CN110908486B - Control method, system and equipment for server multi-phase power supply - Google Patents
Control method, system and equipment for server multi-phase power supply Download PDFInfo
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Abstract
According to the control method, the system and the equipment for the multiphase power supply of the server, the intelligent redundancy control method is adopted to control the conversion process of the MOSFET, so that the MOSFET is effectively prevented from working in a full load or overload state for a long time, the reliability of the whole server is improved, the fault rate of the MOSFET is reduced, and the after-sale maintenance cost of the server is further reduced. Compared with the traditional control mode, the invention effectively reduces the aging of the multiphase power supply system.
Description
Technical Field
The invention relates to the technical field of server power supply, in particular to a method, a system and equipment for controlling server multiphase power supply.
Background
With the rapid development of the server industry, especially the application in the 5G era, the server is required to have larger network throughput and faster data processing speed.
If the computing power of the server is to be improved, the number of servers can be increased to improve the computing power, and a better method is to improve the computing power of a single server and integrate multiple data analysis from a single data, namely to apply a multi-path server. With the increase of the number of processors, the problem of power supply reliability of the processors will come along, and how to effectively improve the power supply reliability of the CPU is imperative.
For a server CPU, because the current required by the server CPU is large, a multiphase MOSFET is required for shunting power supply, and a digital multiphase controller controls the output of PWM signals according to a preset starting sequence. Such as: when the CPU required current is gradually increased, the phase adding sequence is from 1 to N phases. When the CPU required current is gradually reduced, the phase reduction sequence is from N-1 phase.
The traditional control scheme controls the number of working phases of the MOS according to the configured sequence (ascending or descending sequence) according to the feedback voltage and current values collected by the digital multi-phase controller, and the scheme is not the most reliable power supply selection. Because, when the electric energy required by the system is small, the scheme can repeatedly use a certain number of phase MOSFETs, the multiphase MOSFETs are not recycled, and the strain degree is from 1 to N MOSFETs from large to small. Because individual MOSFET works in a full load or overload state for a long time, the failure rate is increased, and the power supply reliability of the whole server is reduced.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a method, a system and a device for controlling a server multiphase power supply, which utilize an intelligent redundant control method to control multiphase MOSFETs so that the multiphase MOSFETs can be organically recycled, thereby avoiding the overstrain of individual MOSFETs. The aging of the server multi-phase power supply system is effectively reduced.
In order to achieve the purpose, the invention is realized by the following technical scheme: a control method for multi-phase power supply of a server comprises the following steps:
s1: the digital multi-phase controller calculates the phase number of the MOSFET required to be enabled according to the collected feedback voltage and current values;
s2: running a preset intelligent redundancy control algorithm according to the number of phases of the MOSFETs to be enabled, and formulating a MOSFET allocation scheme;
s3: and issuing the distribution scheme of the MOSFET to a PWM driver to control the specific PWM to be switched on and switched off.
Further, the step S1 specifically includes:
the controller acquires the converged voltage and current and then obtains the required power by performing multiplication operation;
and calculating the number of phases of the required enabling MOSFET according to the required power and the maximum power supply power of each phase of MOSFET.
Further, the preset intelligent redundancy control algorithm specifically comprises:
the digital multi-phase controller takes preset unit time as a time reference, a clock signal is set by a timer, and the running sequence of the MOSFET is replaced once every unit time.
Further, the preset intelligent redundancy control algorithm comprises:
acquiring a time reference, and timing by using a timer;
setting an int type flag, wherein the threshold n of the flag is the same as the number of phases of the MOSFET to be enabled;
when the timing time passes through the 1 st time reference, setting the flag value to be 1, and sequentially setting the running sequence of the configured MOSFETs to be 1, 2, 3 … … n or n, n-1 … … 1, wherein 1, 2, 3 … … n are the preset numbers of the MOSFETs; when the timing time passes the 2 nd time reference, the flag value is added with one, and the running sequence of the configured MOSFETs is sequentially 2, 3, 4 … … n-1, n, 1 or 1, n-1, n-2 … … 3 and 2;
when the timing time passes through the nth time reference, setting the flag value as n, and sequentially setting the running sequence of the configured MOSFETs as n, 1, 2 … … n-1 or n-1, n-2 … … 2, 1, n, wherein 1, 2, 3 … … n are the preset numbers of the MOSFETs;
when the timing time passes through the (n + 1) th time reference, setting the flag value to be 1, and sequentially setting the running sequence of the configured MOSFETs to be 1, 2 and 3 … … n or n and n-1 … … 1, wherein 1, 2 and 3 … … n are preset numbers of the MOSFETs; one cycle per nth time reference.
Further, the obtaining a time reference and using a timer to time comprises:
writing preset unit time into the digital multi-phase controller as a time reference, and if the digital multi-phase controller has a timer function, timing by using the timer; and if not, the digital multi-phase controller acquires network time through the BMC to time.
Further, the preset intelligent redundancy control algorithm further comprises:
in the MOSFET conversion process, if all phase MOSFETs are in operation during the conversion period, the conversion is waited; when the idle MOSFET exists, the conversion is directly carried out; during switching, the idle MOSFET is operated first, and then the MOSFET needing to be switched off is forbidden.
Correspondingly, the invention also discloses a control system for the multi-phase power supply of the server, which comprises the following components:
the phase number calculation unit is used for calculating the phase number of the MOSFET required to be enabled by the digital multi-phase controller according to the collected feedback voltage and current values;
the distribution scheme generating unit is used for operating a preset intelligent redundancy control algorithm according to the number of phases of the MOSFET to be enabled and formulating a distribution scheme of the MOSFET;
and the distribution execution unit is used for transmitting the distribution scheme of the MOSFET to the PWM driver to control the specific PWM to be switched on or switched off.
Correspondingly, the invention also discloses a control device for multi-phase power supply of the server, which comprises:
a memory for storing a computer program;
a processor for implementing the steps of the control method for multi-phase power supply of the server according to any one of the above when executing the computer program.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a control method, a system and equipment for multiphase power supply of a server, wherein an intelligent redundancy control method is adopted to control the conversion process of an MOSFET, so that the MOSFET is effectively prevented from working in a full load or overload state for a long time, the reliability of the whole server is improved, the failure rate of the MOSFET is reduced, and the after-sale maintenance cost of the server is further reduced. Compared with the traditional control mode, the invention effectively reduces the aging of the multiphase power supply system.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is a system block diagram of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
The first embodiment is as follows:
the control method for the multiphase power supply of the server shown in fig. 1 comprises the following steps:
s1: and the digital multi-phase controller calculates the number of phases of the MOSFET required to be enabled according to the collected feedback voltage and current values. The controller acquires the converged voltage and current and then obtains the required power by performing multiplication operation; then, the number of phases of the desired enabled MOSFETs is calculated from the desired power and the maximum supply power for each phase of the MOSFETs.
S2: and operating a preset intelligent redundancy control algorithm according to the number of phases of the MOSFETs to be enabled, and formulating a distribution scheme of the MOSFETs. The preset intelligent redundancy control algorithm specifically comprises the following steps: the digital multi-phase controller takes preset unit time as a time reference, a clock signal is set by a timer, and the running sequence of the MOSFET is replaced once every unit time.
The preset intelligent redundancy control algorithm comprises the following steps:
acquiring a time reference, and timing by using a timer; writing preset unit time into the digital multi-phase controller as a time reference, and if the digital multi-phase controller has a timer function, timing by using the timer; and if not, the digital multi-phase controller acquires network time through the BMC to time.
An int type flag is set, and the threshold n of the flag is the same as the number of phases of the MOSFET required to be enabled.
When the timing time passes through the 1 st time reference, setting the flag value to be 1, and sequentially setting the running sequence of the configured MOSFETs to be 1, 2, 3 … … n or n, n-1 … … 1, wherein 1, 2, 3 … … n are the preset numbers of the MOSFETs; when the timing time passes the 2 nd time reference, the flag value is added with one, and the running sequence of the configured MOSFETs is sequentially 2, 3, 4 … … n-1, n, 1 or 1, n-1, n-2 … … 3 and 2; when the timing time passes through the nth time reference, setting the flag value as n, and sequentially setting the running sequence of the configured MOSFETs as n, 1, 2 … … n-1 or n-1, n-2 … … 2, 1, n, wherein 1, 2, 3 … … n are the preset numbers of the MOSFETs; when the timing time passes through the (n + 1) th time reference, setting the flag value to be 1, and sequentially setting the running sequence of the configured MOSFETs to be 1, 2 and 3 … … n or n and n-1 … … 1, wherein 1, 2 and 3 … … n are preset numbers of the MOSFETs; one cycle per nth time reference.
In addition, in the process of MOSFET conversion, if all phase MOSFETs are in operation during the conversion, the conversion is waited; when the idle MOSFET exists, the conversion is directly carried out; during switching, the idle MOSFET is operated first, and then the MOSFET needing to be switched off is forbidden.
S3: and issuing the distribution scheme of the MOSFET to a PWM driver to control the specific PWM to be switched on and switched off.
Example two:
compared with the first embodiment, the preset unit time of the first embodiment is 1 day, so the time reference is set to be 1 day. Therefore, the intelligent redundancy control algorithm of the present embodiment includes:
writing the preset unit time of 1 day into a digital multi-phase controller as a time reference, and timing by using a timer built in the digital multi-phase controller; and if not, the digital multi-phase controller acquires network time through the BMC to time.
An int type flag is set, and the threshold n of the flag is the same as the number of phases of the MOSFET required to be enabled.
On the first day, setting a flag value to be 1, and sequentially setting the running sequence of the configured MOSFETs to be 1, 2, 3 … … n or n, n-1 … … 1, wherein 1, 2 and 3 … … n are preset numbers of the MOSFETs; the next day, the flag value is increased by one, and the running sequence of the configured MOSFETs is 2, 3, 4 … … n-1, n and 1 or 1, n-1, n-2 … … 3 and 2 in sequence; on the nth day, setting the flag value as n, and sequentially setting the running sequence of the configured MOSFETs as n, 1, 2 … … n-1 or n-1, n-2 … … 2, 1 and n, wherein 1, 2 and 3 … … n are preset numbers of the MOSFETs; on the (n + 1) th day, setting the flag value to be 1, and sequentially setting the running sequence of the configured MOSFETs to be 1, 2 and 3 … … n or n and n-1 … … 1, wherein 1, 2 and 3 … … n are preset numbers of the MOSFETs; every n days elapsed is a cycle.
Correspondingly, as shown in fig. 2, the present invention also discloses a control system for multi-phase power supply of a server, comprising:
the phase number calculation unit is used for calculating the phase number of the MOSFET required to be enabled by the digital multi-phase controller according to the collected feedback voltage and current values;
the distribution scheme generating unit is used for operating a preset intelligent redundancy control algorithm according to the number of phases of the MOSFET to be enabled and formulating a distribution scheme of the MOSFET;
and the distribution execution unit is used for transmitting the distribution scheme of the MOSFET to the PWM driver to control the specific PWM to be switched on or switched off.
Correspondingly, the invention also discloses a control device for multi-phase power supply of the server, which comprises:
a memory for storing a computer program;
a processor for implementing the steps of the control method for multi-phase power supply of the server according to any one of the above when executing the computer program.
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied in the form of a software product, where the computer software product is stored in a storage medium, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like, and the storage medium can store program codes, and includes instructions for enabling a computer terminal (which may be a personal computer, a server, or a second terminal, a network terminal, and the like) to perform all or part of the steps of the method in the embodiments of the present invention. The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.
In the embodiments provided by the present invention, it should be understood that the disclosed system, system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, systems or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit.
Similarly, each processing unit in the embodiments of the present invention may be integrated into one functional module, or each processing unit may exist physically, or two or more processing units are integrated into one functional module.
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
Claims (4)
1. A control method for multi-phase power supply of a server is characterized by comprising the following steps:
s1: the digital multi-phase controller calculates the phase number of the MOSFET required to be enabled according to the collected feedback voltage and current values;
s2: running a preset intelligent redundancy control algorithm according to the number of phases of the MOSFETs to be enabled, and formulating a MOSFET allocation scheme;
s3: issuing the distribution scheme of the MOSFET to a PWM driver to control the specific PWM to be switched on and switched off;
the step S1 specifically includes:
the controller acquires the converged voltage and current and then obtains the required power by performing multiplication operation;
calculating the number of phases of the MOSFET required to be enabled according to the required power and the maximum power supply power of each phase of MOSFET;
the preset intelligent redundancy control algorithm specifically comprises the following steps:
the digital multi-phase controller takes preset unit time as a time reference, a clock signal is set by a timer, and the running sequence of the MOSFET is replaced once after every unit time;
the preset intelligent redundancy control algorithm comprises the following steps:
acquiring a time reference, and timing by using a timer;
setting an int type flag, wherein the threshold n of the flag is the same as the number of phases of the MOSFET to be enabled;
when the timing time passes through the 1 st time reference, setting the flag value to be 1, and sequentially setting the running sequence of the configured MOSFETs to be 1, 2, 3 … … n or n, n-1 … … 1, wherein 1, 2, 3 … … n are the preset numbers of the MOSFETs;
when the timing time passes the 2 nd time reference, the flag value is added with one, and the running sequence of the configured MOSFETs is sequentially 2, 3, 4 … … n-1, n, 1 or 1, n-1, n-2 … … 3 and 2;
when the timing time passes through the nth time reference, setting the flag value as n, and sequentially setting the running sequence of the configured MOSFETs as n, 1, 2 … … n-1 or n-1, n-2 … … 2, 1, n, wherein 1, 2, 3 … … n are the preset numbers of the MOSFETs;
when the timing time passes through the (n + 1) th time reference, setting the flag value to be 1, and sequentially setting the running sequence of the configured MOSFETs to be 1, 2 and 3 … … n or n and n-1 … … 1, wherein 1, 2 and 3 … … n are preset numbers of the MOSFETs; one cycle per nth time reference.
2. The method for controlling the multiphase power supply of the server according to claim 1, wherein the obtaining a time reference and using a timer to time comprises:
writing preset unit time into the digital multi-phase controller as a time reference, and if the digital multi-phase controller has a timer function, timing by using the timer; and if not, the digital multi-phase controller acquires network time through the BMC to time.
3. The method for controlling the multiphase power supply of the server according to claim 1, wherein the preset intelligent redundancy control algorithm further comprises:
in the MOSFET conversion process, if all phase MOSFETs are in operation during the conversion period, the conversion is waited; when the idle MOSFET exists, the conversion is directly carried out; during switching, the idle MOSFET is operated first, and then the MOSFET needing to be switched off is forbidden.
4. A control device for multiphase power supply of a server, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method for controlling the multiphase power supply of the server according to any one of claims 1 to 3 when executing the computer program.
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| CN102570967A (en) * | 2010-11-19 | 2012-07-11 | 通用电气公司 | Low-inductance, high-efficiency induction machine and method of making same |
| CN105183124A (en) * | 2015-09-25 | 2015-12-23 | 浪潮电子信息产业股份有限公司 | Method for optimizing polyphase power source efficiency of server CPU in real time |
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| US6567922B1 (en) * | 2000-04-21 | 2003-05-20 | Hsiu-Mei Feng | Pulse type activating system for power supply |
| CN101753001B (en) * | 2009-12-23 | 2012-02-29 | 中国电力科学研究院 | Method for synchronously switching trigger timing of semiconductor valves |
| CN104571465A (en) * | 2015-01-22 | 2015-04-29 | 山东超越数控电子有限公司 | Design method for achieving CPU (Central Processing Unit) power supply phase dynamic adjustment |
| CN107404249B (en) * | 2017-09-20 | 2023-06-30 | 山东理工大学 | Low-leakage-current grid-connected inverter circuit and control method thereof |
| EP3503365B1 (en) * | 2017-12-22 | 2020-06-10 | GE Energy Power Conversion Technology Limited | Method and device for controlling mosfet switching modules |
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| CN102570967A (en) * | 2010-11-19 | 2012-07-11 | 通用电气公司 | Low-inductance, high-efficiency induction machine and method of making same |
| CN105183124A (en) * | 2015-09-25 | 2015-12-23 | 浪潮电子信息产业股份有限公司 | Method for optimizing polyphase power source efficiency of server CPU in real time |
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