Redundant power supply system, method and device of server

Abstract

The embodiment of the invention provides a redundant power supply system, method and device of a server. The system comprises a host power supply and a slave power supply, and a first primary fault detection control unit is used for controlling the slave power supply to be actively shut down, activating a first booster circuit unit to work and sending a first alarm signal to the host power supply when it is detected that an input power failure abnormity exists in a first primary high-voltage input part; and the second primary fault detection control unit is used for activating the second combining circuit unit to work when receiving the first alarm 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 is boosted. The technical problems of low stability, low reliability and short power supply duration of a redundant power supply scheme of a server in related technologies are solved, and the effects of improving the stability, the reliability and the power supply duration of the redundant power supply scheme of the server are further achieved.

Description

Technical Field

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

[0002] The server power supply unit (PSU) is a device used to stably supply power to the server, which 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 the related art, the server power supply module usually adopts a server redundant power supply solution that combines the configuration of a common power supply module and a redundant power supply module. When there is a failed power supply module in the common power supply module, 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 size of the capacitor inside the power module, when the power module loses power abnormally, the solution adopted in the related art that uses a redundant power module to replace the failed module for power supply is short-lived, which may cause problems such as server data loss, system crash, and equipment damage. The server redundant power supply solution has a short normal power supply duration, low stability, and low reliability. On the other hand, in the related art, when multiple ordinary power modules are abnormal, the server can only rely on the redundant power module to power the server, and the power supply is unstable, resulting in low stability and low reliability of the server redundant power supply solution.

[0004] To address the above-mentioned 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 to at least solve the technical problems of low stability, low reliability and short power supply duration of redundant power supply solutions for servers in the related art.

[0006] According to one aspect of an embodiment of the present application, a redundant power supply system for a server is provided, the system comprising a host power supply and a slave power supply, wherein the slave power supply comprises 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 being used to supply power to the server; the host power supply comprises 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 and a second secondary low-voltage output part and a second secondary fault detection and control unit, the second secondary low-voltage output part being used to supply power to the server; the first primary fault detection and 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 an input power-off anomaly is detected 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 is boosted.

[0007] Optionally, the second primary fault detection and control unit is also used to control the host power supply to actively shut down, activate the second boost circuit unit, and send a second alarm signal to the slave power supply when an input power-off abnormality is detected in the second primary high-voltage input part; the first primary fault detection and control unit is also used to activate the first combining circuit unit when receiving the second alarm signal, so as 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.

[0008] Optionally, the server load power consumption corresponding to the slave power supply and the host power supply is the same.

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

[0010] Optionally, the first primary fault detection and control unit is also 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 and control unit is also used to activate the second combining circuit unit to work when the first combining signal is received, 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 power the second secondary low-voltage output part; the second primary fault detection and control unit is also 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 and control unit is also used to activate the first combining circuit unit to work when the second combining signal is received, 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.

[0011] Optionally, the slave power supply also includes a first secondary fault detection control unit, which is used to detect output abnormality of the first secondary low-voltage output part; the host power supply also includes a second secondary fault detection control unit, which is used to detect output abnormality of the second secondary low-voltage output part; the first secondary fault detection control unit is also used to activate the first combining circuit unit to work when there is no input abnormality in the first primary high-voltage input part and the output abnormality of the first secondary low-voltage output part is detected, and send a third combining signal to the host power supply; the second secondary fault detection control unit is also 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 power the second secondary low-voltage output part; the second secondary fault detection control unit is also used to activate the second combining circuit unit to work when there is no input abnormality in the second primary high-voltage input part and the output abnormality of the second secondary low-voltage output part is detected, and send a fourth combining signal to the slave power supply; the first secondary fault detection control unit is also used 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 simultaneously power the first secondary low-voltage output part.

[0012] Optionally, the first primary fault detection and control unit is also used to activate the first combining circuit unit 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 also used to activate the second combining circuit unit 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 also used to activate the second combining circuit unit to operate 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 also used to activate the first combining circuit unit to operate when the sixth combining signal is received, 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, the first switch is switched from an open state to a closed state; when the first boost circuit unit is activated, the second switch is switched from an open state to a closed state; when the second combining circuit unit is activated, the third switch is switched from an open state to a closed state; when the second boost circuit unit is activated, the fourth switch is switched from an open state to a closed 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 converters.

[0017] According to another aspect of the present application, a redundant power supply management method for a server is provided, which is applied to any of the redundant power supply systems mentioned above, the redundant power supply system comprising a host power supply and a slave power supply, the redundant power supply management method comprising: in response to an input power-off anomaly in a first primary high-voltage input part of a slave power supply corresponding to the server, controlling the slave power supply to actively shut down, activating a first boost circuit unit of the slave power supply to work, and sending a first alarm signal to the host power supply corresponding to the server, wherein whether there is an input power-off anomaly in the first primary high-voltage input part 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, a second primary fault detection and control unit of the host power supply activates a 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, so as to boost the voltage of the second energy storage capacitor.

[0018] Optionally, the redundant power supply management method also includes: in response to an input power-off anomaly in the second primary high-voltage input part of the host power supply, controlling the host power supply to actively shut down, activating the second boost circuit unit of the host power supply, and sending a second alarm signal to the slave power supply, wherein whether there is an input power-off 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 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.

[0019] According to another aspect of an embodiment of the present application, a redundant power supply device for a server is also provided, comprising: a server and any one of the redundant power supply systems mentioned above, the redundant power supply system supplies power to the server through a power distribution board, and the server comprises a business board, a main control board and a fan board.

[0020] In the embodiment of the present application, by using the first primary fault detection control unit and the second primary detection control unit, the abnormal input power failure can be detected in time, and further, by using the introduced first combining circuit unit, the first boosting circuit unit, the second combining circuit unit and the second boosting circuit unit, the first energy storage capacitor transmits electric energy to the second energy storage capacitor, thereby increasing the voltage of the second energy storage capacitor. Thus, the present application achieves the purpose of using the first primary fault detection control unit, the first combining circuit unit, the first boosting circuit unit, the second primary fault detection control unit, the second combining circuit unit and the second boosting circuit unit to supply power to the server more permanently and stably, thereby achieving the technical effect of improving the stability, reliability and power supply duration of the redundant power supply scheme of the server, thereby solving the technical problems of low stability, low reliability and short power supply duration of the redundant power supply scheme of the server in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0024] Figure 4 is a flow chart of an optional redundant power supply system processing a first abnormal situation according to an embodiment of the present application;

[0025] Figure 5 is a flow chart of an optional redundant power supply system processing a 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 is a schematic diagram of an optional redundant power supply system of a server in a second abnormal situation according to an embodiment of the present application;

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

[0029] Fig. 9 is a flow chart of an optional redundant power supply system processing a third abnormal situation according to an embodiment of the present application;

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

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

[0032] Fig.12 It is a flowchart of a redundant power management method for a server according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

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

[0035] In the operating environment of this embodiment, the embodiment of the present application provides the following Figure 1 The redundant power supply system of the server shown, Figure 1 is a structural block diagram of a redundant power supply system for a server according to an embodiment of the present application, such as Figure 1 As shown, the redundant power supply system includes 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 and 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 it is detected that there is an input power-off abnormality in the first primary high-voltage input part; 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.

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

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

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

[0039] The second primary high-voltage input part may include an input EMI filter rectifier circuit unit and a PFC phase correction boost circuit unit. The second low-voltage output part may include a DC-DC isolation buck circuit unit, a synchronous rectifier single-channel unit and an Oring isolation output circuit unit. The second energy storage capacitor may be used to store charge. The first alarm signal may be used to activate the second combining circuit unit to work when there is an input power-off abnormality in the first primary high-voltage input part.

[0040] The specific implementation method of using the first primary fault detection and control unit to detect the input power-off abnormality of the first primary high-voltage input part, controlling the slave power supply to actively shut down, activating the first boost circuit unit, and sending a first alarm signal to the host power supply can be: using the first primary fault detection and control unit of the slave power supply 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 the primary high-voltage input part of the slave power supply has an input power-off abnormality, the first primary fault detection and control unit sends a first shutdown signal to the slave power supply, controls the slave power supply to actively shut down, so that the slave power supply and the server are disconnected, and further, activates the first boost circuit unit so that the first boost circuit unit is in a working state, and sends a first alarm signal 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 of using the second primary fault detection control unit 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 may be: when the second primary fault detection control unit receives the first alarm signal sent by the first primary fault detection control unit, the second boost circuit unit is activated so that the second boost circuit unit is in a working state, and a first energy transmission path from the first energy storage capacitor to the second energy storage capacitor is established, so that the first energy storage capacitor transmits electric energy to the second energy storage capacitor through the first energy transmission path, thereby boosting the second energy storage capacitor.

[0043] It is easy to understand that through the redundant power supply system of the above-mentioned server, on the one hand, in the embodiment of the present application, by utilizing the first primary fault detection control unit and the second primary detection control unit, it is possible to timely detect the presence of an input power-off abnormality in the first primary high-voltage input part of the slave power supply, thereby improving the response speed of the server redundant power supply system; on the other hand, in the embodiment of the present application, by utilizing the first boost circuit unit and the second combining circuit unit, the first energy storage capacitor transmits electrical energy to the second energy storage capacitor, thereby increasing the voltage of the second energy storage capacitor. In the event of an input power-off abnormality in the first primary high-voltage input part, the server redundant power supply system can supply power to the server more permanently and stably, thereby improving the stability, reliability and power supply duration of the server redundant power supply solution.

[0044] The redundant power supply system of the above-mentioned server in the embodiment of the present application is further introduced below.

[0045] Optionally, in the redundant power supply system of the above-mentioned server, the second primary fault detection and control unit is also used to control the host power supply to actively shut down, activate the second boost circuit unit, and send a second alarm signal to the slave power supply when an input power-off abnormality is detected in the second primary high-voltage input part; the first primary fault detection and control unit is also used to activate the first combining circuit unit when receiving the second alarm signal, so as to trigger the second energy storage capacitor to transfer electrical energy to the first energy storage capacitor, so as to boost the voltage of the first energy storage capacitor.

[0046] The second alarm signal can be used to activate the first combining circuit unit to operate when an input power-off abnormality occurs in the second primary high-voltage input part.

[0047] It is easy to understand that through the redundant power supply system of the above-mentioned server, on the one hand, in the embodiment of the present application, by using the first primary fault detection control unit and the second primary detection control unit, it is possible to promptly detect the presence of an input power-off abnormality in the second primary high-voltage input part of the host power supply, thereby quickly taking measures for the host power supply and the slave power supply, thereby improving the response speed of the server redundant power supply system; on the other hand, in the embodiment of the present application, by using the first combining circuit unit and the second boosting circuit unit, the second energy storage capacitor transmits electrical energy to the first energy storage capacitor, thereby increasing the voltage of the first energy storage capacitor. When there is an input power-off abnormality in the second primary high-voltage input part, the server redundant power supply system can supply power to the server more permanently and stably, thereby 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 server load power consumption corresponding to the slave power supply and the host power supply is the same.

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

[0050] In an exemplary application scenario, Figure 1 As shown, the redundant power supply system includes a host power supply (denoted as PSU2) and a slave power supply (denoted as PSU1). When both PSU1 and PSU2 are in normal working state, PSU1 and PSU2 work in a current-sharing mode, 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-mentioned server, in the embodiment of the present application, the host 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 power overload or insufficient power load of the host power supply / slave power supply, more reasonably allocate energy resources, avoid unnecessary energy waste, and extend the use efficiency and service life of the host 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-mentioned server, the input power failure anomaly is that the high-voltage DC bus voltage decreases from an operating voltage value to a target value, and the target value is determined by the power shutdown protection voltage and a preset fault protection threshold.

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

[0054] The above-mentioned working voltage value may be the DC voltage on the second energy storage capacitor when the host power supply is in 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 normal working state.

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

[0056] The above-mentioned power shutdown protection voltage can be used to trigger the host power supply / slave power supply to automatically shut down. The power shutdown protection voltage can be set according to actual conditions. When the high-voltage DC bus voltage is lower than the power shutdown protection voltage, the host power supply / slave power supply automatically shuts down to avoid damage to the host power supply / slave power supply.

[0057] The above-mentioned preset fault protection threshold may be a voltage value set according to actual conditions.

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

[0059] In an exemplary application scenario, Figure 1 As shown, the server may include a service board load, a main control board load and a fan board load, and the service board load, the main control board load and the fan board load may constitute a load system corresponding to the server. The 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 may be connected through a fifth switch (denoted as S3), the second energy storage capacitor C2 and the second secondary low-voltage output part may be connected through a sixth switch (denoted as S4), the first energy storage capacitor C1 and the first primary high-voltage input part may be connected through a seventh switch (denoted as S5), and the second energy storage capacitor C2 and the second primary high-voltage input part may be connected through an eighth switch (denoted as S6). PSU1 and PSU2 are powered by inputting 220Vac AC power 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, Figure 1As shown, a functional circuit is added at the first energy storage capacitor and the second energy storage capacitor, and 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. The voltage value output by the first secondary low-voltage output part is recorded as Vout1, and the voltage value output by the second secondary low-voltage output part is recorded as Vout2. The high-voltage DC bus integrates Vout1 and Vout2 into Vout and transmits it to the server. The working voltage value corresponding to PSU1 is recorded as Vbulk1, and the working voltage value corresponding to PSU2 is recorded as Vbulk2. The power shutdown protection voltage corresponding to PSU1 is recorded as Vbulk11, and the power shutdown protection voltage corresponding to PSU2 is recorded as Vbulk22. The preset fault protection threshold is set according to the actual situation (e.g., 30V, 50V) and recorded as K. The high-voltage DC bus voltage target value corresponding to PSU1 is Vbulk11+K, and the high-voltage DC bus voltage target value corresponding to PSU2 is Vbulk22+K. When the high-voltage DC bus voltage does not decrease from the operating voltage value to the target value, PSU1 and PSU2 can still provide power support for the server normally.

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

[0062] Still in the above application scenario, Figure 3 is a schematic diagram of an optional redundant power supply system in a first abnormal situation according to an embodiment of the present application, that is, Figure 3 yes Figure 1A simplified diagram of the redundant power supply system of a server is shown in a first abnormal situation. Figure 4 is a flow chart of an optional redundant power supply system processing a first abnormal situation according to an embodiment of the present application, such as Figure 4 As shown, when the first primary fault detection and control unit detects that there is an input power-off abnormality in the first primary high-voltage input part (that is, 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 alarm signal to PSU2; after receiving the first alarm 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, which prolongs the time for PSU2 to decrease from Vbulk2 to Vbulk22, and improves the power-off retention time of PSU2.

[0063] It is easy to understand that through the redundant power supply system of the above-mentioned 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 in the event of an input power failure abnormality in the host power supply / slave power supply can be effectively improved, the power-off retention 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-mentioned server, the first primary fault detection and control unit is also 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 and control unit is also 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 power the second secondary low-voltage output part; the second primary fault detection and control unit is also 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 and 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.

[0065] The first combined signal can be used to activate the second combined circuit unit when the slave power is powered off and shut down. The second combined signal can be used to activate the first combined circuit unit when the host power is powered off and shut down.

[0066] When the slave power supply is powered off and shut down, the specific implementation method of activating the first combining unit to work and activating the second combining circuit unit to work may be: the first primary fault detection and control unit in the slave power supply detects the state of the slave power supply in real time, and when the first primary fault detection and control unit detects that the slave power supply is in the power-off and shut-down state, the first primary fault detection and control unit activates the first combining circuit unit, so that the first combining circuit unit is in a working state, and sends 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, the second combining circuit unit is activated, so that the second combining circuit unit is in a working state, and a second energy transmission path is established between the second energy storage capacitor and the first energy storage capacitor, 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.

[0067] Similarly, a specific implementation method for activating the first combining unit to work and activating the second combining circuit unit to work when the host power is turned off can be determined.

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

[0069] Still in the above application scenario, the situation where PSU2 is in a power-off state is recorded as the fourth abnormal situation. Figure 5 is a flow chart of an optional redundant power supply system processing a fourth abnormal situation according to an embodiment of the present application, such as Figure 5 As shown, when the second primary fault detection and control unit in PSU2 detects that PSU2 is in a power-off shutdown state, the second primary fault detection and control unit activates the second combining circuit unit, so that the second combining circuit unit is in a working state, and sends 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, so that the first combining circuit unit is in a working state, and establishes a second energy transmission path between the first energy storage capacitor and the second energy storage capacitor, 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 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 formula (1).

[0070] Formula (1)

[0071] Figure 6 It is a structural block diagram of a server redundant power supply system according to the prior art. If the server redundant power supply solution in the related art is adopted, such as Figure 6 As shown, when PSU2 is in a power-off state, only the first energy storage capacitor can be used to power the first secondary low-voltage output part. The length of time (denoted as Tholdup1) that a server redundant power supply solution configured with only a redundant power supply module 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 time (denoted as Tholdup2) that the redundant power supply system of the server can provide the 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 time that the redundant power supply system of the server provides normal power supply voltage to the server, avoiding the problem of shortening the time that the redundant power supply system of the server can provide normal power supply voltage when the host power supply or the slave power supply is in a power-off state, and improving the reliability and stability of the server system.

[0076] It is easy to understand that, through the redundant power supply system of the above-mentioned server, in the embodiment of the present application, the first energy storage capacitor and the second energy storage capacitor can be connected in parallel by using the first combining unit and the second combining circuit, so that when the slave power supply or the host power supply is in a power-off shutdown state, the energy stored in the first energy storage capacitor or the second energy storage capacitor can still be fully utilized, and the redundant power supply system of the server can provide the server with a normal power supply voltage for a longer time, 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, the redundant power supply system of the server in the embodiment of the present application can provide the server with a normal power supply voltage for a longer time when the slave power supply or the host power supply is in a power-off shutdown state, and 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-mentioned server, the slave power supply also includes a first secondary fault detection control unit, which is used to detect output abnormality of the first secondary low-voltage output part; the host power supply also includes a second secondary fault detection control unit, which is used to detect output abnormality of the second secondary low-voltage output part; the first secondary fault detection control unit is also 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 also 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 also used to When the third combining signal is received, the second combining circuit unit is activated to operate, 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 and control unit is also used to activate the second combining circuit unit 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 and control unit is also used to activate the first combining circuit unit when the fourth combining signal is received, 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.

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

[0079] When there is no input abnormality in the first primary high-voltage input part and there is an output abnormality in the first secondary low-voltage output part, the specific implementation method of activating the first combining circuit unit and activating the second combining circuit unit may be: the first secondary fault detection control unit in the slave power supply detects the output of the first secondary low-voltage output part in real time, and when there is no input abnormality in the first primary high-voltage input part and it is detected that there is an output abnormality in the first secondary low-voltage output part, the first secondary fault detection control unit activates the first combining circuit unit, puts the first combining circuit unit in a working state, and sends a third combining signal to the host power supply; further, when the second secondary fault detection control unit of the host power supply receives the third combining signal, it activates the second combining circuit unit, puts the second combining circuit unit in a working state, 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.

[0080] Similarly, the specific implementation method of activating the first combining circuit unit and activating the second combining circuit unit when there is no input abnormality in the second primary high-voltage input part and there is an output abnormality in the second secondary low-voltage output part can be determined.

[0081] In an exemplary application scenario, the situation in which the second secondary fault detection and control unit of PSU2 detects that there is an output abnormality in the second secondary low-voltage output part, and the second primary fault detection and control unit does not detect that there is an input abnormality in the second primary high-voltage input part is recorded as the second abnormal situation. Figure 7 is a schematic diagram of an optional redundant power supply system of a server in a second abnormal situation according to an embodiment of the present application, that is, Figure 7 yes Figure 1 A simplified diagram of the redundant power supply system of the server shown in the second abnormal situation, as shown in FIG. Figure 7 As shown, when the second secondary fault detection control unit of PSU2 detects that the second secondary low-voltage output part has an output abnormality, and the second primary fault detection control unit does not detect that the second primary high-voltage input part has an input abnormality, the second secondary fault detection control unit activates the second combining circuit unit to put 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 control unit of the host power supply receives the fourth combining signal, it activates the first combining circuit unit to put the first combining circuit unit in a working state, 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. Since the second primary high-voltage input part does not have an input abnormality and the second secondary low-voltage output part has an output abnormality, the second primary high-voltage input part of PSU2 is still in a normal working state. 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 part of PSU2 can be fully utilized to increase the voltage value (recorded as Vbulk3) corresponding to the first secondary low-voltage output part of PSU1.

[0082] In contrast, if the solution of only configuring redundant power modules in the related technology is adopted, Figure 6 As shown, if there is an output abnormality in the second secondary low-voltage output part of PSU2, only PSU1 can be used to power the server. If PSU1 also has an output abnormality, it will cause the server to crash. The stability and reliability of the server redundant power supply solution in the related technology are low.

[0083] It is easy to understand that, through the redundant power supply system of the above-mentioned server, in the embodiment 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 more fully utilized, and the redundant power supply system of the server can provide the server with a normal power supply voltage for a longer period of time, 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, the redundant power supply system of the server in the embodiment of the present application can provide the server with a normal power supply voltage for a longer period of time when only the first secondary low-voltage output part has an output abnormality or only the second secondary low-voltage output part has an output abnormality, and the redundant power supply system of the server has higher stability and higher reliability.

[0084] Optionally, in the redundant power supply system of the above-mentioned server, the first primary fault detection and control unit is also used to activate the first combining circuit unit to operate 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 also used to activate the second combining circuit unit to operate when the fifth combining signal is received, 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 fifth combining signal may be used to activate the second combining circuit unit to operate when there is no output abnormality in the first secondary low-voltage output part and there is an input abnormality in the first primary high-voltage input part.

[0086] When there is no output abnormality in the first secondary low-voltage output part and there is an input abnormality in the first primary high-voltage input part, the specific implementation method of activating the first combining circuit unit and activating the second combining circuit unit may be: the first primary fault detection control unit in the slave power supply detects the input of the first primary high-voltage input part in real time, and when there is no output abnormality in the first secondary low-voltage output part and it is detected that there is an output abnormality in the first primary high-voltage input part, the first primary fault detection control unit activates the first combining circuit unit, puts 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 control unit of the host power supply receives the fifth combining signal, it activates the second combining circuit unit, puts 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-mentioned server, in the embodiment of the present application, by using the first combining unit and the second combining circuit, it is possible to use the second primary high-voltage input part to simultaneously supply power to the first secondary low-voltage output part and the second secondary low-voltage output part when only the first primary high-voltage input part has an input abnormality, thereby avoiding the problem of server system interruption due to 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-mentioned server, the second primary fault detection and control unit is also used to activate the second combining circuit unit to operate 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 also used to activate the first combining circuit unit to operate when the sixth combining signal is received, 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 sixth combining signal can be used to activate the first combining circuit unit to operate 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] 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, the specific implementation method of activating the first combining circuit unit and activating the second combining circuit unit may be: the second primary fault detection control unit in the host power supply detects the input of the second primary high-voltage input part in real time, and when there is no output abnormality in the second secondary low-voltage output part and an output abnormality is detected in the second primary high-voltage input part, the second primary fault detection control unit activates the second combining circuit unit, puts 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 control unit of the slave power supply receives the sixth combining signal, the first combining circuit unit is activated, puts the first combining circuit unit in a working state, and enables the first primary high-voltage input part to supply 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 in which the second primary fault detection control unit of PSU2 detects an input abnormality in the second primary high-voltage input part and the second secondary fault detection 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 is a schematic diagram of an optional redundant power supply system of a server in a third abnormal situation according to an embodiment of the present application, that is, Figure 8 yes Figure 1A simplified diagram of the redundant power supply system of the server shown in the third abnormal situation, Fig. 9 is a flow chart of an optional redundant power supply system processing a third abnormal situation according to an embodiment of the present application, such as Fig. 9 As shown, when the second primary fault detection control unit of PSU2 detects that the second primary high-voltage input part has an input abnormality and the second secondary fault detection control unit does not detect that the second secondary low-voltage output part has an output abnormality, the second primary fault detection control unit activates the second combining circuit unit, so that the second combining circuit unit is in a working state, and sends a sixth combining signal to the host power supply; further, when the first secondary fault detection control unit of the slave power supply receives the sixth combining signal, the first combining circuit unit is activated, so that the first combining circuit unit is 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 at the same time. Since the second secondary low-voltage output part in PSU2 can still operate normally when the second primary fault detection control unit of PSU2 detects that the second primary high-voltage input part has an input abnormality and the second secondary fault detection control unit does not detect that the second secondary low-voltage output part has an output abnormality, the second secondary low-voltage output part in PSU2 can still operate normally, so the voltage value corresponding to the first primary high-voltage input part of PSU1 (recorded as Vbulk4) is used to enable the second secondary low-voltage output part of PSU2 to continue to operate, thereby ensuring the stability of server operation.

[0092] It is easy to understand that through the redundant power supply system of the above-mentioned server, in the embodiment of the present application, by using the first combining unit and the second combining circuit, it is possible to use the second primary high-voltage input part to simultaneously supply power to the first secondary low-voltage output part and the second secondary low-voltage output part when only the first primary high-voltage input part has an input abnormality, thereby avoiding the problem of server system interruption due to 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.

[0093] Optionally, in the redundant power supply system of the above-mentioned 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, Figure 2 As shown, the circuit diagram includes a first combining circuit unit (i.e., PSU1 combining unit), a second combining circuit unit (i.e., PSU2 combining unit), a first boost circuit unit (i.e., PSU1 boost circuit unit), and a second boost circuit unit (i.e., PSU2 boost circuit unit). Among them, the PSU1 combining circuit unit is connected to the first energy storage capacitor (denoted as C1), and the PSU1 combining circuit unit includes a first switch (denoted as S11); the PSU1 boost circuit unit is connected to C1, and the PSU1 boost 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 boost circuit unit is connected to C2, and the second boost 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 boost circuit unit; the PSU1 boost circuit unit is connected to the PSU2 boost circuit unit, and the PSU1 boost 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-mentioned server, in the embodiment of the present application, by utilizing the constructed first combining circuit unit, first boosting circuit unit, second combining circuit unit and second boosting circuit unit, in the event of a failure in the slave power supply or the host power supply, the energy resources of the slave power supply or the host power supply can be more flexibly allocated and the energy resources of the slave power supply or the host power supply can be more fully utilized, thereby 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-mentioned server, when the first combining circuit unit is activated, the first switch is switched from an open state to a closed state; when the first boost circuit unit is activated, the second switch is switched from an open state to a closed state; when the second combining circuit unit is activated, the third switch is switched from an open state to a closed state; when the second boost circuit unit is activated, the fourth switch is switched from an open state to a closed state.

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

[0098] Fig.10 is a schematic diagram of an equivalent circuit of an optional functional circuit according to an embodiment of the present application, that is, Fig.10 yes Figure 2 The equivalent circuit diagram is as follows: Fig.10 As 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 actively shut down, controls S1 to close, activates the first boost circuit unit to work, and sends a first alarm signal to PSU2; after PSU2 receives the first alarm signal, it controls S22 to close, 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.

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

[0100] Still in the above application scenarios, Figure 2As shown, when the second primary fault detection 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 control unit does not detect that there is an output abnormality in the second secondary low-voltage output part, the second primary fault detection control unit controls the closing of S22, activates the second combining circuit unit, and sends the sixth combining signal to the host power supply; further, when the first secondary fault detection control unit of the slave power supply receives the sixth combining signal, it controls the closing of S11, activates the first combining circuit unit, so that the first primary high-voltage input part simultaneously supplies power to the first secondary low-voltage output part and the second secondary low-voltage output part.

[0101] It is easy to understand that through the redundant power supply system of the above-mentioned server, in the embodiment of the present application, by utilizing 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, it is possible to effectively take corresponding measures when the host power supply or the slave power supply fails, so as to more stably supply power to the server system, thereby 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; and the first boost circuit unit and the second boost circuit unit are implemented by Boost converters.

[0103] It should be noted that the first switch and the third switch mentioned above can also be implemented by power semiconductor devices (Insulated Gate Bipolar Transistor, abbreviated as IGBT). By utilizing IGBT, it is possible to have lower conduction losses and higher switching speeds in high-voltage and high-current applications, thereby improving the power utilization of the slave power supply / host power supply and improving the response speed of the server's redundant power supply system.

[0104] In an exemplary application scenario, Fig.10 As shown, when PSU1 and PSU2 are both in normal working state, PSU1 and PSU2 work in current sharing mode, and the capacitance value C corresponding to the first energy storage capacitor v1 The capacitance value C corresponding to the second energy storage capacitor v1The 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 PSU1 boost circuit unit is implemented by a Boost boost converter, and the charge on the first energy storage capacitor is recorded as Q1, the charge on the second energy storage capacitor is recorded as Q2, and the sum of the charge on the first energy storage capacitor and the charge on the second energy storage capacitor is recorded as the total charge 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 transmission path, so that the voltage Vbulk22 on the second energy storage capacitor of PSU2 is boosted, and the voltage on the second energy storage capacitor is maintained above Vbulk22, thereby extending the time it takes for PSU2 to decrease from Vbulk2 to Vbulk22 and improving the power-off retention time of PSU2.

[0106] Assuming that the boost loss of Q1 and Q2 during the voltage charging and boosting process on the second energy storage capacitor is ignored, Q total The voltage on the second energy storage capacitor remains unchanged during the charging and boosting process. The extended time (denoted as Tholdup3) during which the high-voltage DC bus voltage corresponding to PSU1 decreases from Vbulk1 to Vbulk11, during which the redundant power supply system of the server can provide the server with a normal power supply voltage, can be calculated by formula (4).

[0107] Formula (4)

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

[0109] Formula (5)

[0110] Since both PSU1 and PSU2 are in normal working state, PSU1 and PSU2 work in current sharing mode. At this time, the voltage on the first energy storage capacitor is Vbulk22, and Q2 can be calculated by formula (6).

[0111] Formula (6)

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

[0113] Formula (7)

[0114] Since PSU1 and PSU2 are both in normal working state, PSU1 and PSU2 work in current sharing mode, Q2 is equal to Q1, so equation (7) can be converted into equation (8).

[0115] Formula (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, and controls PSU1 to actively shut down. 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 formula (9).

[0117] Formula (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 charge on the first energy storage capacitor and the charge on the second energy storage capacitor are both 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 formula (10).

[0119] Formula (10)

[0120] Therefore, the concentrated voltage V on the second energy storage capacitor total In the process of reducing to Vbulk22, the extended time (denoted as Tholdup4) that the server's redundant power supply system can provide the server with normal power supply voltage can be calculated by formula (11).

[0121] Formula (11)

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

[0123] Formula (12)

[0124] Therefore, the total extended time (denoted as T5) that the redundant power supply system of the server can provide normal power supply voltage to the server can be calculated by formula (13).

[0125] Formula (13)

[0126] Combining equation (4), equation (12) and equation (13) we can get equation (14).

[0127] Formula (14)

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

[0129] Optionally, in the redundant power supply system of the above-mentioned server, 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 by a programmable logic device.

[0130] It is easy to understand that through the redundant power supply system of the above-mentioned server, in the embodiment of the present application, a microcontroller unit is used to implement the first primary fault detection control unit and the second primary fault detection control unit, and the ability of the microcontroller unit to quickly process data 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 respond quickly when a fault is detected, thereby improving the response speed of the redundant power supply system of the server; a programmable logic device (Complex Programmable Logic Device, abbreviated as CPLD) is used to implement the first secondary fault detection control unit and the second secondary fault detection control unit, and the programmability of the programmable logic device can be utilized. It can be configured more flexibly according to actual fault detection requirements, thereby improving the flexibility of the redundant power supply system of the server.

[0131] The method embodiments provided in the embodiments of the present application can also be executed in a server device or a similar computing device. Taking running on a server device as an example, Fig.11 FIG. 1 is a hardware structure diagram of a server device of an optional server redundant power management method according to an embodiment of the present application. Fig.11 As shown, the server device may include one or more ( Fig.11Only one is shown in the figure) a 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, wherein the above-mentioned server device may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Fig.11 The structure shown is only for illustration and does not limit the structure of the above server device. Fig.11 More or fewer components as shown, or with Fig.11 Different configurations are 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 embodiment 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, to implement 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 memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the server device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an 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. The specific example of the above network may include a wireless network provided by a communication provider of the server device. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0134] In an embodiment of the present application, a redundant power supply management method for a server is also provided, which is applied to any of the redundant power supply systems mentioned above, wherein the redundant power supply system includes a host power supply and a slave power supply. Fig.12 is a flow chart of a redundant power management method for a server according to an embodiment of the present application, such as Fig.12 As shown, the method includes the following implementation steps:

[0135] Step S121, in response to the presence of an input power-off anomaly in the first primary high-voltage input part of the slave power supply corresponding to the server, controlling the slave power supply to actively shut down, activating the first boost circuit unit of the slave power supply to work, and sending a first alarm signal to the host power supply corresponding to the server, wherein whether the first primary high-voltage input part has an input power-off anomaly is detected and determined by the first primary fault detection control unit of the slave power supply;

[0136] Step S122, 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 trigger the first energy storage capacitor of the slave power supply to transmit electric energy to the second energy storage capacitor of the host power supply, so that the second energy storage capacitor is boosted.

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

[0138] Step S123, in response to the presence of an input power-off anomaly in the second primary high-voltage input part of the host power supply, controlling the host power supply to actively shut down, activating the second boost circuit unit of the host power supply to work, and sending a second alarm signal 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;

[0139] Step S124, in response to the slave power supply receiving the second alarm signal, the first primary fault detection control unit activates the first combining circuit unit of the slave power supply to operate, 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.

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

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

[0142] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0143] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general 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 a program code executable by a computing device, so that 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 from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0144] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principles 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 operate 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.

2. 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 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.

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

4. The redundant power supply system for a server according to claim 1 or 2, 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.

5. 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.

6. 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.

7. 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.

8. 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.

9. 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.

10. The redundant power supply system for a server according to claim 9, 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.

11. The redundant power supply system for a server according to claim 9, 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.

12. The redundant power supply system for a server according to claim 6, 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.

13. A redundant power management method for a server, characterized in that: The redundant power supply system applied to any one of claims 1 to 10, 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 and 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 electrical energy to the second energy storage capacitor of the host power supply, so that the second energy storage capacitor is boosted.

14. The redundant power management method for a server according to claim 13, characterized in that: The redundant power management method further comprises: 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.

15. 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 9, 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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