit unit to work, S1 switches from the open state to the closed state; when activating the second combining circuit unit to work, S22 switches from the open state to the closed state; when activating the second boosting circuit unit to work, S2 switches from the open state to the closed state.

[0098] Figure 10 It is a schematic diagram of an equivalent circuit of an optional functional circuit according to an embodiment of the present application, that is, Figure 10 is Figure 2 the equivalent circuit diagram of, as Figure 10 shown, when the first primary fault detection and control unit detects that the high-voltage DC bus voltage corresponding to PSU1 decreases from Vbulk1 to Vbulk11, the first primary fault detection and control unit disconnects the fifth switch between the first energy storage capacitor and the first secondary low-voltage output part, controls PSU1 to shut down actively, controls to close S1, activates the first boosting circuit unit to work, and sends a first warning signal to PSU2; after receiving the first warning signal, PSU2 controls to close S22, activates the second combining circuit unit to work, and uses the first boosting circuit unit and the second combining circuit unit to establish a first energy transfer path between the first energy storage capacitor and the second energy storage capacitor.

[0099] In another exemplary application scenario, still as Figure 2 shown, when the second secondary fault detection and control unit of PSU2 detects an output anomaly in the second secondary low-voltage output part and the second primary fault detection and control unit does not detect an input anomaly in the second primary high-voltage input part, the second secondary fault detection and control unit controls to close S22, activates the second combining circuit unit to work, and sends a fourth combining signal to the host power supply; further, when the second secondary fault detection and control unit of the host power supply receives the fourth combining signal, it controls to close S11, activates the first combining circuit unit to work, so that the first primary high-voltage input part and the second primary high-voltage input part supply power to the first secondary low-voltage output part simultaneously.

[0100] Still in the above application scenario, still as Figure 2As shown, when the second primary fault detection and control unit of PSU2 detects an input anomaly in the second primary high-voltage input section and the second secondary fault detection and control unit does not detect an output anomaly in the second secondary low-voltage output section, the second primary fault detection and control unit controls the closing of S22, activates the second combining circuit unit to work, and sends a sixth combining signal to the main power supply. Further, when the first secondary fault detection and control unit of the slave power supply receives the sixth combining signal, it controls the closing of S11, activates the first combining circuit unit to work, so that the first primary high-voltage input section supplies power to both the first secondary low-voltage output section and the second secondary low-voltage output section simultaneously.

[0101] It is easy to understand that, through the redundant power supply system of the above server, in the embodiments of the present application, by using the first switch, the second switch, the third switch, and the fourth switch to control the first and second combining circuit units, the first and second boost circuit units, corresponding measures can be effectively taken when the main power supply or the slave power supply fails, and power can be supplied to the server system more stably, improving the stability and reliability of the redundant power supply system of the server.

[0102] Optionally, in the redundant power supply system of the above server, the first switch and the third switch are implemented by metal-oxide-semiconductor field-effect transistors; the first boost circuit unit and the second boost circuit unit are implemented by Boost boost converters.

[0103] It should be noted that the above first switch and third switch can also be implemented by a power semiconductor device (Insulated Gate Bipolar Transistor, abbreviated as IGBT). By using IGBT, it can have lower conduction loss and higher switching speed in high-voltage and large-current applications, improving the power utilization rate of the slave power supply / main power supply and the response speed of the redundant power supply system of the server.

[0104] In an exemplary application scenario, still as Figure 10 shown, when both PSU1 and PSU2 are in a normal working state, PSU1 and PSU2 work in a current-sharing manner, and the capacitance value C v1 corresponding to the first energy storage capacitor and the capacitance value C v1Equal, the first normal output power Pout1 of PSU1 is equal to the second normal output power Pout2 of PSU2, the working voltage Vbulk1 corresponding to PSU1 is equal to the working voltage Vbulk2 corresponding to PSU2, and the time for the high-voltage DC bus voltage corresponding to PSU1 to decrease from Vbulk1 to Vbulk11 is equal to the time for the high-voltage DC bus voltage corresponding to PSU2 to decrease from Vbulk2 to Vbulk22. The boost circuit unit of PSU1 is implemented by a Boost converter. Denote the charge amount on the first energy storage capacitor as Q1, the charge amount on the second energy storage capacitor as Q2, and the sum of the charge amount on the first energy storage capacitor and the charge amount on the second energy storage capacitor as the total charge amount Q total .

[0105] When the first primary fault detection and control unit detects that the high-voltage DC bus voltage corresponding to PSU1 decreases from Vbulk1 to Vbulk11, the voltage Vbulk11 on the first energy storage capacitor in PSU1 reaches the second energy storage capacitor through the first energy transfer path, causing the voltage Vbulk22 on the second energy storage capacitor of PSU2 to boost, maintaining the voltage on the second energy storage capacitor above Vbulk22, extending the time for PSU2 to decrease from Vbulk2 to Vbulk22, and increasing the power-off hold time of PSU2.

[0106] Assume that the boost losses of Q1 and Q2 are ignored during the voltage charging and boosting process of the second energy storage capacitor, then Q total Remains unchanged during the voltage charging and boosting process of the second energy storage capacitor. The extended duration (denoted as Tholdup3) for which the redundant power supply system of the server can provide a normal supply voltage to the server during the process of the high-voltage DC bus voltage corresponding to PSU1 decreasing from Vbulk1 to Vbulk11 can be calculated by Equation (4).

[0107] Equation (4)

[0108] When the voltage on the first energy storage capacitor is Vbulk11, Q1 can be calculated by Equation (5).

[0109] Equation (5)

[0110] Since when both PSU1 and PSU2 are in a normal working state, PSU1 and PSU2 operate in a current-sharing manner, and at this time the voltage on the first energy storage capacitor is Vbulk22, Q2 can be calculated by Equation (6).

[0111] Equation (6)

[0112] Q totalIt can be calculated by Equation (7).

[0113] Equation (7)

[0114] Since PSU1 and PSU2 operate in a current-sharing manner when both are in normal working conditions and Q2 is equal to Q1, Equation (7) can be converted into Equation (8).

[0115] Equation (8)

[0116] When the high-voltage DC bus voltage corresponding to PSU1 decreases from Vbulk1 to Vbulk11, the first primary fault detection and control unit disconnects the fifth switch between the first energy storage capacitor and the first secondary low-voltage output part, controlling PSU1 to shut down actively. At this time, only PSU2 is in the working state, and the second superimposed output power of PSU2 (denoted as Pout22) can be calculated by Equation (9).

[0117] Equation (9)

[0118] Since the voltage Vbulk11 on the first energy storage capacitor in PSU1 reaches the second energy storage capacitor through the first energy transmission path, the electric charges on the first energy storage capacitor and the second energy storage capacitor are concentrated on the second energy storage capacitor, and the concentrated voltage on the second energy storage capacitor (denoted as V total ) can be calculated by Equation (10).

[0119] Equation (10)

[0120] Therefore, during the process of the concentrated voltage V total decreasing to Vbulk22, the extended duration (denoted as Tholdup4) for which the redundant power supply system of the server can provide a normal power supply voltage to the server can be calculated by Equation (11).

[0121] Equation (11)

[0122] Since Vbulk1 is equal to Vbulk2 and Vbulk11 is equal to Vbulk22, Equation (11) can be converted into Equation (12).

[0123] Equation (12)

[0124] Therefore, the total extended duration (denoted as T5) for which the redundant power supply system of the server can provide a normal power supply voltage to the server can be calculated by Equation (13).

[0125] Equation (13)

[0126] Combining Equation (4), Equation (12), and Equation (13) can yield Equation (14).

[0127] Equation (14)

[0128] It is easy to understand that in the embodiments of the present application, through the redundant power supply system of the above server, the first switch and the third switch are implemented by using metal-oxide-semiconductor field-effect transistors, and the states of the first switch and the third switch can be adjusted quickly. The first boost circuit unit and the second boost circuit unit are implemented by using a Boost boost converter, and the boost process can be carried out quickly, improving the response speed of the redundant power supply system of the server.

[0129] Optionally, in the redundant power supply system of the above server, the first primary fault detection and control unit and the second primary fault detection and control unit are implemented by using a microcontroller unit; the first secondary fault detection and control unit and the second secondary fault detection and control unit are implemented by using a programmable logic device.

[0130] It is easy to understand that in the embodiments of the present application, through the redundant power supply system of the above server, the first primary fault detection and control unit and the second primary fault detection and control unit are implemented by using a microcontroller unit. The ability of the microcontroller unit to process data quickly can be utilized to monitor the first primary high-voltage input part of the slave power supply and the second primary high-voltage input part of the host power supply in real time, and to react quickly when a fault is detected, improving the response speed of the redundant power supply system of the server; the first secondary fault detection and control unit and the second secondary fault detection and control unit are implemented by using a programmable logic device (Complex Programmable Logic Device, abbreviated as CPLD). The programmability of the programmable logic device can be utilized to configure more flexibly according to the actual fault detection requirements, improving the flexibility of the redundant power supply system of the server.

[0131] In the method embodiments provided in the embodiments of the present application, they can also be executed in a server device or a similar computing device. Taking running on a server device as an example, Figure 11 is a hardware structure block diagram of a server device of an optional redundant power supply management method of the embodiments of the present application. As Figure 11 shown, the server device may include one or more ( Figure 11Only one processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data are shown. Among them, the above server device may further include a transmission device 106 for communication functions and an input / output device 108. Those of ordinary skill in the art can understand that Figure 11 The structure shown is only schematic and does not limit the structure of the above server device. For example, the server device may further include more or fewer components than Figure 11 shown therein, or have a different configuration from Figure 11 shown.

[0132] The memory 104 can be used to store computer programs. For example, software programs and modules of application software, such as the computer program corresponding to the redundant power management method of the server in the embodiments of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, implements the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some instances, the memory 104 may further include a memory remotely disposed relative to the processor 102, and these remote memories can be connected to the server device through a network. Examples of the above network include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0133] The transmission device 106 is used to receive or send data via a network. Specific examples of the above network may include a wireless network provided by the communication provider of the server device. In one instance, the transmission device 106 includes a network adapter (Network Interface Controller, abbreviated as NIC), which can be connected to other network devices through a base station and thus can communicate with the Internet. In one instance, the transmission device 106 may be a radio frequency (Radio Frequency, abbreviated as RF) module, which is used to communicate with the Internet wirelessly.

[0134] In the embodiments of the present application, a redundant power management method for a server is further provided, which is applied to the redundant power supply system in any one of the above, and the redundant power supply system includes a main power supply and a slave power supply. Figure 12 is a flowchart of a redundant power management method for a server according to an embodiment of the present application, as Figure 12 shown, and the method includes the following implementation steps:

[0135] Step S121: In response to an abnormal input power failure in the first primary high-voltage input section of the slave power supply corresponding to the server, control the slave power supply to actively shut down, activate the first boost circuit unit of the slave power supply to work, and send a first warning signal to the host power supply corresponding to the server. Whether there is an abnormal input power failure in the first primary high-voltage input section is detected and determined by the first primary fault detection and control unit of the slave power supply;

[0136] Step S122: In response to the host power supply receiving the first warning signal, the second primary fault detection and control unit of the host power supply activates the second combining circuit unit of the host power supply to work, so as to trigger the first energy storage capacitor of the slave power supply to transfer electric energy to the second energy storage capacitor of the host power supply, causing the second energy storage capacitor to boost.

[0137] Optionally, the redundant power supply management method of the above server may further include the following execution steps:

[0138] Step S123: In response to an abnormal input power failure in the second primary high-voltage input section of the host power supply, control the host power supply to actively shut down, activate the second boost circuit unit of the host power supply to work, and send a second warning signal to the slave power supply. Whether there is an abnormal input power failure in the second primary high-voltage input section is detected and determined by the second primary fault detection and control unit;

[0139] Step S124: In response to the slave power supply receiving the second warning signal, the first primary fault detection and control unit activates the first combining circuit unit of the slave power supply to work, so as to trigger the second energy storage capacitor to transfer electric energy to the first energy storage capacitor, causing the first energy storage capacitor to boost.

[0140] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases, the former is a better implementation method. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc), and includes several instructions for causing a terminal device (such as a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

[0141] In this embodiment, a redundant power supply server device is further provided. The device includes a server and the redundant power supply system of any one of the above. The redundant power supply system supplies power to the server through a power distribution board. The server includes a service board, a main control board, and a fan board.

[0142] The specific examples in this embodiment may refer to the examples described in the above embodiments and the exemplary embodiments, and will not be repeated here.

[0143] Obviously, those skilled in the art should understand that the various modules or steps of the present application described above can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. They can be implemented by program codes executable by the computing device. Thus, they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order than here, or they can be separately fabricated into individual integrated circuit modules, or multiple modules or steps among them can be fabricated into a single integrated circuit module to implement. In this way, the present application is not limited to any specific combination of hardware and software.

[0144] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the principle of the present application shall be included in the protection scope of the present application.

Claims

1. A redundant power supply system for a server, characterized in that: The redundant power supply system comprises a host power supply and a slave power supply, wherein: The slave power supply includes a first primary high-voltage input part, a first primary fault detection control unit, a first energy storage capacitor, a first combining circuit unit, a first boost circuit unit and a first secondary low-voltage output part, and the first secondary low-voltage output part is used to supply power to the server; The host power supply includes a second primary high-voltage input part, a second primary fault detection control unit, a second energy storage capacitor, a second combining circuit unit, a second boost circuit unit, a second secondary low-voltage output part and a second secondary fault detection control unit, and the second secondary low-voltage output part is used to supply power to the server; The first primary fault detection control unit is used to control the slave power supply to actively shut down, activate the first boost circuit unit to work, and send a first alarm signal to the host power supply when detecting that the first primary high-voltage input part has an input power failure abnormality; The second primary fault detection control unit is used to activate the second combining circuit unit to work when receiving the first alarm signal, so as to trigger the first energy storage capacitor to transfer electric energy to the second energy storage capacitor, so that the second energy storage capacitor is boosted; The second primary fault detection control unit is further used to control the host power supply to actively shut down, activate the second boost circuit unit to work, and send a second alarm signal to the slave power supply when detecting that the second primary high-voltage input part has an input power failure abnormality; The first primary fault detection control unit is further used to activate the first combining circuit unit to operate when receiving the second alarm signal, so as to trigger the second energy storage capacitor to transfer electric energy to the first energy storage capacitor, so that the first energy storage capacitor is boosted.

2. The redundant power supply system for a server according to claim 1, characterized in that: The server load power consumption corresponding to the slave power supply is the same as that of the host power supply.

3. The redundant power supply system for a server according to claim 1, characterized in that: The input power failure anomaly is that the high-voltage DC bus voltage decreases from the operating voltage value to the target value, and the target value is determined by the power shutdown protection voltage and the preset fault protection threshold.

4. The redundant power supply system for a server according to claim 1, characterized in that: The first primary fault detection control unit is further used to activate the first combining circuit unit to work and send a first combining signal to the host power supply when the slave power supply is powered off and shut down; The second primary fault detection control unit is further used to activate the second combining circuit unit to work when receiving the first combining signal, so that the second energy storage capacitor is connected in parallel with the first energy storage capacitor, and the second energy storage capacitor and the first energy storage capacitor simultaneously supply power to the second secondary low-voltage output part; The second primary fault detection control unit is further used to activate the second combining circuit unit to work and send a second combining signal to the slave power supply when the host power supply is powered off and shut down; The first primary fault detection control unit is also used to activate the first combining circuit unit to work when receiving the second combining signal, so that the first energy storage capacitor is connected in parallel with the second energy storage capacitor, and the first energy storage capacitor and the second energy storage capacitor simultaneously power the first secondary low-voltage output part.

5. The redundant power supply system for a server according to claim 1, characterized in that: The slave power supply further comprises a first secondary fault detection control unit, the first secondary fault detection control unit being used to perform output abnormality detection on the first secondary low-voltage output part; The host power supply further includes a second secondary fault detection control unit, the second secondary fault detection control unit being used to perform output abnormality detection on the second secondary low-voltage output part; The first secondary fault detection control unit is further used to activate the first combining circuit unit to work and send a third combining signal to the host power supply when there is no input abnormality in the first primary high-voltage input part and an output abnormality is detected in the first secondary low-voltage output part; The second secondary fault detection control unit is further used to activate the second combining circuit unit to work when receiving the third combining signal, so that the first primary high-voltage input part and the second primary high-voltage input part simultaneously supply power to the second secondary low-voltage output part; The second secondary fault detection control unit is further used to activate the second combining circuit unit to work and send a fourth combining signal to the slave power supply when there is no input abnormality in the second primary high-voltage input part and an output abnormality is detected in the second secondary low-voltage output part; The first secondary fault detection control unit is further used to activate the first combining circuit unit to operate when receiving the fourth combining signal, so that the first primary high-voltage input part and the second primary high-voltage input part simultaneously supply power to the first secondary low-voltage output part.

6. The redundant power supply system for a server according to claim 1, characterized in that: The first primary fault detection control unit is further configured to activate the first combining circuit unit to work and send a fifth combining signal to the host power supply when the first secondary low-voltage output part has no output abnormality and the first primary high-voltage input part has input abnormality; The second primary fault detection control unit is further used to activate the second combining circuit unit to operate when receiving the fifth combining signal, so that the second primary high-voltage input part supplies power to the first secondary low-voltage output part and the second secondary low-voltage output part.

7. The redundant power supply system for a server according to claim 1, characterized in that: The second primary fault detection control unit is further used to activate the second combining circuit unit to work and send a sixth combining signal to the slave power supply when there is no output abnormality in the second secondary low-voltage output part and an input abnormality is detected in the second primary high-voltage input part; The first primary fault detection control unit is further used to activate the first combining circuit unit to operate when receiving the sixth combining signal, so that the first primary high-voltage input part supplies power to the first secondary low-voltage output part and the second secondary low-voltage output part.

8. The redundant power supply system for a server according to claim 1, characterized in that: The first combining circuit unit is connected to the first energy storage capacitor, and the first combining circuit unit includes a first switch; The first boost circuit unit is connected to the first energy storage capacitor, and the first boost circuit unit includes a second switch, a first inductor, a first diode and a first transistor; The second combining circuit unit is connected to the second energy storage capacitor, and the second combining circuit unit includes a third switch; The second boost circuit unit is connected to the second energy storage capacitor, and the second boost circuit unit includes a fourth switch, a second inductor, a second diode and a second transistor; The first combining circuit unit is connected to the second combining circuit unit, and the first combining circuit unit is connected to the second boosting circuit unit; The first boost circuit unit is connected to the second boost circuit unit, and the first boost circuit unit is connected to the second combiner circuit unit.

9. The redundant power supply system for a server according to claim 8, characterized in that: When the first combining circuit unit is activated to work, the first switch is switched from an open state to a closed state; When the first boost circuit unit is activated to work, the second switch is switched from an open state to a closed state; When the second combining circuit unit is activated to work, the third switch is switched from an open state to a closed state; When the second boost circuit unit is activated to work, the fourth switch is switched from an open state to a closed state.

10. The redundant power supply system for a server according to claim 8, characterized in that: The first switch and the third switch are implemented by metal oxide semiconductor field effect transistors; The first boost circuit unit and the second boost circuit unit are implemented by using a Boost converter.

11. The redundant power supply system for a server according to claim 5, characterized in that: The first primary fault detection control unit and the second primary fault detection control unit are implemented by a microcontroller unit; The first secondary fault detection control unit and the second secondary fault detection control unit are implemented using programmable logic devices.

12. A redundant power management method for a server, characterized in that: The redundant power supply system applied to any one of claims 1 to 9, wherein the redundant power supply system comprises a host power supply and a slave power supply, and the redundant power supply management method comprises: In response to an input power failure abnormality in a first primary high-voltage input part of a slave power supply corresponding to the server, the slave power supply is controlled to be actively shut down, a first boost circuit unit of the slave power supply is activated to work, and a first alarm signal is sent to a host power supply corresponding to the server, wherein whether the first primary high-voltage input part has an input power failure abnormality is detected and determined by a first primary fault detection and control unit of the slave power supply; In response to the host power supply receiving the first alarm signal, the second primary fault detection control unit of the host power supply activates the second combining circuit unit of the host power supply to operate, so as to trigger the first energy storage capacitor of the slave power supply to transfer electric energy to the second energy storage capacitor of the host power supply, so that the second energy storage capacitor is boosted; In response to an input power-off anomaly in the second primary high-voltage input part of the host power supply, the host power supply is controlled to be actively shut down, the second boost circuit unit of the host power supply is activated to work, and a second alarm signal is sent to the slave power supply, wherein whether the second primary high-voltage input part has an input power-off anomaly is detected and determined by the second primary fault detection control unit; In response to the slave power supply receiving the second alarm signal, the first primary fault detection and control unit activates the first combining circuit unit of the slave power supply to trigger the second energy storage capacitor to transfer electrical energy to the first energy storage capacitor, so that the first energy storage capacitor is boosted.

13. A redundant power supply server device, characterized in that: It comprises a server and the redundant power supply system of any one of claims 1 to 8, wherein the redundant power supply system supplies power to the server through a power distribution board, and the server comprises a service board, a main control board and a fan board.

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