Output fluctuation control device and method for power supply current

Abstract

The invention provides a power supply current output fluctuation control device and method, and the method comprises the steps: obtaining the output current frequency offset distortion data of a power supply after the current fluctuation monitoring of the power supply is started, determining a power supply current inter-harmonic transient matrix according to the output current frequency offset distortion data, determining a power supply transient offset coefficient through the power supply current inter-harmonic transient matrix, and carrying out the control of the power supply current output fluctuation. A power supply current oscillation disturbance quantity is determined through a power supply transient variation offset coefficient, a power supply current jump bias rate is determined through a current aliasing amplitude variation sequence, a current amplitude modulation aggregation potential value is determined according to the power supply current jump bias rate, and a current hysteresis offset factor is extracted through output current frequency offset distortion data. And determining a power frequency follow current impact amount according to the current amplitude modulation aggregation potential value, determining a power supply output steady-state harmonicity according to the power frequency follow current impact amount and the current hysteresis imbalance factor, and if the power supply output steady-state harmonicity is greater than a preset current elastic fluctuation threshold value, triggering power supply output fluctuation control early warning. The reliability of output fluctuation control of power supply current can be improved.

Description

Technical Field

[0001] The present application relates to the field of power supply control technology, and more specifically, to a device and method for controlling output fluctuations of power supply current. Background Art

[0002] A power supply refers to a device or system that can provide electricity or electrical energy. It is used to convert electrical energy into various forms of voltage, current or frequency for use in electronic equipment, electrical equipment and other electric systems. The main function of a power supply is to provide stable electrical energy to meet the working needs of the equipment. Therefore, power supplies play an indispensable role in modern life and industry, and promote the progress of technology and society in many aspects. Power control refers to the process of managing and controlling the power supply of electronic equipment, which includes operations such as starting, shutting down, adjusting voltage, and monitoring current to ensure that the equipment uses power resources effectively and safely under normal working conditions. The main goal of power control is to improve energy efficiency, extend equipment life, and ensure system stability and safety. This process is usually achieved through power management chips, power management units (PMUs) or related hardware and software.

[0003] Power supply monitoring and control is a process of real-time acquisition, analysis and evaluation of the working status, performance and stability of the power supply system. It involves the use of various sensors, instruments and systems to monitor the voltage, current, power, frequency and other parameters of the power supply, as well as factors that may affect the performance of the power supply. The goal of power supply monitoring is to obtain data about the behavior of the power supply system in order to effectively manage the power supply system, prevent failures, improve energy utilization, and ensure the reliability and stability of related equipment. In the process of power supply monitoring and control, the power supply system itself will cause abnormal fluctuations in the power supply current due to load changes, thereby weakening the recognition ability of the power supply monitoring device and resulting in low reliability of power supply monitoring and control. Therefore, it is necessary to perform early warning control on the power supply monitoring device, but how to achieve output fluctuation control of the power supply current through early warning to improve the reliability of output fluctuation control of the power supply current is a problem faced by the industry. Summary of the invention

[0004] The present application provides a device and method for controlling output fluctuation of power supply current, so as to solve the technical problem of low reliability of output fluctuation control of power supply current in power supply monitoring and control through early warning.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions: In a first aspect, the present application provides a device and method for controlling output fluctuation of a power supply current, comprising the following steps: Start the current fluctuation monitoring of the power supply and obtain the output current frequency deviation distortion data of the power supply; Determine a power supply current interharmonic transient matrix according to the output current frequency deviation distortion data, determine a power supply transient offset coefficient through the power supply current interharmonic transient matrix, and then determine a power supply current oscillation disturbance amount through the power supply transient offset coefficient; Determine a current aliasing amplitude variation sequence according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix, determine a power supply current jump bias rate through the current aliasing amplitude variation sequence, and then determine a current amplitude modulation potential value according to the power supply current jump bias rate; Extracting the current hysteresis and imbalance factor through the output current frequency deviation and distortion data, determining the power frequency freewheeling impact amount through the current amplitude modulation potential value, and then determining the power supply output steady-state harmony degree according to the power frequency freewheeling impact amount and the current hysteresis and imbalance factor; The power supply output steady-state harmony degree is compared with a preset current elastic fluctuation threshold value. If the power supply output steady-state harmony degree is greater than the preset current elastic fluctuation threshold value, a power supply output fluctuation control warning is triggered.

[0006] In some embodiments, determining the power supply current interharmonic transient matrix according to the output current frequency deviation distortion data specifically includes: Performing equal-time division on the output current frequency offset distortion data to obtain an output current frequency offset distortion sequence; A power supply current interharmonic transient matrix is ​​determined according to the output current frequency deviation distortion sequence.

[0007] In some embodiments, determining the power supply transient offset coefficient by using the power supply current interharmonic transient matrix specifically includes: Determining the concentration and dispersion of the current frequency deviation distortion values ​​according to the current frequency deviation distortion values ​​in the power supply current interharmonic transient matrix; The power supply transient offset coefficient is determined according to the concentration of the current frequency offset distortion value and the dispersion of the current frequency offset distortion value.

[0008] In some embodiments, determining the current aliasing amplitude variation sequence according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix specifically includes: Determining a current disturbance entropy of the power supply current oscillation disturbance amount; Determining a current intermittent vector value of the power supply current interharmonic transient matrix; A current aliasing amplitude variation sequence is determined according to the current disturbance entropy and the current intermittent vector value.

[0009] In some embodiments, determining the power supply current transition bias rate through the current aliasing amplitude change sequence specifically includes: Determining the power supply current aliasing transition amount according to the current aliasing amplitude variation sequence; Determine the power supply current jump bias factor; Determining the power supply current embedding amount by the power supply current oscillation disturbance amount; A power supply current transition bias rate is determined according to the power supply current aliasing transition amount, the power supply current transition bias factor and the power supply current embedding amount.

[0010] In some embodiments, determining the current amplitude modulation potential value according to the power supply current jump bias rate specifically includes: Get the first of all power supply current oscillation disturbances The value of the power supply current oscillation disturbance ; Get the first The first The feature vector value ; Obtain the concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix ; According to the first The value of the power supply current oscillation disturbance , the power supply current fluctuation coefficient matrix The first The feature vector value and the concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix Determine the current amplitude modulation potential value, wherein the current amplitude modulation potential value is determined by the following formula: in, Indicates the current amplitude modulation potential value, Indicates the discrete degree of each power supply current oscillation disturbance value, Indicates The first The feature vector value The concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix The dispersion between Indicates The first The feature vector value The concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix The skewness between .

[0011] In some embodiments, it also includes that if the power output steady-state harmony is less than or equal to the preset current elastic fluctuation threshold value, it is determined that the current power output is stable and the current power output mode is marked as a stable mode.

[0012] In a second aspect, the present application provides an output fluctuation control device for a power supply current, comprising: An output current frequency deviation distortion data determination module is used to obtain the output current frequency deviation distortion data of the power supply after starting the current fluctuation monitoring of the power supply; A power supply current oscillation disturbance amount determination module, used to determine a power supply current interharmonic transient matrix according to the output current frequency deviation distortion data, determine a power supply transient offset coefficient through the power supply current interharmonic transient matrix, and determine a power supply current oscillation disturbance amount through the power supply transient offset coefficient; A current amplitude modulation potential value determination module is used to determine a current aliasing amplitude variation sequence according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix, determine a power supply current jump bias rate through the current aliasing amplitude variation sequence, and determine a current amplitude modulation potential value according to the power supply current jump bias rate; A power supply output steady-state harmony determination module, used to extract a current hysteresis imbalance factor through the output current frequency deviation distortion data, determine the power frequency follow-through impact amount from the current amplitude modulation potential value, and determine the power supply output steady-state harmony according to the power frequency follow-through impact amount and the current hysteresis imbalance factor; The power output early warning control module is used to compare the steady-state harmony of the power output with a preset current elastic fluctuation threshold value. If the steady-state harmony of the power output is greater than the preset current elastic fluctuation threshold value, a power output fluctuation control early warning is triggered.

[0013] In a third aspect, the present application provides a computer device, comprising a memory and a processor, wherein the memory stores codes, and the processor is configured to obtain the codes and execute the above-mentioned power supply current output fluctuation control method.

[0014] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned power supply current output fluctuation control method is implemented.

[0015] The technical solution provided by the embodiments disclosed in this application has the following beneficial effects: In the power supply current output fluctuation control method and device provided in the present application, firstly, the current fluctuation monitoring of the power supply is started, the output current frequency deviation distortion data of the power supply is obtained, the power supply current interharmonic transient matrix is ​​determined according to the output current frequency deviation distortion data, the power supply transient offset coefficient is determined by the power supply current interharmonic transient matrix, the power supply current oscillation disturbance amount is determined by the power supply transient offset coefficient, the current aliasing amplitude variation sequence is determined according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix, the power supply current jump bias rate is determined by the current aliasing amplitude variation sequence, the current amplitude modulation potential value is determined according to the power supply current jump bias rate, the current hysteresis offset factor is extracted by the output current frequency deviation distortion data, the power frequency afterflow impact amount is determined by the current amplitude modulation potential value, the power supply output steady-state harmony is determined according to the power frequency afterflow impact amount and the current hysteresis offset factor, the power supply output steady-state harmony is compared with a preset current elastic fluctuation threshold value, and if the power supply output steady-state harmony is greater than the preset current elastic fluctuation threshold value, a power supply output fluctuation control warning is triggered.

[0016] In the present application, by determining the power supply transient offset coefficient, the trend and degree of instantaneous change of current can be identified. Determining the power supply current oscillation disturbance amount helps to identify the instability of current and improve the stability and reliability of the output fluctuation control system of the power supply current. By determining the current aliasing amplitude change sequence, the information of the current oscillation disturbance amount and the current interharmonic transient matrix can be obtained, which helps to analyze the amplitude change of current and the degree of change of current fluctuation under the aliasing state of the harmonic sequence. Determining the power supply current jump bias rate can obtain more accurate control parameters, so as to more effectively perform fluctuation control, thereby enabling the output fluctuation control system of the power supply current to more quickly identify the impact of fluctuation changes and improve the efficiency of the output fluctuation control of the power supply current. By determining the power frequency continuous current impact amount, the spectrum characteristics, phase relationship and response to the power frequency continuous current impact of the current waveform can be fully understood. Determining the current hysteresis imbalance factor can optimize the current waveform, reduce the harmonic components in the spectrum, reduce the hysteresis degree of the current, and help improve the quality of the current. Determining the steady-state harmony of the power supply output can improve the response speed and stability of the output fluctuation control system of the power supply current, thereby improving the reliability of the output fluctuation control of the power supply current. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an exemplary flow chart of a method for controlling output fluctuation of a power supply current according to some embodiments of the present application; Figure 2 is a schematic diagram of an exemplary process of determining a power supply current transition bias rate according to some embodiments of the present application; Figure 3 is a schematic diagram of exemplary hardware and / or software of an output fluctuation control device for power supply current according to some embodiments of the present application; Figure 4 It is a structural schematic diagram of a computer device for implementing a method for controlling output fluctuations of a power supply current according to some embodiments of the present application. DETAILED DESCRIPTION

[0018] The core of the present application is to obtain the output current frequency deviation distortion data of the power supply after starting the current fluctuation monitoring of the power supply, determine the power supply current interharmonic transient matrix according to the output current frequency deviation distortion data, determine the power supply transient offset coefficient through the power supply current interharmonic transient matrix, determine the power supply current oscillation disturbance amount through the power supply transient offset coefficient, determine the power supply current jump bias rate through the current aliasing amplitude variation sequence, determine the current amplitude modulation potential value according to the power supply current jump bias rate, extract the current hysteresis offset factor through the output current frequency deviation distortion data, determine the power frequency follow-up impact amount from the current amplitude modulation potential value, determine the power supply output steady-state harmony degree according to the power frequency follow-up impact amount and the current hysteresis offset factor, if the power supply output steady-state harmony degree is greater than the preset current elastic fluctuation threshold value, trigger the power supply output fluctuation control warning, which can improve the reliability of the output fluctuation control of the power supply current.

[0019] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. Figure 1 , which is an exemplary flow chart of a method for controlling output fluctuation of a power supply current according to some embodiments of the present application. The method 100 for controlling output fluctuation of a power supply current mainly includes the following steps: In step 101, current fluctuation monitoring of a power supply is started to obtain output current frequency deviation distortion data of the power supply.

[0020] In specific implementation, the current fluctuation control and monitoring of the power supply is to ensure the stability, reliability and safety of the power supply output. The output current fluctuation of the power supply may be caused by load changes, power supply instability, failure or other reasons. Therefore, a certain control and monitoring mechanism is required to deal with these fluctuations. The current fluctuation control and monitoring of the power supply can control the current fluctuation, protect the power supply output current, etc. After starting the current fluctuation monitoring of the power supply, the output current frequency deviation distortion data of the power supply is collected through the power supply current fluctuation sensor and stored in the built-in memory. The output current frequency deviation distortion data of the power supply stored in the memory is read according to the preset program.

[0021] It should be noted that the output current frequency deviation distortion data of the power supply in the present application refers to the information of frequency distortion and harmonic components contained in the output current waveform. This distortion is caused by the deformation or distortion of the current waveform relative to a pure sinusoidal waveform when there is interference in the power supply output. It is usually caused by nonlinear loads, imperfections in the power supply or other power system problems. By analyzing the output current frequency deviation distortion data of the power supply, the output current of the power supply can be monitored and controlled.

[0022] In step 102, a power supply current interharmonic transient matrix is ​​determined according to the output current frequency deviation distortion data, a power supply transient offset coefficient is determined by the power supply current interharmonic transient matrix, and then a power supply current oscillation disturbance amount is determined by the power supply transient offset coefficient.

[0023] In some embodiments, determining the power supply current interharmonic transient matrix according to the output current frequency offset distortion data can be implemented by the following steps: Performing equal-time division on the output current frequency offset distortion data to obtain an output current frequency offset distortion sequence; A power supply current interharmonic transient matrix is ​​determined according to the output current frequency deviation distortion sequence.

[0024] In a specific implementation, the output current frequency deviation distortion data is composed of a series of timestamps and corresponding current frequency deviation distortion values. The output current frequency deviation distortion data is divided into equal time periods. In some embodiments, the output current frequency deviation distortion data is divided into time intervals of 1s to obtain corresponding current frequency deviation distortion values ​​within the same time interval, and the current frequency deviation distortion values ​​within the time interval are combined into a data sequence containing time. The power supply current interharmonic transient matrix is ​​determined according to the output current frequency deviation distortion sequence. In some embodiments, the mean value of the current frequency deviation distortion value within each time interval is used as the eigenvalue of the current frequency deviation distortion value within the time interval. According to the time extension order, the eigenvalues ​​of all current frequency deviation distortion values ​​in the time series are combined into a matrix. Each column of the matrix represents a time interval, and each row represents an eigenvalue of a current frequency deviation distortion value. The eigenvalues ​​of all time intervals and current frequency deviation distortion values ​​form an output current frequency deviation distortion sequence. The current frequency deviation distortion value refers to the current value of the waveform amplitude being distorted due to the frequency deflection of the power supply output current after being affected by vibration.

[0025] It should be noted that the output current frequency deviation distortion sequence in this step refers to a data sequence composed of the magnitude of the change in the amplitude of each frequency change when the frequency in the power supply current fluctuates, and the power supply current interharmonic transient matrix refers to the instantaneous change in the current frequency that is a multiple of the fundamental frequency when the current fluctuation produces resonance within the same time. The instantaneous change in current includes a sudden increase or decrease in amplitude, for example, a voltage sag, a temporary increase, a current surge, etc. caused by the instantaneous change in current.

[0026] In some embodiments, determining the power supply transient offset coefficient by using the power supply current interharmonic transient matrix can be implemented by the following steps: Determining the concentration and dispersion of the current frequency deviation distortion values ​​according to the current frequency deviation distortion values ​​in the power supply current interharmonic transient matrix; The power supply transient offset coefficient is determined according to the concentration of the current frequency offset distortion value and the dispersion of the current frequency offset distortion value.

[0027] In specific implementation, the concentration and dispersion of the current frequency deviation distortion values ​​are determined according to the current frequency deviation distortion values ​​in the power supply current interharmonic transient matrix. In some embodiments, for each column of current frequency deviation distortion values ​​in the power supply current interharmonic transient matrix, the average value of the current frequency deviation distortion values ​​in the first column of the power supply current interharmonic transient matrix can be calculated, and the average value can be used as the concentration of the current frequency deviation distortion values. For the variance of the eigenvalues ​​of the current frequency deviation distortion values ​​in all time intervals in the power supply current interharmonic transient matrix, the variance can be used as the dispersion of the current frequency deviation distortion values. In other embodiments, other methods can be used to determine the concentration and dispersion of the current frequency deviation distortion values, which are not limited here.

[0028] In addition, it should be noted that the concentration and dispersion of the current frequency deviation distortion value in this application can be determined by the following formula: in, Indicates the concentration of current frequency deviation distortion values, Each column in the power supply current interharmonic transient matrix has The current frequency deviation distortion value is Indicates the first The current frequency deviation distortion value is .

[0029] in, Indicates the discreteness of the current frequency deviation distortion value, Indicates the concentration of current frequency deviation distortion values, Each column in the power supply current interharmonic transient matrix has The current frequency deviation distortion value is Indicates the first The current frequency deviation distortion value is .

[0030] It should be noted that the concentration of the current frequency offset distortion values ​​in the present application represents the degree of concentration of each column of current frequency offset distortion values, reflecting the average level of fluctuation of the current frequency offset distortion values. The discreteness of the current frequency offset distortion values ​​refers to the degree of discreteness of each current frequency offset distortion value in each column of current frequency offset distortion values ​​compared to the concentration of the current frequency offset distortion values. The higher the discreteness, the greater the difference between the current frequency offset distortion values ​​and the more obvious the volatility.

[0031] In specific implementation, the power supply transient offset coefficient is determined according to the concentration of the current frequency offset distortion value and the discreteness of the current frequency offset distortion value. In some embodiments, the power supply transient offset coefficient can be determined according to the ratio of the concentration of the current frequency offset distortion value and the discreteness of the current frequency offset distortion value. In other embodiments, other methods can also be used to determine the power supply transient offset coefficient, which is not limited here. The power supply transient offset coefficient can be implemented using the following formula: in, Indicates the power supply transient offset coefficient, Indicates the concentration of current frequency deviation distortion values, Indicates the concentration of current frequency deviation distortion values, Each column in the power supply current interharmonic transient matrix has The current frequency deviation distortion value is Indicates the first The current frequency deviation distortion value is .

[0032] It should be noted that the power supply transient offset coefficient in the present application refers to a measure of the transient offset fluctuation of the power supply current during the output process, and this measure reflects the fluctuation characteristics of the power supply current during the output process.

[0033] In specific implementation, the power supply current oscillation disturbance amount is determined by the power supply transient offset coefficient. In some embodiments, the power supply transient offset coefficient can be divided into a time interval of 1s, and the power supply transient offset coefficient in each time interval is organized into a power supply transient offset coefficient matrix in chronological order. Each column of the power supply transient offset coefficient matrix represents the value of the power supply transient offset coefficient in a time interval, and each row represents a time interval. The result obtained by subtracting the characteristic vector of the average vector of the power supply transient offset coefficient matrix multiplied by each element in the power supply current interharmonic transient matrix and then subtracting the transposed value of the average vector is used as the power supply current oscillation disturbance amount.

[0034] It should be noted that in this step, the average vector of the power supply transient offset coefficient matrix refers to the vector composed of the mean values ​​of the power supply transient offset coefficients in each column of the power supply transient offset coefficient matrix. The eigenvalues ​​and eigenvectors of the average vector of the power supply transient offset coefficient matrix can be calculated by linear algebra library tools, for example, NumPy decomposes the power supply transient offset coefficient matrix into a matrix containing eigenvectors and a diagonal matrix, and the elements on the diagonal are the eigenvalues ​​of the average vector of the power supply transient offset coefficient matrix. The eigenvalues ​​of the average vector of the power supply transient offset coefficient matrix are sorted in order from large to small, and then the eigenvectors of the average vector of the power supply transient offset coefficient matrix are rearranged. According to the size of the eigenvalues ​​of the average vector of the power supply transient offset coefficient matrix, the first five largest eigenvalues ​​of the eigenvalues ​​of the average vector of the power supply transient offset coefficient matrix after the order is retained are selected as the main eigenvectors, and the retained eigenvectors are used to construct an eigenvector matrix, in which each column corresponds to an eigenvector, and then the eigenvectors of the power supply current fluctuation coefficient matrix are obtained.

[0035] It should be noted that the power supply current oscillation disturbance amount in this application refers to the degree of current waveform disturbance caused by oscillation during the power supply current output process. The power supply current oscillation disturbance amount is related to the power supply itself design, load changes and the instability of the power supply operation.

[0036] In addition, it should be noted that determining the power supply transient offset coefficient in the present application can identify the trend and degree of instantaneous changes in current, and determining the power supply current oscillation disturbance amount helps to identify the instability of the current, and then analyze the instantaneous changes and oscillations of the current, which helps to make the output fluctuation control system of the power supply current respond to changes more quickly, thereby improving the stability and reliability of the output fluctuation control system of the power supply current.

[0037] In step 103, a current aliasing amplitude variation sequence is determined according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix, a power supply current jump bias rate is determined through the current aliasing amplitude variation sequence, and then a current amplitude modulation potential value is determined according to the power supply current jump bias rate.

[0038] In some embodiments, determining the current aliasing amplitude variation sequence according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix can be implemented by the following steps: Determining a current disturbance entropy of the power supply current oscillation disturbance amount; Determining a current intermittent vector value of the power supply current interharmonic transient matrix; A current aliasing amplitude variation sequence is determined according to the current disturbance entropy and the current intermittent vector value.

[0039] In a specific implementation, the current disturbance entropy of the power supply current oscillation disturbance is determined. In some embodiments, the current disturbance factor is determined by a large number of power supply current output oscillation experiments. The value range of the current disturbance factor is usually between 0.3 and 0.6. In this embodiment, the median of the value range of the current disturbance factor, that is, 0.45, is taken as the current disturbance factor. The values ​​of the power supply current oscillation disturbance are averaged to obtain an average power supply current oscillation disturbance. The average power supply current oscillation disturbance represents the average oscillation disturbance level of the power supply current oscillation disturbance. The values ​​of the power supply current oscillation disturbance are then logarithmized with the natural number e as the base to obtain the disturbance intensity of the power supply current oscillation disturbance. The disturbance intensity of the power supply current oscillation disturbance represents the degree of oscillation or fluctuation in the current waveform. , which describes the degree of deviation of the current waveform from a stable DC or AC reference. The greater the disturbance intensity, the more unstable the current waveform is, and it may contain more harmonic components or other forms of fluctuations. The average power supply current oscillation disturbance is divided by the sum of the disturbance intensities of the power supply current oscillation disturbances, and the result is used as the current disturbance entropy; determine the current intermittent vector value of the power supply current interharmonic transient matrix. In some embodiments, the power supply current interharmonic transient matrix is ​​multiplied by the eigenvector of the power supply current fluctuation coefficient matrix, and the current frequency deviation distortion value at each time point is taken as a vector, which is multiplied by the mean of the eigenvector of the power supply current fluctuation coefficient matrix, and the result is used as the current intermittent vector value of the power supply current interharmonic transient matrix. For example, the current frequency deviation distortion value in the power supply current interharmonic transient matrix is , the mean of the eigenvector of the power supply current fluctuation coefficient matrix is , perform dot product on the two vectors, and use the result as the current intermittent vector value of the power supply current interharmonic transient matrix; determine the current aliasing amplitude variation sequence according to the current disturbance entropy and the current intermittent vector value, multiply the current disturbance entropy by the current intermittent vector value respectively to obtain the current aliasing amplitude variation value, repeat the above steps to obtain all the current aliasing amplitude variation values, and arrange all the current aliasing amplitude variation values ​​in ascending order to obtain the current aliasing amplitude variation sequence.

[0040] It should be noted that the current disturbance entropy in this step refers to the degree of chaos of the disturbance generated by the power supply output current. The larger the current disturbance entropy, the greater the degree of interference with the power supply output current. The current intermittent vector value refers to the degree of change in the current frequency deviation distortion value within a certain period of time when the power supply current is output and the duration of the change. The current aliasing amplitude variation sequence in this application refers to a sequence composed of the waveform and frequency changes of the output current after an oscillation disturbance is generated in the power supply current output, reflecting the degree of change of the output current during the oscillation disturbance process.

[0041] In some embodiments, reference Figure 2As shown in FIG. 1 , this figure is a schematic diagram of an exemplary process of determining a power supply current transition bias rate according to some embodiments of the present application. In this embodiment, determining the power supply current transition bias rate can be implemented by using the following steps: In step 1031, the power supply current aliasing transition amount is determined according to the current aliasing amplitude variation sequence; In step 1032, a power supply current transition bias factor is determined; In step 1033, the power supply current embedding amount is determined according to the power supply current oscillation disturbance amount; In step 1034, a power supply current transition bias rate is determined according to the power supply current aliasing transition amount, the power supply current transition bias factor, and the power supply current embedding amount.

[0042] In a specific implementation, the power supply current aliasing transition amount is determined according to the current aliasing amplitude variation sequence. In some embodiments, the current aliasing amplitude variation sequence is divided by setting a time window to obtain a current aliasing amplitude variation subsequence corresponding to the same time window, the length of the time window is set to 3ms, and the values ​​in the current aliasing amplitude variation sequence are divided according to the time length of 3ms. The above steps are repeated to obtain current aliasing amplitude variation subsequences corresponding to multiple time windows, and the values ​​in the subsequence corresponding to each time window are averaged to obtain the current aliasing amplitude variation median within the time window, and the average of all current aliasing amplitude variation medians is calculated, and the obtained result is used as the power supply current aliasing transition amount; determine the power supply current transition bias factor. In some embodiments, the power supply current transition bias factor can be determined by a power supply current output waveform transition test. In the present application, the value of the power supply current jump bias factor is set to 0.68. In other embodiments, the power supply current jump bias factor can also be determined in other ways, which are not limited here; the power supply current embedding inclination is determined by the power supply current oscillation disturbance, the values ​​of all source current oscillation disturbances are arranged in ascending order, the maximum and minimum values ​​of the values ​​in the source current oscillation disturbance are selected, the average of the maximum and minimum values ​​is obtained, the logarithm of the average with the natural number e as the base is taken and multiplied by the variance of the source current oscillation disturbance, and the result is taken as the power supply current embedding inclination, the square of the power supply current aliasing jump amount is subtracted from the square of the power supply current embedding inclination, and the result is then cubed and the result is taken as the power supply current jump bias rate.

[0043] It should be noted that the power supply current aliasing jump amount in this step refers to the synchronous change amount between the peak and valley values ​​of the waveform after the aliasing of the current waveform change and the disturbance waveform change of the power supply output current during the oscillation disturbance process. The smaller the synchronous change amount, the smaller the interference to the power supply output current. The power supply current jump bias factor refers to the difference in the degree of current output fluctuation after the current output is disturbed to the interference-free state. The power supply current embedded inclination refers to the deviation between the current waveform change flowing into the receiving end of the power-consuming equipment after the power supply current is disturbed during the output process and the rated current waveform change. The smaller the deviation, the more stable the power supply current output.

[0044] In some embodiments, determining the current amplitude modulation potential value according to the power supply current jump bias rate can be implemented by using the following steps: Get the first of all power supply current oscillation disturbances The value of the power supply current oscillation disturbance ; Get the first The first The feature vector value ; Obtain the concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix ; According to the first The value of the power supply current oscillation disturbance , the power supply current fluctuation coefficient matrix The first The feature vector value and the concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix Determine the current amplitude modulation potential value, wherein the current amplitude modulation potential value can be determined by the following formula: in, Indicates the current amplitude modulation potential value, Indicates the discrete degree of each power supply current oscillation disturbance value, Indicates The first The feature vector value The concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix The dispersion between Indicates The first The feature vector value The concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix The skewness between .

[0045] It should be noted that the current amplitude modulation concentration potential value in the present application indicates that the waveform amplitude of the current in the power supply current output control changes irregularly after being affected by the oscillation, and then it needs to be amplitude modulated, and the compensation amount of the current waveform fluctuation after modulation. The smaller the compensation amount, the more stable the power supply current output is and the less interference is suffered; the concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix can be determined according to the variance of the current frequency deviation distortion value of each column, and the first The first The feature vector value The concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix The dispersion between is used to measure the dispersion of the output current distortion points. The smaller the dispersion, the less interference the output current is subject to. The first The feature vector value The concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix The skewness between is used to measure the difference between the current frequency deviation distortion value and the average current change. The smaller the difference, the smoother the power supply current output.

[0046] In addition, in some embodiments, by determining the current aliasing amplitude change sequence, information on the current oscillation disturbance and the current interharmonic transient matrix can be obtained, which is helpful for analyzing the current amplitude change and the degree of change of the current fluctuation under the aliasing state of the harmonic sequence. Determining the power supply current jump bias rate can obtain more accurate control parameters, thereby more effectively performing fluctuation control, thereby enabling the output fluctuation control system of the power supply current to more quickly identify the impact of fluctuation changes and improve the efficiency of the output fluctuation control of the power supply current.

[0047] In step 104, the current hysteresis offset factor is extracted from the output current frequency deviation distortion data, the power frequency freewheeling impact is determined from the current amplitude modulation potential value, and then the power supply output steady-state harmony is determined according to the power frequency freewheeling impact and the current hysteresis offset factor.

[0048] In specific implementation, the current hysteresis offset factor is extracted through the output current frequency offset distortion data. In some embodiments, the output current frequency offset distortion data is arranged in ascending order, and the second output current frequency offset distortion data is added to the first output current frequency offset distortion data to obtain a first current hysteresis amount. Then, the second output current frequency offset distortion data is subtracted from the third output current frequency offset distortion data to obtain a second current hysteresis amount. The above steps are repeated to obtain all current hysteresis amounts. The sum of all current hysteresis amounts is subtracted from the median of the extreme values ​​of the current hysteresis amounts and the result is squared, and the result is used as the current hysteresis offset factor. In other embodiments, the current hysteresis offset factor can also be extracted in other ways, which are not limited here.

[0049] It should be noted that the current hysteresis offset factor in the present application refers to a parameter of the phase difference between the disturbed current waveform and the undisturbed current waveform. The current hysteresis offset factor indicates the degree to which the phase of the disturbed current lags or leads the undisturbed current. The lag and lead cause uncoordinated changes in the power supply current output disturbance, which is usually expressed as an angle. In the power supply current output, the phase difference between the disturbed current waveform and the undisturbed current waveform is caused by components such as inductance, resistance, and capacitance, resulting in the disturbed current waveform leading or lagging the undisturbed current waveform. The current hysteresis offset factor is an indicator used to quantify and describe this phase difference. When the disturbed current waveform leads the undisturbed current waveform, the angle of the phase difference is expressed as a positive value; and when the disturbed current waveform lags behind the undisturbed current waveform, the angle of the phase difference is expressed as a negative value.

[0050] In specific implementation, the power frequency follow-on impact amount is determined by the current amplitude modulation potential value. In some embodiments, a power frequency follow-on factor is set. The power frequency follow-on factor can be determined based on a large number of current output waveform experiments. In this step, the power frequency follow-on factor is set to 0.6475. In other embodiments, other methods can also be used to determine the power frequency follow-on factor. There is no limitation here. The power frequency follow-on factor refers to the standard power supply frequency, usually 50 Hz or 60 Hz. In a short period of time, for example, 20s, the connection between the current output by the power supply and the rated current fluctuation change is used to calibrate the change in output current due to oscillation disturbance; take the logarithm of the current amplitude modulation potential value with the natural number e as the base, multiply it by 2 and then take the square root, multiply the result by the power frequency follow-on factor, and use the result as the power frequency follow-on impact amount.

[0051] It should be noted that the power frequency freewheeling impulse in this step represents a measure of the sudden increase or decrease in the current waveform of the power supply current output after being disturbed by an oscillation in a short period of time (such as within 0.5s), that is, a measure of the degree to which the current waveform changes from a smooth increase or decrease to a sudden increase or decrease.

[0052] In some embodiments, determining the steady-state harmony of the power supply output according to the power frequency freewheeling impact amount and the current hysteresis offset factor can be achieved by using the following steps: Get the current hysteresis offset factor ; Obtain the power frequency continuous current impact amount ; Obtain the concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix ; Get the first The first The feature vector value ; Obtain the current intermittent vector value and the power supply current fluctuation coefficient matrix The harmonic value of the power supply current fluctuation coefficient in the column ; According to the said Error value in column Determine the harmonic center tendency of current fluctuations ; According to the current hysteresis offset factor , the power frequency continuous current impact , the concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix , the power supply current fluctuation coefficient matrix The first The feature vector value , the current intermittent vector value and the power supply current fluctuation coefficient matrix The harmonic value of the power supply current fluctuation coefficient in the column and the Error value in column Determine the harmonic center tendency of current fluctuations Determine the power supply output steady-state harmony, wherein the power supply output steady-state harmony can be determined by the following formula: in, Indicates the steady-state harmony of the power supply output. Represents the number of power supply current fluctuation coefficients in the power supply current fluctuation coefficient matrix, Represents the current fluctuation parameter corresponding to the column in the power supply current fluctuation coefficient matrix, Indicates The first The feature vector value The concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix The dispersion between , Indicates The harmonic value of the power supply current fluctuation coefficient in the column Harmony center tendency with current fluctuation The harmonic volatility between .

[0053] It should be noted that the steady-state harmony of the power supply output in this application refers to the ability of the power supply output to adjust the current fluctuation caused by the oscillation disturbance under steady-state working conditions. The output of the source needs to be maintained at a steady-state level to meet the load demand, and when an external disturbance occurs, the power supply should be able to adjust quickly to maintain output stability. The current intermittent vector value is related to the power supply current fluctuation coefficient matrix. The harmonic value of the power supply current fluctuation coefficient in the column It refers to the current intermittent vector value and the The difference in the power supply current fluctuation coefficient in the column, the harmonic quantity represents the difference between the current fluctuation coefficient and the current intermittent vector value. The current fluctuation parameter corresponding to the column in the power supply current fluctuation coefficient matrix is ​​a parameter used to measure the degree of change of the current fluctuation, which is usually determined according to the maximum slope of the current change curve. The harmonic fluctuation rate is used to measure the difference between the harmonic quantity of the power supply current fluctuation coefficient and the harmonic center tendency of the current fluctuation. The harmonic center tendency of the current fluctuation represents the average change level of the harmonic quantity of the power supply current fluctuation coefficient. The larger the harmonic center tendency of the current fluctuation, the more obvious the fluctuation change of the power supply current output.

[0054] In addition, it should be noted that by determining the amount of power frequency follow-through impact, we can fully understand the spectral characteristics, phase relationship and response to the power frequency follow-through impact of the current waveform. Determining the current hysteresis offset factor can optimize the current waveform, reduce the harmonic components in the spectrum, and reduce the degree of current hysteresis, which helps to improve the quality of the current. Determining the steady-state harmony of the power supply output can improve the response speed and stability of the output fluctuation control system of the power supply current, thereby improving the reliability of the output fluctuation control of the power supply current.

[0055] In step 105, the power supply output steady-state harmony is compared with a preset current elastic fluctuation threshold value. If the power supply output steady-state harmony is greater than the preset current elastic fluctuation threshold value, a power supply output fluctuation control warning is triggered.

[0056] In specific implementation, if the steady-state harmony of the power supply output is greater than the preset current elastic fluctuation threshold value, the power supply output fluctuation control warning is triggered, the monitored current power supply output mode is marked as an output unstable mode, and the unstable time and fluctuation amplitude of the current power supply output are sent to the output fluctuation control center of the power supply current, and the power supply output fluctuation control warning response is triggered at the same time. If the steady-state harmony of the power supply output is less than or equal to the preset current elastic fluctuation threshold value, the current power supply output is determined to be stable, and the current power supply output mode is marked as a stable mode, that is, the power supply output end can provide a stable and continuous output. At this time, the output fluctuation control center of the power supply current continuously monitors the power supply output, the power supply output fluctuation control warning is in a silent state, and the power supply output control continues to be monitored.

[0057] It should be noted that the preset current elastic fluctuation threshold value in the present application refers to the elastic fluctuation of current caused by external factors in the power supply output of the power system. The elastic fluctuation is the current fluctuation caused by load changes, power supply instability, system failure or other factors, that is, the allowable current fluctuation range of the power supply output operation process. In some embodiments, the allowable fluctuation range of the power supply output current can be determined based on the delay result data of a large number of power supply output current fluctuation tests. The setting of the allowable fluctuation range of the power supply output current is not limited here. The preset current elastic fluctuation threshold value can provide a measure for the output fluctuation control of the power supply current, thereby improving the reliability of the output fluctuation control of the power supply current.

[0058] In addition, in another aspect of the present application, in some embodiments, the present application provides an output fluctuation control device for power supply current, referring to Figure 3 , which is a schematic diagram of exemplary hardware and / or software of an output fluctuation control device for power supply current according to some embodiments of the present application, the output fluctuation control device 300 for power supply current may include: an output current frequency deviation distortion data determination module 301, a power supply current oscillation disturbance amount determination module 302, a current amplitude modulation potential value determination module 303, a power supply output steady-state harmony degree determination module 304 and a power supply output early warning control module 305, which are respectively described as follows: Output current frequency deviation distortion data determination module 301, in the present application, the output current frequency deviation distortion data determination module 301 is mainly used to obtain the output current frequency deviation distortion data of the power supply after starting the current fluctuation monitoring of the power supply; A power supply current oscillation disturbance amount determination module 302, in the present application, the power supply current oscillation disturbance amount determination module 302 is mainly used to determine the power supply current interharmonic transient matrix according to the output current frequency deviation distortion data, determine the power supply transient offset coefficient through the power supply current interharmonic transient matrix, and determine the power supply current oscillation disturbance amount by the power supply transient offset coefficient; A current amplitude modulation potential value determination module 303, in the present application, the current amplitude modulation potential value determination module 303 is mainly used to determine the current aliasing amplitude change sequence according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix, determine the power supply current jump bias rate through the current aliasing amplitude change sequence, and determine the current amplitude modulation potential value according to the power supply current jump bias rate; A power supply output steady-state harmony determination module 304, in the present application, the power supply output steady-state harmony determination module 304 is mainly used to extract the current hysteresis imbalance factor through the output current frequency deviation distortion data, determine the power frequency afterflow impact amount from the current amplitude modulation potential value, and determine the power supply output steady-state harmony according to the power frequency afterflow impact amount and the current hysteresis imbalance factor; The power supply output early warning control module 305, in the present application, is mainly used to compare the steady-state harmony of the power supply output with a preset current elastic fluctuation threshold value. If the steady-state harmony of the power supply output is greater than the preset current elastic fluctuation threshold value, a power supply output fluctuation control early warning is triggered.

[0059] In addition, the present application also provides a computer device, which includes a memory and a processor, wherein the memory stores codes, and the processor is configured to obtain the codes and execute the above-mentioned power supply current output fluctuation control method.

[0060] In some embodiments, reference Figure 4 , which is a schematic diagram of the structure of a computer device for implementing a method for controlling the output fluctuation of a power supply current according to some embodiments of the present application. The method for controlling the output fluctuation of a power supply current in the above embodiment can be Figure 4 The computer device 400 shown in the figure is implemented, and the computer device 400 includes at least one processor 401, a communication bus 402, a memory 403 and at least one communication interface 404.

[0061] The processor 401 may be a general-purpose central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more executions of the output fluctuation control method for controlling the power supply current in the present application.

[0062] Communication bus 402 may include a pathway for transmitting information between the above-mentioned components.

[0063] The memory 403 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compressed optical disc, a laser disc, an optical disc, a digital versatile disc, a Blu-ray disc, etc.), a magnetic disk or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. The memory 403 may exist independently and be connected to the processor 401 via the communication bus 402. The memory 403 may also be integrated with the processor 401.

[0064] The memory 403 is used to store the program code for executing the solution of the present application, and the execution is controlled by the processor 401. The processor 401 is used to execute the program code stored in the memory 403. The program code may include one or more software modules. The output fluctuation control method of the power supply current in the above embodiment can be implemented by the processor 401 and one or more software modules in the program code in the memory 403.

[0065] The communication interface 404 uses any transceiver or other device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.

[0066] In a specific implementation, as an embodiment, a computer device may include multiple processors, each of which may be a single-CPU processor or a multi-CPU processor. The processor here may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0067] The above-mentioned computer device may be a general-purpose computer device or a special-purpose computer device. In a specific implementation, the computer device may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device or an embedded device. The embodiment of the present application does not limit the type of computer device.

[0068] In addition, the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned power supply current output fluctuation control method is implemented.

[0069] In summary, in the output fluctuation control device and control method of the power supply current disclosed in the embodiment of the present application, firstly, determining the power supply transient offset coefficient can identify the trend and degree of the instantaneous change of the current, determining the power supply current oscillation disturbance amount is helpful to identify the instability of the current, and improving the stability and reliability of the output fluctuation control system of the power supply current, by determining the current aliasing amplitude change sequence, the current oscillation disturbance amount and the current interharmonic transient matrix information can be obtained, which is helpful to analyze the amplitude change of the current and the degree of change of the current fluctuation under the aliasing state of the harmonic sequence, and determining the power supply current jump bias rate can obtain more accurate control parameters, so as to more effectively perform fluctuation control, thereby enabling the output fluctuation control system of the power supply current to more quickly identify the influence of fluctuation changes, and improve the efficiency of the output fluctuation control of the power supply current, by determining the power frequency continuous current impact amount, the spectrum characteristics, phase relationship and response to the power frequency continuous current impact of the current waveform can be fully understood, and the current hysteresis imbalance factor can be determined to optimize the current waveform, reduce the harmonic components in the spectrum, reduce the hysteresis degree of the current, and help improve the quality of the current, and determine the power supply output steady-state harmony, which can improve the response speed and stability of the output fluctuation control system of the power supply current, thereby improving the reliability of the output fluctuation control of the power supply current.

[0070] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0071] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for controlling output fluctuation of power supply current, characterized in that: The steps include: Start the current fluctuation monitoring of the power supply and obtain the output current frequency deviation distortion data of the power supply; Determine a power supply current interharmonic transient matrix according to the output current frequency deviation distortion data, determine a power supply transient offset coefficient through the power supply current interharmonic transient matrix, and then determine a power supply current oscillation disturbance amount through the power supply transient offset coefficient; Determine a current aliasing amplitude variation sequence according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix, determine a power supply current jump bias rate through the current aliasing amplitude variation sequence, and then determine a current amplitude modulation potential value according to the power supply current jump bias rate; Extracting the current hysteresis and imbalance factor through the output current frequency deviation and distortion data, determining the power frequency freewheeling impact amount through the current amplitude modulation potential value, and then determining the power supply output steady-state harmony degree according to the power frequency freewheeling impact amount and the current hysteresis and imbalance factor; The power supply output steady-state harmony degree is compared with a preset current elastic fluctuation threshold value. If the power supply output steady-state harmony degree is greater than the preset current elastic fluctuation threshold value, a power supply output fluctuation control warning is triggered.

2. The method according to claim 1, characterized in that Determining the power supply current interharmonic transient matrix according to the output current frequency deviation distortion data specifically includes: Performing equal-time division on the output current frequency offset distortion data to obtain an output current frequency offset distortion sequence; A power supply current interharmonic transient matrix is ​​determined according to the output current frequency deviation distortion sequence.

3. The method according to claim 1, characterized in that Determining the power supply transient offset coefficient by using the power supply current interharmonic transient matrix specifically includes: Determining the concentration and dispersion of the current frequency deviation distortion values ​​according to the current frequency deviation distortion values ​​in the power supply current interharmonic transient matrix; The power supply transient offset coefficient is determined according to the concentration of the current frequency offset distortion value and the dispersion of the current frequency offset distortion value.

4. The method according to claim 1, characterized in that Determining the current aliasing amplitude variation sequence according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix specifically includes: Determining a current disturbance entropy of the power supply current oscillation disturbance amount; Determining a current intermittent vector value of the power supply current interharmonic transient matrix; A current aliasing amplitude variation sequence is determined according to the current disturbance entropy and the current intermittent vector value.

5. The method according to claim 1, characterized in that Determining the power supply current jump bias rate through the current aliasing amplitude change sequence specifically includes: Determining the power supply current aliasing transition amount according to the current aliasing amplitude variation sequence; Determine the power supply current jump bias factor; Determining the power supply current embedding amount by the power supply current oscillation disturbance amount; A power supply current transition bias rate is determined according to the power supply current aliasing transition amount, the power supply current transition bias factor and the power supply current embedding amount.

6. The method according to claim 1, characterized in that Determining the current amplitude modulation potential value according to the power supply current jump bias rate specifically includes: Get the first of all power supply current oscillation disturbances The value of the power supply current oscillation disturbance ; Get the first The first The feature vector value ; Obtain the concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix ; According to the first The value of the power supply current oscillation disturbance , the power supply current fluctuation coefficient matrix The first The feature vector value and the concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix Determine the current amplitude modulation potential value, wherein the current amplitude modulation potential value is determined by the following formula: in, Indicates the current amplitude modulation potential value, Indicates the discrete degree of each power supply current oscillation disturbance value, Indicates The first The feature vector value The concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix The dispersion between Indicates The first The feature vector value The concentration trend of the current frequency deviation distortion value of each column in the power supply current interharmonic transient matrix The skewness between .

7. The method according to claim 1, characterized in that Also includes: If the power output steady-state harmony is less than or equal to the preset current elastic fluctuation threshold value, it is determined that the current power output is stable, and the current power output mode is marked as a stable mode.

8. A power supply current output fluctuation control device, characterized in that: Included are: An output current frequency deviation distortion data determination module is used to obtain the output current frequency deviation distortion data of the power supply after starting the current fluctuation monitoring of the power supply; A power supply current oscillation disturbance amount determination module, used to determine a power supply current interharmonic transient matrix according to the output current frequency deviation distortion data, determine a power supply transient offset coefficient through the power supply current interharmonic transient matrix, and determine a power supply current oscillation disturbance amount through the power supply transient offset coefficient; A current amplitude modulation potential value determination module is used to determine a current aliasing amplitude variation sequence according to the power supply current oscillation disturbance amount and the power supply current interharmonic transient matrix, determine a power supply current jump bias rate through the current aliasing amplitude variation sequence, and determine a current amplitude modulation potential value according to the power supply current jump bias rate; A power supply output steady-state harmony determination module, used to extract a current hysteresis imbalance factor through the output current frequency deviation distortion data, determine the power frequency follow-through impact amount from the current amplitude modulation potential value, and determine the power supply output steady-state harmony according to the power frequency follow-through impact amount and the current hysteresis imbalance factor; The power output early warning control module is used to compare the steady-state harmony of the power output with a preset current elastic fluctuation threshold value. If the steady-state harmony of the power output is greater than the preset current elastic fluctuation threshold value, a power output fluctuation control early warning is triggered.

9. A computer device, characterized in that: The computer device comprises a memory and a processor, wherein the memory stores codes, and the processor is configured to obtain the codes and execute the output fluctuation control method of the power supply current according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for controlling the output fluctuation of a power supply current according to any one of claims 1 to 7 is implemented.

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