CN119200799A - Method and device for adjusting load rate of power supply module - Google Patents
Method and device for adjusting load rate of power supply module Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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- G06F1/26—Power supply means, e.g. regulation thereof
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- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
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Abstract
本申请实施例提供了一种电源供应模组的负载率的调节方法及装置，涉及计算机领域，其中，该方法包括：在运行状态下，检测M个电源供应模组的输出端的金属连接板和电路板铜箔之间的温度差，得到M个温度差，其中，金属连接板与电路板相连接，金属连接板用于将电源供应模组与电源分配模组相连接，电源分配模组用于提供电源给机柜内的负载；根据温度差和电源供应模组的负载率之间的关联关系，分别确定各个电源供应模组的当前负载率，得到M个当前负载率；根据目标负载率对M个当前负载率进行调节，得到M个更新后负载率。通过本申请，解决了相关技术中使用外接电源管理控制器对电源供应模组的负载率进行侦测和调整的复杂度和成本较高的问题。
The embodiment of the present application provides a method and device for adjusting the load rate of a power supply module, which relates to the field of computers, wherein the method comprises: in a running state, detecting the temperature difference between the metal connecting plate at the output end of M power supply modules and the copper foil of the circuit board to obtain M temperature differences, wherein the metal connecting plate is connected to the circuit board, and the metal connecting plate is used to connect the power supply module to the power distribution module, and the power distribution module is used to provide power to the load in the cabinet; according to the correlation between the temperature difference and the load rate of the power supply module, respectively determine the current load rate of each power supply module to obtain M current load rates; according to the target load rate, adjust the M current load rates to obtain M updated load rates. Through the present application, the problem of high complexity and cost of using an external power management controller to detect and adjust the load rate of the power supply module in the related art is solved.
Description
Technical Field
The embodiment of the application relates to the field of computers, in particular to a method and a device for adjusting the load rate of a power supply module.
Background
Power shell is an important component of a data center Power distribution architecture for providing Power to various devices within a cabinet. Modern data centers require high energy management to reduce operating costs and increase sustainability. To achieve this objective, power shell needs to be able to effectively detect the load condition of the whole cabinet, and dynamically adjust the load rate of each PSU (Power Supply Unit, power supply module) in the Power distribution module group according to the load condition of the whole cabinet, so as to ensure that the PSU module can reach the optimal Power supply state.
In the related art, when the load factor of PSU is adjusted, a method is adopted in which the PMC (Power Management Controller ) detects the output load state of the power shell through the I 2 C bus (Inter-INTEGRATED CIRCUIT BUS, integrated circuit bus), and adjusts the load current of each PSU in the power shell according to the detected output load state, so that the PSU in use is adjusted to a preset load factor, and the maximum efficiency of PSU is achieved.
However, the complexity of detecting and adjusting the load rate of the PSU through the PMC and the I 2 C is high, special personnel are required to implement and maintain the PSU, the cost is high, and the PMC and the I 2 C are required to be integrated in the existing power distribution module, so that the normal use of the power distribution module is easily affected.
Disclosure of Invention
The embodiment of the application provides a method and a device for adjusting the load rate of a power supply module, which at least solve the problems of high complexity and high cost of detecting and adjusting the load rate of the power supply module by using an external power management controller in the related technology.
According to one embodiment of the application, a method for adjusting the load rate of a power supply module is provided, and the method comprises the steps of detecting temperature differences between metal connecting plates at output ends of M power supply modules and copper foils of a circuit board in an operation state to obtain M temperature differences, wherein the metal connecting plates are connected with the circuit board and are used for connecting the power supply modules with a power distribution module which is used for providing power for loads in a cabinet, M is a positive integer, determining current load rates of the power supply modules according to association relations between the temperature differences and the load rates of the power supply modules respectively to obtain M current load rates, and adjusting the M current load rates according to a target load rate to obtain M updated load rates.
In one exemplary embodiment, determining the current load rates of the power supply modules according to the association between the temperature difference and the load rates of the power supply modules, respectively, to obtain M current load rates includes determining voltage differences between the metal connection plates and the copper foils of the circuit boards of the power supply modules according to the mapping between the temperature difference and the voltage differences to obtain M voltage differences, and determining the current load rates of the power supply modules according to the linear relationship between the voltage differences and the load rates of the power supply modules to obtain M current load rates.
In an exemplary embodiment, the mapping relation between the temperature difference and the voltage difference is determined according to the following manner that for any one power supply module, the temperature difference of a metal connecting plate and a circuit board copper foil at the output end of the power supply module at N temperature acquisition moments is obtained to obtain N historical temperature differences, wherein N is a positive integer, the voltage value between the metal connecting plate and the circuit board copper foil at each temperature acquisition moment is obtained to obtain N historical voltage values, the historical temperature differences and the historical voltage differences at the same temperature acquisition moment are grouped to obtain N groups of mapping values, and the mapping relation between the temperature difference and the voltage difference is determined according to the N groups of mapping values.
In an exemplary embodiment, the linear relationship between the voltage difference and the load rate of the power supply module is obtained by obtaining the voltage difference at P historical moments to obtain P historical voltage differences, wherein P is a positive integer, obtaining the load rate of the power supply module at each historical moment to obtain P historical load rates, determining the historical voltage difference and the historical load rate at the same historical moment as a group of sample data to obtain P groups of sample data, training an initial linear regression model through the P groups of sample data to obtain a target linear regression model, and determining the linear relationship between the voltage difference and the load rate of the power supply module through the target linear regression model.
In an exemplary embodiment, the M current load rates are adjusted according to the target load rates, the M updated load rates are obtained by calculating an average value of the M current load rates to obtain an average load rate, calculating a difference between the average load rate and the target load rate to obtain a target difference, adjusting the M current load rates according to a magnitude relation between the average load rate and the target load rate to obtain M updated load rates when the target difference is larger than a preset value, calculating a target variance of the M current load rates when the target difference is smaller than or equal to the preset value, judging whether the target variance is larger than the preset variance, changing the current load rate to the average load rate when the target variance is larger than the preset variance, and keeping the M current load rates unchanged when the target variance is smaller than or equal to the preset variance.
In an exemplary embodiment, the method comprises the steps of adjusting M current load rates according to the magnitude relation between an average load rate and a target load rate, and obtaining M updated load rates, wherein under the condition that the average load rate is smaller than the target load rate, sequentially closing power supply modules to which the M current load rates belong according to the order from small to large, calculating target difference between the updated average load rate and the target load rate after closing one power supply module until the target difference is smaller than or equal to a preset value, and obtaining the M updated load rates, the updated average load rate is obtained by calculating according to the sum of the M current load rates and the power supply modules which are in operation, and under the condition that the average load rate is larger than the target load rate, sequentially opening the power supply modules which are not in operation, and after each power supply module is opened, calculating target difference between the updated average load rate and the target load rate until the target difference is smaller than or equal to the preset value, and obtaining the updated load rate.
In one exemplary embodiment, the method further includes configuring M standby power supply modules according to the M updated load rates, and connecting the load to the M standby power supply modules in the event of an abnormality in the M power supply modules.
According to another embodiment of the application, a device for adjusting the load rates of power supply modules is provided, which comprises a detection module, an adjusting module and a control module, wherein the detection module is used for detecting temperature differences between metal connecting plates at output ends of M power supply modules and copper foils of a circuit board to obtain M temperature differences in an operation state, the metal connecting plates are connected with the circuit board and are used for connecting the power supply modules with a power distribution module, the power distribution module is used for providing power for loads in a cabinet, M is a positive integer, the first determining module is used for respectively determining the current load rates of the power supply modules according to the correlation between the temperature differences and the load rates of the power supply modules to obtain M current load rates, and the adjusting module is used for adjusting the M current load rates according to a target load rate to obtain M updated load rates.
According to a further embodiment of the application, there is also provided a computer readable storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the method embodiments described above when run.
According to a further embodiment of the application there is also provided an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the method embodiments described above.
According to the application, the temperature difference is generated between the metal connecting plate and the copper foil of the circuit board, which are connected with the power distribution module, in the power supply module in the process of supplying power to the power distribution module, and according to the first thermoelectric effect, the voltage difference can be determined according to the temperature difference, and then the load factor is determined according to the voltage difference, so that the load factor of the power supply module can be detected according to the temperature difference, and the load factor is further adjusted, and the power supply module can be ensured to operate in an optimal operation state.
Drawings
Fig. 1 is a block diagram of a hardware structure of a mobile terminal according to a method for adjusting a load factor of a power supply module according to an embodiment of the present application;
FIG. 2 is a flowchart of a method for adjusting a load factor of a power supply module according to an embodiment of the application;
FIG. 3 is a schematic diagram of a system for adjusting the load factor of a power supply module according to an embodiment of the application;
FIG. 4 is a flow chart of an alternative determination of the current load rate of a power supply module according to an embodiment of the application;
Fig. 5 is a block diagram of a power supply module load rate adjusting device according to an embodiment of the application.
Detailed Description
Embodiments of the present application will be described in detail below with reference to the accompanying drawings in conjunction with the embodiments.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The method embodiments provided in the embodiments of the present application may be performed in a mobile terminal, a computer terminal or similar computing device. Taking the mobile terminal as an example, fig. 1 is a block diagram of a hardware structure of a mobile terminal according to a method for adjusting a load factor of a power supply module according to an embodiment of the present application. As shown in fig. 1, a mobile terminal may include one or more (only one is shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a microprocessor MCU or a processing device such as a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 for communication functions and an input-output device 108. It will be appreciated by those skilled in the art that the structure shown in fig. 1 is merely illustrative and not limiting of the structure of the mobile terminal described above. For example, the mobile terminal may also include more or fewer components than shown in fig. 1, or have a different configuration than shown in fig. 1.
The memory 104 may be used to store a computer program, for example, a software program of application software and a module, such as a computer program corresponding to a method for adjusting a load factor of a power supply module in an embodiment of the present application, and the processor 102 executes the computer program stored in the memory 104 to perform various functional applications and data processing, that is, implement the above-mentioned method. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory remotely located relative to the processor 102, which may be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used to receive or transmit data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, simply referred to as a NIC) that can connect to other network devices through a base station to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is configured to communicate with the internet wirelessly.
For convenience of description, the following will describe some terms or terminology involved in the embodiments of the present application:
The PMC (Power Management Controller ) is mainly used for managing power supply of the electronic equipment, including monitoring power state, controlling power conversion, optimizing power consumption and the like.
The load factor of the PSU (Power Supply Unit ) is an important performance indicator, which reflects the relation between the load carried by the PSU in actual operation and its rated load. The load factor is the ratio of the current output power of the PSU to its rated power, usually expressed in percent. During the operation of PSU, the load factor directly affects its efficiency, stability and lifetime.
Power shell is a name of a Power supply rack or a Power supply distribution module, and is mainly used in environments such as a data center and a server room, and provides Power distribution and management functions with high reliability and flexibility.
PSU (Power Supply Unit ) is an important component in a computer, and is mainly responsible for converting power into low-voltage, high-current dc power required by the computer.
Printed Circuit Board, printed circuit board.
In this embodiment, a method for adjusting a load factor of a power supply module operating in the mobile terminal is provided, and fig. 2 is a flowchart of a method for adjusting a load factor of a power supply module according to an embodiment of the present application, as shown in fig. 2, where the flowchart includes the following steps:
Step S202, detecting temperature differences between metal connecting plates at output ends of M power supply modules and copper foils of a circuit board in an operation state to obtain M temperature differences, wherein the metal connecting plates are connected with the circuit board, the metal connecting plates are used for connecting the power supply modules with a power distribution module, the power distribution module is used for providing power for loads in a cabinet, and M is a positive integer.
It should be noted that fig. 3 is a schematic diagram of a system for adjusting a load factor of a Power supply module according to an embodiment of the present application, as shown in fig. 3, the Power supply module includes a PCB circuit board, the PCB circuit board is connected with a Power distribution module (Power shell) through a metal connection board and a connector on the Power distribution module, one Power distribution module may be connected with at least one Power supply module, and Power is provided to the Power distribution module through at least one Power supply module, so that the Power distribution module may be used to supply Power to other load devices. The method comprises the steps that a temperature acquisition device is respectively connected to a metal connecting plate and a circuit board copper foil of a PCB, and then under the condition that a power supply module operates, temperature values on the metal connecting plate and the circuit board copper foil of the PCB are acquired according to the temperature acquisition device, and then temperature differences between the metal connecting plate and the circuit board copper foil of each power supply module are obtained through calculation according to the temperature values, so that the temperature differences are further processed through a processor, and the load rate of the power supply module is obtained.
It should be noted that, according to the first thermoelectric effect, since different voltages are generated when two metals of different materials in a connection state are at different temperatures, and since the metal connection plate is made of gold-plated material and the PCB is made of copper foil, different temperature differences can be generated on contact surfaces of two different metal materials under different load conditions, a voltage difference can be generated at this time, and by means of the corresponding relationship, the load rate of each power supply module can be determined, and then the load rate of at least one power supply module connected to the power distribution module is adjusted, so that each power supply module operates in an optimal operation state.
Step S204, according to the association relationship between the temperature difference and the load rates of the power supply modules, determining the current load rates of the power supply modules respectively, and obtaining M current load rates.
Specifically, after the temperature difference is obtained, the voltage difference between the metal connecting plate and the copper foil of the circuit board can be determined according to the corresponding relation between the temperature difference and the voltage difference, and the current load rate of each power supply module is determined according to the linear relation between the voltage difference and the load rate, so that the measurement operation of the current load rate is completed.
For example, fig. 4 is a flowchart of an alternative method for determining a current load factor of a power supply module according to an embodiment of the present application, and as shown in fig. 4, the step of determining the current load factor of the power supply module may be as follows:
in step S302, temperature changes of the metal connection board and the copper foil of the circuit board are monitored in real time by using a temperature sensor, and a temperature difference Δt between the metal connection board and the copper foil of the circuit board is calculated.
Step S304, calculating the voltage variation according to the temperature variation. The formula is:
ΔV=S·ΔT;
where S is the thermoelectric coefficient, Δt is the temperature difference, and Δv is the voltage difference.
Step S306, converting the voltage difference into the load factor by using the trained linear regression model between the load factor and the voltage difference, and further obtaining the current load factor.
And S206, adjusting M current load rates according to the target load rates to obtain M updated load rates.
Specifically, after the current load rate is obtained, a target load rate capable of enabling the power supply modules to be in the optimal operation efficiency is required to be determined, and the current load rate of each power supply module is adjusted according to the target load rate, so that the adjusted load rate of each power supply module is close to the target load rate, and the power supply modules with the adjusted load rates can reach the optimal operation state as much as possible, and the technical effect of improving the operation efficiency of the power supply modules is achieved.
Through the steps, the problem that the complexity and the cost for detecting and adjusting the load rate of the power supply module by using the external power supply management controller in the related technology are high is solved, and the technical effects that the load rate of the power supply module is accurately detected under the condition that the complexity and the cost for detecting and adjusting the load rate are reduced, the load rate is accurately adjusted, and the operation efficiency of the power supply module is ensured are achieved.
The main execution body of the steps may be a server, a processor, a terminal, or the like, but is not limited thereto.
In one exemplary embodiment, determining the current load rates of the power supply modules according to the association between the temperature difference and the load rates of the power supply modules, respectively, to obtain M current load rates includes determining voltage differences between the metal connection plates and the copper foils of the circuit boards of the power supply modules according to the mapping between the temperature difference and the voltage differences to obtain M voltage differences, and determining the current load rates of the power supply modules according to the linear relationship between the voltage differences and the load rates of the power supply modules to obtain M current load rates.
Specifically, when the current load rate of the power supply module is determined according to the association relationship between the temperature difference and the load rate, since there is no direct relationship between the temperature difference and the load rate, the mapping relationship between the temperature difference and the voltage difference can be determined first by taking the voltage difference as an intermediate value, then the mapping relationship between the voltage difference and the load rate is determined, and then the current load rate corresponding to the collected temperature difference is determined by the voltage difference.
For example, after the temperature values of the metal connection board and the copper foil of the circuit board are obtained, the temperature difference between the metal connection board and the copper foil of the circuit board can be calculated, the voltage difference is determined through the mapping relation between the temperature difference and the voltage difference, and the current load rate of the power supply module is determined according to the linear relation between the voltage difference and the load rate.
In this embodiment, the temperature difference and the load factor are related by the voltage difference, so that the current load factor of the power supply module can be determined according to the temperature difference when the temperature difference is obtained.
In an exemplary embodiment, the mapping relation between the temperature difference and the voltage difference is determined according to the following manner that for any one power supply module, the temperature difference of a metal connecting plate and a circuit board copper foil at the output end of the power supply module at N temperature acquisition moments is obtained to obtain N historical temperature differences, wherein N is a positive integer, the voltage value between the metal connecting plate and the circuit board copper foil at each temperature acquisition moment is obtained to obtain N historical voltage values, the historical temperature differences and the historical voltage differences at the same temperature acquisition moment are grouped to obtain N groups of mapping values, and the mapping relation between the temperature difference and the voltage difference is determined according to the N groups of mapping values.
Specifically, when determining the voltage difference according to the temperature difference, the calculation may be performed according to the following formula:
ΔV=S·ΔT;
where S is the thermoelectric coefficient, Δt is the temperature difference, and Δv is the voltage difference.
In order to ensure the accuracy of calculation by the above formula, the thermoelectric coefficient needs to be accurately determined, at this time, the temperature difference between the metal connecting plate at the output end of the power supply module and the copper foil of the circuit board at N temperature acquisition times may be obtained first, where the temperature acquisition time may be the time of testing the power supply module, that is, the power supply module is not formally used. When the temperature difference at each temperature acquisition time is acquired, the voltage difference at each temperature acquisition time is required to be acquired, so that a group of voltage differences and temperature differences with association relations at each temperature acquisition time are obtained, and the thermoelectric coefficient S is determined through a plurality of groups of voltage differences and temperature differences at a plurality of temperature acquisition times, so that the accuracy of the thermoelectric coefficient S is ensured, and the accuracy of calculating the voltage differences is further ensured.
For example, the mapping relationship between the temperature difference and the voltage difference may be obtained according to the following procedure:
Firstly, the power supply module is ensured to be in an operating state, and the temperature sensor and the voltage measuring equipment are prepared. Temperature sensors are respectively arranged on the metal connecting plate at the output end of the power supply module and the copper foil of the circuit board so as to measure the temperature. Meanwhile, a voltage measuring device is provided to monitor the voltage between the two. And setting a time interval for temperature acquisition, and starting a data acquisition process. At each set time point, the temperature values of the metal connection board and the copper foil of the circuit board are simultaneously recorded, and the temperature difference between them is calculated, and at the same time, the voltage value at that time point is recorded. Repeating the steps until the preset N temperature acquisition moments are reached, and collecting N historical temperature differences and N historical voltage values.
Further, the collected temperature differences and the collected voltage values are sorted according to a time sequence, the temperature differences and the collected voltage values at each temperature collection time point are guaranteed to be in one-to-one correspondence, the temperature differences and the collected voltage values at the same time point are combined into a group of mapping values, N groups of mapping values are obtained, and a data analysis tool or a data analysis method is used for analyzing the N groups of mapping values to determine the mapping relation between the temperature differences and the voltage differences, such as calculating correlation coefficients or carrying out regression analysis.
And finally, based on the analysis result, determining a specific mapping relation between the temperature difference and the voltage difference.
According to the embodiment, the mapping relation between the temperature difference and the voltage difference is determined, so that the accurate voltage difference can be obtained according to the temperature difference.
In an exemplary embodiment, the linear relationship between the voltage difference and the load rate of the power supply module is obtained by obtaining the voltage difference at P historical moments to obtain P historical voltage differences, wherein P is a positive integer, obtaining the load rate of the power supply module at each historical moment to obtain P historical load rates, determining the historical voltage difference and the historical load rate at the same historical moment as a group of sample data to obtain P groups of sample data, training an initial linear regression model through the P groups of sample data to obtain a target linear regression model, and determining the linear relationship between the voltage difference and the load rate of the power supply module through the target linear regression model.
Specifically, when determining the linear relationship between the voltage difference and the load factor of the power supply module, the relationship between the voltage difference and the load factor may be determined by training a linear regression model.
When the linear regression model is trained, firstly, data acquisition operation is needed, voltage difference and load rate at the same moment can be collected, and P groups of historical voltage difference and historical load rate are obtained, wherein the data format can be [ (historical voltage difference 1, historical load rate 1), (historical voltage difference 2, historical load rate 2) ].
Further, after the P-group historical voltage difference and the historical load rate are obtained, the data can be subjected to preprocessing operation, data cleaning can be performed, missing values and abnormal values, such as larger values or smaller values, are processed, and standardized or normalized operation is performed on the data, so that the data are on the same scale, the orders of magnitude of different characteristic values are reduced, the model training effect is affected, the P-group processed historical voltage difference and the P-group processed historical load rate are obtained, and the P-group sample data are determined.
Further, after obtaining the P-group sample data, the P-group sample data may be divided into a training set and a test set, typically 80% as the training set and 20% as the test set, to avoid overfitting.
Further, after the training set data is obtained, the linear regression model needs to be trained to obtain model parameters (slope and intercept), and the test set data is used for evaluating the performance of the model, and indexes such as R 2 score, mean square error and the like can be calculated to verify the rationality and generalization capability of the model. Wherein, the R 2 score is an important index for measuring the fitting goodness of the linear regression model, and represents the interpretation ratio of independent variables to dependent variables, the value range is between 0 and 1, and the calculation formula is as follows:
wherein SSres is the sum of squares of the residuals and SStot is the sum of the total squares.
R 2 =1 indicates that the model can fully account for the variation of the dependent variable.
R 2 =0 indicates that the model cannot account for the change in the dependent variable.
Negative values indicate that the model fits less effectively than simple average predictions.
The mean square error is an index for measuring the difference between the predicted value and the true value, and reflects the prediction accuracy of the model. The formula is as follows:
Where y i is the true value, Is the predicted value and n is the number of samples. The smaller the MSE value, the smaller the prediction error of the model, and the better the fitting effect.
According to the embodiment, the linear relation between the voltage difference and the load rate of the power supply module is determined, so that the accurate load rate can be obtained according to the voltage difference.
In an exemplary embodiment, the M current load rates are adjusted according to the target load rates, the M updated load rates are obtained by calculating an average value of the M current load rates to obtain an average load rate, calculating a difference between the average load rate and the target load rate to obtain a target difference, adjusting the M current load rates according to a magnitude relation between the average load rate and the target load rate to obtain M updated load rates when the target difference is larger than a preset value, calculating a target variance of the M current load rates when the target difference is smaller than or equal to the preset value, judging whether the target variance is larger than the preset variance, changing the current load rate to the average load rate when the target variance is larger than the preset variance, and keeping the M current load rates unchanged when the target variance is smaller than or equal to the preset variance.
Specifically, after obtaining M current load rates, it is necessary to determine a difference condition between the current load rate and the target load rate, further determine whether to adjust the current load rate according to the difference condition, and further determine an adjustment manner for the current load rate under the condition that the current load rate needs to be adjusted, so that the load rates of the power supply modules are close to the target load rate, and further improve the operation efficiency of the power supply modules.
It should be noted that when judging whether the current load rate needs to be adjusted according to the difference condition, the average load rates of the M current load rates may be calculated first, and the average load rate and the target load rate may be compared, and when the difference between the average load rate and the target load rate is greater than a preset value, the number of currently used power supply modules is represented to be too large or too small, so that the total load rate cannot be averaged to be near the target load rate.
When calculating the difference between the average load rate and the target load rate, the absolute value of the difference between the average load rate and the target load rate may be calculated first, and the absolute value may be divided by the target load rate to obtain the difference between the average load rate and the target load rate.
Further, under the condition that the difference between the average load rate and the target load rate is smaller than or equal to a preset value, the difference between the average value of the representation load rate and the target load rate is smaller, but the situation that the load rate of part of the power supply modules is higher and the load rate of part of the power supply modules is lower may occur, that is, the load rate distribution is unreasonable, in this case, the average value is close to the target load rate, but the load rate of the power supply modules still needs to be adjusted, that is, the load of the power supply modules is balanced, and the load is dynamically distributed among the power supply modules according to the real-time load rate, so that each power supply module can be under the stable operation load rate, and the operation efficiency of the power supply modules is improved.
The method comprises the steps of calculating target variances of M current load rates under the condition that the target variance is smaller than or equal to a preset value, judging whether the target variances are larger than the preset variances, changing the current load rates into average load rates under the condition that the target variances are larger than the preset variances to obtain M updated load rates, and keeping the M current load rates unchanged under the condition that the target variances are smaller than or equal to the preset variances.
It should be noted that, when the difference between the average load rate and the target load rate is less than or equal to the preset value, since there may be a case where the load rate of a part of the power supply modules is higher and the load rate of a part of the power supply modules is lower, the variance of the current load rates may be calculated, and whether the variance is greater than the preset variance may be determined, and when the variance is greater than the preset variance, the load rate difference between the running power supply modules is too large, and at this time, the load rates of the power supply modules need to be all changed to the average load rate, so that the load rate of each power supply module is ensured to be in a section with higher running efficiency.
It should be noted that, when the target variance is less than or equal to the preset variance, it may be indicated that the load rate difference of each power supply module is not large, and since the difference between the average load rate and the target load rate is small, it may be determined that the load rate of each power supply module is already in the interval with higher operation efficiency, and at this time, the load rate of each power supply module may be kept unchanged, thereby keeping higher operation efficiency.
According to the embodiment, the accuracy of judging whether the load rate of the power supply module needs to be changed is improved by calculating the difference between the average load rate and the target load rate, and whether the load rate of the power supply module needs to be changed is further judged by calculating the variance, so that the technical effect of improving the accuracy of the change of the load rate is achieved.
In an exemplary embodiment, the method comprises the steps of adjusting M current load rates according to the magnitude relation between an average load rate and a target load rate, and obtaining M updated load rates, wherein under the condition that the average load rate is smaller than the target load rate, sequentially closing power supply modules to which the M current load rates belong according to the order from small to large, calculating target difference between the updated average load rate and the target load rate after closing one power supply module until the target difference is smaller than or equal to a preset value, and obtaining the M updated load rates, the updated average load rate is obtained by calculating according to the sum of the M current load rates and the power supply modules which are in operation, and under the condition that the average load rate is larger than the target load rate, sequentially opening the power supply modules which are not in operation, and after each power supply module is opened, calculating target difference between the updated average load rate and the target load rate until the target difference is smaller than or equal to the preset value, and obtaining the updated load rate.
Specifically, under the condition that the difference between the average load rate and the target load rate is larger than a preset value, the fact that the load rate in each current power supply module is larger or smaller is indicated, and at the moment, whether the load rate in each current power supply module is larger or smaller needs to be determined according to the size relation between the average load rate and the target load rate.
Under the condition that the average load rate is smaller than the target load rate, the load rate of each power supply module is smaller, at the moment, the mode of closing part of the power supply modules can be adopted, the load rate of each power supply module is improved, and further the load rate of the power supply modules in an operating state is guaranteed to be close to the target load rate. Because the current load rates of different power supply modules are different, the power supply modules corresponding to each current load rate can be turned off sequentially according to the sequence from small to large by M current load rates, and after each power supply module is turned off, the target difference degree between the updated average load rate and the target load rate is calculated, so that whether the power supply modules still need to be turned off continuously is judged according to the target difference degree.
It should be noted that, since the load rate of the power shell output to the outside needs to be kept unchanged, when calculating the updated average load rate, it is necessary to obtain the total load rate of the M current load rates, and divide the total load rate by M-1, so as to obtain the average load rate after one power supply module is turned off. In this case, the updated load factor of the power supply module that is turned off is 0.
For example, the M current load rates may be 20%, 25%, 30%, 35%, and the average load rate is 27.5% when the target load rate is 50%, the difference of the load rates is 27.5-50/50=45%, at this time, when the preset value is 15%, the difference of the representative load rates is greater than the preset value, at this time, since the average load rate is smaller than the target load rate, the power supply modules need to be turned off in the order of the load rate from small to large, the load rate of the power supply module with the load rate of 20% needs to be changed from 20% to 0% (i.e. the power supply module is turned off), at this time, when the updated average load rate is calculated, the calculation mode is 27.5% ×4/3=36.6%, so as to obtain the average load rate of the remaining three power supply modules, at this time, the difference of the load rate is calculated to be 26.8%, at this time, the power supply modules with the load rate of 25% need to be turned off, and the power supply modules with the load rate of 20% need to be turned off, at this time, the difference of the power supply modules is calculated to be smaller than the preset value, and the difference of the power supply modules is calculated to be turned off, and the difference of the power supply modules is determined to be smaller than the average value.
Similarly, under the condition that the average load rate is larger than the target load rate, the load rate of each power supply module is larger at present, at this time, the load rate of each power supply module can be reduced by adopting a mode of opening part of the power supply modules, and further, the load rate of the power supply modules in an operating state can be ensured to be close to the target load rate.
In order to ensure full utilization of each power supply module, the power supply modules which are not in an operation state can be sequentially turned on, and after each power supply module is turned on, the target difference degree between the updated average load rate and the target load rate is calculated until the target difference degree is smaller than or equal to a preset value, so that each power supply module is ensured to operate under the load rate with higher operation efficiency.
For example, the M current load rates may be 60%, 65%, and the average load rate is 62.5% when the target load rate is 50%, and at this time, the difference from the target load rate of 50% is 25%, at this time, an inoperative power supply module needs to be turned on, and the average load rate of each power supply module needs to be recalculated, at this time, the updated average load rate is 50%, and at this time, it may be determined that the target difference is less than or equal to a preset value.
In the embodiment, whether the number of the power supply modules needs to be increased or decreased is judged by calculating the average value, so that the load rate of the power supply modules is changed in a mode of increasing or decreasing the power supply modules, and the technical effect of improving the accuracy of the change of the load rate is achieved.
In one exemplary embodiment, the method further includes configuring M standby power supply modules according to the M updated load rates, and connecting the load to the M standby power supply modules in the event of an abnormality in the M power supply modules.
Specifically, after the update operation of the load rates of the power supply modules is completed, the standby power supply modules are required to be configured according to the updated load rates, so that the updated load rates of the standby power supply modules and the power supply modules are kept consistent, and the load and the standby power supply modules can be connected together under the condition that the power supply modules are abnormal, thereby ensuring normal power supply to the load end.
The standby power supply module is configured, so that the effect of ensuring normal power supply to the load is achieved.
From the description of the above embodiments, it will be clear to a person skilled in the art that the method according to the above embodiments may be implemented by means of software plus the necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.
In this embodiment, a device for adjusting a load factor of a power supply module is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, which are not described herein. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
Fig. 5 is a block diagram of a power supply module load rate adjusting device according to an embodiment of the present application, and as shown in fig. 5, the device includes a detection module 51, a first determination module 52, and an adjusting module 53.
The detecting module 51 is configured to detect temperature differences between the metal connection plates at the output ends of the M power supply modules and the copper foil of the circuit board in an operating state, to obtain M temperature differences, where the metal connection plates are connected with the circuit board, the metal connection plates are used to connect the power supply modules with the power distribution modules, the power distribution modules are used to provide power to the load in the cabinet, and M is a positive integer.
The first determining module 52 is configured to determine current load rates of the power supply modules according to the association relationship between the temperature difference and the load rates of the power supply modules, so as to obtain M current load rates.
And the adjusting module 53 is configured to adjust the M current load rates according to the target load rate, to obtain M updated load rates.
In an exemplary embodiment, the first determining module 52 includes a first determining unit configured to determine voltage differences between the metal connection plates and the copper foils of the circuit boards of the respective power supply modules according to a mapping relationship between the temperature differences and the voltage differences to obtain M voltage differences, and a second determining unit configured to determine current load rates of the respective power supply modules according to a linear relationship between the voltage differences and the load rates of the power supply modules to obtain M current load rates.
In an exemplary embodiment, the device further comprises a first acquisition module, a second acquisition module and a first grouping module, wherein the first acquisition module is used for acquiring temperature differences of a metal connecting plate and a circuit board copper foil at the output end of any one power supply module at N temperature acquisition moments to obtain N historical temperature differences, N is a positive integer, the second acquisition module is used for acquiring voltage values between the metal connecting plate and the circuit board copper foil at each temperature acquisition moment to obtain N historical voltage values, the first grouping module is used for grouping the historical temperature differences and the historical voltage differences at the same temperature acquisition moment to obtain N groups of mapping values, and the second determination module is used for determining a mapping relation between the temperature differences and the voltage differences according to the N groups of mapping values.
In an exemplary embodiment, the device further comprises a third obtaining module for obtaining voltage differences at P historical moments to obtain P historical voltage differences, wherein P is a positive integer, a fourth obtaining module for obtaining the load rates of the power supply module at each historical moment to obtain P historical load rates, a second grouping module for determining the historical voltage differences and the historical load rates at the same historical moment as a group of sample data to obtain P groups of sample data, and a training module for training the initial linear regression model through the P groups of sample data to obtain a target linear regression model and determining the linear relation between the voltage differences and the load rates of the power supply module through the target linear regression model.
In an exemplary embodiment, the adjusting module 53 includes a first calculating unit configured to calculate an average value of M current load rates to obtain an average load rate, a second calculating unit configured to calculate a difference between the average load rate and the target load rate to obtain a target difference, an adjusting unit configured to adjust the M current load rates according to a magnitude relation between the average load rate and the target load rate to obtain M updated load rates when the target difference is greater than a preset value, a third calculating unit configured to calculate a target variance of the M current load rates when the target difference is less than or equal to the preset value, and determine whether the target variance is greater than the preset variance, a changing unit configured to change the current load rate to the average load rate to obtain the M updated load rates when the target variance is greater than the preset variance, and a maintaining unit configured to maintain the M current load rates unchanged when the target variance is less than or equal to the preset variance.
In an exemplary embodiment, the adjusting unit includes a first adjusting subunit, configured to sequentially turn off power supply modules to which M current load rates belong in order from small to large when an average load rate is smaller than a target load rate, and calculate a target difference between the updated average load rate and the target load rate after each power supply module is turned off until the target difference is smaller than or equal to a preset value, to obtain M updated load rates, where the updated average load rate is calculated according to the updated load rate of the power supply modules that are running, and a second adjusting subunit, configured to sequentially turn on the power supply modules that are not in a running state when the average load rate is greater than the target load rate, and calculate a target difference between the updated average load rate and the target load rate after each power supply module is turned on until the target difference is smaller than or equal to the preset value, to obtain M updated load rates.
In an exemplary embodiment, the device further comprises a configuration module, configured to configure the M standby power supply modules according to the M updated load rates, and connect the load with the M standby power supply modules in case of abnormality of the M power supply modules.
It should be noted that each of the above modules may be implemented by software or hardware, and the latter may be implemented by, but not limited to, the above modules all being located in the same processor, or each of the above modules being located in different processors in any combination.
Embodiments of the present application also provide a computer readable storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the method embodiments described above when run.
In an exemplary embodiment, the computer readable storage medium may include, but is not limited to, a U disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a removable hard disk, a magnetic disk, or an optical disk, etc. various media in which a computer program may be stored.
An embodiment of the application also provides an electronic device comprising a memory having stored therein a computer program and a processor arranged to run the computer program to perform the steps of any of the method embodiments described above.
In an exemplary embodiment, the electronic device may further include a transmission device connected to the processor, and an input/output device connected to the processor.
Specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the exemplary implementation, and this embodiment is not described herein.
It will be appreciated by those skilled in the art that the modules or steps of the application described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may be implemented in program code executable by computing devices, so that they may be stored in a storage device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than that shown or described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps of them may be fabricated into a single integrated circuit module. Thus, the present application is not limited to any specific combination of hardware and software.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a method for adjusting the load rate of a power supply module, which is characterized by comprising the following steps:
under the running state, detecting temperature differences between metal connecting plates at the output ends of M power supply modules and copper foils of a circuit board to obtain M temperature differences, wherein the metal connecting plates are connected with the circuit board, the metal connecting plates are used for connecting the power supply modules with a power distribution module, the power distribution module is used for providing power for loads in a cabinet, and M is a positive integer;
According to the association relation between the temperature difference and the load rates of the power supply modules, determining the current load rates of the power supply modules respectively to obtain M current load rates;
and regulating the M current load rates according to the target load rates to obtain M updated load rates.
2. The method of claim 1, wherein determining the current load rates of the power supply modules according to the association between the temperature difference and the load rates of the power supply modules, respectively, comprises:
determining the voltage difference between the metal connecting plate of each power supply module and the copper foil of the circuit board according to the mapping relation between the temperature difference and the voltage difference to obtain M voltage differences;
and determining the current load rates of the power supply modules according to the linear relation between the voltage difference and the load rates of the power supply modules, so as to obtain M current load rates.
3. The method according to claim 2, characterized in that the mapping between the temperature difference and the voltage difference is determined according to the following manner:
For any one power supply module, acquiring temperature differences of a metal connecting plate at the output end of the power supply module and the copper foil of the circuit board at N temperature acquisition moments to obtain N historical temperature differences, wherein N is a positive integer;
acquiring voltage values between the metal connecting plate and the copper foil of the circuit board at each temperature acquisition time to obtain N historical voltage values;
the historical temperature difference and the historical voltage difference at the same temperature acquisition time are divided into one group to obtain N groups of mapping values;
And determining the mapping relation between the temperature difference and the voltage difference according to the N groups of mapping values.
4. The method of claim 2, wherein the linear relationship between the voltage difference and the load factor of the power supply module is obtained by:
Obtaining voltage differences at P historical moments to obtain P historical voltage differences, wherein P is a positive integer;
obtaining the load rates of the power supply modules at each historical moment to obtain P historical load rates;
Determining a historical voltage difference and a historical load rate at the same historical moment as a group of sample data to obtain P groups of sample data;
Training an initial linear regression model through the P groups of sample data to obtain a target linear regression model, and determining the linear relation between the voltage difference and the load rate of the power supply module through the target linear regression model.
5. The method of claim 1, wherein adjusting the M current load rates according to a target load rate, the obtaining M updated load rates comprises:
calculating the average value of the M current load rates to obtain an average load rate;
calculating the difference between the average load rate and the target load rate to obtain a target difference;
When the target difference degree is larger than a preset value, adjusting the M current load rates according to the magnitude relation between the average load rate and the target load rate to obtain M updated load rates;
calculating target variances of the M current load rates under the condition that the target variance is smaller than or equal to the preset value, and judging whether the target variances are larger than the preset variances or not;
Changing the current load rate to the average load rate under the condition that the target variance is larger than a preset variance to obtain M updated load rates;
And under the condition that the target variance is smaller than or equal to the preset variance, keeping the M current load rates unchanged.
6. The method of claim 5, wherein adjusting the M current load rates according to the magnitude relationship between the average load rate and the target load rate, the obtaining M updated load rates comprises:
Under the condition that the average load rate is smaller than the target load rate, sequentially closing the power supply modules to which the M current load rates belong according to the order from small to large, and after each power supply module is closed, calculating the target difference degree between the updated average load rate and the target load rate until the target difference degree is smaller than or equal to the preset value, so as to obtain the M updated load rates, wherein the updated average load rate is calculated according to the sum of the M current load rates and the running power supply module;
And under the condition that the average load rate is larger than the target load rate, sequentially opening power supply modules which are not in an operating state, and after each power supply module is opened, calculating the target difference degree between the updated average load rate and the target load rate until the target difference degree is smaller than or equal to the preset value, so as to obtain the updated load rate.
7. The method according to claim 1, wherein the method further comprises:
and configuring M standby power supply modules according to the M updated load rates, and connecting the load with the M standby power supply modules under the condition that the M power supply modules are abnormal.
8. The utility model provides a power supply module's load rate adjusting device which characterized in that includes:
The detection module is used for detecting temperature differences between metal connecting plates at the output ends of the M power supply modules and copper foils of the circuit board in an operation state to obtain M temperature differences, wherein the metal connecting plates are connected with the circuit board, the metal connecting plates are used for connecting the power supply modules with the power distribution modules, the power distribution modules are used for providing power for loads in the cabinet, and M is a positive integer;
the first determining module is used for respectively determining the current load rates of the power supply modules according to the association relation between the temperature difference and the load rates of the power supply modules to obtain M current load rates;
and the adjusting module is used for adjusting the M current load rates according to the target load rates to obtain M updated load rates.
9. A computer readable storage medium, characterized in that a computer program is stored in the computer readable storage medium, wherein the computer program, when being executed by a processor, implements the steps of the method according to any of the claims 1 to 7.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method of any one of claims 1 to 7 when the computer program is executed.
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