Power supply system and method of server, electronic device, and storage medium

Patent metadata

Field	Value
Publication number	US-12355276-B2
Application number	US-202318867994-A
Country	US
Kind code	B2
Filing date	Jun 20, 2023
Priority date	Nov 28, 2022
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

A power supply system and method of a server, an electronic device, and a storage medium are provided. By means of cooperative work of main circuit structures such as a high-voltage battery power master control unit, battery string management and control units, and power conversion string management and control units, power information of each subsystem in the power supply system is collected and analyzed in real time, and the high-voltage battery power master control unit can also issue a corresponding control instruction to each subsystem according to the analysis result so as to realize power control of each subsystem, thereby controlling the total output power of the server.

First claim

The invention claimed is:

1. A power supply system of a server, comprising at least one power supply module, wherein the power supply module at least comprises a high-voltage battery power master control unit, at least one power conversion string control unit, at least one battery string control unit and a state monitoring management unit respectively connected to the high-voltage battery power master control unit, a power conversion unit connected to the power conversion string control unit, and a battery string unit connected to the battery string control unit, each battery string unit is correspondingly connected to a power conversion unit, and various power conversion units are connected in parallel and then connected to the state monitoring management unit;
the battery string control unit is configured to collect power information of the battery string unit, the power information comprises a plurality of voltage, current and temperature signals in the battery string unit, analyze a health state of the battery string unit based on the plurality of voltage, current and temperature signals in the battery string unit, to generate a state information table corresponding to the battery string unit, send the state information table corresponding to the battery string unit to the high-voltage battery power master control unit, receive a switching control instruction generated by the high-voltage battery power master control unit based on the state information table, and control a switching state of the battery string unit based on the switching control instruction;
the power conversion string control unit is configured to receive a power control instruction generated by the high-voltage battery power master control unit based on the state information table, and control the power conversion unit to acquire an output voltage from the battery string unit based on the power control instruction;
the power conversion unit is configured to adjust the output voltage from a first predetermined voltage range to a second predetermined voltage range, and transmit the adjusted output voltage to the state monitoring management unit, and the second predetermined voltage range is within the first predetermined voltage range; and
the state monitoring management unit is configured to calculate a total output power based on the adjusted output voltage, and output the total output power to the server.

2. The power supply system according to claim 1 , wherein the high-voltage battery power master control unit is configured to:
receive the state information table sent by the battery string control unit, compare the state information table with predetermined total output data, generate the switching control instruction and the power control instruction, send the switching control instruction to the battery string control unit, and send the power control instruction to the power conversion string control unit corresponding to the battery string control unit.

3. The power supply system according to claim 1 , wherein the battery string control unit is configured to:
convert the switching control instruction into a switching control signal, and send the switching control signal to the battery string unit; and
the battery string unit is configured to:
control a power switching tube in the battery string unit to switch to a switching state corresponding to the switching control signal.

4. The power supply system according to claim 1 , wherein the power conversion string control unit is configured to:
convert the power control instruction into a power control signal, and send the power control signal to the power conversion unit; and
the power conversion unit is configured to:
perform a voltage acquisition operation corresponding to the power control signal to acquire an output voltage from a battery string unit corresponding to the power conversion unit.

5. The power supply system according to claim 1 , wherein the power conversion unit is configured to:
reallocate power to battery string units other than a faulty battery string unit based on a predetermined power threshold when the faulty battery string unit is detected.

6. The power supply system according to claim 1 , wherein the power conversion unit is further configured to:
adjust an input voltage state and an output voltage state of the power conversion unit, to adjust an output voltage of a battery cell in a battery string unit corresponding to the power conversion unit from the first predetermined voltage range to the second predetermined voltage range.

7. The power supply system according to claim 1 , wherein the power conversion string control unit is configured to:
receive a voltage conversion instruction sent by the high-voltage battery power master control unit, and execute the voltage conversion instruction, to control voltage conversion between power conversion units corresponding to the voltage conversion instruction.

8. The power supply system according to claim 6 , wherein the high-voltage battery power master control unit is configured to:
receive the total output power sent by the state monitoring management unit, and control the power supply module to output the total output power to the server as a total power output value of the server; or
control the power supply module to output a predetermined total power output value to the server as the total power output value of the server.

9. The power supply system according to claim 8 , wherein the high-voltage battery power master control unit is further configured to:
allocate evenly the total output power, or the predetermined total power output value to each battery string unit when power information of each battery string unit meets a predetermined power condition; and
determine power of an abnormal battery string unit based on a predetermined derated output power, and calculate power corresponding to remaining battery string units that meets the predetermined power condition based on the total output power, or the predetermined total power output value and the power of the abnormal battery string unit, when the abnormal battery string unit with power information not meeting the predetermined power condition is present.

10. The power supply system according to claim 9 , wherein the battery string control unit is configured to:
acquire a turn-off control instruction sent by the high-voltage battery power control unit, and execute a turn-off operation corresponding to the turn-off control instruction, to turn off a power output of the adjusted battery string unit, when power information of the adjusted battery string unit still does not meet the predetermined power condition.

11. The power supply system according to claim 7 , wherein the high-voltage battery power master control unit is configured to:
analyze output power of each battery string unit based on the state information table and the predetermined output power, and determine a voltage difference between any two battery string units based on the analysis result; and
send a discharging control instruction to a power conversion string control unit corresponding to a high-voltage battery string unit to control the high-voltage battery string unit to discharge a low-voltage battery string unit when the voltage difference is greater than or equal to a first predetermined voltage difference threshold.

12. The power supply system according to claim 11 , wherein the high-voltage battery power master control unit, or a battery string control unit corresponding to the high-voltage battery string unit, is configured to:
send a bypass control instruction to the high-voltage battery string unit to control the high-voltag

Assignees

• Suzhou Metabrain Intelligent Technology Co Ltd

Inventors

• Wang Lingyan
• Hua Deyang
• Wu An

Classifications

• H02J2105/425

  the loads being an Information and Communication Technology [ICT] facility · CPC title

• H02J7/855

  with circuits adapted for supplying loads from the battery · CPC title

• H02J7/84

  Control of state of health [SOH] · CPC title

• H02J7/62

  against overcurrent · CPC title

• H02J7/40

  characterised by the exchange of charge or discharge related data · CPC title