CN-115395499-B - Power supply parallel machine output current sharing circuit and method and system thereof

CN115395499BCN 115395499 BCN115395499 BCN 115395499BCN-115395499-B

Abstract

The invention discloses a power parallel machine output current sharing circuit, a method and a system thereof, which relate to the technical field of computers and determine the execution quantity of redundant power supply modules according to rated power and standby load of the redundant power supply modules; when the execution quantity is 1, the standby load is supplied with power by the redundant power supply module through the constant current output circuit, and when the execution quantity is more than 1, the standby load is subjected to current sharing processing according to the execution quantity of the constant current output circuit through the constant current output circuit, and the standby load is supplied with power by the corresponding redundant power supply module according to the current sharing output power. The method solves the technical problems that the standby power of the parallel operation of the redundant power supply cannot realize the output current sharing, and the abnormal operation of the whole machine caused by high standby power consumption cannot be effectively improved. The power consumption requirement of the standby load is met, the redundant power supply module is selected, the current sharing control is realized, the working state of the whole machine is ensured, and the effect that the standby voltage is stable and does not drop when the server is converted from standby to normal operation of the system is ensured by utilizing the characteristic of the constant current circuit.

Inventors

JU QIANG
YANG MINGSHENG

Assignees

联想长风科技(北京)有限公司
联想长风科技(北京)有限公司

Dates

Publication Date: 20260421
Application Date: 20220826
Priority Date: 20220826

Claims (2)

1. The power supply parallel machine output current sharing method is characterized by being applied to a power supply parallel machine output current sharing circuit, and the power supply parallel machine output current sharing circuit comprises: The power supply output current sharing combination comprises more than two power supply output current sharing combinations, all the power supply output current sharing combinations are connected in parallel, and an output end of each power supply output current sharing combination after being connected in parallel is connected with a standby load to supply power for the standby load, wherein each power supply output current sharing combination comprises a redundant power supply module and a constant current output circuit, and an output end of each redundant power supply module is connected with an input end of the constant current output circuit; The maximum output capacity of the constant current output circuit is matched with the rated power of the redundant power supply module; The power supply parallel operation output current sharing method comprises the following steps: Obtaining a standby load; obtaining rated power of a redundant power supply module; determining the execution quantity of the redundant power supply modules according to the rated power of the redundant power supply modules and the standby load; When the execution number of the redundant power supply modules is 1, the redundant power supply modules are connected to supply power for the standby load through the constant current output circuit; When the execution quantity of the redundant power supply modules is larger than 1, the standby load is subjected to current sharing processing according to the execution quantity of the constant current output circuits through the constant current output circuits, the current sharing output load is determined, and the standby load is supplied with power by accessing the corresponding constant current output circuits according to the current sharing output load and the execution quantity of the redundant power supply modules; determining the execution quantity of the redundant power supply modules according to the rated power of the redundant power supply modules and the standby load, wherein the method comprises the following steps: When the standby load is smaller than the rated power of a single redundant power supply module, the execution number of the redundant power supply modules is 1; When the standby load is larger than the rated power of a single redundant power supply module and smaller than the sum of the rated powers of two redundant power supply modules, the execution number of the redundant power supply modules is 2; when the standby load is larger than the rated power of N redundant power supply modules and smaller than the sum of the rated powers of N+1 redundant power supply modules, the execution number of the redundant power supply modules is N+1, wherein N is a positive integer larger than 2; when the execution number of the redundant power supply modules is 1, the redundant power supply modules are connected to supply power for the standby load through the constant current output circuit, and the method comprises the following steps: Judging whether the output voltages of all the constant current output circuits are the same, and when the output voltages of the constant current output circuits are different, selecting the constant current output circuit with the highest output voltage to supply power for a subsequent load.
2. A power supply parallel output current sharing system, wherein the system is configured to implement the method of claim 1, and the system comprises: a standby load obtaining unit for obtaining a standby load; the redundant power supply obtaining unit is used for obtaining rated power of the redundant power supply module; the execution number determining unit is used for determining the execution number of the redundant power supply modules according to the rated power of the redundant power supply modules and the standby load; The constant current execution unit is used for accessing the redundant power supply module to supply power for the standby load through the constant current output circuit when the execution number of the redundant power supply modules is 1; And the current sharing execution unit is used for carrying out current sharing processing on the standby load according to the execution quantity of the constant current output circuits through the constant current output circuits when the execution quantity of the redundant power supply modules is larger than 1, determining the current sharing output load, and accessing the corresponding constant current output circuits according to the current sharing output load and the execution quantity of the redundant power supply modules to supply power to the standby load.

Description

Power supply parallel machine output current sharing circuit and method and system thereof Technical Field The invention relates to the technical field of computers, in particular to a power supply parallel output current sharing circuit, a method and a system thereof. Background The reinforced blade server has a scene of higher standby power consumption, and the standby power consumption is close to or even exceeds the maximum power consumption of a standby power supply of a single power supply module. The number of inserted blades of the blade server is large, and the theoretical value of standby power consumption of the whole machine exceeds the standby power consumption output of a power supply, so that the whole machine can work abnormally. The whole machine power supply scheme uses a redundant power supply parallel machine for supplying power, but the standby power of the redundant power supply parallel machine can not realize the output current sharing, the output power of the redundant power supply parallel machine is still not improved, and the phenomenon of abnormal work caused by high standby power consumption can not be effectively improved. Disclosure of Invention Aiming at the technical problems, the application provides a power supply parallel operation output current sharing circuit, a method and a system thereof, which are used for solving the technical problems that in the prior art, the standby power of a redundant power supply parallel operation can not realize output current sharing, the output power of the power supply parallel operation output power is not improved, and the abnormal operation of the whole machine caused by high standby power consumption can not be effectively improved. In view of the above problems, the application provides a power supply parallel output current sharing circuit, a method and a system thereof. The application provides a power supply parallel machine output current sharing circuit which comprises two or more power supply output current sharing combinations, wherein all the power supply output current sharing combinations are connected in parallel, an output end of each power supply output current sharing combination after being connected in parallel is connected with a standby load to supply power for the standby load, and each power supply output current sharing combination comprises a redundant power supply module and a constant current output circuit, and an output end of each redundant power supply module is connected with an input end of the constant current output circuit. Preferably, the redundant power supply modules are rated power. Preferably, the maximum output capacity of the constant current output circuit is matched with the rated power of the redundant power supply module. The application provides a power parallel machine output current sharing method, which comprises the steps of obtaining standby loads, obtaining rated power of redundant power supply modules, determining execution quantity of the redundant power supply modules according to the rated power of the redundant power supply modules and the standby loads, accessing the redundant power supply modules to supply power to the standby loads through constant current output circuits when the execution quantity of the redundant power supply modules is 1, and carrying out current sharing processing on the standby loads according to the execution quantity of the constant current output circuits through the constant current output circuits when the execution quantity of the redundant power supply modules is greater than 1, determining current sharing output loads, and accessing the corresponding constant current output circuits to supply power to the standby loads according to the current sharing output loads and the execution quantity of the redundant power supply modules. Preferably, the number of redundant power supply modules is determined according to the rated power of the redundant power supply modules and the standby load, wherein the number of redundant power supply modules is 1 when the standby load is smaller than the rated power of a single redundant power supply module, 2 when the standby load is larger than the rated power of the single redundant power supply module and smaller than the rated power sum of two redundant power supply modules, and n+1 when the standby load is larger than the rated power of N redundant power supply modules and smaller than the rated power sum of N+1 redundant power supply modules, and N is a positive integer larger than 2. Preferably, when the execution number of the redundant power supply modules is 1, the redundant power supply modules are connected to supply power to the standby load through the constant current output circuits, and the method comprises the steps of judging whether output voltages of all the constant current output circuits are the same, and when the output voltages of the constant current output circuits are different, sele