CN118399713B - Adjustable switching power supply control method based on digital signal processing - Google Patents
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Abstract
The invention relates to the technical field of data processing, in particular to an adjustable switch power supply control method based on digital signal processing, which comprises the following steps: the method comprises the steps of obtaining an input voltage data sequence and an output voltage data sequence of an adjustable switching power supply and a monitoring voltage data sequence and rated voltage of each load device within a period of time, obtaining power utilization abnormality of each load device, obtaining load change complexity of the load devices in a switching power supply network, obtaining real-time responsivity of the output voltage of the load device load change in the switching power supply network, obtaining control stability of the adjustable switching power supply, and regulating and controlling the switching power supply by taking the control stability of the adjustable switching power supply as a regulating and controlling parameter. According to the invention, the control stability of the adjustable switch power supply is analyzed, and the accurate adjustment and stable control of the switch power supply are performed, so that the performance and reliability of the adjustable switch power supply are improved.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to an adjustable switching power supply control method based on digital signal processing.
Background
As a high-efficiency and flexible power conversion device, a switching power supply is widely used in modern electronic systems, and an adjustable switching power supply can convert alternating current or direct current into another direct current due to the adjustable characteristics of output voltage and current of the switching power supply, and generally has a switching mode of high frequency. The adjustable switch power mode method refers to a switch power management technology capable of changing the output characteristic of a power supply by adjusting control parameters. An adjustable switch power supply control method based on digital signal processing is a technology for realizing switch power supply control by utilizing a Data Signal Processor (DSP) or other digital controllers.
The existing problems are as follows: the precision of the traditional analog control method is influenced by parameters of analog circuit devices, high-precision power output adjustment is difficult to realize, particularly, the method is more outstanding in high-frequency and high-power application, and a switching power supply is often influenced by external interference such as input voltage fluctuation, load change and the like, so that output fluctuation or out of control is easily caused, and the accuracy and precision of an adjustable switching power supply control method based on digital signal processing are further reduced.
Disclosure of Invention
The invention provides an adjustable switch power supply control method based on digital signal processing, which aims to solve the existing problems.
The invention discloses an adjustable switch power supply control method based on digital signal processing, which adopts the following technical scheme:
An embodiment of the invention provides an adjustable switching power supply control method based on digital signal processing, which comprises the following steps:
Acquiring an input voltage data sequence and an output voltage data sequence of an adjustable switching power supply within a preset time period, and monitoring voltage data sequences and rated voltages of each load device;
Obtaining the power consumption abnormality degree of each load device according to the same quantity of the monitoring voltage data in the monitoring voltage data sequence of each load device and the difference between the monitoring voltage data and the rated voltage; obtaining the load change complexity of load equipment in a switching power supply network according to the power consumption abnormality degree distribution among the load equipment;
Obtaining real-time responsivity of output voltage of load equipment load change in a switching power supply network according to the difference between the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequence of each load equipment and the load change complexity;
According to the difference between the input voltage data sequence and the output voltage data sequence of the adjustable switching power supply and the real-time responsivity of the output voltage, the control stability of the adjustable switching power supply is obtained; and regulating and controlling the switching power supply by taking the control stability of the adjustable switching power supply as a regulating and controlling parameter.
Further, the electricity utilization abnormality degree of each load device comprises the following specific steps:
In the monitoring voltage data sequence of each load device, recording all the same monitoring voltage data as one type of monitoring voltage data;
Obtaining the voltage fluctuation degree of the load equipment according to the difference between the distribution probabilities of all the monitoring voltage data;
Obtaining the voltage supply instability degree of the load equipment according to the difference between the monitoring voltage data in the monitoring voltage data sequence and the rated voltage of the load equipment;
Determining the power utilization abnormality degree of each load device according to the voltage fluctuation degree and the voltage supply instability degree of each load device; the voltage fluctuation degree and the voltage supply instability degree are positively correlated with the electricity utilization anomaly.
Further, the voltage fluctuation degree of the load equipment comprises the following specific steps:
and recording the average value of the differences of the distribution probabilities of all any two types of monitoring voltage data as the voltage fluctuation degree of the load equipment.
Further, the voltage supply instability degree of the load device comprises the following specific steps:
and recording the average value of the differences between all monitoring voltage data in the monitoring voltage data sequence and the rated voltage of the load equipment as the voltage supply instability degree of the load equipment.
Further, the load change complexity of the load equipment in the switching power supply network comprises the following specific steps:
obtaining the electricity consumption difference degree of the load equipment according to the difference between the electricity consumption abnormality degrees of the load equipment;
the average value of the electricity utilization abnormal degrees of all the load devices is recorded as the average electricity utilization abnormal degree of the load devices;
Determining the load change complexity of the load equipment in the switching power supply network according to the power consumption difference degree of the load equipment and the average power consumption anomaly degree of the load equipment; and the power consumption difference degree of the load equipment and the average power consumption abnormality degree of the load equipment are positively correlated with the load change complexity.
Further, the power utilization difference degree of the load equipment comprises the following specific steps:
And (3) recording the average value of the difference of the electricity utilization abnormality degree of all any two load devices as the electricity utilization difference degree of the load devices.
Further, the real-time responsivity of the output voltage of the load change of the load equipment in the switching power supply network comprises the following specific steps:
obtaining the input and output voltage similarity of the load equipment according to the difference between the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequence of each load equipment;
determining real-time responsivity of output voltage of load equipment load change in the switching power supply network according to the similarity of input and output voltage of the load equipment and the load change complexity of the load equipment in the switching power supply network; the input and output voltage similarity of the load equipment is inversely related to the real-time responsivity of the output voltage; the load change complexity is positively correlated with the output voltage real-time responsiveness.
Further, the input and output voltage similarity of the load device comprises the following specific steps:
and recording the average value of the difference degree of the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequences of all the load devices as the input and output voltage similarity of the load devices.
Further, the control stability of the adjustable switching power supply comprises the following specific steps:
obtaining the input and output voltage difference degree of the adjustable switching power supply according to the input voltage data sequence of the adjustable switching power supply and the difference between the input voltage data and the output voltage data in the output voltage data sequence;
Determining the control stability of the adjustable switching power supply according to the input and output voltage difference degree of the adjustable switching power supply and the real-time responsivity of the output voltage of the load change of load equipment in the switching power supply network; the input and output voltage difference degree and the real-time response degree of the output voltage of the adjustable switch power supply are positively correlated with the control stability of the adjustable switch power supply.
Further, the adjustable switching power supply input/output voltage difference degree comprises the following specific steps:
and recording the average value of the differences of the input voltage data and the output voltage data of the adjustable switching power supply under all the same sequence values in the input voltage data sequence and the output voltage data sequence as the input and output voltage difference degree of the adjustable switching power supply.
The technical scheme of the invention has the beneficial effects that:
In the embodiment of the invention, the input voltage data sequence and the output voltage data sequence of the adjustable switch power supply and the monitoring voltage data sequence and the rated voltage of each load device in a period of time are obtained to obtain the power utilization abnormality degree of each load device, so that the load change complexity of the load devices in the switch power supply network is obtained, and the power utilization abnormality conditions of all devices in the power supply network are comprehensively evaluated by analyzing the power utilization abnormality conditions of single load devices, so that the accuracy of the control stability acquisition of the follow-up adjustable switch power supply is ensured. The real-time responsivity of the output voltage of the load change of the load equipment in the switching power supply network is obtained, so that the control stability of the adjustable switching power supply is obtained, and the accuracy of the control stability acquisition is further ensured according to the difference between the output voltage data of the power supply and the monitoring voltage data of the load equipment and the difference analysis between the input and output voltage data of the power supply. And regulating and controlling the switching power supply by taking the control stability of the accurate and reliable adjustable switching power supply as a regulating and controlling parameter. The invention analyzes the control stability of the adjustable switch power supply to accurately adjust and stably control the switch power supply, thereby improving the performance and reliability of the adjustable switch power supply.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart showing the steps of a control method of an adjustable switching power supply based on digital signal processing;
fig. 2 is a schematic diagram of voltage input/output of the adjustable switch in the present embodiment.
Detailed Description
In order to further describe the technical means and effects adopted by the invention to achieve the preset aim, the following is a detailed description of specific implementation, structure, characteristics and effects of an adjustable switch power supply control method based on digital signal processing according to the invention with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" means that the embodiments are not necessarily the same. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
The following specifically describes a specific scheme of the adjustable switching power supply control method based on digital signal processing.
Referring to fig. 1, a flowchart of a step of a method for controlling an adjustable switching power supply based on digital signal processing according to an embodiment of the invention is shown, the method includes the following steps:
step S001: and acquiring an input voltage data sequence and an output voltage data sequence of the adjustable switching power supply within a preset time period, and monitoring voltage data sequences and rated voltages of each load device.
What needs to be described is: the basic idea of the adjustable switch power supply control method based on digital signal processing is to convert a traditional analog circuit into a digital control algorithm and accurately regulate and control a power supply switch by using a digital signal processor. Specifically, the digital controller monitors and analyzes factors such as input voltage, load change and the like in real time by sampling input and output signals and utilizing a digital algorithm so as to realize accurate regulation and stable control of output voltage. The main purpose of this embodiment is to implement accurate regulation and stable control of the switching power supply output by processing and analyzing the input signal in real time by a Digital Signal Processor (DSP).
And acquiring an input voltage data sequence and an output voltage data sequence of the adjustable switching power supply within a preset time period by using a voltage sensor, and monitoring voltage data sequences of each load device and rated voltage of each load device in a plurality of load devices corresponding to the adjustable switching power supply.
What needs to be described is: in this embodiment, the preset time period is 1 hour, that is, the data acquisition duration is 1 hour, and the acquisition frequency is 1 second and 1 time, which is described as an example. Various sensors are used in this embodiment to measure various parameters in the power supply network, for example, voltage sensors are used to measure input voltage and output voltage, and the sensors are connected to a digital signal processor or controller through an analog signal interface (analog input channel); converting an analog signal acquired by a sensor into a digital signal through an analog-to-digital converter (ADC) so that the digital signal processor can analyze and process the digital signal; the ADC is generally built in a digital signal processor, and accurate acquisition of monitoring data can be ensured by configuring proper sampling rate and resolution; the power supply network has more load devices, namely a plurality of load devices connected to the adjustable switch power supply, each load device has a rated voltage, the rated voltage value can be obtained according to the production instructions of different types of load devices or the data of a built-in system, and if other digital devices or sensor networks exist in the power supply network, the monitoring data can be transmitted to the digital signal processor through various bus communication protocols (such as SPI, I2C and the like). The voltage input/output of the adjustable switch is shown in fig. 2. In fig. 2, the power grid or the external power supply inputs voltages to the adjustable switches, which respectively output voltages to different load devices, such as a load 1, a load 2, a load 3 and a load 4. In this embodiment, the adjustable switching power supplies are in a parallel state, that is, the input voltages of each load device are equal, so that the output voltage data sequence of the adjustable switching power supplies is unique, and the monitoring voltage data sequence of the load device is the voltage data of the load device when the load device operates.
Step S002: obtaining the power consumption abnormality degree of each load device according to the same quantity of the monitoring voltage data in the monitoring voltage data sequence of each load device and the difference between the monitoring voltage data and the rated voltage; and obtaining the load change complexity of the load equipment in the switching power supply network according to the power consumption abnormality distribution among the load equipment.
What needs to be described is: when the fluctuation of the voltage in the monitored voltage data sequence of the load equipment is severe and unstable voltage supply exists, the load equipment may not run under full load, and the equipment running efficiency is low, namely the power consumption abnormality degree of the load equipment is high, so that the power consumption abnormality degree of each load equipment can be obtained according to the same quantity of the monitored voltage data in the monitored voltage data sequence of each load equipment and the difference between the monitored voltage data and the rated voltage. Preferably, in one embodiment of the present invention, a method for acquiring a power consumption abnormality of a load device includes:
In the monitoring voltage data sequence of each load device, all the same monitoring voltage data are recorded as one type of monitoring voltage data. The ratio of the data quantity in each type of monitoring voltage data to the data quantity in the monitoring voltage data sequence is recorded as the distribution probability of each type of monitoring voltage data, wherein the calculation of the distribution probability is a well-known operation. The voltage fluctuation degree of the load equipment can be obtained according to the difference between the distribution probabilities of all kinds of monitoring voltage data. In the monitoring voltage data sequence of each load device, the voltage supply instability degree of the load device can be obtained according to the difference between the monitoring voltage data and the rated voltage of the load device. The product of the voltage fluctuation degree and the voltage supply instability degree of each load device is recorded as the electricity utilization abnormality degree of each load device.
What needs to be described is: when the distribution probability difference of all kinds of monitoring voltage data is larger, the voltage fluctuation amplitude of the load equipment is discrete, namely, certain difference exists in the voltage fluctuation at each moment, and the voltage fluctuation is more intense, namely, the voltage fluctuation degree of the load equipment is larger, and the electricity consumption is more abnormal. Preferably, in one embodiment of the present invention, a method for acquiring a voltage fluctuation degree of a load device includes:
In the monitoring voltage data sequence of each load device, calculating the absolute value of the difference value of the distribution probability of any two types of monitoring voltage data, and recording the average value of the absolute value of the difference value of the distribution probability of all any two types of monitoring voltage data as the voltage fluctuation degree of the load device.
What needs to be described is: when the difference between the monitored voltage data and the rated voltage is smaller, the voltage fluctuation of the load equipment is close to the rated voltage value, namely the load equipment is in a normal working state, and the power consumption is more normal, so that the larger the difference between the monitored voltage data and the rated voltage is, the unstable voltage supply is indicated. Preferably, in one embodiment of the present invention, a method for acquiring a voltage supply instability degree of a load device includes:
in the monitoring voltage data sequence of each load device, calculating the absolute value of the difference value between each monitoring voltage data and the rated voltage of the load device, and recording the average value of the absolute value of the difference value between all monitoring voltage data and the rated voltage of the load device as the voltage supply instability degree of the load device.
What needs to be described is: when a larger difference exists between the electricity consumption conditions of each load device and the electricity consumption anomaly degree of the load device is higher, the voltage fluctuation in the power supply network is abnormal, the output voltage of the adjustable switch power supply has an unstable condition, and therefore the electricity consumption behaviors of all the load devices are complex, namely the load change complexity of the load devices in the switch power supply network is larger. Preferably, in one embodiment of the present invention, a method for acquiring load change complexity of a load device in a switching power supply network includes:
And obtaining the electricity consumption difference degree of the load equipment according to the difference between the electricity consumption abnormality degrees of the load equipment. And (5) recording the average value of the electricity utilization abnormality of all the load devices as the average electricity utilization abnormality of the load devices. And (3) recording the product of the power utilization difference degree of the load equipment and the average power utilization anomaly degree of the load equipment as the load change complexity of the load equipment in the switching power supply network.
What needs to be described is: the larger the difference between the power consumption abnormality degrees of the load equipment is, the larger the difference between the power consumption conditions of the load equipment is, namely, the more abnormal the power consumption of part of the load equipment is. Preferably, in one embodiment of the present invention, the method for acquiring the degree of difference in power consumption of the load device includes:
calculating the absolute value of the difference value of the electricity utilization abnormal degree of any two load devices, and recording the average value of the absolute value of the difference value of the electricity utilization abnormal degree of all any two load devices as the electricity utilization difference degree of the load devices.
Step S003: and obtaining the real-time responsivity of the output voltage of the load device load change in the switching power supply network according to the difference between the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequence of each load device and the load change complexity.
What needs to be described is: in the control method of the adjustable switch power supply based on digital signal processing, the voltage stability of the output of the switch power supply is affected by the change of the load, and when the load changes, the output of the switch power supply needs to be adjusted to meet new load requirements. Therefore, when the load change conditions of all load devices in the switching power supply network are complex, the condition of real-time responsivity with the output voltage of the switching power supply needs to be considered, so as to judge the stable condition of the output voltage of the switching power supply. The real-time responsivity of the output voltage of the load device load change in the switching power supply network can be determined according to the difference between the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequence of each load device and the load change complexity of the load devices in the switching power supply network. Preferably, in one embodiment of the present invention, the method for acquiring real-time responsiveness of an output voltage includes:
and obtaining the input and output voltage similarity of the load equipment according to the difference between the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequence of each load equipment. And (3) recording the product of the inverse proportion value of the input and output voltage similarity of the load equipment and the load change complexity of the load equipment in the switching power supply network as the real-time responsivity of the output voltage of the load change of the load equipment in the switching power supply network.
Further to be described is: when the power consumption behavior of the load device is complex and the power supply voltage variation situation is dissimilar to the power consumption variation situation of the load device, namely, the larger the inverse proportion value of the input and output voltage similarity of the load device is, the greater the load variation complexity of the load device in the switch power supply network is, the more likely to be an unstable situation, and the more complicated the power consumption situation of all the load devices in the switch power supply network is caused, therefore, when the real-time response of the output voltage is larger, the more control and adjustment should be performed on the output voltage of the switch power supply, so that the output voltage is stable, and the more stable power consumption situation of all the load devices is achieved. A preferred embodiment of the inverse proportion value of the input/output voltage similarity of the load device is: taking the reciprocal of the input-output voltage similarity of the load device to perform inverse proportion mapping, another embodiment is as follows: input of load device input-output voltage similarity toInverse proportion mapping in whichThe present embodiment uses an exponential function based on natural constantsTo present the inverse proportional relationship and normalization process.
What needs to be described is: the smaller the difference between the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequence of each load device, the more similar the voltage fluctuation condition of the load device and the fluctuation condition of the power supply output voltage are, namely, the load change of the load device and the real-time responsiveness of the power supply output voltage are considered to be higher. Preferably, in one embodiment of the present invention, the method for obtaining the input/output voltage similarity of the load device includes:
Calculating the difference degree of the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequence of each load device, and recording the average value of the difference degree of the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequences of all the load devices as the input and output voltage similarity of the load devices.
Further to be described is: the mean square error is one of the common indicators for measuring the degree of difference between two data sequences, preferably, the mean square error of the two data sequences is used in this embodiment to represent the degree of difference between the output voltage data sequence of the adjustable switching power supply and the monitored voltage data sequence of each load device, and the greater the mean square error is, the greater the degree of difference is, alternatively, the root mean square error, the average percentage error and the correlation coefficient of the two data sequences can also be used to represent the degree of difference, which is described by way of example and is a well-known calculation.
Step S004: according to the difference between the input voltage data sequence and the output voltage data sequence of the adjustable switching power supply and the real-time responsivity of the output voltage, the control stability of the adjustable switching power supply is obtained; and regulating and controlling the switching power supply by taking the control stability of the adjustable switching power supply as a regulating and controlling parameter.
What needs to be described is: in the control method of the adjustable switch power supply based on digital signal processing, a certain relation exists between the output voltage and the input voltage of the switch power supply, and under the general condition, the output voltage of the switch power supply can be adjusted independently of the input voltage, which means that the input voltage changes, and the output voltage can also be kept stable; when the input voltage changes, the digital signal processor can adjust working parameters of the switching power supply in real time according to the collected sensor data, such as changing switching frequency, duty ratio and the like, so as to keep stability of output voltage, and control stability of the adjustable switching power supply can be obtained by combining real-time responsivity of the output voltage of load change of load equipment in the switching power supply network. Preferably, in one embodiment of the present invention, a method for obtaining control stability of an adjustable switching power supply includes:
And obtaining the input and output voltage difference degree of the adjustable switching power supply according to the input voltage data sequence of the adjustable switching power supply and the difference between the input voltage data and the output voltage data in the output voltage data sequence. And recording the product of the input and output voltage difference degree of the adjustable switching power supply and the real-time responsivity of the output voltage of the load change of the load equipment in the switching power supply network as the control stability of the adjustable switching power supply.
Further to be described is: when the degree of difference between the input voltage and the output voltage of the adjustable switching power supply is larger, and the real-time responsivity of the output voltage of the load equipment load change in the switching power supply network is larger, the real-time responsivity between the output voltage of the switching power supply and the load equipment is higher, and the synchronism with the input voltage is poorer, namely, the control effect of the switching power supply is poor, the control stability is poorer, and the control is more required.
What needs to be described is: when the difference between the input voltage data and the output voltage data in the same sequence value in the input voltage data sequence and the output voltage data sequence of the adjustable switch power supply is larger, the change of the input voltage and the change of the output voltage are not consistent, and if the output voltage is unstable in the power supply network, the situation that the input voltage is unstable is more likely to be caused. Preferably, in one embodiment of the present invention, the method for obtaining the degree of difference between the input voltage and the output voltage of the adjustable switching power supply includes:
calculating the absolute value of the difference value between the input voltage data and the output voltage data under the same sequence value in the input voltage data sequence and the output voltage data sequence of the adjustable switch power supply, and recording the average value of the absolute value of the difference value between the input voltage data and the output voltage data under all the same sequence value as the input and output voltage difference degree of the adjustable switch power supply.
What needs to be described is: the worse the control stability of the adjustable switch power supply is, the more the control is needed, so that the control stability of the adjustable switch power supply is used as a control parameter to control the output voltage of the switch power supply, and the stable control of the adjustable switch power supply is realized.
The control stability of the adjustable switching power supply is input to the PID controller, and a regulating instruction is output, which is a known technology, and a specific method is not described herein.
Further to be described is: PID controllers are a very common and well known type of controller used to control industrial processes, mechanical systems, and other various systems. The switching power supply is generally provided with a feedback loop, which monitors the output voltage and compares the output voltage with a set value, and feeds back a feedback result to the controller in combination with a control stability parameter to obtain a regulation command, so that the digital signal processor adjusts the working parameter of the switching power supply, such as a duty cycle, a switching frequency, etc., according to the feedback result to make the output voltage as close as possible to the set value, and when the input voltage fluctuates, the feedback control system rapidly responds and correspondingly adjusts the output of the switching power supply to offset the change of the input voltage, thereby maintaining the stability of the output voltage.
The present invention has been completed.
In summary, in the embodiment of the present invention, the input voltage data sequence and the output voltage data sequence of the adjustable switching power supply and the monitored voltage data sequence and the rated voltage of each load device within a period of time are obtained, so that the power consumption abnormality of each load device is obtained, the load change complexity of the load device in the switching power supply network is obtained, the real-time responsivity of the output voltage of the load device load change in the switching power supply network is obtained, the control stability of the adjustable switching power supply is obtained, and the switching power supply is regulated and controlled by using the control stability of the adjustable switching power supply as a regulation parameter. According to the invention, the control stability of the adjustable switch power supply is analyzed, and the accurate adjustment and stable control of the switch power supply are performed, so that the performance and reliability of the adjustable switch power supply are improved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the invention, but any modifications, equivalent substitutions, improvements, etc. within the principles of the present invention should be included in the scope of the present invention.
Claims (9)
1. An adjustable switch power supply control method based on digital signal processing is characterized by comprising the following steps:
Acquiring an input voltage data sequence and an output voltage data sequence of an adjustable switching power supply within a preset time period, and monitoring voltage data sequences and rated voltages of each load device;
Obtaining the power consumption abnormality degree of each load device according to the same quantity of the monitoring voltage data in the monitoring voltage data sequence of each load device and the difference between the monitoring voltage data and the rated voltage; obtaining the load change complexity of load equipment in a switching power supply network according to the power consumption abnormality degree distribution among the load equipment;
Obtaining real-time responsivity of output voltage of load equipment load change in a switching power supply network according to the difference between the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequence of each load equipment and the load change complexity;
According to the difference between the input voltage data sequence and the output voltage data sequence of the adjustable switching power supply and the real-time responsivity of the output voltage, the control stability of the adjustable switching power supply is obtained; the control stability of the adjustable switching power supply is used as a control parameter to control the switching power supply;
the control stability of the adjustable switch power supply comprises the following specific steps:
obtaining the input and output voltage difference degree of the adjustable switching power supply according to the input voltage data sequence of the adjustable switching power supply and the difference between the input voltage data and the output voltage data in the output voltage data sequence;
Determining the control stability of the adjustable switching power supply according to the input and output voltage difference degree of the adjustable switching power supply and the real-time responsivity of the output voltage of the load change of load equipment in the switching power supply network; the input and output voltage difference degree and the real-time response degree of the output voltage of the adjustable switch power supply are positively correlated with the control stability of the adjustable switch power supply.
2. The method for controlling an adjustable switching power supply based on digital signal processing according to claim 1, wherein the degree of power consumption abnormality of each load device comprises the following specific steps:
In the monitoring voltage data sequence of each load device, recording all the same monitoring voltage data as one type of monitoring voltage data;
Obtaining the voltage fluctuation degree of the load equipment according to the difference between the distribution probabilities of all the monitoring voltage data;
Obtaining the voltage supply instability degree of the load equipment according to the difference between the monitoring voltage data in the monitoring voltage data sequence and the rated voltage of the load equipment;
Determining the power utilization abnormality degree of each load device according to the voltage fluctuation degree and the voltage supply instability degree of each load device; the voltage fluctuation degree and the voltage supply instability degree are positively correlated with the electricity utilization anomaly.
3. The method for controlling an adjustable switching power supply based on digital signal processing according to claim 2, wherein the voltage fluctuation degree of the load device comprises the following specific steps:
and recording the average value of the differences of the distribution probabilities of all any two types of monitoring voltage data as the voltage fluctuation degree of the load equipment.
4. The method for controlling an adjustable switching power supply based on digital signal processing according to claim 2, wherein the voltage supply instability degree of the load device comprises the following specific steps:
and recording the average value of the differences between all monitoring voltage data in the monitoring voltage data sequence and the rated voltage of the load equipment as the voltage supply instability degree of the load equipment.
5. The method for controlling an adjustable switching power supply based on digital signal processing according to claim 1, wherein the complexity of load variation of load devices in the switching power supply network comprises the following specific steps:
obtaining the electricity consumption difference degree of the load equipment according to the difference between the electricity consumption abnormality degrees of the load equipment;
the average value of the electricity utilization abnormal degrees of all the load devices is recorded as the average electricity utilization abnormal degree of the load devices;
Determining the load change complexity of the load equipment in the switching power supply network according to the power consumption difference degree of the load equipment and the average power consumption anomaly degree of the load equipment; and the power consumption difference degree of the load equipment and the average power consumption abnormality degree of the load equipment are positively correlated with the load change complexity.
6. The method for controlling an adjustable switching power supply based on digital signal processing according to claim 5, wherein the degree of power consumption difference of the load device comprises the following specific steps:
And (3) recording the average value of the difference of the electricity utilization abnormality degree of all any two load devices as the electricity utilization difference degree of the load devices.
7. The method for controlling an adjustable switching power supply based on digital signal processing according to claim 1, wherein the real-time responsivity of the output voltage of the load change of the load device in the switching power supply network comprises the following specific steps:
obtaining the input and output voltage similarity of the load equipment according to the difference between the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequence of each load equipment;
determining real-time responsivity of output voltage of load equipment load change in the switching power supply network according to the similarity of input and output voltage of the load equipment and the load change complexity of the load equipment in the switching power supply network; the input and output voltage similarity of the load equipment is inversely related to the real-time responsivity of the output voltage; the load change complexity is positively correlated with the output voltage real-time responsiveness.
8. The method for controlling an adjustable switching power supply based on digital signal processing according to claim 7, wherein the input/output voltage similarity of the load device comprises the following specific steps:
and recording the average value of the difference degree of the output voltage data sequence of the adjustable switching power supply and the monitoring voltage data sequences of all the load devices as the input and output voltage similarity of the load devices.
9. The method for controlling an adjustable switching power supply based on digital signal processing according to claim 1, wherein the degree of difference between input and output voltages of the adjustable switching power supply comprises the following specific steps:
and recording the average value of the differences of the input voltage data and the output voltage data of the adjustable switching power supply under all the same sequence values in the input voltage data sequence and the output voltage data sequence as the input and output voltage difference degree of the adjustable switching power supply.
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| CN207638562U (en) * | 2017-11-07 | 2018-07-20 | 陕西亚成微电子股份有限公司 | A kind of Switching Power Supply fast-response control circuit |
| CN215300500U (en) * | 2021-04-30 | 2021-12-24 | 上海新进芯微电子有限公司 | Switching power supply error compensation circuit and switching power supply |
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| WO2015022097A1 (en) * | 2013-08-15 | 2015-02-19 | Conti Temic Microelectronic Gmbh | Characteristic-based feedforward control of changes in input voltage and output current in a switched mode power supply |
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| CN207638562U (en) * | 2017-11-07 | 2018-07-20 | 陕西亚成微电子股份有限公司 | A kind of Switching Power Supply fast-response control circuit |
| CN215300500U (en) * | 2021-04-30 | 2021-12-24 | 上海新进芯微电子有限公司 | Switching power supply error compensation circuit and switching power supply |
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