Power management system and method for server in immersed liquid cooling cabinet

Abstract

The invention relates to a power management system and method for a server in an immersed liquid-cooled cabinet, and the system comprises an energy storage module, a power monitoring module, a zero-voltage starting circuit unit, a current monitoring unit, a main power module, a redundant power module, and a control module. The protection of the immersed liquid cooling cabinet and the server is realized; the current monitoring unit monitors current in a power supply circuit of the power supply and judges whether overcurrent or short circuit occurs in the power supply circuit; the main power supply module firstly supplies power to the immersed liquid cooling cabinet and the server; when the main power supply is abnormal, the control module switches the main power supply module to the redundant power supply module; the power supply monitoring module collects data of various performance parameters of the main power supply module or the redundant power supply module. Effective management of the power supply is realized, and normal operation of a liquid cooling cabinet and a server in a current mode is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of server power management, and in particular relates to a power management system and method for a server in an immersion liquid cooling cabinet. Background Art

[0002] With the development of the network, the demand for data processing is increasing, the performance requirements of servers are also getting higher and higher, and the power consumption of servers is also getting higher and higher. The development of server heat dissipation has also evolved from the initial use of heat sinks on heat-generating devices to adding fans on heat sinks so that the server system can maintain a stable operating temperature. At present, air cooling can no longer meet today's heat dissipation needs, and immersion liquid cooling technology has emerged. As an efficient heat dissipation method, immersion liquid cooling technology is widely used in data centers. In the immersion liquid cooling cabinet, the power supply scheme of the server's power supply unit is a key link, which supplies power to the server and the liquid cooling cabinet. The good power supply performance of the power supply unit is the basis for the normal operation of the server.

[0003] The power management of the server in the existing immersion liquid cooling cabinet generally only monitors whether there is an abnormal power outage in the power supply unit. As a result, when other types of power supply unit abnormalities occur, they cannot be discovered and handled in time, which in turn causes abnormalities in the server or liquid cooling cabinet, which may cause huge losses.

[0004] Therefore, how to improve the power management of servers in existing immersion liquid cooling cabinets to ensure the normal operation of this year's model liquid cooling cabinets and servers is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to provide a power management system and method for a server in an immersion liquid cooling cabinet, so as to improve the power management of the existing server in the immersion liquid cooling cabinet and ensure the normal operation of this year's model liquid cooling cabinet and server.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0007] In a first aspect, a power management system for a server in an immersion liquid cooling cabinet is provided, comprising an energy storage module, a power monitoring module, a zero voltage start-up circuit unit, a current monitoring unit, a main power module, a redundant power module and a control module, wherein the energy storage module, the power monitoring module, the zero voltage start-up circuit unit, the current monitoring unit, the main power module and the redundant power module are all connected to the control module, the energy storage module is connected to the zero voltage start-up circuit unit, and the current monitoring unit is connected to the energy storage module;

[0008] The zero voltage starting circuit unit is used for zero voltage starting of the power supply to achieve protection of the immersion liquid cooling cabinet and the server;

[0009] The current monitoring unit is used to monitor the current in the power supply circuit of the power source to determine whether there is an overcurrent or short circuit in the power supply circuit;

[0010] The main power supply module is used to first supply power to the immersion liquid cooling cabinet and the server;

[0011] The redundant power supply module is used for controlling the main power supply module to switch to the redundant power supply module when an abnormality occurs in the main power supply, so that the redundant power supply module supplies power to the immersion liquid cooling cabinet and the server;

[0012] The power supply monitoring module is used to collect data on various performance parameters of the main power supply module or the redundant power supply module, and transmit the data to the control module for analysis to determine whether there are any abnormalities in the main power supply module and the redundant power supply module;

[0013] The control module is used to control the power monitoring module, the zero voltage starting circuit unit, the current monitoring unit, the main power module, and the redundant power module.

[0014] Preferably, the zero voltage start circuit unit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first diode, a second diode, a first transistor, a first capacitor, a second capacitor, a voltage input terminal and a voltage output terminal;

[0015] The second resistor is connected in parallel to both ends of the first capacitor. After the second resistor is connected in parallel to the first capacitor, one end of the second resistor is connected to the voltage input end through the first resistor and connected to the cathode of the first diode, and the other end of the second resistor is connected to the anode of the second diode;

[0016] The third resistor is connected in series with the fourth resistor, the anode of the first diode and the cathode of the second diode are both connected to the third resistor and the fourth resistor, the fourth resistor is connected to the second capacitor, the other end of the second capacitor is connected to the drain of the first transistor, the fifth resistor is connected to the gate of the first transistor, the source of the first transistor is connected to the voltage output end, the drain of the first transistor and the second capacitor are both connected to the load, and the first resistor, the third resistor and the voltage input end are all connected to the load.

[0017] Preferably, the loads are immersion liquid cooling cabinets and servers.

[0018] Preferably, the current monitoring unit includes a current sensor, a comparator, a sixth resistor, a seventh resistor, a second triode, a third triode, a fourth triode, and a third capacitor;

[0019] The current sensor is connected to a comparator, the comparator is connected to the sixth resistor and the seventh resistor respectively, the sixth resistor is connected to the drain of the second transistor, the source of the second transistor is connected to the third capacitor, one end of the seventh resistor is connected to the comparator, and the other end is connected to the gate of the second transistor, the drain of the third transistor and the gate of the fourth transistor.

[0020] Preferably, it further comprises a switched capacitor voltage converter, which is connected to the control module and is used to adjust the pulse duty cycle to control the capacitor voltage of the energy storage module based on the clock control pulse sent by the control module.

[0021] In a second aspect, a power management method for a server in an immersion liquid cooling cabinet is provided, which is implemented based on a power management system and method for a server in an immersion liquid cooling cabinet as described in any one of the above, and is characterized in that it includes the following steps:

[0022] S1: Send a power startup command to the control module. After receiving the control command, the control module initiates a control command to the zero voltage startup circuit unit. The zero voltage startup circuit unit is started to perform zero voltage startup on the power management system and method of the server in the immersion liquid cooling cabinet.

[0023] S2: When the power management system and method for the server in the immersion liquid cooling cabinet are started, the control module controls the current monitoring unit to start, collects the current in the circuit of the power management system and method for the server in the immersion liquid cooling cabinet, and transmits the collected current information to the control module;

[0024] S3: The control module determines whether there is overcurrent or short circuit in the circuit based on the received current data. If so, the power supply is cut off and the location data of the overcurrent or short circuit is sent to the control module. The control module sends the relevant information to the management terminal and performs alarm processing at the same time.

[0025] Preferably, while current monitoring is performed in step S2, the control module controls the power supply monitoring module to start, collects operating data of the main power supply module through the power supply monitoring module, and transmits the collected operating data of the power supply to the control module. The control module receives real-time data of the operation of the main power supply module to determine whether there is an abnormality in the main power supply module. If so, while cutting off the current main power supply module, the redundant power supply module is started, power is supplied through the redundant power supply module, and the abnormal information of the main power supply module is sent to the management terminal, and alarm processing is performed at the same time.

[0026] The beneficial effects of the present invention include:

[0027] The present invention provides a power management system and method for a server in an immersion liquid cooling cabinet, comprising an energy storage module, a power monitoring module, a zero voltage starting circuit unit, a current monitoring unit, a main power module, a redundant power module and a control module. The zero voltage starting circuit unit performs zero voltage starting of the power supply to protect the immersion liquid cooling cabinet and the server; the current monitoring unit monitors the current in the power supply circuit of the power supply to determine whether there is an overcurrent or short circuit in the power supply circuit; the main power module first supplies power to the immersion liquid cooling cabinet and the server; when the main power supply of the redundant power module is abnormal, the control module switches the main power module to the redundant power module; the power monitoring module collects data on various performance parameters of the main power module or the redundant power module.

[0028] Firstly, by setting a zero voltage starting circuit unit, the power supply can overcome the current impact of the load capacitor short circuit when inserted. Therefore, the first transistor is connected in series in the load circuit. When starting, the first transistor is controlled. In the amplification area, the first transistor is equivalent to a current limiting resistor. The load capacitor is slowly charged through the resistor to ensure that the power supply appliance will not burn out, short-circuit or overcurrent when starting, which effectively protects the power supply and prolongs the service life of the power supply.

[0029] Secondly, by setting up a current monitoring unit to collect current data of the circuit in the power management system of the server in the immersion liquid cooling cabinet, the current situation in the system is monitored in real time to ensure that the system can provide the control module for timely processing when overcurrent or short circuit occurs, thereby effectively protecting the immersion liquid cooling cabinet and the server.

[0030] Thirdly, by setting up a source monitoring module to monitor the main power module or redundant power module in use, when the main power module or redundant power module in use has an abnormality, the control module will switch in time, effectively ensuring that when the power supply is abnormal, the server or liquid cooling cabinet will not lose power, effectively avoiding the occurrence of losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The present invention is a flowchart of a method for managing power supply of a server in an immersion liquid cooling cabinet.

[0032] Figure 2 The present invention is a circuit diagram of a zero-voltage startup circuit unit in a power management system for a server in an immersion liquid cooling cabinet.

[0033] Figure 3 The present invention is a circuit diagram of a current monitoring unit in a power management system of a server in an immersion liquid cooling cabinet.

[0034] Figure symbols: R1 is the first resistor, R2 is the second resistor, R3 is the third resistor, R4 is the fourth resistor, R5 is the fifth resistor, R6 is the sixth resistor, R7 is the seventh resistor, D1 is the first diode, D2 is the second diode, Q1 is the first transistor, Q2 is the second transistor, Q3 is the third transistor, Q4 is the fourth transistor, C1 is the first capacitor, C2 is the second capacitor, C3 is the third capacitor, Uin is the voltage input terminal, Uout is the voltage output terminal, and COMP is the comparator. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 to Figure 3 The present invention is further described in detail:

[0036] Example 1

[0037] See attached Figure 1 As shown, a power management system for a server in an immersion liquid cooling cabinet includes an energy storage module, a power monitoring module, a zero voltage starting circuit unit, a current monitoring unit, a main power module, a redundant power module and a control module. The energy storage module, the power monitoring module, the zero voltage starting circuit unit, the current monitoring unit, the main power module and the redundant power module are all connected to the control module, the energy storage module is connected to the zero voltage starting circuit unit, and the current monitoring unit is connected to the energy storage module.

[0038] The zero voltage start circuit unit is used for zero voltage start of the power supply to protect the immersion liquid cooling cabinet and the server. The current monitoring unit is used to monitor the current in the power supply circuit of the power supply to determine whether there is an overcurrent or short circuit in the power supply circuit. The main power supply module is used to first power the immersion liquid cooling cabinet and the server. The redundant power supply module is used when the main power supply is abnormal, and the control module switches the main power supply module to the redundant power supply module so that the redundant power supply module supplies power to the immersion liquid cooling cabinet and the server. The power supply monitoring module is used to collect data on various performance parameters of the main power supply module or the redundant power supply module, and transmit it to the control module for analysis to determine whether there is an abnormality in the main power supply module and the redundant power supply module. The control module is used to control the power supply monitoring module, the zero voltage start circuit unit, the current monitoring unit, the main power supply module, and the redundant power supply module.

[0039] When the server needs to work, the power management system of the server in the immersion liquid cooling cabinet is automatically started first, and the zero-voltage starting circuit unit is started through the power management system of the server in the immersion liquid cooling cabinet. Zero-voltage starting is performed through the zero-voltage starting circuit unit to achieve precise control of voltage and current, avoid circuit instability during the startup process, ensure the safety and stability of power startup, ensure the normal operation of the circuit and extend the service life of the power supply itself and the load.

[0040] Example 2

[0041] See also Figure 2 On the basis of Example 1, the zero voltage start circuit unit includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first diode D1, a second diode D2, a first transistor Q1, a first capacitor C1, a second capacitor C2, a voltage input terminal Uin, and a voltage output terminal Uout. The second resistor R2 is connected in parallel to both ends of the first capacitor C1. After the second resistor R2 is connected in parallel to the first capacitor C1, one end is connected to the voltage input terminal Uin through the first resistor R1 and is connected to the cathode of the first diode D1, and the other end is connected to the anode of the second diode D2. The third resistor R3 is connected in series with the fourth resistor R4, the anode of the first diode D1 and the cathode of the second diode D2 are both connected to the third resistor R3 and the fourth resistor R4, the fourth resistor R4 is connected to the second capacitor C2, the other end of the second capacitor C2 is connected to the drain of the first transistor Q1, the fifth resistor R5 is connected to the gate of the first transistor Q1, the source of the first transistor Q1 is connected to the voltage output terminal Uout, the drain of the first transistor Q1 and the second capacitor C2 are both connected to the load, and the first resistor R1, the third resistor R3 and the voltage input terminal Uin are all connected to the load. The load is an immersion liquid cooling cabinet and a server.

[0042] The zero voltage start circuit unit is set up so that the power supply can overcome the current impact of the load capacitor short circuit when inserted. Therefore, the first transistor Q1 is connected in series in the load circuit. When starting, the first transistor Q1 is controlled. In the amplification area, the first transistor Q1 is equivalent to a current limiting resistor. The load capacitor is slowly charged through the resistor to ensure that the power supply appliance will not burn or short-circuit or overcurrent when starting. At the same time, by starting the zero voltage start circuit unit, the zero voltage start circuit unit is used to perform zero voltage start, realize accurate control of voltage and current, avoid unstable circuits during the start-up process, ensure the safety and stability of the power supply start-up, ensure the normal operation of the circuit and extend the service life of the power supply itself and the load.

[0043] Example 3

[0044] On the basis of Example 1 or Example 2, the current monitoring unit includes a current sensor, a comparator COMP, a sixth resistor R6, a seventh resistor R7, a second triode Q2, a third triode Q3, a fourth triode Q4, and a third capacitor C3. The current sensor is connected to the comparator COMP, the comparator COMP is connected to the sixth resistor R6 and the seventh resistor R7 respectively, the sixth resistor R6 is connected to the drain of the second triode Q2, the source of the second triode Q2 is connected to the third capacitor C3, one end of the seventh resistor R7 is connected to the comparator COMP, and the other end is connected to the gate of the second triode Q2, the drain of the third triode Q3 and the gate of the fourth triode Q4. The power management system of the server in the immersion liquid cooling cabinet also includes a switched capacitor voltage converter, which is connected to the control module and is used to adjust the pulse duty cycle to control the capacitor voltage of the energy storage module based on the clock control pulse sent by the control module.

[0045] A power management method for a server in an immersion liquid cooling cabinet is implemented based on any one of the power management systems and methods for a server in an immersion liquid cooling cabinet, and is characterized by comprising the following steps:

[0046] S1: Send a power startup command to the control module. After receiving the control command, the control module initiates a control command to the zero voltage startup circuit unit. The zero voltage startup circuit unit is started to perform zero voltage startup on the power management system and method of the server in the immersion liquid cooling cabinet.

[0047] S2: When the power management system and method for the server in the immersion liquid cooling cabinet are started, the control module controls the current monitoring unit to start, collects the current in the circuit of the power management system and method for the server in the immersion liquid cooling cabinet, and transmits the collected current information to the control module;

[0048] S3: The control module determines whether there is overcurrent or short circuit in the circuit based on the received current data. If so, the power supply is cut off and the location data of the overcurrent or short circuit is sent to the control module. The control module sends the relevant information to the management terminal and performs alarm processing at the same time.

[0049] Preferably, while current monitoring is performed in step S2, the control module controls the power supply monitoring module to start, collects operating data of the main power supply module through the power supply monitoring module, and transmits the collected operating data of the power supply to the control module. The control module receives real-time data of the operation of the main power supply module to determine whether there is an abnormality in the main power supply module. If so, while cutting off the current main power supply module, the redundant power supply module is started, power is supplied through the redundant power supply module, and the abnormal information of the main power supply module is sent to the management terminal, and alarm processing is performed at the same time.

[0050] In summary, the present invention provides a power management system and method for a server in an immersion liquid cooling cabinet, including an energy storage module, a power monitoring module, a zero voltage starting circuit unit, a current monitoring unit, a main power module, a redundant power module and a control module. The zero voltage starting circuit unit performs zero voltage starting of the power supply to protect the immersion liquid cooling cabinet and the server; the current monitoring unit monitors the current in the power supply circuit of the power supply to determine whether there is an overcurrent or short circuit in the power supply circuit; the main power module first supplies power to the immersion liquid cooling cabinet and the server; when the main power supply of the redundant power supply module is abnormal, the control module switches the main power supply module to the redundant power supply module; the power monitoring module collects data on various performance parameters of the main power supply module or the redundant power supply module.

[0051] By setting a zero voltage start-up circuit unit, the power supply can overcome the current impact of the load capacitor short circuit on the power supply when inserted. Therefore, the first transistor Q1 is connected in series in the load circuit, and the first transistor Q1 is controlled at startup. In the amplification area, the first transistor Q1 is equivalent to a current limiting resistor. The load capacitor is slowly charged through the resistor to ensure that the power supply appliance will not burn or short-circuit or overcurrent when starting, effectively protecting the power supply and extending the service life of the power supply. By setting a current monitoring unit to collect the current data of the circuit in the power management system of the server in the immersion liquid cooling cabinet, the current situation in the system is monitored in real time to ensure that the system can provide the control module for timely processing when overcurrent or short circuit occurs, effectively protecting the immersion liquid cooling cabinet and the server. By setting a source monitoring module to monitor the main power module or redundant power module in use, when the main power module or redundant power module in use is abnormal, it is switched in time through the control module, effectively ensuring that when the power supply is abnormal, the server or liquid cooling cabinet will not lose power, effectively avoiding the occurrence of losses.

Claims

1. A power management system for a server in an immersion liquid cooling cabinet, comprising an energy storage module, characterized in that: It also includes a power monitoring module, a zero voltage starting circuit unit, a current monitoring unit, a main power module, a redundant power module and a control module, wherein the energy storage module, the power monitoring module, the zero voltage starting circuit unit, the current monitoring unit, the main power module and the redundant power module are all connected to the control module, the energy storage module is connected to the zero voltage starting circuit unit, and the current monitoring unit is connected to the energy storage module; The zero voltage starting circuit unit is used for zero voltage starting of the power supply to achieve protection of the immersion liquid cooling cabinet and the server; The current monitoring unit is used to monitor the current in the power supply circuit of the power source to determine whether there is an overcurrent or short circuit in the power supply circuit; The main power supply module is used to first supply power to the immersion liquid cooling cabinet and the server; The redundant power supply module is used for controlling the main power supply module to switch to the redundant power supply module when an abnormality occurs in the main power supply, so that the redundant power supply module supplies power to the immersion liquid cooling cabinet and the server; The power supply monitoring module is used to collect data on various performance parameters of the main power supply module or the redundant power supply module, and transmit the data to the control module for analysis to determine whether there are any abnormalities in the main power supply module and the redundant power supply module; The control module is used to control the power monitoring module, the zero voltage starting circuit unit, the current monitoring unit, the main power module, and the redundant power module.

2. The power management system for a server in an immersion liquid cooling cabinet according to claim 1, characterized in that: The zero voltage start circuit unit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first diode, a second diode, a first transistor, a first capacitor, a second capacitor, a voltage input terminal and a voltage output terminal; The second resistor is connected in parallel to both ends of the first capacitor. After the second resistor is connected in parallel to the first capacitor, one end of the second resistor is connected to the voltage input end through the first resistor and connected to the cathode of the first diode, and the other end of the second resistor is connected to the anode of the second diode; The third resistor is connected in series with the fourth resistor, the anode of the first diode and the cathode of the second diode are both connected to the third resistor and the fourth resistor, the fourth resistor is connected to the second capacitor, the other end of the second capacitor is connected to the drain of the first transistor, the fifth resistor is connected to the gate of the first transistor, the source of the first transistor is connected to the voltage output end, the drain of the first transistor and the second capacitor are both connected to the load, and the first resistor, the third resistor and the voltage input end are all connected to the load.

3. The power management system for a server in an immersion liquid cooling cabinet according to claim 2, characterized in that: The loads are immersion liquid cooling cabinets and servers.

4. The power management system for a server in an immersion liquid cooling cabinet according to claim 1, characterized in that: The current monitoring unit includes a current sensor, a comparator, a sixth resistor, a seventh resistor, a second transistor, a third transistor, a fourth transistor, and a third capacitor; The current sensor is connected to a comparator, the comparator is connected to the sixth resistor and the seventh resistor respectively, the sixth resistor is connected to the drain of the second transistor, the source of the second transistor is connected to the third capacitor, one end of the seventh resistor is connected to the comparator, and the other end is connected to the gate of the second transistor, the drain of the third transistor and the gate of the fourth transistor.

5. The power management system for a server in an immersion liquid cooling cabinet according to claim 5, characterized in that: It also includes a switched capacitor voltage converter, which is connected to the control module and is used to adjust the pulse duty cycle to control the capacitor voltage of the energy storage module based on the clock control pulse sent by the control module.

6. A power management method for a server in an immersion liquid cooling cabinet, implemented based on a power management system for a server in an immersion liquid cooling cabinet according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: Send a power startup command to the control module. After receiving the control command, the control module initiates a control command to the zero voltage startup circuit unit. The zero voltage startup circuit unit is started to perform zero voltage startup on the power management system and method of the server in the immersion liquid cooling cabinet. S2: When the power management system and method for the server in the immersion liquid cooling cabinet are started, the control module controls the current monitoring unit to start, collects the current in the circuit of the power management system and method for the server in the immersion liquid cooling cabinet, and transmits the collected current information to the control module; S3: The control module determines whether there is overcurrent or short circuit in the circuit based on the received current data. If so, the power supply is cut off and the location data of the overcurrent or short circuit is sent to the control module. The control module sends the relevant information to the management terminal and performs alarm processing at the same time.

7. A power management method for a server in an immersion liquid cooling cabinet according to claim 6, characterized in that: While current monitoring is being performed in step S2, the control module controls the power supply monitoring module to start, collects operating data of the main power supply module through the power supply monitoring module, and transmits the collected operating data of the power supply to the control module. The control module receives real-time operating data of the main power supply module to determine whether there is an abnormality in the main power supply module. If so, while cutting off the current main power supply module, the redundant power supply module is started, power is supplied through the redundant power supply module, and the abnormal information of the main power supply module is sent to the management terminal, and alarm processing is performed at the same time.

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