CN111338454A - System and method for balancing server power supply load - Google Patents
System and method for balancing server power supply load Download PDFInfo
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- CN111338454A CN111338454A CN202010132982.5A CN202010132982A CN111338454A CN 111338454 A CN111338454 A CN 111338454A CN 202010132982 A CN202010132982 A CN 202010132982A CN 111338454 A CN111338454 A CN 111338454A
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- 230000001360 synchronised effect Effects 0.000 claims description 14
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5094—Allocation of resources, e.g. of the central processing unit [CPU] where the allocation takes into account power or heat criteria
Abstract
The invention provides a system and a method for balancing a power supply load of a server, which comprises the following steps: the load, and main power supply and slave power supply for the load power supply, the said slave power supply has at least one, set up the first control unit in the said load, said main power supply and slave power supply set up the second control unit and third control circuit, the said second control unit is connected with third control unit; the second control unit of the master power supply is connected to the second control units of the plurality of slave power supplies, respectively. According to the invention, through setting the master-slave relation of the parallel power supply of the server, the power supply module of the server can actively adjust the PWM modulation signal of the power supply module, all the power supply modules adapt to the rapid change and the large-amplitude change of the load current, and the reliability of the power supply of the server is improved.
Description
Technical Field
The invention belongs to the technical field of server current sharing, and particularly relates to a system and a method for balancing a power supply load of a server.
Background
With the rapid development of internet technology, servers often need high-capacity direct-current power supplies. The power capacity of a single power supply is limited, and the high efficiency of the operation of the server cannot be guaranteed under the condition of large-capacity power supply, so that the power supply is gradually replaced by a distributed power supply system. In a power supply system based on parallel connection of a plurality of power supply units, parameters of each power supply cannot be completely consistent, and load currents shared by modules are inconsistent, so that current imbalance is caused.
At present, power supply power regulation of a GPU server is mainly realized by regulating a current sharing signal of a power supply, the power supply changes the amplitude of a voltage source of a direct current converter in each power supply according to the current sharing signal returned by a monitoring load, and output currents of power supply modules are balanced. The specific structure is as shown in fig. 1, the power supply adjusts the output voltage of the power supply by detecting the current signal fed back from the current equalizing bus, so as to achieve the purpose of current equalization.
Because the response speed of the current-sharing control circuit is slow, the method has the obvious defects that: when the load change rate is fast and the load change amplitude is very large, the response speed of the current-sharing control circuit cannot respond in time, so that the load of the power supply module cannot reach a balanced state, and further the system function is abnormal.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a system and a method for balancing a power load of a server, so as to solve the above-mentioned technical problems.
In a first aspect, the present invention provides a system for balancing server power supply loads, including: the load, and main power supply and slave power supply for the load power supply, the said slave power supply has at least one, set up the first control unit in the said load, said main power supply and slave power supply set up the second control unit and third control circuit, the said second control unit is connected with third control unit; the second control unit of the master power supply is connected to the second control units of the plurality of slave power supplies, respectively.
Furthermore, the second control unit is connected with the first control unit through a current feedback signal line.
Furthermore, photoelectric sensors are arranged in the main power supply and the secondary power supply, the input ends of the photoelectric sensors are connected with the second control unit, and the output ends of the photoelectric sensors are connected with the third control unit.
Furthermore, a direct current converter is arranged in the main power supply and the auxiliary power supply, the third control unit is connected with the direct current converter through a PWM modulation signal line, and the direct current converter is connected with a load.
In a second aspect, the present invention provides a method for balancing server power loads, including:
s1, setting a master power supply and a slave power supply by a mainboard control unit of the server according to a master-slave power supply relation principle;
s2, the master power supply sends out a synchronous control signal to the slave power supply, and the slave power supply automatically adjusts the current phase control signal of the slave power supply after receiving the synchronous control signal;
s3, the main power supply obtains the phase of the main board current, and adjusts the current phase modulation signal of the main power supply according to the phase of the main board current;
s4, comparing whether the current phase modulation signal of the main power supply and the current phase modulation signal of the slave power supply are synchronous:
if not, S2 is executed again;
and if the synchronization is carried out, judging that the power supply load current is balanced.
Further, the motherboard control unit identifies a server type and an address thereof, and the server type includes: ordinary servers, GPU servers, and other servers.
Further, the principle of the relationship between the master power supply and the slave power supply includes: the power supply with the minimum address in the power supplies with normal working conditions is set as a main power supply.
Further, the main board control unit monitors whether the main power supply is abnormal: if the abnormality occurs, the master power supply and the slave power supply are reset according to the principle of the relation between the master power supply and the slave power supply.
Further, after the slave power supply receives the synchronous control signal and automatically adjusts the current phase control signal of the slave power supply, the direct current exchanger of the slave power supply adjusts the voltage output to the mainboard according to the current phase control signal of the slave power supply.
Further, after adjusting the current phase modulation signal of the main power supply according to the phase of the main board current, the dc converter of the main power supply adjusts the voltage output to the main board according to the current phase control signal of the main power supply.
The beneficial effect of the invention is that,
according to the system and the method for server load balancing, the master-slave relation setting is carried out on the parallel power supplies of the server, the power supply modules of the server can actively adjust the PWM modulation signals of the power supply modules, all the power supply modules adapt to the rapid change and the large-amplitude change of the load current, and the reliability of the power supply of the server is improved.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the connections of the control unit of the system of one embodiment of the present application;
FIG. 2 is a schematic diagram of the internal power supply configuration of the system of one embodiment of the present application;
FIG. 3 is a diagram of PWM control signals before equalization of a master-slave power supply according to an embodiment of the present application;
FIG. 4 is a diagram of PWM control signals after equalization of a master and slave power supply according to an embodiment of the present application;
FIG. 5 is a block flow diagram of a method of one embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, an embodiment of the present application provides a system for balancing a power load of a server, including: the load comprises a load, a main power supply and a secondary power supply, wherein the main power supply and the secondary power supply power to the load, a first control unit is arranged in the load, as shown in fig. 2, a second control unit, a third control circuit, a photoelectric sensor and a direct current converter are arranged in each of the main power supply and the secondary power supply, and the second control unit is connected with the third control unit; the second control unit of the main power supply is respectively connected with the second control units of the plurality of slave power supplies; the second control unit is connected with the first control unit through a current feedback signal line; the input end of the photoelectric sensor is connected with the second control unit, and the output end of the photoelectric sensor is connected with the third control unit; the third control unit is connected with the direct current converter through a PWM modulation signal line, and the direct current converter is connected with a load.
After the system is powered on, the first control unit starts, sends out a synchronous control signal, receives the synchronous control signal from the power supply and adjusts a PMW control signal of the slave power supply; as shown in fig. 2, a PWM control signal is sent from a power supply to a dc converter of the power supply, and the dc converter starts to output voltage after being adjusted according to the PWM control signal; the main power supply synchronously adjusts the PWM control signal according to the condition of the load current and sends out the synchronous control signal again; the slave adjusts the PWM control signal again and compares it with the previous PWM control signal, as shown in fig. 3, and synchronously adjusts the PWM control signal; until the PWM control signal output from the power supply is synchronized with the main power supply, as shown in fig. 4, the phases of the currents output from the main power supply and the slave power supply are consistent, and the server load is balanced.
Specifically, the method for balancing the power supply load of the server comprises the following steps:
(1) the mainboard control unit identifies the type and the address of the server, and the type of the server comprises: ordinary servers, GPU servers, and other servers;
(2) the main board control unit of the server sets a main power supply and a slave power supply according to a main power supply and slave power supply relation principle, wherein the main power supply and slave power supply relation principle comprises the following steps: setting the power supply with the minimum address in the power supplies with normal working conditions as a main power supply;
(3) the main power supply sends out a synchronous control signal to the slave power supply, the slave power supply automatically adjusts a current phase control signal of the slave power supply after receiving the synchronous control signal, and a direct current exchanger of the slave power supply adjusts the voltage output to the main board according to the current phase control signal of the slave power supply;
(4) the method comprises the steps that a main power supply obtains the phase of main board current, the current phase modulation signal of the main power supply is adjusted according to the phase of the main board current, and a direct current exchanger of the main power supply adjusts voltage output to a main board according to the current phase control signal of the main power supply;
(5) comparing whether the current phase modulation signal of the master power supply and the current phase modulation signal of the slave power supply are synchronous: if not, S2 is executed again; and if the synchronization is carried out, judging that the power supply load current is balanced.
(6) Further, the main board control unit monitors whether the main power supply is abnormal: if the abnormality occurs, the master power supply and the slave power supply are reset according to the principle of the relation between the master power supply and the slave power supply.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A system for server power load balancing, comprising: the load, and main power supply and slave power supply for the load power supply, the said slave power supply has at least one, set up the first control unit in the said load, said main power supply and slave power supply set up the second control unit and third control circuit, the said second control unit is connected with third control unit; the second control unit of the master power supply is connected to the second control units of the plurality of slave power supplies, respectively.
2. The system for server power load balancing according to claim 1, wherein the second control unit is connected to the first control unit via a current feedback signal line.
3. The system for power supply load balancing of servers, according to claim 1, wherein photoelectric sensors are arranged inside the main power supply and the secondary power supply, input ends of the photoelectric sensors are connected with the second control unit, and output ends of the photoelectric sensors are connected with the third control unit.
4. The system for server power supply load balancing according to claim 1, wherein a direct current converter is arranged inside the main power supply and the auxiliary power supply; the third control unit is connected with the direct current converter through a PWM modulation signal line, and the direct current converter is connected with a load.
5. A method for balancing power supply load of a server is characterized by comprising the following steps:
s1, a main board control unit of a server sets a main power supply and a slave power supply according to a main power supply and slave power supply relation principle;
s2, the master power supply sends out a synchronous control signal to the slave power supply, and the slave power supply automatically adjusts the current phase control signal of the slave power supply after receiving the synchronous control signal;
s3, the main power supply obtains the phase of the main board current, and adjusts the current phase modulation signal of the main power supply according to the phase of the main board current;
s4, comparing whether the current phase modulation signal of the main power supply and the current phase modulation signal of the slave power supply are synchronous:
if not, S2 is executed again;
and if the synchronization is carried out, judging that the power supply load current is balanced.
6. The method of claim 1, wherein the motherboard control unit identifies a server type and an address thereof, and the server type comprises: ordinary servers, GPU servers, and other servers.
7. The method of claim 6, wherein the master-slave power relationship rule comprises: the power supply with the minimum address in the power supplies with normal working conditions is set as a main power supply.
8. The method for server power load balancing according to claim 7, wherein the main board control unit monitors whether a main power supply is abnormal: if the abnormality occurs, the master power supply and the slave power supply are reset according to the principle of the relation between the master power supply and the slave power supply.
9. The method for server power load balancing according to claim 1, wherein the dc switch of the slave power source adjusts the voltage output to the motherboard according to the current phase control signal of the slave power source after the current phase control signal of the slave power source is automatically adjusted after the synchronization control signal is received from the slave power source.
10. The method according to claim 1, wherein after the current phase modulation signal of the main power supply is adjusted according to the phase of the main board current, the dc switch of the main power supply adjusts the voltage output to the main board according to the current phase control signal of the main power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010132982.5A CN111338454B (en) | 2020-02-29 | 2020-02-29 | System and method for balancing server power supply load |
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| CN202010132982.5A CN111338454B (en) | 2020-02-29 | 2020-02-29 | System and method for balancing server power supply load |
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| CN111338454B CN111338454B (en) | 2021-08-03 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243611A (en) * | 1997-02-07 | 2000-02-02 | 西门子公司 | Load balancing of several independently working modules of power supply installation |
| CN1859313A (en) * | 2006-04-30 | 2006-11-08 | 西安交通大学 | Method for realizing two-way load equalizing mechanism in multiple machine servicer system |
| CN101815033A (en) * | 2010-03-12 | 2010-08-25 | 成都市华为赛门铁克科技有限公司 | Method, device and system for load balancing |
| CN101958542A (en) * | 2010-07-09 | 2011-01-26 | 深圳键桥通讯技术股份有限公司 | Method for intelligently balancing load among modules in communication power-supply system |
| CN202495883U (en) * | 2012-02-10 | 2012-10-17 | 徐查庆 | Current sharing controller for direct-current parallel technology of variable frequency generator set |
| CN103491053A (en) * | 2012-06-08 | 2014-01-01 | 北京百度网讯科技有限公司 | UDP load balancing method, UDP load balancing system and UDP load balancing device |
| CN204858974U (en) * | 2015-07-22 | 2015-12-09 | 航天长峰朝阳电源有限公司 | High -power intelligence of high reliability power module that flow equalizes |
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2020
- 2020-02-29 CN CN202010132982.5A patent/CN111338454B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243611A (en) * | 1997-02-07 | 2000-02-02 | 西门子公司 | Load balancing of several independently working modules of power supply installation |
| CN1859313A (en) * | 2006-04-30 | 2006-11-08 | 西安交通大学 | Method for realizing two-way load equalizing mechanism in multiple machine servicer system |
| CN101815033A (en) * | 2010-03-12 | 2010-08-25 | 成都市华为赛门铁克科技有限公司 | Method, device and system for load balancing |
| CN101958542A (en) * | 2010-07-09 | 2011-01-26 | 深圳键桥通讯技术股份有限公司 | Method for intelligently balancing load among modules in communication power-supply system |
| CN202495883U (en) * | 2012-02-10 | 2012-10-17 | 徐查庆 | Current sharing controller for direct-current parallel technology of variable frequency generator set |
| CN103491053A (en) * | 2012-06-08 | 2014-01-01 | 北京百度网讯科技有限公司 | UDP load balancing method, UDP load balancing system and UDP load balancing device |
| CN204858974U (en) * | 2015-07-22 | 2015-12-09 | 航天长峰朝阳电源有限公司 | High -power intelligence of high reliability power module that flow equalizes |
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