CN113422425B - Modular UPS (uninterrupted Power supply) sleep control method and device and modular UPS system - Google Patents

Modular UPS (uninterrupted Power supply) sleep control method and device and modular UPS system Download PDF

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CN113422425B
CN113422425B CN202110626667.2A CN202110626667A CN113422425B CN 113422425 B CN113422425 B CN 113422425B CN 202110626667 A CN202110626667 A CN 202110626667A CN 113422425 B CN113422425 B CN 113422425B
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modular ups
current
sleep
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power module
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CN113422425A (en
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苏宁焕
苏先进
卢雄伟
陈海飞
陈威龙
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Kehua Data Co Ltd
Zhangzhou Kehua Electric Technology Co Ltd
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Kehua Data Co Ltd
Zhangzhou Kehua Electric Technology Co Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
    • H02J9/007—Detection of the absence of a load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
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  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The invention provides a modular UPS sleep control method and device and a modular UPS system, wherein the method is applied to a modular UPS comprising a plurality of power modules, and comprises the following steps: acquiring output current and output voltage of a modular UPS in real time, and determining the current load capacity of the modular UPS according to the output current and the output voltage; the method comprises the steps of obtaining the safe load capacity and the current online module number of the modular UPS, and determining the current working load rate and the current dormancy load rate of the modular UPS based on the safe load capacity, the current online module number and the current load capacity; and determining the number of current sleep modules of the modular UPS according to the current working load rate and the current sleep load rate, and performing sleep control on the power modules of the modular UPS based on the number of the current sleep modules. The invention can improve the efficiency of the modularized UPS and reduce the total loss.

Description

Modular UPS (uninterrupted Power supply) sleep control method and device and modular UPS system
Technical Field
The invention belongs to the technical field of UPS (uninterrupted power supply), and particularly relates to a modular UPS (uninterrupted power supply) sleep control method and device and a modular UPS system.
Background
A UPS (Uninterruptible Power Supply) is a device that can continuously Supply Power in place of commercial Power when the commercial Power fails. The UPS greatly improves the reliability of power utilization of users, and avoids user loss caused by power failure.
In recent years, modular UPSs have become more and more popular due to their advantages such as flexibility in configuration. The modular UPS is provided with a plurality of power modules, and all the power modules perform the same function, for example, all the power modules perform the function of supplying power to the utility power. However, in practical applications, the load amount corresponding to the modular UPS may be small, or the load may be large or small when different time periods exist. If all power modules in the modular UPS are operated for a long time, the modular UPS is operated in a low-efficiency state for a long time, which results in a large total loss.
Disclosure of Invention
The invention aims to provide a modular UPS sleep control method and device and a modular UPS system, so as to solve the technical problem that the total loss is large because a modular UPS works in a low-efficiency state for a long time in the prior art.
In order to achieve the above object, the present invention provides a sleep control method for a modular UPS, the method is applied to a modular UPS including a plurality of power modules, and the method includes:
acquiring output current and output voltage of the modular UPS in real time, and determining the current load capacity of the modular UPS according to the output current and the output voltage;
the method comprises the steps of obtaining the safe load capacity and the current online module number of the modular UPS, and determining the current working load rate and the current dormancy load rate of the modular UPS based on the safe load capacity, the current online module number and the current load capacity;
and determining the number of current sleep modules of the modular UPS according to the current working load rate and the current sleep load rate, and performing sleep control on the power modules of the modular UPS based on the number of the current sleep modules.
Optionally, the current work load rate and the current sleep load rate of the modular UPS are calculated according to the following formulas:
Figure BDA0003101474450000021
wherein ρ 1 Is the current working load rate, rho, of the modular UPS 2 Is the current sleep load rate, S, of the modular UPS At present Current capacity, S, of modular UPS Secure Safe capacity for modular UPS, N On-line Is the current online module number, S, of the modular UPS Module Is modularizedPower for each power module in the UPS.
Optionally, determining the number of current sleep modules of the modular UPS according to the current work load rate and the current sleep load rate includes:
if the current work load rate is smaller than the preset awakening capacity, increasing the number of current online modules of the modular UPS by d1; wherein d1 is a preset wake-up step length;
if the current dormancy load rate is greater than the preset dormancy capacity, reducing the current online module number of the modular UPS by d2; wherein d2 is a preset sleep step length;
repeatedly adjusting the number of current online modules of the modular UPS until the current working load rate is not less than the preset awakening capacity and the current dormancy load rate is not more than the preset dormancy capacity;
a current number of sleep modules of the modular UPS is determined based on the adjusted current number of online modules of the modular UPS.
Optionally, before performing sleep control on the power modules of the modular UPS based on the current sleep module number, the sleep control method of the modular UPS further includes:
determining the number of cold sleep modules and the number of hot sleep modules of the modular UPS according to the number of the current sleep modules and a preset sleep control factor;
correspondingly, the performing sleep control on the power module of the modular UPS based on the current sleep module number includes:
performing cold sleep control or hot sleep control on power modules of a modular UPS based on the number of cold sleep modules and the number of hot sleep modules;
the cold sleep control refers to the control target power module being in a fully off state, and the hot sleep control refers to the control target power module being in a partially off state.
Optionally, the number of cold sleep modules and the number of hot sleep modules of the modular UPS are calculated according to the following formula:
Figure BDA0003101474450000031
wherein N is Rest on the table Number of currently dormant modules for a modular UPS, N Heat generation Number of hot sleep modules for modular UPS, N Cold The number of cold sleep modules of the modular UPS is K, the K is a preset sleep control factor, the K belongs to (0, 1), and the integer operation is represented by | | l.
Optionally, performing sleep control on the power modules of the modular UPS based on the current sleep module number includes:
numbering each power module according to the physical position of each power module in the modular UPS;
selecting N from each power module according to the serial number sequence of each power module every preset duty cycle Rest on the table A power module and to said N Laying down Each power module sends a sleep control command.
Optionally, the performing cold sleep control or hot sleep control on the power module of the modular UPS based on the number of cold sleep modules and the number of hot sleep modules includes:
numbering each power module according to the physical position of each power module in the modular UPS;
selecting N from each power module according to the serial number sequence of each power module every preset duty cycle Heat generation +N Cooling by cooling A power module, and N to Heat generation Each power module sends a hot sleep control command to N Cold Each power module sends a cold sleep control command.
Optionally, N is selected from each power module according to the numbering sequence of each power module Rest on the table A power module comprising:
selecting continuous N from each power module according to the serial number sequence of each power module Laying down The power modules or N arranged at intervals are selected from the power modules according to the numbering sequence of the power modules Rest on the table And a power module.
In another aspect of the present invention, a device for controlling a sleep mode of a modular UPS is provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for controlling a sleep mode of a modular UPS when executing the computer program.
In still another aspect of the present invention, there is also provided a modular UPS system including:
modular UPS and modular UPS sleep control apparatus as described above;
the modular UPS includes a plurality of power modules, and the modular UPS sleep control apparatus is communicatively coupled to each of the power modules in the modular UPS.
The modular UPS dormancy control method and device and the modular UPS system have the advantages that:
different from the scheme of operating all power modules in the prior art, the invention calculates the current load capacity of the modular UPS according to the output current and the output voltage of the modular UPS, determines the number of the power modules needing to be dormant, namely the number of the current dormant modules according to the current load capacity, and finally performs dormancy control on each power module of the modular UPS based on the calculated number of the current dormant modules, thereby avoiding the modular UPS being in a low-efficiency state for a long time, improving the efficiency of the modular UPS and reducing the total loss.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for controlling a sleep mode of a modular UPS according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of a power module according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating sleep control according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a modular UPS sleep control apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a modular UPS system according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a sleep control method for a modular UPS according to an embodiment of the present invention, the sleep control method for a modular UPS including a plurality of power modules, including:
s101: the output current and the output voltage of the modular UPS are collected in real time, and the current load capacity of the modular UPS is determined according to the output current and the output voltage.
In this embodiment, the output current and the output voltage of the modular UPS may be collected in real time, and the real-time output power of the modular UPS is determined according to the output current and the output voltage, so as to determine the current load capacity of the modular UPS.
S102: the method comprises the steps of obtaining the safe load capacity and the current online module number of the modular UPS, and determining the current working load rate and the current dormancy load rate of the modular UPS based on the safe load capacity, the current online module number and the current load capacity.
In this embodiment, the preset safe load amount of the modular UPS and the number of the power modules (corresponding to the number of the current online modules) of the modular UPS currently online may be obtained, and the current working load rate and the current sleep load rate of the modular UPS may be determined based on the preset safe load amount and the number of the current online modules in combination with the calculated current load amount.
S103: and determining the number of current sleep modules of the modular UPS according to the current working load rate and the current sleep load rate, and performing sleep control on the power modules of the modular UPS based on the number of the current sleep modules.
In this embodiment, iterative computation may be performed based on the current work load rate and the current hibernation load rate to obtain the number of power modules that the modular UPS needs to hibernate, that is, the current hibernation module number of the modular UPS, and finally, the power modules of the current hibernation module number are selected from the modular UPS to perform hibernation control.
Optionally, as a specific implementation manner of the sleep control method for the modular UPS provided by the embodiment of the present invention, the current working load rate and the current sleep load rate of the modular UPS are calculated according to the following formulas:
Figure BDA0003101474450000061
where ρ is 1 Is the current working load rate, rho, of the modular UPS 2 Is the current dormancy load rate, S, of the modular UPS At present Current capacity, S, of modular UPS Secure Safe capacity for modular UPS, N On-line Is the current online module number, S, of the modular UPS Module For the power of each power module in the modular UPS.
Optionally, as a specific implementation manner of the sleep control method for a modular UPS provided by the embodiment of the present invention, determining the number of current sleep modules of the modular UPS according to the current work load rate and the current sleep load rate includes:
if the current workload rate ρ 1 Less than a preset wake-up capacity m 1 Then let the current online module number N of the modular UPS On-line Increasing d1. Also make N instantly On-line (New) = N On-line + d1. Wherein d1 is a preset wake-up step length.
If the current dormancy load factor rho 2 Greater than a preset sleep capacity m 2 Then the current number of online modules of the modular UPS is decreased by d2. Also make N immediately On-line (New) = N On-line -d2. Wherein d2 is a preset sleep step length.
And repeatedly adjusting the number of the current online modules of the modular UPS until the current work load rate is not less than the preset awakening capacity and the current dormancy load rate is not more than the preset dormancy capacity. That is, when ρ 1 ≥m 1 And ρ 2 ≤m 2 Then let N On-line (New) = N On-line 。
Determining a current number of dormant modules of the modular UPS based on the adjusted current number of online modules of the modular UPS.
In this embodiment, the total number of power modules of the modular UPS is used to subtract the adjusted current number of online modules, so as to obtain the current number of sleep modules of the modular UPS.
In this embodiment, the preset wake-up step and the preset sleep step may be the same or different, and are not limited herein. The preset wake-up capacity is smaller than the preset sleep capacity.
Optionally, as a specific implementation manner of the sleep control method for a modular UPS provided in an embodiment of the present invention, before performing sleep control on power modules of a modular UPS based on the current number of sleep modules, the sleep control method for a modular UPS further includes:
and determining the number of cold sleep modules and the number of hot sleep modules of the modular UPS according to the number of the current sleep modules and a preset sleep control factor.
Correspondingly, the power module of the modular UPS is sleep controlled based on the current number of sleep modules, including:
and performing cold dormancy control or hot dormancy control on the power modules of the modular UPS based on the number of cold dormancy modules and the number of hot dormancy modules.
The cold sleep control refers to the control target power module being in a completely off state, and the hot sleep control refers to the control target power module being in a partially off state.
In this embodiment, the structure of the power module in the modular UPS may refer to fig. 2, where the power module mainly includes a rectification AC/DC module, an inversion DC/AC module, an input relay S1, and an output relay S2, and on this basis, the power module performs cold sleep control, that is, sends a cold sleep control instruction to the power module, and at this time, the power module receiving the cold sleep control instruction may control S1 and S2 to be disconnected, and the AC/DC and the DC/AC stop operating, so that the module is in a cold sleep state. Similarly, the power module is subjected to the hot sleep control, that is, a hot sleep control instruction is sent to the power module, at this time, the power module receiving the hot sleep control instruction closes the DC/AC in the working state, and S2 is still in the closed state, so that the power module is in the hot sleep backup state.
Optionally, in a possible implementation manner of the embodiment of the present invention, a work instruction may be further sent to the power module of the modular UPS, and the power module that receives the work instruction may sequentially control S1 closing, AC/DC operation, S2 closing, and DC/AC operation, so that the inverter is in a normal inverter output state to share the power of the modular UPS.
In this embodiment, the embodiment of the present invention employs centralized sleep control and distributed execution of control instructions, which can effectively improve the efficiency of sleep control, and on this basis, the embodiment further divides sleep into cold sleep and hot sleep, which improves the sleep depth, thereby further reducing loss and improving the efficiency of the modular UPS.
Optionally, as a specific implementation manner of the sleep control method for a modular UPS provided in the embodiment of the present invention, the number of cold sleep modules and the number of hot sleep modules of the modular UPS are calculated according to the following formulas:
Figure BDA0003101474450000081
wherein, N Rest on the table Number of currently dormant modules for a modular UPS, N Heat generation Number of hot sleep modules for modular UPS, N Cold The number of the cold sleep modules of the modular UPS is K, which is a preset sleep control factor, wherein K belongs to (0, 1), and | | represents the rounding operation.
Among them, K is preferably in the range of 0.4 to 0.6.
Optionally, as a specific implementation manner of the sleep control method for a modular UPS provided in an embodiment of the present invention, performing sleep control on power modules of the modular UPS based on the current number of sleep modules includes:
and numbering each power module according to the physical position of each power module in the modular UPS.
Selecting N from each power module according to the serial number sequence of each power module every preset duty cycle Rest on the table A power module, and to N Rest on the table Each power module sends a sleep control command.
In this embodiment, consecutive N may be selected from each power module according to the numbering sequence of each power module Rest on the table A power module. For example (T is a preset duty cycle, assuming that the modular UPS contains 10 power modules):
s11: at the moment t, the power modules 1,2, 3 and 4 are in a working state, and the rest power modules are in a dormant state.
S12: at the time of T + T, the power modules 2, 3, 4 and 5 are in a working state, and the rest of the power modules are in a dormant state.
S13: at the time of T +2T, the power modules 3, 4, 5 and 6 are in a working state, and the rest of the power modules are in a dormant state.
S14: 8230and so on.
In this embodiment, N arranged at intervals may also be selected from each power module according to the numbering sequence of each power module Rest on the table And a power module. For example (T is a preset duty cycle, assuming that the modular UPS contains 10 power modules):
s21: at time t, the power modules 1, 3, 5 and 7 are in a working state, and the rest of the power modules are in a dormant state.
S22: at the moment of T + T, the power modules 2, 4, 6 and 8 are in a working state, and the rest power modules are in a dormant state.
S23: at the time of T +2T, the power modules 3, 5, 7 and 9 are in a working state, and the rest of the power modules are in a dormant state.
S24: at the time of T +3T, the power modules 4, 6, 8 and 10 are in the working state, and the rest of the power modules are in the sleep state.
S25: at the time of T +4T, the power modules 5, 7, 9 and 1 are in a working state, and the rest of the power modules are in a dormant state.
S26: at the moment of T +5T, the power modules 6, 8, 10 and 2 are in a working state, and the rest power modules are in a dormant state.
S27: 8230and so on.
In this embodiment, if N is selected and arranged at intervals Rest on the table The power modules can also adjust the preset duty cycle according to the size of the selection interval. For example, if the interval of each selected dormant power module is large, a large duty cycle may be selected (that is, the duty cycle is adjusted to be large), and if the interval of each selected dormant power module is small, a small duty cycle may be selected (that is, the duty cycle is adjusted to be small), so as to ensure heat dissipation.
In this embodiment, each power module adopts a duty-cycling strategy, so that the aging rates of all the power modules can be balanced, and the service life of the equipment can be prolonged.
Optionally, as a specific implementation manner of the sleep control method for a modular UPS provided in an embodiment of the present invention, performing cold sleep control or hot sleep control on a power module of the modular UPS based on the number of cold sleep modules and the number of hot sleep modules includes:
each power module is numbered according to its physical location in the modular UPS.
Selecting N from each power module according to the serial number sequence of each power module every preset duty cycle Heat generation +N Cold A power module, and N to Heat generation Each power module sends a hot sleep control command to N Cooling by cooling Each power module sends a cold sleep control command.
In this embodiment, referring to fig. 3, fig. 3 is a schematic diagram of a cold and hot sleep control. Wherein, the sleep control flow is as follows (T is a preset duty cycle, and the serial number of each power module of the modular UPS is 1,2.. N):
s31: time t, module 1,2 work In the working state, module N work +1...N work +N Heat generation In a hot sleep state, module N work +N Heat generation N is in a cold sleep state.
S32: at time T + T, module N work +1 switching to the operating state, block N work +N Heat generation +1 switches to a hot sleep state and module 1 switches to a cold sleep state.
S33: at the moment of T +2T, on the basis of the state of the previous step, the module N work +2 switching to the operating state, block N work +N Heat generation +2 switches to a hot sleep state and module 2 switches to a cold sleep state.
S34: by analogy, sequential rest states are sequentially realized according to the time n x T.
Referring to fig. 4, fig. 4 is a schematic block diagram of a modular UPS sleep control apparatus according to an embodiment of the present invention. The modular UPS sleep control apparatus 400 in the present embodiment as shown in fig. 4 may include: one or more processors 401, one or more input devices 402, one or more output devices 403, and one or more memories 404. The processor 401, the input device 402, the output device 403, and the memory 404 are in communication with each other via a communication bus 405. The memory 404 is used to store a computer program comprising program instructions. Processor 401 is operative to execute program instructions stored in memory 404. Wherein the processor 401 is configured to invoke program instructions to execute the steps in the above-described method embodiments.
It should be understood that, in the embodiments of the present invention, the Processor 401 may be a Central Processing Unit (CPU), and the Processor may also be other general-purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The input device 402 may include a touch pad, a fingerprint sensor (for collecting fingerprint information of a user and direction information of the fingerprint), a microphone, etc., and the output device 403 may include a display (LCD, etc.), a speaker, etc.
The memory 404 may include a read-only memory and a random access memory, and provides instructions and data to the processor 401. A portion of the memory 404 may also include non-volatile random access memory. For example, the memory 404 may also store device type information.
In a specific implementation manner, the processor 401, the input device 402, and the output device 403 described in the embodiment of the present invention may execute the implementation manners described in the embodiments of the modular UPS sleep control method provided in the embodiment of the present invention.
Referring to fig. 5, fig. 5 is a schematic block diagram of a modular UPS system according to an embodiment of the present invention. A modular UPS501 and the modular UPS sleep control apparatus 400 described above.
The modular UPS501 includes a plurality of power modules, and the modular UPS sleep control apparatus 400 is communicatively coupled to each of the power modules in the modular UPS 501.
In this embodiment, the apparatus 400 may be used as a monitoring unit to implement sleep control of each power module in the modular UPS 501. Optionally, the modular UPS501 may further include a bypass module having a function similar to that of the power module, and other common modules in the modular UPS, besides the power module, and thus, the description thereof is omitted.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. A method for sleep control of a modular UPS, the method being applied to a modular UPS comprising a plurality of power modules, the method comprising:
acquiring output current and output voltage of the modular UPS in real time, and determining the current load capacity of the modular UPS according to the output current and the output voltage;
the method comprises the steps of obtaining the safe load capacity and the current online module number of the modular UPS, and determining the current working load rate and the current dormancy load rate of the modular UPS based on the safe load capacity, the current online module number and the current load capacity;
determining the number of current sleep modules of the modular UPS according to the current working load rate and the current sleep load rate, and performing sleep control on power modules of the modular UPS based on the number of the current sleep modules;
wherein the sleep control of the power modules of the modular UPS based on the current number of sleep modules comprises:
numbering each power module according to the physical position of each power module in the modular UPS;
selecting N from each power module according to the serial number sequence of each power module every preset duty cycle Laying down A power module and to said N Laying down Each power module sends a sleep control command.
2. The method of claim 1, wherein the current operating load rate and the current sleep load rate of the modular UPS are calculated according to the following equations:
Figure FDA0003919975520000011
wherein ρ 1 Is the current working load rate, rho, of the modular UPS 2 Is the current dormancy load rate, S, of the modular UPS At present For the current capacity of the modular UPS, S Secure Safe capacity for modular UPS, N On-line Is the current online module number, S, of the modular UPS Module For the power of each power module in the modular UPS.
3. The method of claim 1, wherein determining a current number of sleep modules of a modular UPS based on the current operational load rate and the current sleep load rate comprises:
if the current work load rate is smaller than the preset awakening capacity, increasing the number of current online modules of the modular UPS by d1; wherein d1 is a preset wake-up step length;
if the current dormancy load rate is greater than the preset dormancy capacity, reducing the current online module number of the modular UPS by d2; wherein d2 is a preset sleep step length;
repeatedly adjusting the number of current online modules of the modular UPS until the current working load rate is not less than the preset awakening capacity and the current dormancy load rate is not more than the preset dormancy capacity;
a current number of sleep modules of the modular UPS is determined based on the adjusted current number of online modules of the modular UPS.
4. The method of sleep control for a modular UPS of claim 1, further comprising, prior to sleep control of power modules of the modular UPS based on the current number of sleep modules:
determining the number of cold sleep modules and the number of hot sleep modules of the modular UPS according to the number of the current sleep modules and a preset sleep control factor;
correspondingly, the performing sleep control on the power module of the modular UPS based on the current sleep module number includes:
performing cold sleep control or hot sleep control on power modules of a modular UPS based on the number of cold sleep modules and the number of hot sleep modules;
the cold sleep control refers to the control target power module being in a fully off state, and the hot sleep control refers to the control target power module being in a partially off state.
5. The modular UPS sleep control method of claim 4, wherein the number of cold sleep modules and the number of hot sleep modules of the modular UPS are calculated according to the following equation:
Figure FDA0003919975520000021
wherein, N Laying down Number of currently dormant modules for a modular UPS, N Heat generation Number of thermal sleep modules for a modular UPS, N Cooling by cooling The number of the cold sleep modules of the modular UPS is K, which is a preset sleep control factor, wherein K belongs to (0, 1), and | | represents the rounding operation.
6. The method of claim 4, wherein the performing cold sleep control or hot sleep control of power modules of a modular UPS based on the number of cold sleep modules and the number of hot sleep modules comprises:
numbering each power module according to the physical position of each power module in the modular UPS;
selecting N from each power module according to the serial number sequence of each power module every preset duty cycle Heat generation +N Cooling by cooling A power module, and N to Heat generation Each power module sends a hot sleep control command to N Cooling by cooling Each power module sends a cold sleep control command.
7. The method of claim 1, wherein the selecting N from each power module is in accordance with a numbering order of each power module Laying down A power module comprising:
selecting continuous N from each power module according to the serial number sequence of each power module Rest on the table Each power module or N arranged at intervals are selected from each power module according to the serial number sequence of each power module Laying down A power module.
8. A modular UPS sleep control apparatus comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor when executing the computer program implements the steps of the method of any of claims 1 to 7.
9. A modular UPS system, comprising:
a modular UPS and a modular UPS sleep control apparatus according to claim 8;
the modular UPS includes a plurality of power modules, and the modular UPS sleep control apparatus is communicatively coupled to each of the power modules in the modular UPS.
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