Output control method of series electronic load

Abstract

The present application discloses a series electronic load output control method, which is applied to an electronic load system. The method includes a constant voltage output control strategy, which includes: obtaining a target voltage value; based on the target voltage value, controlling the feedback electronic load to output at a first output voltage; based on the target voltage value and the first output voltage, controlling the consumption electronic load to output at a second output voltage; wherein the rising rate of the second output voltage is greater than the rising rate of the first output voltage; when the output voltage of the electronic load system is the target voltage value, controlling the consumption electronic load to output at a third output voltage, so that the output voltage of the electronic load system remains at the target voltage value until the output voltage of the feedback electronic load reaches the target voltage value, wherein the third output voltage maintains a downward trend.

Description

Technical Field

[0001] The present application relates to the technical field of electronic loads, and in particular to a method for controlling the output of a series electronic load. Background Art

[0002] When an electronic load is performing power supply testing, the power generated by the power supply needs to be consumed by the electronic load or fed back to the grid. This gives rise to two types of electronic loads: dissipative electronic loads and regenerative electronic loads. Currently, most electronic loads on the market use dissipative electronic loads. Dissipative electronic loads convert electrical energy into thermal energy through power tubes, which are then transferred to a heat sink through the power tubes and dissipated through air or water cooling. Regenerative electronic loads use DC-AC converters to convert most of the DC power into AC power and feed it back to the grid, achieving the recycling of local DC and AC power and significantly saving electricity consumption. A very small portion of the energy lost by regenerative electronic loads is converted into heat and transferred to the surrounding environment through air cooling.

[0003] With the development of AI technology, the requirements for server power supply power, voltage, and response speed are becoming increasingly stringent. Therefore, high-power battery testing requires extremely high test power and extremely fast dynamic response. Using a regenerative electronic load for testing, however, cannot achieve a rapid voltage rise due to the physical constraints of the inductor voltage, which cannot change suddenly. This results in a slow dynamic voltage adjustment time. Using a consumptive electronic load, on the other hand, allows for faster dynamic voltage adjustment time, but struggles to meet energy-saving requirements. Summary of the Invention

[0004] This application aims to propose a series electronic load output control method that can meet the requirements of voltage dynamic response speed and energy saving.

[0005] The present invention provides a method for controlling the output of a series-connected electronic load, which is applied to an electronic load system. The electronic load system includes a consumable electronic load and a regenerative electronic load. The consumable electronic load and the regenerative electronic load are connected in series between a positive electrode of a power supply under test and a negative electrode of the power supply under test. The method includes:

[0006] Get the target voltage value;

[0007] Based on the target voltage value, controlling the feedback electronic load to output a first output voltage;

[0008] Based on the target voltage value and the first output voltage, controlling the consumable electronic load to output at a second output voltage; wherein a rising speed of the second output voltage is greater than a rising speed of the first output voltage;

[0009] When the output voltage of the electronic load system is at the target voltage value, the consumable electronic load is controlled to output at a third output voltage, so that the output voltage of the electronic load system remains at the target voltage value until the output voltage of the feedback electronic load reaches the target voltage value, wherein the third output voltage maintains a downward trend.

[0010] According to some embodiments of the present application, controlling the feedback electronic load to output a first output voltage based on the target voltage value includes:

[0011] determining a first rising curve based on the target voltage value;

[0012] Based on the first rising curve, controlling the feedback electronic load to output the first output voltage;

[0013] The step of controlling the consumable electronic load to output at a second output voltage based on the target voltage value and the first output voltage includes:

[0014] determining a second rising curve according to the target voltage value and the first rising curve;

[0015] Based on the second rising curve, the consumptive electronic load is controlled to output at a second output voltage, wherein the slope of the second rising curve is greater than the slope of the first rising curve.

[0016] According to some embodiments of the present application, controlling the consumable electronic load to output at a third output voltage so that the output voltage of the electronic load system remains at the target voltage value includes:

[0017] determining a first descending curve according to the target voltage value and the first ascending curve;

[0018] Based on the first decreasing curve, the consumable electronic load is controlled to output at the third output voltage, so that the output voltage of the electronic load system is maintained at the target voltage value.

[0019] According to some embodiments of the present application, controlling the consumable electronic load to output at a second output voltage based on the target voltage value and the first output voltage includes:

[0020] Determining a first intermediate output voltage based on the target voltage value and the first output voltage using a first preset prediction model; wherein the first preset prediction model is trained based on historical data of the electronic load system;

[0021] determining the second output voltage according to the first intermediate output voltage and the target voltage value;

[0022] The consumptive electronic load is controlled to output at the second output voltage.

[0023] According to some embodiments of the present application, controlling the consumable electronic load to output at a third output voltage so that the output voltage of the electronic load system remains at the target voltage value includes:

[0024] Determining a first intermediate output voltage based on the target voltage value and the first output voltage using a first preset prediction model; wherein the first preset prediction model is trained based on historical data of the electronic load system;

[0025] determining the third output voltage according to the first intermediate output voltage and the target voltage value;

[0026] The consumable electronic load is controlled to output at the third output voltage so that the output voltage of the electronic load system is maintained at the target voltage value.

[0027] According to some embodiments of the present application, the method further includes:

[0028] In response to the prediction end instruction, controlling the feedback electronic load to output at a fourth output voltage until the output voltage of the feedback electronic load returns to a steady-state operating voltage;

[0029] The output voltage of the consumption-type electronic load is adjusted according to the preset voltage output curve and the decreasing speed of the output voltage of the feedback-type electronic load, so that the output voltage of the electronic load system is consistent with the preset voltage output curve.

[0030] According to some embodiments of the present application, adjusting the output voltage of the consumption-type electronic load according to the preset voltage output curve and the decreasing speed of the output voltage of the feedback-type electronic load includes:

[0031] In response to the prediction end instruction, controlling the consumable electronic load to output at a fifth output voltage so that the output voltage of the electronic load system is maintained at the target voltage value;

[0032] In response to an output end instruction, controlling the consumable electronic load to output at a sixth output voltage until the output voltage of the electronic load system recovers to a steady-state output voltage; a decreasing rate of the sixth output voltage is greater than a decreasing rate of the fourth output voltage;

[0033] The output end instruction and the predicted end instruction are determined according to a preset voltage output curve, wherein the output end instruction is generated at the start of a period when the electronic load system drops from a target voltage to a steady-state operating voltage, and the predicted end instruction is generated before the output end instruction is generated.

[0034] According to some embodiments of the present application, adjusting the output voltage of the consumption-type electronic load according to the preset voltage output curve and the decreasing speed of the output voltage of the feedback-type electronic load includes:

[0035] In response to the prediction end instruction, controlling the consumable electronic load to output at a fifth output voltage so that the output voltage of the electronic load system is maintained at the target voltage value;

[0036] When the output voltage of the feedback electronic load recovers from the target voltage value to the steady-state operating voltage and the preset voltage output curve indicates that the electronic load system needs to maintain output, the consumption electronic load is controlled to output at a sixth output voltage until the output voltage of the electronic load system recovers to the steady-state output voltage.

[0037] According to some embodiments of the present application, adjusting the output voltage of the consumption-type electronic load according to the preset voltage output curve and the decreasing speed of the output voltage of the feedback-type electronic load includes:

[0038] If the output voltage of the feedback electronic load has not recovered to the steady-state output voltage and the preset voltage output curve indicates that the electronic load system needs to maintain output, determining a second intermediate output voltage using a second preset prediction model based on the steady-state output voltage and the fourth output voltage, and determining a seventh output voltage based on the second intermediate output voltage and the steady-state output voltage, and controlling the consumable electronic load to output at the seventh output voltage;

[0039] When the output voltage of the feedback electronic load recovers to a steady-state output voltage and the preset voltage output curve indicates that the electronic load system needs to maintain output, the consumption electronic load is controlled to output at an eighth output voltage until the output voltage of the electronic load system recovers to a steady-state output voltage.

[0040] According to some embodiments of the present application, the method further includes a current output control strategy, wherein the current output control strategy includes:

[0041] Obtaining a first voltage, where the first voltage is the voltage of the power supply under test;

[0042] Obtaining a second voltage, where the second voltage is an operating voltage of the consumable electronic load;

[0043] determining a third voltage based on the first voltage and the second voltage;

[0044] Controlling the feedback electronic load to output the third voltage as the port voltage, so that the port voltage of the consumption electronic load is at the second voltage;

[0045] The consumable electronic load is controlled to output current according to a preset current preset output curve.

[0046] In a second aspect, an embodiment of the present application provides a control device applied to an electronic load system, wherein the electronic load system includes a consumable electronic load and a regenerative electronic load, wherein the consumable electronic load and the regenerative electronic load are arranged in series between a positive electrode of a power supply under test and a negative electrode of the power supply under test, and the control device includes:

[0047] An acquisition module is used to obtain a target voltage value;

[0048] A first control module is configured to control the feedback electronic load to output a first output voltage based on the target voltage value;

[0049] a second control module, configured to control the consumable electronic load to output at a second output voltage based on the target voltage value and the first output voltage; wherein a rising rate of the second output voltage is greater than a rising rate of the first output voltage;

[0050] a third control module, configured to control the consumable electronic load to output at a third output voltage when the output voltage of the electronic load system is the target voltage value, so that the output voltage of the electronic load system remains at the target voltage value until the output voltage of the feedback electronic load reaches the target voltage value, wherein the third output voltage maintains a downward trend.

[0051] In a third aspect, an embodiment of the present application provides an electronic load system, which is provided with a controller, and when the controller is executed, it implements the above-mentioned series electronic load output control method.

[0052] In a fourth aspect, an embodiment of the present application provides an electronic device, including:

[0053] at least one processor;

[0054] at least one memory for storing at least one program;

[0055] When at least one of the programs is executed by at least one of the processors, the above-mentioned series electronic load output control method is implemented.

[0056] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium storing a program executable by a processor, wherein the program executable by the processor is used to implement the above-mentioned series electronic load output control method when executed by the processor.

[0057] In an embodiment of the present application, based on a target voltage value, the feedback electronic load is controlled to output at a first output voltage. Based on the target voltage value and the first output voltage, the consumable electronic load is controlled to output at a second output voltage, so that the output voltage of the electronic load system rises rapidly, meeting the voltage dynamic response speed requirement. When the output voltage of the electronic load system reaches the target voltage value, since the output voltage of the feedback electronic load continues to rise, the consumable electronic load is controlled to output at a third output voltage, i.e., the output voltage of the consumable electronic load decreases, so that the output voltage of the electronic load system remains at the target voltage value until the output voltage of the feedback electronic load reaches the target voltage value, at which point the feedback electronic load alone performs voltage output, meeting the energy-saving requirement.

[0058] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0060] Figure 1 A schematic diagram of an embodiment of a series electronic load system provided by the present application;

[0061] Figure 2 This is a flow chart of an embodiment of a method for controlling the output of a series electronic load provided in this application;

[0062] Figure 3 A circuit diagram of an embodiment of a series electronic load system provided by this application;

[0063] Figure 4 A voltage preset output curve diagram of the electronic load system in an embodiment of the series electronic load output control method provided in this application;

[0064] Figure 5 This is a graph a showing the output voltage curve of the feedback electronic load in the embodiment of the series electronic load output control method provided by the present application;

[0065] Figure 6 This is a graph a showing the output voltage curve of the consumable electronic load in the embodiment of the series electronic load output control method provided by the present application;

[0066] Figure 7This is the output voltage curve diagram b of the feedback electronic load in the embodiment of the series electronic load output control method provided by the present application;

[0067] Figure 8 This is the output voltage curve diagram b of the consumable electronic load in the embodiment of the series electronic load output control method provided by the present application;

[0068] Figure 9 A schematic diagram of an embodiment of a control device provided in this application;

[0069] Figure 10 This is a schematic diagram of an embodiment of an electronic device provided in the present application.

[0070] Reference numerals:

[0071] Consumable electronic load 100 , regenerative electronic load 200 , tested power supply 300 , control device 400 , acquisition module 410 , first control module 420 , second control module 430 , third control module 440 , electronic device 500 , processor 510 , memory 520 . DETAILED DESCRIPTION

[0072] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0073] In the description of this application, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0074] In the description of this application, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0075] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0076] The following is based on Figures 1 to 10 A method for controlling the output of a series electronic load provided in an embodiment of the present application is described.

[0077] The present invention provides a method for controlling the output of a series electronic load, which is applied to an electronic load system, such as Figure 1 As shown, the electronic load system includes a controller ( Figure 1 The consumable electronic load 100 and the regenerative electronic load 200 are connected in series between the positive electrode of the power supply under test and the negative electrode of the power supply under test. Figure 2 As shown, the method includes:

[0078] Step S100: obtaining a target voltage value;

[0079] Step S200: Based on the target voltage value, controlling the feedback electronic load 200 to output a first output voltage;

[0080] Step S300: Based on the target voltage value and the first output voltage, controlling the consumer electronic load 100 to output at a second output voltage; wherein a rising speed of the second output voltage is greater than a rising speed of the first output voltage;

[0081] Step S400: When the output voltage of the electronic load system is at the target voltage value, control the consumable electronic load 100 to output at a third output voltage, so that the output voltage of the electronic load system remains at the target voltage value until the output voltage of the regenerative electronic load 200 reaches the target voltage value, wherein the third output voltage maintains a downward trend.

[0082] In an embodiment of the present application, based on a target voltage value, the controller controls the feedback electronic load 200 to output at a first output voltage. Based on the target voltage value and the first output voltage, the controller controls the consumable electronic load 100 to output at a second output voltage, so that the output voltage of the electronic load system rises rapidly, meeting the voltage dynamic response speed requirement. When the output voltage of the electronic load system reaches the target voltage value, since the output voltage of the feedback electronic load 200 continues to rise, the controller controls the consumable electronic load 100 to output at a third output voltage, i.e., the output voltage of the consumable electronic load 100 decreases, so that the output voltage of the electronic load system remains at the target voltage value until the output voltage of the feedback electronic load 200 reaches the target voltage value, at which point the feedback electronic load 200 alone performs voltage output, meeting the energy-saving requirement.

[0083] In step S100 , the target voltage value is the output voltage value of the electronic load system required for testing the power supply 300 under test.

[0084] In step S200, based on the target voltage value, the regenerative electronic load 200 can control the first output voltage to increase from the steady-state operating voltage at a controllable fixed slope. The regenerative electronic load 200 can also control the first output voltage to be output at a maximum voltage build-up rate, with the first output voltage increasing nonlinearly from the steady-state operating voltage.

[0085] In step S300, because the voltage dynamic response speed of the regenerative electronic load 200 is relatively slow, the controller controls the consumable electronic load 100 to output at a second output voltage based on the target voltage value and the first output voltage. By superimposing the output voltages of the regenerative electronic load 200 and the consumable electronic load 100, and increasing the second output voltage more rapidly, the output voltage of the electronic load system increases rapidly, thereby improving the voltage dynamic response speed.

[0086] In step S400, when the output voltage of the electronic load system is at the target voltage value, that is, when the sum of the first output voltage and the second output voltage reaches the target voltage value, the first output voltage continues to rise, and the controller controls the consumable electronic load 100 to output at the third output voltage. The third output voltage maintains a downward trend, so that the output voltage of the electronic load system remains at the target voltage value until the output voltage of the feedback electronic load 200 reaches the target voltage value.

[0087] In some embodiments of the present application, Figure 3 As shown, the consumptive electronic load 100 includes a first MOS transistor Q1 , a drain of the first MOS transistor Q1 is connected to the positive electrode of the power supply 300 under test, and a gate of the first MOS transistor Q1 is connected to the controller.

[0088] In some embodiments of the present application, Figure 3 As shown, the feedback electronic load 200 includes:

[0089] A first inductor L2, wherein a first end of the first inductor L2 is connected to the source of the first MOS transistor Q1;

[0090] a diode D1, where an anode of the diode D1 is connected to the second end of the first inductor L2;

[0091] A DC-AC converter T1 , wherein a first end of the DC-AC converter T1 is connected to the cathode of the diode D1 , and a second end of the DC-AC converter T1 is connected to the negative electrode of the power supply 300 under test;

[0092] A first capacitor C1, wherein a first end of the first capacitor C1 is connected to a first end of the first inductor L2, and a second end of the first capacitor C1 is connected to a negative electrode of the power supply 300 under test;

[0093] a second capacitor C2, wherein a first end of the second capacitor C2 is connected to the cathode of the diode D1, and a second end of the second capacitor C2 is connected to the negative electrode of the power supply 300 under test;

[0094] The second MOS transistor Q2 has a source connected to the negative electrode of the power supply 300 under test, a drain connected to the second end of the first inductor L2, and a gate connected to the controller.

[0095] In some embodiments of the present application, the step S200 of “controlling the feedback electronic load 200 to output the first output voltage based on the target voltage value” is further described. The step S200 includes:

[0096] Step S210: determining a first rising curve based on the target voltage value;

[0097] Step S220: Based on the first rising curve, controlling the feedback electronic load 200 to output a first output voltage;

[0098] Further describing the step S300 of “controlling the consumable electronic load 100 to output at the second output voltage based on the target voltage value and the first output voltage”, step S300 includes:

[0099] Step S310: determining a second rising curve according to the target voltage value and the first rising curve;

[0100] Step S320 : Based on the second rising curve, control the consumer electronic load 100 to output at a second output voltage, wherein the slope of the second rising curve is greater than the slope of the first rising curve.

[0101] In this embodiment, for the feedback electronic load 200, a first rising curve (eg, Figure 5 As shown in the section t1 to t3 in FIG, the controller controls the feedback electronic load 200 to output the first output voltage according to the first rising curve, wherein the first rising curve includes a plurality of first time nodes and a plurality of first voltage values, and the plurality of first voltage values ​​correspond one-to-one to the plurality of first time nodes.

[0102] For the consumable electronic load 100, when the first rising curve is determined, the controller determines the second rising curve (eg, Figure 6As shown in the section t1 to t2 in FIG), the consumable electronic load 100 is controlled to output a second output voltage according to the second rising curve, and the difference between the first output voltage and the target voltage value is compensated by the second output voltage. The second rising curve includes multiple second time nodes and multiple second voltage values, and the multiple second voltage values ​​correspond to the multiple second time nodes in a one-to-one manner. The slope of the second rising curve is greater than the slope of the first rising curve, thereby improving the voltage dynamic response speed of the electronic load system. The output voltage of the electronic load system is as shown in FIG. Figure 4 shown.

[0103] In some embodiments of the present application, a difference circuit may be provided in the electronic load system, and the difference between the first output voltage and the target voltage value may be calculated using the difference circuit to determine the second output voltage.

[0104] In some embodiments of the present application, the step S400 of “controlling the consumable electronic load 100 to output at a third output voltage so that the output voltage of the electronic load system is maintained at a target voltage value” is further described. The step S400 includes:

[0105] Step S410: determining a first descending curve according to the target voltage value and the first ascending curve;

[0106] Step S420 : Based on the first decreasing curve, control the consumer electronic load 100 to output at a third output voltage, so that the output voltage of the electronic load system is maintained at the target voltage value.

[0107] In this embodiment, when the first rising curve is clear, the first falling curve (eg Figure 6 (as shown in the section t2 to t3 in the figure), when the output voltage of the electronic load system reaches the target voltage value, that is, when the sum of the first output voltage and the second output voltage reaches the target voltage value, the controller controls the consumer electronic load 100 to output a third output voltage based on the first decreasing curve, and uses the third output voltage to compensate for the difference between the first output voltage and the target voltage value until the output voltage of the feedback electronic load 200 reaches the target voltage value. The first decreasing curve includes multiple third time nodes and multiple voltage values, and the multiple third voltage values ​​correspond one-to-one to the multiple third time nodes.

[0108] In some embodiments of the present application, the step S300 of “controlling the consumable electronic load 100 to output at the second output voltage based on the target voltage value and the first output voltage” is further described. Step S300 includes:

[0109] Step S330: Determine a first intermediate output voltage based on the target voltage value and the first output voltage using a first preset prediction model, wherein the first preset prediction model is trained based on historical data of the electronic load system;

[0110] Step S340: determining a second output voltage according to the first intermediate output voltage and the target voltage value;

[0111] Step S350 : Control the consumer electronic load 100 to output at a second output voltage.

[0112] In this embodiment, a neural network model is trained using historical data from the electronic load system to obtain a first preset prediction model. The target voltage value and the real-time value of the first output voltage are input into the first preset prediction model. The first preset prediction model outputs a first intermediate output voltage, which is the voltage value of the first output voltage predicted by the first preset prediction model at the next time point. Based on the first intermediate output voltage and the target voltage value, the second output voltage is determined. The difference between the first intermediate output voltage and the target voltage value is the voltage value of the second output voltage at the next time point. The controller controls the consumable electronic load 100 to output at the second output voltage.

[0113] In some embodiments of the present application, the type of neural network model to be trained is not limited. For example, a long short-term memory network, a sequential convolutional network, or a Transformer model can be trained to obtain a first preset prediction model.

[0114] In some embodiments of the present application, the step S400 of “controlling the consumable electronic load 100 to output at a third output voltage so that the output voltage of the electronic load system is maintained at a target voltage value” is further described. The step S400 includes:

[0115] Step S430: Determine a first intermediate output voltage based on the target voltage value and the first output voltage using a first preset prediction model, wherein the first preset prediction model is trained based on historical data of the electronic load system;

[0116] Step S440: determining a third output voltage according to the first intermediate output voltage and the target voltage value;

[0117] Step S450 : controlling the consumer electronic load 100 to output at a third output voltage, so that the output voltage of the electronic load system is maintained at the target voltage value.

[0118] In this embodiment, the target voltage value and the real-time value of the first output voltage are input into a first preset prediction model. The first preset prediction model outputs a first intermediate output voltage, which is the voltage value of the first output voltage predicted by the first preset prediction model at the next time point. Based on the first intermediate output voltage and the target voltage value, the third output voltage is determined. The difference between the first intermediate output voltage and the target voltage value is the voltage value of the third output voltage at the next time point. The controller controls the consumable electronic load 100 to output at the third output voltage, so that the output voltage of the electronic load system remains at the target voltage value.

[0119] In some embodiments of the present application, the method further comprises:

[0120] Step S500 : In response to the prediction end instruction, controlling the feedback electronic load 200 to output at a fourth output voltage until the output voltage of the feedback electronic load 200 recovers to a steady-state operating voltage;

[0121] Step S600 : adjusting the output voltage of the consumer electronic load 100 according to the preset voltage output curve and the decreasing speed of the output voltage of the feedback electronic load 200 , so that the output voltage of the electronic load system is consistent with the preset voltage output curve.

[0122] In this embodiment, the prediction end instruction is used to instruct the electronic load system to prepare to restore the output voltage to the steady-state operating voltage. In response to the prediction end instruction, the controller controls the feedback electronic load 200 to output the fourth output voltage (such as Figure 5 As shown in the section t4 to t6, Figure 7 As shown in the section t4 to t5 in FIG), the fourth output voltage maintains a downward trend until the output voltage of the feedback electronic load 200 returns to a steady-state operating voltage. The controller can determine the magnitude of the fourth output voltage based on the decreasing speed of the output voltage of the feedback electronic load 200, and further determine the difference between the fourth output voltage and the preset voltage output curve of the electronic load system, and adjust the output voltage of the consumer electronic load 100 to the difference (as shown in FIG). Figure 6 As shown in the section t4 to t6, Figure 8 t4 to t6 in FIG), so that the output voltage of the electronic load system is consistent with the preset voltage output curve.

[0123] In step S500 , the prediction end instruction may be generated based on the preset voltage output curve of the electronic load system, for example, generated a certain time before the falling starting point of the preset voltage output curve, to indicate that the electronic load system is ready to restore the output voltage to the steady-state operating voltage.

[0124] In step S600, if Figure 4As shown, the voltage preset output curve includes multiple fourth time nodes and multiple fourth voltage values, and the multiple fourth time nodes correspond to the multiple fourth voltage values ​​in a one-to-one manner.

[0125] In some embodiments of the present application, the step S600 of “adjusting the output voltage of the consumer electronic load 100 according to the preset voltage output curve and the decreasing rate of the output voltage of the feedback electronic load 200” is further described. Step S600 includes:

[0126] Step S610 : In response to the prediction end instruction, controlling the consumable electronic load 100 to output at a fifth output voltage, so that the output voltage of the electronic load system is maintained at the target voltage value;

[0127] Step S620: In response to the output end instruction, controlling the consumable electronic load 100 to output at a sixth output voltage until the output voltage of the electronic load system returns to a steady-state output voltage; the sixth output voltage decreases faster than the fourth output voltage.

[0128] Among them, the output end instruction and the predicted end instruction are determined according to the voltage preset output curve, wherein the output end instruction is generated at the starting moment of the period when the electronic load system drops from the target voltage to the steady-state operating voltage, and the generation moment of the predicted end instruction is before the generation of the output end instruction.

[0129] In this embodiment, in response to the prediction end instruction, the feedback electronic load 200 outputs a fourth output voltage, which decreases at a fixed slope and returns to a steady-state operating voltage at a preset endpoint time. In response to the prediction end instruction, the controller controls the consumer electronic load 100 to output a fifth output voltage, compensating for the difference between the fourth output voltage and the target voltage, thereby maintaining the output voltage of the electronic load system at the target voltage. In response to the output end instruction, the controller controls the consumer electronic load 100 to output a sixth output voltage, which decreases at a faster rate than the fourth output voltage, causing the output voltage of the electronic load system to decrease rapidly until the output voltage of the electronic load system returns to a steady-state output voltage at the endpoint time. The endpoint time is the fourth time point corresponding to when the fourth voltage value of the preset voltage output curve returns to the steady-state output voltage.

[0130] The prediction end instruction and the output end instruction are generated based on the voltage preset output curve of the electronic load system. For example, the output end instruction is generated at the fourth time node corresponding to the starting point of the period when the voltage preset output curve drops from the target voltage to the steady-state operating voltage, and the prediction end instruction is generated a certain time before the starting point of the period when the voltage preset output curve drops from the target voltage to the steady-state operating voltage, so that the generation time of the prediction end instruction is before the generation time of the output end instruction.

[0131] In some embodiments of the present application, the step S600 of “adjusting the output voltage of the consumer electronic load 100 according to the preset voltage output curve and the decreasing rate of the output voltage of the feedback electronic load 200” is further described. Step S600 includes:

[0132] Step S630 : In response to the prediction end instruction, controlling the consumer electronic load 100 to output at the fifth output voltage, so that the output voltage of the electronic load system is maintained at the target voltage value;

[0133] Step S640: When the output voltage of the feedback electronic load 200 recovers from the target voltage value to the steady-state operating voltage and the preset voltage output curve indicates that the electronic load system needs to maintain output, control the consumer electronic load 100 to output at the sixth output voltage until the output voltage of the electronic load system recovers to the steady-state output voltage.

[0134] In this embodiment, in response to a prediction end instruction, the controller controls the consumable electronic load 100 to output at a fifth output voltage, compensating for the difference between the fourth output voltage and the target voltage, thereby maintaining the output voltage of the electronic load system at the target voltage. When the output voltage of the feedback electronic load 200 recovers from the target voltage to the steady-state operating voltage, and the preset voltage output curve indicates that the electronic load system needs to maintain the target voltage, the controller controls the consumable electronic load 100 to output at a sixth output voltage, i.e., outputting at the difference between the target voltage and the steady-state operating voltage, thereby maintaining the output voltage of the electronic load system at the target voltage. In response to the output end instruction, the controller controls the sixth output voltage of the consumable electronic load 100 to rapidly decrease, causing the output voltage of the electronic load system to rapidly decrease until the output voltage of the electronic load system returns to the steady-state output voltage at the end time node.

[0135] In some embodiments of the present application, the step S600 of “adjusting the output voltage of the consumer electronic load 100 according to the preset voltage output curve and the decreasing rate of the output voltage of the feedback electronic load 200” is further described. Step S600 includes:

[0136] Step S650: If the output voltage of the feedback electronic load 200 has not recovered to the steady-state output voltage and the preset voltage output curve indicates that the electronic load system needs to maintain output, a second intermediate output voltage is determined based on the steady-state output voltage and the fourth output voltage using a second preset prediction model. A seventh output voltage is also determined based on the second intermediate output voltage and the steady-state output voltage, and the consumer electronic load 100 is controlled to output the seventh output voltage.

[0137] Step S650: When the output voltage of the feedback electronic load 200 recovers to the steady-state output voltage and the voltage preset output curve indicates that the electronic load system needs to maintain output, control the consumer electronic load 100 to output at the eighth output voltage until the output voltage of the electronic load system recovers to the steady-state output voltage.

[0138] In this embodiment, in the regenerative electronic load 200, a neural network model is trained using historical data of the electronic load system to obtain a second preset prediction model. If the output voltage of the regenerative electronic load 200 has not recovered to the steady-state output voltage and the preset voltage output curve indicates that the electronic load system needs to maintain the target output voltage, the second preset prediction model is used to determine the voltage value of the fourth output voltage at the next time node based on the steady-state output voltage and the fourth output voltage. Based on the second intermediate output voltage and the steady-state output voltage, the voltage value of the consumer electronic load 100 at the next time node is determined to compensate for the difference between the fourth output voltage and the target voltage value, i.e., to determine the seventh output voltage, and the seventh output voltage of the consumer electronic load 100 is then controlled.

[0139] When the output voltage of the feedback electronic load 200 recovers to the steady-state output voltage and the voltage preset output curve indicates that the electronic load system needs to maintain the output target voltage value, the consumer electronic load 100 is controlled to output at the eighth output voltage until the output voltage of the electronic load system recovers to the steady-state output voltage.

[0140] In some embodiments of the present application, the type of neural network model to be trained is not limited. For example, a long short-term memory network, a sequential convolutional network, or a Transformer model can be trained to obtain a second preset prediction model.

[0141] In some embodiments of the present application, the method further includes a current output control strategy, which includes:

[0142] Step S700: obtaining a first voltage, where the first voltage is the voltage of the power supply 300 under test;

[0143] Step S710: Obtain a second voltage, where the second voltage is the operating voltage of the consumable electronic load 100;

[0144] Step S720: determining a third voltage according to the first voltage and the second voltage;

[0145] Step S730: Control the feedback electronic load 200 to output the third voltage as the port voltage, so that the port voltage of the consumer electronic load 100 is at the second voltage;

[0146] Step S740 : Control the consumable electronic load 100 to output current according to a preset current output curve.

[0147] In this embodiment, since the sum of the port voltage of the consumable electronic load 100 and the port voltage of the regenerative electronic load 200 is the voltage of the power supply under test 300, the voltage of the power supply under test 300 and the operating voltage of the consumable electronic load 100 are obtained by the controller. Based on the voltage of the power supply under test 300 and the operating voltage of the consumable electronic load 100, the difference between the voltage of the power supply under test 300 and the operating voltage of the consumable electronic load 100 can be calculated. Based on the difference, a third voltage can be determined. The sum of the third voltage and the second voltage is equal to the first voltage. The regenerative electronic load 200 is controlled to output the third voltage as the port voltage, so that the port voltage of the consumable electronic load 100 is at the second voltage.

[0148] In some embodiments of the present application, the operating voltage of the consumable electronic load 100 corresponds to the rated voltage drop range that ensures the normal operation of the first MOS transistor Q1. The controller controls the feedback electronic load 200 to output a third voltage as the port voltage. The third voltage is not limited to a specific fixed value; it is sufficient to ensure that the voltage drop of the first MOS transistor Q1 is within the rated voltage drop range to maintain the normal operation of the first MOS transistor Q1. By controlling the first MOS transistor Q1, the controller transfers the output current of the electronic load system to the consumable electronic load 100 for adjustment. Due to the characteristics of the series circuit, the consumable electronic load 100 is adjusted to output current according to a preset current preset output curve, so that the electronic load system outputs current according to the preset current preset output curve, and the electronic load system has a fast response speed.

[0149] In addition, the embodiment of the present application provides a control device applied to an electronic load system, such as Figure 1 As shown, the electronic load system includes a controller ( Figure 1 The consumable electronic load 100 and the regenerative electronic load 200 are connected in series between the positive electrode of the power supply under test and the negative electrode of the power supply under test. Figure 9 As shown, the control device 400 includes:

[0150] An acquisition module 410 is used to acquire a target voltage value;

[0151] A first control module 420 is configured to control the feedback electronic load 200 to output a first output voltage based on a target voltage value;

[0152] A second control module 430 is configured to control the consumable electronic load 100 to output a second output voltage based on the target voltage value and the first output voltage; wherein a rising speed of the second output voltage is greater than a rising speed of the first output voltage;

[0153] The third control module 440 is configured to control the consumable electronic load 100 to output at a third output voltage when the output voltage of the electronic load system is at the target voltage value, so that the output voltage of the electronic load system remains at the target voltage value until the output voltage of the regenerative electronic load 200 reaches the target voltage value, wherein the third output voltage maintains a downward trend.

[0154] The control device 400 provided in the embodiment of the present application can implement each process implemented in the above method embodiment and achieve the same beneficial effects. To avoid repetition, it will not be described here.

[0155] In addition, an embodiment of the present application provides an electronic load system, which is provided with a controller, and when executed, the controller implements the above-mentioned series electronic load output control method.

[0156] The electronic load system provided in the embodiment of the present application can implement each process implemented in the above method embodiment and achieve the same beneficial effects. To avoid repetition, it will not be described here.

[0157] In addition, an embodiment of the present application further discloses an electronic device 500, such as Figure 10 As shown, including:

[0158] at least one processor 510;

[0159] at least one memory 520, for storing at least one program;

[0160] When the at least one program is executed by the at least one processor 510 , the above-mentioned series electronic load output control method is implemented.

[0161] The electronic device 500 provided in the embodiment of the present application can implement each process implemented in the above method embodiment and achieve the same beneficial effects. To avoid repetition, it will not be described here.

[0162] In addition, an embodiment of the present application provides a computer-readable storage medium, which stores a program executable by a processor. When the program executable by the processor is executed by the processor, it is used to implement the above-mentioned series electronic load output control method.

[0163] The computer-readable storage medium provided in the embodiment of the present application can implement each process implemented in the above method embodiment and achieve the same beneficial effects. To avoid repetition, it will not be described here.

[0164] Those skilled in the art will appreciate that all or some of the steps and systems disclosed above can be implemented as software, firmware, hardware, or any combination thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transient media). As is well known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVDs) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0165] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A method for controlling the output of a series electronic load, characterized in that: Applied to an electronic load system, the electronic load system includes a consumable electronic load and a regenerative electronic load, the consumable electronic load and the regenerative electronic load are arranged in series between the positive electrode of a power supply under test and the negative electrode of the power supply under test, the method includes a constant voltage output control strategy, the constant voltage output control strategy includes: Get the target voltage value; Based on the target voltage value, controlling the feedback electronic load to output a first output voltage; Based on the target voltage value and the first output voltage, controlling the consumable electronic load to output at a second output voltage; wherein a rising speed of the second output voltage is greater than a rising speed of the first output voltage; When the output voltage of the electronic load system is at the target voltage value, the consumable electronic load is controlled to output at a third output voltage, so that the output voltage of the electronic load system remains at the target voltage value until the output voltage of the feedback electronic load reaches the target voltage value, wherein the third output voltage maintains a downward trend.

2. The method for controlling the output of a series electronic load according to claim 1, wherein: The step of controlling the feedback electronic load to output a first output voltage based on the target voltage value includes: determining a first rising curve based on the target voltage value; Based on the first rising curve, controlling the feedback electronic load to output the first output voltage; The step of controlling the consumable electronic load to output at a second output voltage based on the target voltage value and the first output voltage includes: determining a second rising curve according to the target voltage value and the first rising curve; Based on the second rising curve, the consumptive electronic load is controlled to output at a second output voltage, wherein the slope of the second rising curve is greater than the slope of the first rising curve.

3. The method for controlling the output of a series electronic load according to claim 2, wherein: The controlling the consumable electronic load to output at a third output voltage so that the output voltage of the electronic load system is maintained at the target voltage value includes: determining a first descending curve according to the target voltage value and the first ascending curve; Based on the first decreasing curve, the consumable electronic load is controlled to output at the third output voltage, so that the output voltage of the electronic load system is maintained at the target voltage value.

4. The method for controlling the output of a series electronic load according to claim 1, wherein: The step of controlling the consumable electronic load to output at a second output voltage based on the target voltage value and the first output voltage includes: Determining a first intermediate output voltage based on the target voltage value and the first output voltage using a first preset prediction model; wherein the first preset prediction model is trained based on historical data of the electronic load system; determining the second output voltage according to the first intermediate output voltage and the target voltage value; The consumptive electronic load is controlled to output at the second output voltage.

5. The method for controlling the output of a series electronic load according to claim 1, wherein: The controlling the consumable electronic load to output at a third output voltage so that the output voltage of the electronic load system is maintained at the target voltage value includes: Determining a first intermediate output voltage based on the target voltage value and the first output voltage using a first preset prediction model; wherein the first preset prediction model is trained based on historical data of the electronic load system; determining the third output voltage according to the first intermediate output voltage and the target voltage value; The consumable electronic load is controlled to output at the third output voltage so that the output voltage of the electronic load system is maintained at the target voltage value.

6. The method for controlling the output of a series electronic load according to claim 1, wherein: The method further comprises: In response to the prediction end instruction, controlling the feedback electronic load to output at a fourth output voltage until the output voltage of the feedback electronic load returns to a steady-state operating voltage; The output voltage of the consumption-type electronic load is adjusted according to the preset voltage output curve and the decreasing speed of the output voltage of the feedback-type electronic load, so that the output voltage of the electronic load system is consistent with the preset voltage output curve.

7. The method for controlling the output of a series electronic load according to claim 6, wherein: The step of adjusting the output voltage of the consumable electronic load according to the preset voltage output curve and the decreasing speed of the output voltage of the feedback electronic load comprises: In response to the prediction end instruction, controlling the consumable electronic load to output at a fifth output voltage so that the output voltage of the electronic load system is maintained at the target voltage value; In response to an output end instruction, controlling the consumable electronic load to output at a sixth output voltage until the output voltage of the electronic load system recovers to a steady-state output voltage; a decreasing rate of the sixth output voltage is greater than a decreasing rate of the fourth output voltage; The output end instruction and the predicted end instruction are determined according to a preset voltage output curve, wherein the output end instruction is generated at the start of a period when the electronic load system drops from a target voltage to a steady-state operating voltage, and the predicted end instruction is generated before the output end instruction is generated.

8. The method for controlling the output of a series electronic load according to claim 6, wherein: The step of adjusting the output voltage of the consumable electronic load according to the preset voltage output curve and the decreasing speed of the output voltage of the feedback electronic load comprises: In response to the prediction end instruction, controlling the consumable electronic load to output at a fifth output voltage so that the output voltage of the electronic load system is maintained at the target voltage value; When the output voltage of the feedback electronic load recovers from the target voltage value to the steady-state operating voltage and the preset voltage output curve indicates that the electronic load system needs to maintain output, the consumption electronic load is controlled to output at a sixth output voltage until the output voltage of the electronic load system recovers to the steady-state output voltage.

9. The method for controlling the output of a series electronic load according to claim 6, wherein: The step of adjusting the output voltage of the consumable electronic load according to the preset voltage output curve and the decreasing speed of the output voltage of the feedback electronic load comprises: If the output voltage of the feedback electronic load has not recovered to the steady-state output voltage and the preset voltage output curve indicates that the electronic load system needs to maintain output, a second intermediate output voltage is determined based on the steady-state output voltage and the fourth output voltage using a second preset prediction model, and a seventh output voltage is determined based on the second intermediate output voltage and the steady-state output voltage, and the consumable electronic load is controlled to output at the seventh output voltage; wherein the second preset prediction model is trained based on historical data of the electronic load system; When the output voltage of the feedback electronic load recovers to a steady-state output voltage and the preset voltage output curve indicates that the electronic load system needs to maintain output, the consumption electronic load is controlled to output at an eighth output voltage until the output voltage of the electronic load system recovers to a steady-state output voltage.

10. The method for controlling the output of a series electronic load according to claim 1, wherein: The method further includes a current output control strategy, wherein the current output control strategy includes: Obtaining a first voltage, where the first voltage is the voltage of the power supply under test; Obtaining a second voltage, where the second voltage is an operating voltage of the consumable electronic load; determining a third voltage based on the first voltage and the second voltage; Controlling the feedback electronic load to output the third voltage as the port voltage, so that the port voltage of the consumption electronic load is at the second voltage; The consumable electronic load is controlled to output current according to a preset current preset output curve.

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