A voltage-stabilized and current-stabilized integrated power supply system

Abstract

The present invention relates to the field of power electronics technology, and specifically discloses an integrated power supply system with good voltage and current stabilization effects. During the monitoring period, real-time analysis is performed on the voltage data at the power supply input end. Among them, the voltage data at the power supply input end includes the ratio of the number of voltage abnormal regions and the ratio of the area of voltage abnormal regions, so as to obtain the voltage stability value at the power supply input end. Based on the voltage stability value at the power supply input end, the voltage stability value at the power supply input end is compared with the voltage stability threshold at the power supply input end. If the voltage stability value at the power supply input end is greater than or equal to the voltage stability threshold at the power supply input end, it indicates that the voltage fluctuation amplitude is relatively large, and a voltage instability signal at the power supply input end is generated. By calculating the ratio of the number of voltage abnormal regions and the area ratio, the voltage stability degree at the power supply input end is quantified, and the voltage stability at the power supply input end can be warned.

Description

Technical Field

[0001] The present invention relates to the field of power electronics technology, and particularly to a voltage and current stabilization integrated power supply system. Background Art

[0002] Power electronics technology combines electronics technology and control technology, and uses semiconductor switching devices to achieve the control and conversion of electrical energy. Through this technology, the power supply is managed to achieve precise control of the power supply state, ensuring that the output voltage and current remain stable under conditions such as load changes and input voltage fluctuations.

[0003] Chinese Patent Invention with Publication No. CN111725806A discloses an integrated control system for power supply command and allocation. At the other end of the power supply system, a main controller is electrically connected. The two ends of the main controller are respectively circuit-connected with a data acquisition module and a control execution module. One side of the main controller is respectively circuit-connected with a storage module and a power management module, and the other side of the main controller is respectively circuit-connected with a signal receiving module and a debugging user control module, enabling it to perform multi-functional allocation operations. And at one end of the power supply system, a coordinator is circuit-connected to effectively protect against main circuit open phase. An inverter is provided at one end of the power supply system to convert DC electrical energy into fixed-frequency and fixed-voltage or frequency-modulated and voltage-regulated alternating current. At the same time, a fuse is provided inside the power supply system to play a role in protecting the safe operation of the circuit.

[0004] However, it does not analyze the types of voltage anomalies, nor evaluate the degree of voltage anomalies, analyze the threat level posed by abnormal voltages to the entire power grid or equipment, and does not consider determining the initial time point of voltage anomalies to obtain the adjustment time range interval of abnormal voltages, and then use it as the time window for maintenance personnel to take countermeasures to ensure the stability of the power grid and the safety of equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a voltage and current stabilization integrated power supply system to solve the technical problems in the above background.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] In a first aspect, the present invention provides a voltage and current stabilization integrated power supply system, including the following modules:

[0008] Power data monitoring module: During the monitoring period, the voltage data at the power input end is analyzed in real time. Among them, the voltage data at the power input end includes the ratio of the number of voltage anomaly regions and the ratio of the area of voltage anomaly regions, and the voltage stability value at the power input end is obtained;

[0009] Power status analysis module: Based on the stable value of the voltage at the power input terminal, compare the stable value of the voltage at the power input terminal with the stable threshold of the voltage at the power input terminal to generate a signal indicating whether the voltage at the power input terminal is stable. Among them, the signal indicating whether the voltage at the power input terminal is stable includes a signal indicating that the voltage at the power input terminal is stable and a signal indicating that the voltage at the power input terminal is unstable;

[0010] Power stability parameter generation module: Based on the signal indicating that the voltage at the power input terminal is unstable, obtain voltage abnormal fluctuation data, get the voltage fluctuation degree value at the power input terminal, and compare it with the voltage fluctuation degree threshold at the power input terminal. If the voltage fluctuation degree value at the power input terminal is greater than or equal to the voltage fluctuation degree threshold at the power input terminal, generate a signal indicating a large voltage abnormal fluctuation degree;

[0011] Power adjustment and optimization module: Based on the signal indicating a large voltage abnormal fluctuation degree, obtain the voltage adjustment coefficient at the power input terminal to get the adjusted voltage range at the power input terminal.

[0012] As a further solution of the present invention: The method for obtaining the stable value of the voltage at the power input terminal is as follows:

[0013] During the monitoring period, divide the monitoring period into several time nodes, monitor the power supply voltage in real time through a voltage sensor to obtain the voltage value corresponding to each time node, and establish an X-Y axis coordinate system, where the X axis is time and the Y axis is the voltage value corresponding to each time node, and depict the real-time voltage change curve;

[0014] Based on the real-time voltage change curve, mark points on the Y axis of the X-Y axis coordinate system, mark them as voltage threshold points, and draw a voltage threshold line parallel to the X axis with the voltage threshold points. Among them, mark the area between the voltage threshold line and the X axis as the normal voltage area, and mark the area above the voltage threshold line as the abnormal voltage area;

[0015] Obtain the ratio of the number of abnormal voltage areas and the ratio of the area of the abnormal voltage area, add up the number of abnormal voltage areas and the area of the abnormal voltage area to get the stable value of the voltage at the power input terminal.

[0016] As a further solution of the present invention: The method for obtaining the ratio of the area of the abnormal voltage area is as follows:

[0017] Based on the real-time voltage change curve, obtain the area of the abnormal voltage area, and calculate the ratio of the area of the abnormal voltage area to the area of all areas formed by the real-time voltage change curve and the threshold line to get the ratio of the area of the abnormal voltage area.

[0018] As a further solution of the present invention: Compare the stable value of the voltage at the power input terminal with the stable threshold of the voltage at the power input terminal. The comparison process is as follows:

[0019] If the voltage stability value of the power input terminal is greater than or equal to the voltage stability threshold of the power input terminal, a voltage input terminal voltage instability signal is generated;

[0020] If the power input terminal voltage stability value is less than the power input terminal voltage stability threshold, a voltage input terminal voltage stability signal is generated.

[0021] As a further solution of the present invention: the abnormal voltage fluctuation amplitude value is obtained in the following manner:

[0022] Based on the above real-time voltage change curve, the real-time voltage change curve in the voltage abnormal area is extracted and marked as the voltage abnormal curve. In the voltage abnormal curve, each peak abnormal voltage value and trough abnormal voltage value are obtained, and the adjacent peak abnormal voltage values ​​and trough abnormal voltage values ​​are subtracted to obtain the abnormal voltage change value. All abnormal voltage change values ​​are added and averaged to obtain the voltage abnormal fluctuation amplitude value.

[0023] As a further solution of the present invention: the method for obtaining the voltage abnormal fluctuation change rate value is:

[0024] Based on the real-time voltage change curve, the curve segment in the voltage abnormal area is marked as the voltage abnormal curve. In the voltage abnormal curve, the abnormal voltage value coordinates corresponding to each time node are obtained, and the abnormal voltage value coordinates corresponding to two adjacent time nodes are substituted into the formula: The voltage abnormal fluctuation rate V is calculated, where (X n , Y n ) and (X m , Y m ) represent the coordinates of abnormal voltage values ​​corresponding to two adjacent time nodes, m and n represent the coordinates at different positions in the coordinate system, and the voltage abnormal fluctuation change rate is added and averaged to obtain the voltage abnormal fluctuation change rate value.

[0025] As a further solution of the present invention: the adjusted voltage range of the power input terminal is obtained as follows:

[0026] Set the current power input voltage range (V Min , V Max ) Min and V Max Multiply them by the power input voltage adjustment coefficient K to get the adjusted power input voltage range. The specific process is as follows:

[0027] By formula: Calculate the minimum value of the adjusted power input voltage range

[0028] Through the formula: Calculate the maximum value of the adjusted power input voltage range

[0029] As a further solution of the present invention: The method for obtaining the power input voltage adjustment coefficient K is:

[0030] Obtain the voltage abnormal fluctuation amplitude deviation coefficient and the voltage abnormal fluctuation change rate deviation coefficient, substitute the voltage abnormal fluctuation amplitude deviation coefficient and the voltage abnormal fluctuation change rate deviation coefficient into the formula K = K1×α + K2×β, and calculate the power input voltage adjustment coefficient K, where K1 represents the voltage abnormal fluctuation amplitude deviation coefficient, K2 represents the voltage abnormal fluctuation change rate deviation coefficient, and α, β represent preset proportional coefficients, and α + β = 1.

[0031] As a further solution of the present invention: The method for obtaining the voltage abnormal fluctuation amplitude deviation coefficient is:

[0032] Obtain the voltage abnormal fluctuation amplitude value, subtract the voltage abnormal fluctuation amplitude value from the voltage abnormal fluctuation amplitude standard value to obtain the voltage abnormal fluctuation amplitude deviation value, and perform a ratio calculation on the voltage abnormal fluctuation amplitude deviation value and the voltage abnormal fluctuation amplitude standard value to obtain the voltage abnormal fluctuation amplitude deviation coefficient;

[0033] The method for obtaining the voltage abnormal fluctuation change rate deviation coefficient is:

[0034] Obtain the voltage abnormal fluctuation change rate value, subtract the voltage abnormal fluctuation change rate value from the voltage abnormal fluctuation change rate standard value to obtain the voltage abnormal fluctuation change rate deviation value, and perform a ratio calculation on the voltage abnormal fluctuation change rate deviation value and the voltage abnormal fluctuation change rate standard value to obtain the voltage abnormal fluctuation change rate deviation coefficient.

[0035] Advantages of the present invention:

[0036] (1) In the monitoring period of the present invention, the voltage data at the power input end is analyzed in real time. Among them, the voltage data at the power input end includes the ratio of the number of voltage abnormal regions and the ratio of the area of voltage abnormal regions, so as to obtain the voltage stability value at the power input end. Based on the voltage stability value at the power input end, the voltage stability value at the power input end is compared with the voltage stability threshold at the power input end. If the voltage stability value at the power input end is greater than or equal to the voltage stability threshold at the power input end, it indicates that the voltage fluctuation amplitude is relatively large, and a voltage instability signal at the power input end is generated. If the voltage stability value at the power input end is less than the voltage stability threshold at the power input end, it indicates that the voltage fluctuation amplitude is relatively small, and a voltage stability signal at the voltage input end is generated. By calculating the ratio of the number of voltage abnormal regions and the area ratio, the voltage stability degree at the power input end is quantified, the voltage stability degree at the power input end can be warned, and corresponding measures can be taken to ensure that the equipment can operate in a stable voltage environment;

[0037] (2) Based on the voltage instability signal at the power input end of the present invention, voltage abnormal fluctuation data is obtained to obtain the voltage abnormal fluctuation amplitude value and the voltage abnormal fluctuation change rate value. The voltage adjustment coefficient at the power input end is obtained to obtain the adjusted voltage range interval at the power input end. By identifying the situation where the voltage abnormal fluctuation amplitude at the power input end is large and the change rate is fast, the system can quickly adjust the input end voltage, and through the voltage abnormal fluctuation amplitude value and the voltage abnormal fluctuation change rate value collected in real time, the voltage adjustment coefficient at the power input end is calculated to adjust the power voltage fluctuation, reduce the voltage fluctuation range, and make the power voltage more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below with reference to the accompanying drawings.

[0039] Figure 1 is the block diagram of the present invention;

[0040] Figure 2 is the flowchart of Embodiment 1 of the present invention;

[0041] Figure 3 is the flowchart of Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Embodiment 1:

[0044] Please refer toFigure 1 , Figure 2 As shown in Figure 2 , an integrated regulated power supply system according to an embodiment of the present invention includes the following modules:

[0045] Power data monitoring module: During the monitoring period, analyze the voltage data at the power input end in real time to obtain the stable value of the voltage at the power input end;

[0046] In some embodiments, during the monitoring period, analyze the voltage data at the power input end in real time. Among them, the voltage data at the power input end includes the ratio of the number of voltage abnormal regions and the ratio of the area of voltage abnormal regions, and obtain the stable value of the voltage at the power input end;

[0047] Exemplarily, the acquisition method of the stable value of the voltage at the power input end is as follows:

[0048] During the monitoring period, divide the monitoring period into several time nodes, monitor the power supply voltage in real time through a voltage sensor to obtain the voltage value corresponding to each time node, and establish an X-Y axis coordinate system, where the X axis is time and the Y axis is the voltage value corresponding to each time node, and depict the real-time voltage change curve;

[0049] Based on the real-time voltage change curve, mark points on the Y axis of the X-Y axis coordinate system, mark them as voltage threshold points, and draw a voltage threshold line parallel to the X axis with the voltage threshold points. Among them, mark the area between the voltage threshold line and the X axis as the normal voltage area, and mark the area above the voltage threshold line as the abnormal voltage area;

[0050] Obtain the ratio of the number of abnormal voltage regions and the ratio of the area of abnormal voltage regions, add the number of abnormal voltage regions and the area of abnormal voltage regions, and obtain the stable value of the voltage at the power input end;

[0051] First specifically, the acquisition method of the ratio of the number of abnormal voltage regions is as follows:

[0052] Based on the real-time voltage change curve, extract the number of abnormal voltage regions, and calculate the ratio of the number of abnormal voltage regions to the total number of regions formed by the real-time voltage change curve and the threshold line to obtain the ratio of the number of abnormal voltage regions;

[0053] Second specifically, the acquisition method of the ratio of the area of abnormal voltage regions is as follows:

[0054] Based on the real-time voltage change curve, obtain the area of the abnormal voltage region, and calculate the ratio of the area of the abnormal voltage region to the total area of the regions formed by the real-time voltage change curve and the threshold line to obtain the ratio of the area of the abnormal voltage region;

[0055] Power status analysis module: Based on the stable value of the voltage at the power input terminal, compare the stable value of the voltage at the power input terminal with the stable voltage threshold at the power input terminal to generate a signal indicating whether the voltage at the power input terminal is stable;

[0056] Among them, the signal indicating whether the voltage at the power input terminal is stable includes a signal indicating that the voltage at the power input terminal is stable and a signal indicating that the voltage at the power input terminal is unstable;

[0057] In some embodiments, comparing the stable value of the voltage at the power input terminal with the stable voltage threshold at the power input terminal, the comparison process is as follows:

[0058] If the stable value of the voltage at the power input terminal is greater than or equal to the stable voltage threshold at the power input terminal, it indicates that the voltage fluctuation amplitude is large, and a signal indicating that the voltage at the voltage input terminal is unstable is generated;

[0059] If the stable value of the voltage at the power input terminal is less than the stable voltage threshold at the power input terminal, it indicates that the voltage fluctuation amplitude is small, and a signal indicating that the voltage at the voltage input terminal is stable is generated;

[0060] The technical solution of the embodiment of the present invention is mainly: during the monitoring period, the voltage data at the power input terminal is analyzed in real time. Among them, the voltage data at the power input terminal includes the ratio of the number of voltage abnormal regions and the ratio of the area of voltage abnormal regions, and the stable value of the voltage at the power input terminal is obtained. Based on the stable value of the voltage at the power input terminal, compare the stable value of the voltage at the power input terminal with the stable voltage threshold at the power input terminal. If the stable value of the voltage at the power input terminal is greater than or equal to the stable voltage threshold at the power input terminal, it indicates that the voltage fluctuation amplitude is large, and a signal indicating that the voltage at the power input terminal is unstable is generated. If the stable value of the voltage at the power input terminal is less than the stable voltage threshold at the power input terminal, it indicates that the voltage fluctuation amplitude is small, and a signal indicating that the voltage at the voltage input terminal is stable is generated. By calculating the ratio of the number of voltage abnormal regions and the area ratio, the stable degree of the voltage at the power input terminal is quantified, and the stable degree of the voltage at the power input terminal can be warned, and corresponding measures can be taken to ensure that the device can operate in a stable voltage environment.

[0061] Embodiment 2:

[0062] On the basis of Embodiment 1, please refer to Figure 1 and Figure 2 As shown, a voltage-stabilizing and current-stabilizing integrated power supply system described in an embodiment of the present invention includes the following modules:

[0063] Power stability parameter generation module: Based on the signal indicating that the voltage at the power input terminal is unstable, obtain voltage abnormal fluctuation data, and obtain the voltage abnormal fluctuation amplitude value and the voltage abnormal fluctuation change rate value;

[0064] In some embodiments, when a power input terminal voltage instability signal is generated, voltage anomaly fluctuation data is acquired to obtain a voltage anomaly fluctuation amplitude value and a voltage anomaly fluctuation change rate value. The specific acquisition process is as follows:

[0065] First specifically, the acquisition method of the voltage anomaly fluctuation amplitude value is as follows:

[0066] Based on the above real-time voltage change curve, the real-time voltage change curve within the voltage anomaly region is extracted and marked as the voltage anomaly curve. Within the voltage anomaly curve, each peak anomaly voltage value and trough anomaly voltage value are acquired. The difference is taken between adjacent peak anomaly voltage values and trough anomaly voltage values to obtain an anomaly voltage change value. The sum of all anomaly voltage change values is added up and averaged to obtain the voltage anomaly fluctuation amplitude value;

[0067] Second specifically, the acquisition method of the voltage anomaly fluctuation change rate value is as follows:

[0068] Based on the real-time voltage change curve, the curve segment within the voltage anomaly region is marked as the voltage anomaly curve. Within the voltage anomaly curve, the anomaly voltage value coordinates corresponding to each time node are acquired. The anomaly voltage value coordinates corresponding to two adjacent time nodes are substituted into the formula: The voltage anomaly fluctuation change rate V is calculated, where (X n , Y n ) and (X m , Y m ) respectively represent the anomaly voltage value coordinates corresponding to two adjacent time nodes, m and n respectively represent coordinates at different positions in the coordinate system. The voltage anomaly fluctuation change rates are added up and averaged to obtain the voltage anomaly fluctuation change rate value;

[0069] Power adjustment and optimization module: Based on the voltage anomaly fluctuation amplitude value and the voltage anomaly fluctuation change rate value, a power input terminal voltage adjustment coefficient is acquired to obtain an adjusted power input terminal voltage range interval;

[0070] In some embodiments, when the voltage anomaly fluctuation amplitude value and the voltage anomaly fluctuation change rate value are obtained, a voltage anomaly fluctuation amplitude deviation coefficient and a voltage anomaly fluctuation change rate deviation coefficient are respectively acquired. The voltage anomaly fluctuation amplitude deviation coefficient and the voltage anomaly fluctuation change rate deviation coefficient are substituted into the formula K = K1×α + K2×β to calculate the power input terminal voltage adjustment coefficient K, where K1 represents the voltage anomaly fluctuation amplitude deviation coefficient, K2 represents the voltage anomaly fluctuation change rate deviation coefficient, α and β represent preset proportionality coefficients, α + β = 1. For the current power input terminal voltage range interval V Min , V Max ) where V Min and VMax Multiply them separately by the voltage adjustment coefficient K of the power input terminal to obtain the adjusted voltage range of the power input terminal. The specific process is as follows:

[0071] Through the formula: Calculate the minimum value of the adjusted voltage range of the power input terminal.

[0072] Through the formula: Calculate the maximum value of the adjusted voltage range of the power input terminal.

[0073] Among them, the method for obtaining the deviation coefficient of the abnormal voltage fluctuation amplitude is:

[0074] Obtain the abnormal voltage fluctuation amplitude value, subtract the abnormal voltage fluctuation amplitude value from the standard value of the abnormal voltage fluctuation amplitude to obtain the abnormal voltage fluctuation amplitude deviation value, and perform a ratio calculation on the abnormal voltage fluctuation amplitude deviation value and the standard value of the abnormal voltage fluctuation amplitude to obtain the deviation coefficient of the abnormal voltage fluctuation amplitude;

[0075] The method for obtaining the deviation coefficient of the abnormal voltage fluctuation change rate is:

[0076] Obtain the abnormal voltage fluctuation change rate value, subtract the abnormal voltage fluctuation change rate value from the standard value of the abnormal voltage fluctuation change rate to obtain the abnormal voltage fluctuation change rate deviation value, and perform a ratio calculation on the abnormal voltage fluctuation change rate deviation value and the standard value of the abnormal voltage fluctuation change rate to obtain the deviation coefficient of the abnormal voltage fluctuation change rate;

[0077] Among them, it should be further explained that: the standard value of the abnormal voltage fluctuation amplitude and the standard value of the abnormal voltage fluctuation change rate are obtained by those skilled in the art through multiple detections of power charging, and they are an empirical value;

[0078] The specific implementation of the embodiment of the present invention is as follows: Based on the unstable signal of the power input terminal voltage, obtain the abnormal voltage fluctuation data, obtain the abnormal voltage fluctuation amplitude value and the abnormal voltage fluctuation change rate value, obtain the voltage adjustment coefficient of the power input terminal, obtain the adjusted voltage range of the power input terminal, and by identifying the situation where the abnormal voltage fluctuation amplitude of the power input terminal is large and the change rate is fast, the system can quickly adjust the input terminal voltage, and through the real-time collected abnormal voltage fluctuation amplitude value and abnormal voltage fluctuation change rate value, calculate the voltage adjustment coefficient of the power input terminal to adjust the power voltage fluctuation, reduce the voltage fluctuation range, and make the power voltage more stable.

[0079] The above has described in detail an embodiment of the present invention, but the above content is only a preferred embodiment of the present invention and cannot be considered as defining the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. An integrated power supply system for voltage and current stabilization, characterized in that, It includes the following modules: Power data monitoring module: During the monitoring period, it conducts real-time analysis on the voltage data at the power input end. Among them, the voltage data at the power input end includes the ratio of the number of voltage abnormal regions and the ratio of the area of voltage abnormal regions, and obtains the voltage stability value at the power input end; Power status analysis module: Based on the voltage stability value at the power input end, it compares the voltage stability value at the power input end with the voltage stability threshold at the power input end, and generates a signal indicating whether the voltage at the power input end is stable. Among them, the signal indicating whether the voltage at the power input end is stable includes a signal indicating that the voltage at the power input end is stable and a signal indicating that the voltage at the power input end is unstable; Power stability parameter generation module: Based on the signal indicating that the voltage at the power input end is unstable, it obtains the voltage abnormal fluctuation data, and gets the voltage abnormal fluctuation amplitude value and the voltage abnormal fluctuation change rate value; Power adjustment and optimization module: Based on the voltage abnormal fluctuation amplitude value and the voltage abnormal fluctuation change rate value, it obtains the voltage adjustment coefficient at the power input end, and gets the adjusted voltage range at the power input end; The way to obtain the adjusted voltage range at the power input end is: Multiply the current power input terminal voltage range (V Min , V Max ) by the power input terminal voltage adjustment factor K for V Min and V Max respectively to obtain the adjusted power input terminal voltage range The specific process is as follows: Through the formula: Calculate the minimum value of the adjusted power input voltage range interval Through the formula: The maximum value of the adjusted power input voltage range is calculated The way to obtain the voltage adjustment coefficient K at the power input end is: Obtain the voltage abnormal fluctuation amplitude deviation coefficient and the voltage abnormal fluctuation change rate deviation coefficient, substitute the voltage abnormal fluctuation amplitude deviation coefficient and the voltage abnormal fluctuation change rate deviation coefficient into the formula K = K1×α + K2×β, and calculate to obtain the voltage adjustment coefficient K at the power input end. Among them, K1 represents the voltage abnormal fluctuation amplitude deviation coefficient, K2 represents the voltage abnormal fluctuation change rate deviation coefficient, α and β represent preset proportionality coefficients, and α + β = 1.

2. The integrated voltage and current stabilizing power supply system according to claim 1, wherein The way to obtain the voltage stability value at the power input end is: During the monitoring period, divide the monitoring period into several time nodes, conduct real-time monitoring of the power voltage through a voltage sensor, obtain the voltage value corresponding to each time node, and establish an X-Y axis coordinate system. The X axis is time, and the Y axis is the voltage value corresponding to each time node, and depict the real-time voltage change curve; Based on the real-time voltage change curve, mark points on the Y axis of the X-Y axis coordinate system as voltage threshold points, and draw a voltage threshold line parallel to the X axis through the voltage threshold points. Among them, mark the area between the voltage threshold line and the X axis as the voltage normal area, and mark the area above the voltage threshold line as the voltage abnormal area; Obtain the ratio of the number of voltage abnormal regions and the ratio of the area of voltage abnormal regions, add the number of voltage abnormal regions and the area of voltage abnormal regions, and obtain the voltage stability value at the power input end.

3. The integrated regulated voltage and current power supply system according to claim 2, characterized in that, The way to obtain the ratio of the number of voltage abnormal regions is: Based on the real-time voltage change curve, extract the number of voltage abnormal regions, and calculate the ratio of the number of voltage abnormal regions to the total number of regions formed by the real-time voltage change curve and the threshold line to obtain the ratio of the number of voltage abnormal regions.

4. An integrated regulated voltage and current power supply system according to claim 2, characterized in that, The way to obtain the ratio of the area of voltage abnormal regions is: Based on the real-time voltage change curve, obtain the area of the voltage abnormal region, calculate the ratio of the area of the voltage abnormal region to the area of all regions formed by the real-time voltage change curve and the threshold line, and obtain the ratio of the area of the voltage abnormal region.

5. The integrated voltage and current stabilized power supply system according to claim 1, wherein, The comparison between the stable value of the voltage at the power input end and the stable threshold of the voltage at the power input end is as follows: If the stable value of the voltage at the power input end is greater than or equal to the stable threshold of the voltage at the power input end, generate a signal indicating that the voltage at the voltage input end is unstable; If the stable value of the voltage at the power input end is less than the stable threshold of the voltage at the power input end, generate a signal indicating that the voltage at the voltage input end is stable.

6. The integrated regulated voltage and current power supply system according to claim 1, characterized in that, The method for obtaining the abnormal voltage fluctuation amplitude value is as follows: Based on the real-time voltage change curve, extract the real-time voltage change curve within the voltage abnormal region, mark it as the voltage abnormal curve. Within the voltage abnormal curve, obtain the abnormal voltage value of each wave peak and the abnormal voltage value of each wave valley, subtract the adjacent abnormal voltage value of the wave peak and the abnormal voltage value of the wave valley to obtain the abnormal voltage change value, sum up all the abnormal voltage change values and take the average to obtain the abnormal voltage fluctuation amplitude value.

7. The integrated regulated voltage and current power supply system according to claim 1, characterized in that, The method for obtaining the abnormal voltage fluctuation change rate value is as follows: Based on the real-time voltage change curve, mark the curve segment within the voltage abnormal area as the voltage abnormal curve. Within the voltage abnormal curve, obtain the abnormal voltage value coordinates corresponding to each time node, and substitute the abnormal voltage value coordinates corresponding to two adjacent time nodes into the formula: Calculate the voltage abnormal fluctuation change rate V. Among them, (X n , Y n ) and (X m , Y m ) respectively represent the abnormal voltage value coordinates corresponding to two adjacent time nodes, m and n respectively represent the coordinates at different positions in the coordinate system. Add up the voltage abnormal fluctuation change rates and take the average to obtain the voltage abnormal fluctuation change rate value.

8. The integrated voltage and current stabilizing power supply system according to claim 1, wherein The method for obtaining the abnormal voltage fluctuation amplitude deviation coefficient is as follows: Obtain the abnormal voltage fluctuation amplitude value, subtract the abnormal voltage fluctuation amplitude value from the standard value of the abnormal voltage fluctuation amplitude to obtain the abnormal voltage fluctuation amplitude deviation value, calculate the ratio of the abnormal voltage fluctuation amplitude deviation value to the standard value of the abnormal voltage fluctuation amplitude to obtain the abnormal voltage fluctuation amplitude deviation coefficient; The method for obtaining the abnormal voltage fluctuation change rate deviation coefficient is as follows: Obtain the abnormal voltage fluctuation change rate value, subtract the abnormal voltage fluctuation change rate value from the standard value of the abnormal voltage fluctuation change rate to obtain the abnormal voltage fluctuation change rate deviation value, calculate the ratio of the abnormal voltage fluctuation change rate deviation value to the standard value of the abnormal voltage fluctuation change rate to obtain the abnormal voltage fluctuation change rate deviation coefficient.

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