Hybrid current control method and apparatus, electronic device, and medium

Abstract

A hybrid current control method and apparatus, an electronic device, and a medium, applied to the field of inverters. The method comprises: determining a target current value on the basis of an alternating current voltage feedback value and a target voltage value; when the target current value is greater than a comparator current upper limit value and less than a target current upper limit value, on the basis of current loop control in an inverter, determining a current feedback value and an original inductance current value corresponding to the target current value; clamping the original inductance current value on the basis of the comparator current upper limit value, so as to obtain a target inductance current value; and if a current peak value corresponding to the target inductance current value is greater than the comparator current upper limit value, disabling pulse width modulation, so as to reduce the target inductance current value. In the present application, an inductance current is reduced by means of clamping a current peak value, and a switching frequency is increased by means of disabling pulse width modulation, so that the problem of incapability of responding promptly by a main control chip when the inductance current in the inverter undergoes a sudden change in slope is avoided, thereby improving the safety of the inverter.

Description

A hybrid current control method, device, electronic equipment, and medium

[0001] This application claims priority to Chinese Patent Application No. 202411449732.9, filed on October 16, 2024, entitled "A Hybrid Current Control Method, Apparatus, Electronic Device and Medium", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of inverters, and in particular to a hybrid current control method, apparatus, electronic device, and medium. Background Technology

[0003] Currently, the internal current control scheme for inverters generally employs a proportional-integral (PI) control scheme with dual closed-loop voltage and current average current control. However, this scheme is limited by the control frequency of the main control chip; the pulse-width modulation (PWM) control speed in the inverter is typically higher than the control frequency of the main control chip. Therefore, if a significant voltage change occurs across the inductor within the control interval of the main control chip, causing a sudden change in the inductor current slope, the main control chip cannot respond promptly during the control interruption interval. This results in excessive current flowing through the power transistors, potentially damaging the inverter.

[0004] In view of the above-mentioned technologies, finding a hybrid current control method is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a hybrid current control method, device, electronic device and medium, which can solve the problem in the prior art that when the inductor current slope changes abruptly, the main control chip cannot respond in time during the control interruption interval, thereby causing damage to the inverter.

[0006] To address the aforementioned technical problems, this application provides a hybrid current control method, comprising:

[0007] The target current value is determined based on the AC voltage feedback value and the target voltage value;

[0008] When the target current value is greater than the comparator current upper limit and less than the target current upper limit, the original inductor current value corresponding to the current feedback value and the target current value is determined based on the current loop control in the inverter.

[0009] The original inductor current value is clamped according to the upper limit of the comparator current to obtain the target inductor current value;

[0010] Obtain the peak value of the target inductor current. If the peak value of the current is greater than the upper limit of the comparator current, turn off pulse width modulation to reduce the target inductor current value.

[0011] Preferably, it further includes:

[0012] When the target current value is not greater than the comparator current upper limit, the original inductor current value corresponding to the current feedback value and the target current value is determined based on the current loop control in the inverter, and the current pulse width modulation state is maintained.

[0013] Preferably, determining the target current value based on the AC voltage feedback value and the target voltage value includes:

[0014] Obtain AC voltage feedback value;

[0015] Obtain the target voltage value;

[0016] Based on the voltage loop control in the inverter, the target current value corresponding to the AC voltage feedback value and the target voltage value is determined.

[0017] Preferably, after reducing the target inductor current value, the method further includes:

[0018] Real-time acquisition of the reduced target inductor current value;

[0019] If the reduced target inductor current value is not greater than the preset current threshold, then pulse width modulation is enabled to increase the current target inductor current value, and it is determined whether the increased target inductor current value is greater than the comparator current upper limit; wherein the preset current threshold is less than the comparator current upper limit.

[0020] Preferably, after reducing the target inductor current value, the method further includes:

[0021] Obtain the target time;

[0022] Determine whether the time required to reduce the target inductor current value is not less than the target time;

[0023] If the time for reducing the target inductor current value is not less than the target time, then pulse width modulation is enabled to increase the current target inductor current value, and it is determined whether the increased target inductor current value is greater than the comparator current upper limit.

[0024] If the time for reducing the target inductor current value is less than the target time, then the current pulse width modulation state is maintained.

[0025] Preferably, obtaining the target time includes:

[0026] Obtain the preset current threshold;

[0027] Obtain the rate at which the target inductor current value is reduced;

[0028] The target time is determined based on the preset current threshold and the rate of decrease.

[0029] To address the aforementioned technical problems, this application also provides a hybrid current control device, comprising:

[0030] The first determining module is used to determine the target current value based on the AC voltage feedback value and the target voltage value;

[0031] The second determining module is used to determine the current feedback value and the original inductor current value corresponding to the target current value based on the current loop control in the inverter when the target current value is greater than the comparator current upper limit value and less than the target current upper limit value.

[0032] The clamping module is used to clamp the original inductor current value according to the comparator current upper limit value in order to obtain the target inductor current value.

[0033] The control module is turned off to obtain the peak current value of the target inductor current. If the peak current value is greater than the comparator current limit, pulse width modulation is turned off to reduce the target inductor current value.

[0034] Preferably, it further includes:

[0035] The maintenance control unit is used to determine the original inductor current value corresponding to the current feedback value and the target current value based on the current loop control in the inverter when the target current value is not greater than the comparator current upper limit value, and to maintain the current pulse width modulation state.

[0036] To address the aforementioned technical problems, this application also provides an electronic device, including a memory for storing computer programs;

[0037] The processor is used to implement the steps of the above-described hybrid current control method when executing a computer program.

[0038] To address the aforementioned technical problems, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the aforementioned hybrid current control method.

[0039] This application provides a hybrid current control method, comprising: determining a target current value based on an AC voltage feedback value and a target voltage value; when the target current value is greater than the comparator current upper limit but less than the target current upper limit, determining the original inductor current value corresponding to the current feedback value and the target current value based on current loop control in the inverter; clamping the original inductor current value according to the comparator current upper limit to obtain the target inductor current value; obtaining the peak current value of the target inductor current, and if the peak current value is greater than the comparator current upper limit, disabling pulse width modulation to reduce the target inductor current value. Specifically, this application reduces the inductor current by clamping the peak current value and increases the switching frequency by disabling pulse width modulation, thereby avoiding the problem that the main control chip cannot respond in time during the control interruption interval when the inductor current slope in the inverter changes abruptly, thus improving the safety of inverter operation. Attached Figure Description

[0040] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 is a flowchart of a hybrid current control method provided in an embodiment of this application;

[0042] Figure 2 is a structural diagram of the inverter provided in an embodiment of this application;

[0043] Figure 3 is a first waveform diagram of the characterization current curve provided in an embodiment of this application;

[0044] Figure 4a is a second waveform diagram of the characterization current curve provided in an embodiment of this application;

[0045] Figure 4b is a third waveform diagram of the current characterization curve provided in the embodiment of this application;

[0046] Figure 4c shows the fourth waveform diagram of the characterization current curve provided in the embodiments of this application;

[0047] Figure 5 is a logic control diagram provided in an embodiment of this application;

[0048] Figure 6 is a block diagram of a hybrid current control device provided in another embodiment of this application;

[0049] Figure 7 is a structural diagram of an electronic device provided in another embodiment of this application. Detailed Implementation

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0051] The core of this application is to provide a hybrid current control method, device, electronic device, and medium.

[0052] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] Figure 1 is a flowchart of a hybrid current control method provided in an embodiment of this application. As shown in Figure 1, it includes the following steps:

[0054] S10: Determine the target current value based on the AC voltage feedback value and the target voltage value.

[0055] S12: When the target current value is greater than the comparator current upper limit but less than the target current upper limit, the original inductor current value corresponding to the current feedback value and the target current value is determined based on the current loop control in the inverter.

[0056] S13: Clamp the original inductor current value according to the upper limit of the comparator current to obtain the target inductor current value.

[0057] S14: Obtain the peak current value of the target inductor current. If the peak current value is greater than the comparator current upper limit, turn off pulse width modulation to reduce the target inductor current value.

[0058] In a specific embodiment, the hybrid current control method provided in this application is applied to an inverter as shown in Figure 2. The inverter includes a power supply Ve; capacitors C1, C2 and C3; MOSFETs Q1, Q2, Q3 and Q4; inductors L1 and L2; and switch S1. The first terminal of capacitor C3, the source of MOSFET Q1, and the source of MOSFET Q3 are all connected to the positive terminal of power supply Ve; the second terminal of capacitor C3, the drain of MOSFET Q2, and the drain of MOSFET Q4 are all connected to the negative terminal of power supply Ve; the drain of MOSFET Q1 is connected to the source of MOSFET Q2 and the first terminal of inductor L1; the drain of MOSFET Q3 is connected to the source of MOSFET Q4 and the first terminal of inductor L2; the second terminal of inductor L1 is connected to the first terminal of capacitor C1 and the first terminal of switch S1; the second terminal of inductor L2 is connected to the second terminal of capacitor C1 and the second terminal of switch S1; the third terminal of switch S1 is connected to the first terminal of capacitor C2 and the first terminal of the motor-type load; the fourth terminal of switch S1 is connected to the second terminal of capacitor C2 and the second terminal of the motor-type load. The inverter principle under this structure is as follows: In a typical interrupt cycle, several sets of drives (MOSFETs Q1-Q4) will appear simultaneously, and these sets of drives will use the same pulse width modulation duty cycle until the next interrupt cycle arrives, at which point it will be updated. If the voltage across the inverter's inductors (inductors L1 and L2) changes significantly at this time, the pulse width modulation cannot change in time, which may lead to excessive current in the power transistors and damage in severe cases.

[0059] Therefore, this application proposes a hybrid current control method based on this structure. Since the current inverter uses dual closed-loop control of inductor current, it can be based on voltage loop control, using the AC voltage feedback value and the target voltage value as the input of the voltage loop to obtain the target current output of the voltage loop. When the target current value is greater than the comparator current upper limit but less than the target current upper limit, it indicates that the target current value in the current circuit has exceeded the limit of the power transistor. At this time, it is necessary to perform inductor current peak locking control, that is, based on the current loop control in the inverter, determine the original inductor current value corresponding to the current feedback value and the target current value. Then, the original inductor current value is clamped according to the comparator current upper limit to obtain the target inductor current value. Thus, the power transistor in the protection circuit is protected by the target inductor current value determined after clamping, and the off-grid load capacity of the inverter is improved by the target inductor current value at this time. After determining the peak current, it is necessary to judge it. If the peak current exceeds the comparator current limit, the power transistor in the inverter will turn off pulse width modulation to reduce the target inductor current value. In order to avoid the target inductor current value determined after clamping being reduced too much, resulting in excessive ripple of the target inductor current, pulse width modulation needs to be re-driven after a certain period of time to increase the switching frequency.

[0060] In addition, when the target current value is not greater than the comparator current limit, it means that the target current value is also less than the target current limit. This indirectly indicates that the current target current value has not exceeded the current limit of the power transistor in the circuit. At this time, the inductor current value determined by the target current value and the current feedback value is the original inductor current value. At this time, there is no need to change the state of pulse width modulation.

[0061] This application provides a hybrid current control method, comprising: determining a target current value based on an AC voltage feedback value and a target voltage value; when the target current value is greater than the comparator current upper limit but less than the target current upper limit, determining the original inductor current value corresponding to the current feedback value and the target current value based on current loop control in the inverter; clamping the original inductor current value according to the comparator current upper limit to obtain the target inductor current value; obtaining the peak current value of the target inductor current, and if the peak current value is greater than the comparator current upper limit, disabling pulse width modulation to reduce the target inductor current value. Specifically, this application reduces the inductor current by clamping the peak current value and increases the switching frequency by disabling pulse width modulation, thereby avoiding the problem that the main control chip cannot respond in time during the control interruption interval when the inductor current slope in the inverter changes abruptly, thus improving the safety of inverter operation.

[0062] Based on the above embodiments, as a preferred embodiment, the specific steps for determining the target current value according to the AC voltage feedback value and the target voltage value are as follows: obtaining the AC voltage feedback value; obtaining the target voltage value; and determining the target current value corresponding to the AC voltage feedback value and the target voltage value based on the voltage loop control in the inverter.

[0063] In a specific embodiment, the current inverter employs dual closed-loop control of inductor current, thus allowing the AC voltage feedback value v in the current inverter to be obtained first. fb and target voltage value v target Then, the AC voltage feedback value v fb and target voltage value v target As the input to the voltage loop control, the target current value i corresponding to the voltage loop control output is then obtained. target For current loop control, the target current value i target As an input to the current loop control, it is also necessary to obtain the current feedback value i in the current inverter. fb Therefore, the target current value i is set at this time. target and current feedback value i fb This serves as the input to the current loop control, thereby outputting the inductor current value i2. During this process, clamping or other actions may be required on the inductor current value i2; therefore, an upper limit value i for the comparator current also needs to be defined. peak1 and the target current upper limit value ipeak2 The upper limit of the target current i peak2 It's in the current loop. When the target current value i target Not greater than the comparator current upper limit i peak1 At that time, the target current i in the input of the current loop control target Unaffected, the actual output inductor current value i2 is shown in Figure 3. However, when the target current value i... target Greater than the comparator current upper limit i peak1 And less than the target current upper limit value i peak2 At that time, the target current i in the input of the current loop control target It is unaffected, but the actual output inductor current value i2 is limited by the comparator current upper limit i. peak1 Clamping, i.e., obtaining the target inductor current value determined after clamping, as shown in Figures 4a and 4b. In Figure 4a, the target current value i... target Compared to Figure 4b, it is larger, therefore the inductor current value i obtained accordingly is... 2a Greater than i 2b As shown in Figure 4c, the blackened area in Figure 4c is i. 2a Than i 2b The majority. Therefore, it can be seen that the hardware comparator limits the comparator current upper limit i. peak1 Under the premise of increasing the target current value i target Limiting the range of restrictions can effectively increase the inverter's load capacity.

[0064] Based on the above embodiments, as a preferred embodiment, after reducing the clamping inductor current value, a series of operations need to be performed on pulse width modulation, which are specifically divided into two types. The first type is: real-time acquisition of the reduced target inductor current value; if the reduced target inductor current value is not greater than the preset current threshold, then pulse width modulation is enabled to increase the current target inductor current value, and it is determined whether the increased target inductor current value is greater than the comparator current upper limit value; wherein the preset current threshold value is less than the comparator current upper limit value.

[0065] The second method involves: obtaining a preset current threshold; obtaining the rate at which the target inductor current value is reduced; determining the corresponding target time based on the preset current threshold and the rate of reduction; determining whether the time for reducing the target inductor current value is not less than the target time; if the time for reducing the target inductor current value is not less than the target time, then pulse width modulation is enabled to increase the current target inductor current value, and it is determined whether the increased target inductor current value is greater than the comparator current upper limit; if the time for reducing the target inductor current value is less than the target time, then the current pulse width modulation state is maintained.

[0066] In specific embodiments, regardless of which of the above methods is used, the purpose is to ensure that the inductor current value i2 is not too low, thus preventing excessive inductor current ripple. Therefore, when the inductor current value i2 (target inductor current value or original inductor current value) drops to a preset current threshold, since the process of reducing the target inductor current value i2 is achieved by disabling pulse width modulation (PWM), it is necessary to re-drive PWM to increase the current inductor current value i2. The control logic is shown in Figure 5. If PWM is not disabled, the curve representing the real-time inductor current value i1 will continue to rise. When this scheme is used for inductor current limiting, the curve representing the inductor current value i2 fluctuates within a certain range. The continuous driving and disabling of PWM increases the switching frequency and reduces the overall peak value of the inductor current, thereby protecting devices such as power transistors in the inverter. In Figure 5, t1 represents the target time, where ON represents driving PWM and OFF represents disabling PWM.

[0067] Therefore, in summary, the hybrid current control method provided in this application includes: determining a target current value based on the AC voltage feedback value and the target voltage value; when the target current value is greater than the comparator current upper limit but less than the target current upper limit, determining the original inductor current value corresponding to the current feedback value and the target current value based on the current loop control in the inverter; clamping the original inductor current value according to the comparator current upper limit to obtain the target inductor current value; obtaining the current peak value of the target inductor current value; if the current peak value is greater than the comparator current upper limit, then disabling pulse width modulation to reduce the target inductor current value. This application reduces the inductor current by clamping the current peak value and increases the switching frequency by disabling pulse width modulation, thereby avoiding the problem that the main control chip cannot respond in time during the control interruption interval when the inductor current slope in the inverter changes abruptly, thus improving the safety of inverter use. Simultaneously, this application also increases the limiting range of the target current value, thereby effectively increasing the inverter's load-carrying capacity.

[0068] In the above embodiments, the hybrid current control method has been described in detail. This application also provides embodiments corresponding to the hybrid current control device. It should be noted that this application describes the embodiments of the device from two perspectives: one is based on the functional modules, and the other is based on the hardware.

[0069] Figure 6 is a block diagram of a hybrid current control device according to another embodiment of this application, including:

[0070] The first determining module 11 is used to determine the target current value based on the AC voltage feedback value and the target voltage value;

[0071] The second determining module 12 is used to determine the current feedback value and the original inductor current value corresponding to the target current value based on the current loop control in the inverter when the target current value is greater than the comparator current upper limit value and less than the target current upper limit value.

[0072] Clamping module 13 is used to clamp the original inductor current value according to the comparator current upper limit value in order to obtain the target inductor current value.

[0073] The control module 14 is turned off to obtain the peak current value of the target inductor current. If the peak current value is greater than the upper limit of the comparator current, the pulse width modulation is turned off to reduce the target inductor current value.

[0074] As a preferred embodiment, the hybrid current control device further includes:

[0075] The maintenance control unit is used to determine the original inductor current value corresponding to the current feedback value and the target current value based on the current loop control in the inverter when the target current value is not greater than the comparator current upper limit value, and to maintain the current pulse width modulation state.

[0076] Since the embodiments of the apparatus and the embodiments of the method correspond to each other, please refer to the description of the embodiments of the method for the embodiments of the apparatus, which will not be repeated here.

[0077] Figure 7 is a structural diagram of an electronic device provided in another embodiment of this application. As shown in Figure 7, the electronic device includes: a memory 20 for storing computer programs;

[0078] The processor 21 is configured to implement the steps of the hybrid current control method as described in the above embodiments when executing a computer program.

[0079] The electronic devices provided in this embodiment may include, but are not limited to, smartphones, tablets, laptops, or desktop computers.

[0080] The processor 21 may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor 21 may be implemented using at least one of the following hardware forms: Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 21 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor 21 may also include an Artificial Intelligence (AI) processor, which is used to handle computational operations related to machine learning.

[0081] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory 20 is used to store at least the following computer program 201, which, after being loaded and executed by the processor 21, is capable of implementing the relevant steps of the hybrid current control method disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, and the storage method may be temporary storage or permanent storage. The operating system 202 may include Windows, Unix, Linux, etc.

[0082] In some embodiments, the electronic device may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.

[0083] Those skilled in the art will understand that the structure shown in Figure 7 does not constitute a limitation on the electronic device and may include more or fewer components than shown.

[0084] The electronic device provided in this application includes a memory and a processor. When the processor executes the program stored in the memory, it can implement the above-described hybrid current control method and has the same beneficial effects.

[0085] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the above method embodiments.

[0086] It is understood that if the methods in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0087] The foregoing has provided a detailed description of a hybrid current control method, apparatus, electronic device, and medium provided in this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0088] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A hybrid current control method, characterized in that, include: The target current value is determined based on the AC voltage feedback value and the target voltage value; When the target current value is greater than the comparator current upper limit and less than the target current upper limit, the current feedback value and the original inductor current value corresponding to the target current value are determined based on the current loop control in the inverter. The original inductor current value is clamped according to the upper limit value of the comparator current to obtain the target inductor current value; The peak current value of the target inductor current is obtained. If the peak current value is greater than the upper limit of the comparator current, pulse width modulation is turned off to reduce the target inductor current value.

2. The hybrid current control method according to claim 1, characterized in that, Also includes: When the target current value is not greater than the comparator current upper limit, the original inductor current value corresponding to the current feedback value and the target current value is determined based on the current loop control in the inverter, and the current pulse width modulation state is maintained.

3. The hybrid current control method according to claim 1, characterized in that, The step of determining the target current value based on the AC voltage feedback value and the target voltage value includes: Obtain the AC voltage feedback value; Obtain the target voltage value; Based on the voltage loop control in the inverter, the target current value corresponding to the AC voltage feedback value and the target voltage value is determined.

4. The hybrid current control method according to claim 1, characterized in that, After reducing the target inductor current value, the method further includes: Real-time acquisition of the reduced target inductor current value; If the reduced target inductor current value is not greater than a preset current threshold, then the pulse width modulation is activated to increase the current target inductor current value, and it is determined whether the increased target inductor current value is greater than the comparator current upper limit value; wherein the preset current threshold value is less than the comparator current upper limit value.

5. The hybrid current control method according to any one of claims 1-4, characterized in that, After reducing the target inductor current value, the method further includes: Obtain the target time; Determine whether the time for reducing the target inductor current value is not less than the target time; If the time for reducing the target inductor current value is not less than the target time, then the pulse width modulation is activated to increase the current target inductor current value, and it is determined whether the increased target inductor current value is greater than the comparator current upper limit value. If the time for reducing the target inductor current value is less than the target time, then the current pulse width modulation state is maintained.

6. The hybrid current control method according to claim 5, characterized in that, The acquisition of the target time includes: Obtain the preset current threshold; Obtain the rate at which the target inductor current value is reduced; The target time is determined based on the preset current threshold and the reduction speed.

7. A hybrid current control device, characterized in that, include: The first determining module is used to determine the target current value based on the AC voltage feedback value and the target voltage value; The second determining module is used to determine the current feedback value and the original inductor current value corresponding to the target current value based on the current loop control in the inverter when the target current value is greater than the comparator current upper limit value and less than the target current upper limit value. A clamping module is used to clamp the original inductor current value according to the upper limit value of the comparator current in order to obtain the target inductor current value. The control module is turned off to obtain the peak current value of the target inductor current. If the peak current value is greater than the upper limit of the comparator current, the pulse width modulation is turned off to reduce the target inductor current value.

8. The hybrid current control device according to claim 7, characterized in that, Also includes: The control unit is configured to determine the original inductor current value corresponding to the current feedback value and the target current value based on the current loop control in the inverter when the target current value is not greater than the comparator current upper limit value, and maintain the current pulse width modulation state.

9. An electronic device, characterized in that, Includes memory used to store computer programs; A processor for executing the computer program to implement the steps of the hybrid current control method as described in any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the hybrid current control method as described in any one of claims 1 to 6.

Images