Switching state control method and device of wireless power transmission system and electronic equipment

Abstract

The application provides a switching state control method and device of a wireless power transmission system and electronic equipment, and relates to the technical field of wireless power transmission. The method comprises the following steps: selecting a target electrical characteristic parameter based on the dynamic priority of the electrical characteristic parameter of the wireless power transmission system. Then, the preset size relationship satisfied by the other electrical characteristic parameters in the electrical characteristic parameter except the target electrical characteristic parameter and the corresponding preset threshold value is set as a constraint condition. Further, the switching state of the wireless power transmission system is iteratively updated by using a preset algorithm in combination with the constraint condition, and the value of the target electrical characteristic parameter is calculated based on the updated switching state. The iteration is stopped when the value of the target electrical characteristic parameter meets a preset convergence condition, and the switching state control instruction for controlling the wireless power transmission system to perform the corresponding switching action is generated based on the current switching state of the wireless power transmission system. The application can guarantee the adaptability and stability of the wireless power transmission system under complex operating environments.

Description

Technical Field

[0001] This application relates to the field of wireless power transmission technology, and in particular to a method, apparatus and electronic device for controlling the switching status of a wireless power transmission system. Background Technology

[0002] Wireless power transmission systems, which achieve contactless energy transfer through high-frequency electromagnetic fields, have become an important direction in modern energy transmission. In different application scenarios, it is often necessary to adjust the switching status of wireless power transmission systems to balance power, efficiency, cost, and other factors.

[0003] However, existing wireless power transmission systems are typically designed based on pre-defined coupling structures and parameters. That is, static configuration is first completed according to the target power, frequency, and coil parameters, and then energy transmission is carried out according to pre-set switching states.

[0004] Therefore, existing technologies cannot guarantee the adaptability and stability of wireless power transmission systems in complex operating environments. Summary of the Invention

[0005] This application provides a method, apparatus, and electronic device for controlling the switching status of a wireless power transmission system, in order to solve the technical problem that the prior art cannot guarantee the adaptability and stability of the wireless power transmission system in complex operating environments.

[0006] In a first aspect, this application provides a method for controlling the switching state of a wireless power transmission system, comprising:

[0007] Target electrical characteristic parameters are selected based on the dynamic priority of electrical characteristic parameters of the wireless power transmission system.

[0008] The preset size relationship between the other electrical characteristic parameters (excluding the target electrical characteristic parameter) and their corresponding preset thresholds is set as a constraint condition.

[0009] In accordance with the aforementioned constraints, a preset algorithm is used to iteratively update the switching status of the wireless power transmission system, and the value of the target electrical characteristic parameter is calculated based on the updated switching status; wherein, the switching status is used to indicate whether the transmitting coil group and / or receiving coil group of the wireless power transmission system are connected to the circuit;

[0010] The iteration stops when the value of the target electrical characteristic parameter meets the preset convergence condition, and a corresponding switching state control command is generated based on the current switching state of the wireless power transmission system; wherein, the switching state control command is used to control the wireless power transmission system to perform the corresponding switching action.

[0011] In one possible design, a preset algorithm is used to iteratively update the switching state of the wireless power transmission system, including:

[0012] Obtain a pre-constructed switching state combination table; wherein, the switching state combination table includes multiple switching state combinations composed of the switching states of the transmitting coil group and / or the receiving coil group in the wireless power transmission system;

[0013] A preset algorithm is used to traverse and optimize the switching state combination table in order to iteratively update the switching state of the wireless power transmission system.

[0014] In one possible design, a preset algorithm is used to traverse and optimize the switching state combination table, including:

[0015] The first algorithm is used to perform a global search on the throwing and switching state combination table to determine the initial throwing and switching state combination;

[0016] Based on the other throwing and cutting state combinations in the throwing and cutting state combination table besides the initial throwing and cutting state combination, the second algorithm is used to perform optimization and replacement processing on the initial throwing and cutting state combination.

[0017] The preset algorithm includes the first algorithm and the second algorithm.

[0018] In one possible design, the method further includes, before obtaining the pre-built table of switching state combinations:

[0019] The switching states of the transmitting coil group and / or the receiving coil group of the wireless power transmission system are binary encoded to obtain the transmitting switching state encoding value and / or the receiving switching state encoding value.

[0020] Enumerate the switching status coding values ​​of the transmitting end and / or the switching status coding values ​​of the receiving end to generate multiple switching status combinations;

[0021] Based on the various combinations of switching states, a switching state combination table is constructed.

[0022] In one possible design, the value of the target electrical characteristic parameter is calculated based on the updated switching state, including:

[0023] Based on the updated switching status, the operating parameters of the wireless power transmission system are determined;

[0024] Based on the operating parameters, the values ​​of the target electrical characteristic parameters are calculated.

[0025] In one possible design, the switching state control command includes a transmitter control command and / or a receiver control command;

[0026] After generating the corresponding switching state control command, the method further includes:

[0027] The transmitter control command is sent to the transmitter drive circuit in the wireless power transmission system to control the transmitter switching switch on the transmitter drive circuit to perform the corresponding switching action; and / or, the receiver control command is sent to the receiver drive circuit in the wireless power transmission system to control the receiver switching switch on the receiver drive circuit to perform the corresponding switching action.

[0028] In one possible design, before selecting the target electrical characteristic parameter based on the dynamic priority of the electrical characteristic parameters of the wireless power transmission system, the method further includes:

[0029] Obtain real-time environmental status data of the wireless power transmission system;

[0030] Based on the real-time environmental status data, dynamic priorities are set for each electrical characteristic parameter of the wireless power transmission system.

[0031] Secondly, this application provides a switching status control device for a wireless power transmission system, comprising:

[0032] The selection module is used to select target electrical characteristic parameters based on the dynamic priority of the electrical characteristic parameters of the wireless power transmission system.

[0033] The setting module is used to set the preset size relationship between the electrical characteristic parameters other than the target electrical characteristic parameter and the corresponding preset threshold as a constraint condition;

[0034] The processing module is used to iteratively update the switching status of the wireless power transmission system using a preset algorithm in combination with the constraints, and to calculate the value of the target electrical characteristic parameter based on the updated switching status; wherein, the switching status is used to indicate whether the transmitting coil group and / or receiving coil group of the wireless power transmission system are connected to the circuit;

[0035] The generation module is used to stop iterating when the value of the target electrical characteristic parameter meets the preset convergence condition, and to generate a corresponding switching state control instruction based on the current switching state of the wireless power transmission system; wherein, the switching state control instruction is used to control the wireless power transmission system to perform the corresponding switching action.

[0036] In one possible design, the processing module includes:

[0037] The acquisition submodule is used to acquire a pre-built switching state combination table; wherein, the switching state combination table includes multiple switching state combinations composed of the switching states of the transmitting coil group and / or the receiving coil group in the wireless power transmission system;

[0038] The processing submodule is used to perform traversal optimization processing on the switching state combination table using a preset algorithm to iteratively update the switching state of the wireless power transmission system.

[0039] In one possible design, the processing submodule includes:

[0040] A search component is used to perform a global search on the switching state combination table using a first algorithm to determine the initial switching state combination.

[0041] The processing component is used to perform optimization and replacement processing on the initial throwing state combination based on other throwing state combinations besides the initial throwing state combination in the throwing state combination table, using a second algorithm.

[0042] The preset algorithm includes the first algorithm and the second algorithm.

[0043] In one possible design, the processing module further includes:

[0044] The encoding submodule is used to perform binary encoding on the switching state of the transmitting coil group and / or the receiving coil group of the wireless power transmission system to obtain the transmitting switching state encoding value and / or the receiving switching state encoding value.

[0045] Build submodules for:

[0046] Enumerate the switching status coding values ​​of the transmitting end and / or the switching status coding values ​​of the receiving end to generate multiple switching status combinations;

[0047] Based on the various combinations of switching states, a switching state combination table is constructed.

[0048] In one possible design, the processing module further includes:

[0049] The determination submodule is used to determine the operating parameters of the wireless power transmission system based on the updated switching status;

[0050] The calculation submodule is used to calculate the value of the target electrical characteristic parameter based on the operating parameters.

[0051] In one possible design, the switching state control command includes a transmitter control command and / or a receiver control command;

[0052] The switching status control device of the wireless power transmission system further includes: a transmitting module, used for:

[0053] The transmitter control command is sent to the transmitter drive circuit in the wireless power transmission system to control the transmitter switching switch on the transmitter drive circuit to perform the corresponding switching action; and / or, the receiver control command is sent to the receiver drive circuit in the wireless power transmission system to control the receiver switching switch on the receiver drive circuit to perform the corresponding switching action.

[0054] In one possible design, the switching status control device of the wireless power transmission system further includes: an acquisition module for acquiring real-time environmental status data of the wireless power transmission system;

[0055] The setting module is also used to set dynamic priorities for each electrical characteristic parameter of the wireless power transmission system based on the real-time environmental status data.

[0056] Thirdly, this application provides an electronic device comprising: at least one processor and a memory; the memory storing computer-executable instructions; the at least one processor executing the computer-executable instructions stored in the memory, causing the at least one processor to perform the method described in the first aspect and / or various possible designs of the first aspect.

[0057] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the method described in the first aspect and / or various possible designs of the first aspect.

[0058] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the method described in the first aspect and / or various possible designs of the first aspect.

[0059] The switching state control method, apparatus, and electronic device for a wireless power transmission system provided in this application select a target electrical characteristic parameter based on the dynamic priority of the electrical characteristic parameters of the wireless power transmission system. Subsequently, the preset magnitude relationships between other electrical characteristic parameters (excluding the target electrical characteristic parameter) and their corresponding preset thresholds are set as constraints. Further, in conjunction with the constraints, a preset algorithm iteratively updates the switching state of the wireless power transmission system, and calculates the value of the target electrical characteristic parameter based on the updated switching state. The switching state indicates whether the transmitting coil group and / or receiving coil group of the wireless power transmission system are connected to the circuit. Iteration stops when the value of the target electrical characteristic parameter meets a preset convergence condition, and a corresponding switching state control command is generated based on the current switching state of the wireless power transmission system. This switching state control command is used to control the wireless power transmission system to perform the corresponding switching action. This application connects dynamic priority selection, constraint construction, switching state iterative solution, and converged command mapping execution into a unified control flow, which can comprehensively consider multiple electrical characteristic parameters and their inter-constraint relationships during system operation. This enables the control process of switching states to adaptively adjust to changes in system operating conditions and boundary constraints, thereby achieving the adaptability and stability of the wireless power transmission system in complex operating environments. Attached Figure Description

[0060] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0061] Figure 1 A schematic diagram of the wireless power transmission system architecture for the switching state control method of the wireless power transmission system provided in the embodiments of this application;

[0062] Figure 2 A flowchart illustrating the switching state control method of a wireless power transmission system provided in this application embodiment;

[0063] Figure 3 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 1 ;

[0064] Figure 4 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 2 ;

[0065] Figure 5 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 3 ;

[0066] Figure 6A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 4 ;

[0067] Figure 7 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 5 ;

[0068] Figure 8 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 6 ;

[0069] Figure 9 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 7 ;

[0070] Figure 10 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 8 ;

[0071] Figure 11 A schematic diagram of the switching status control device of the wireless power transmission system provided in the embodiments of this application;

[0072] Figure 12 This is a hardware structure diagram of the electronic device provided in the embodiments of this application.

[0073] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0074] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0075] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0076] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0077] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with relevant laws, regulations and standards, and corresponding operation entry points are provided for users to choose to authorize or refuse.

[0078] Wireless power transmission systems, as an important direction for modern energy transmission, have been widely used in industrial robots, automated production lines, home appliances, and electric vehicles.

[0079] For example, in industrial settings where equipment needs to move frequently in non-fixed locations, wireless power transmission systems utilize high-frequency electromagnetic fields to achieve contactless energy transfer, significantly improving equipment flexibility and safety. As another example, in wireless charging scenarios for electric vehicles, wireless power transmission systems can maintain high power transmission while meeting high electromagnetic compatibility requirements.

[0080] For wireless power transmission systems, maintaining stable functionality under conditions of relative movement, installation deviations, or load changes places high demands on their adaptability to switching states. This means that in different application scenarios, it is often necessary to adjust the switching states of the wireless power transmission system to balance power, efficiency, cost, and other factors.

[0081] Existing wireless power transmission systems are typically designed based on pre-defined coupling structures and parameters. That is, static configuration is first completed according to the target power, frequency, and coil parameters, and then energy transmission is carried out according to pre-set switching states.

[0082] However, when the relative positions of the transmitter and receiver in a wireless power transmission system shift, or when there are load fluctuations or changes in external interference, the magnetic field coupling state between them will change. Since the wireless power transmission system is a fixed structure, it cannot dynamically adjust its switching state according to environmental changes, which may lead to unstable power transmission.

[0083] Furthermore, existing technologies lack a mechanism to dynamically select and map various electrical characteristic parameters according to operational requirements to the actual switching control, resulting in a serious disconnect between the control results of the switching state and the operating state of the coil group, which in turn affects the adaptability and stability of the wireless power transmission system in complex operating environments.

[0084] This application, starting from practical engineering needs, first identifies the inability of fixed-coupled structures in wireless power transmission systems to adapt to issues such as relative position offsets and load fluctuations. To address these problems, it proposes dynamically controlling the switching states of the wireless power transmission system through switching switches. To address the adaptability of the wireless power transmission system to its operating environment, a multi-objective constraint algorithm is introduced, setting key performance indicators as optimization objectives and other performance indicators as constraints. Furthermore, by combining relevant algorithms and iterative update processes, the required switching states of the wireless power transmission system are calculated. Thus, through the joint design of algorithms and hardware, the adaptability and stability of the wireless power transmission system in complex operating environments are ensured.

[0085] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0086] This application provides a method for controlling the switching state of a wireless power transmission system. Illustratively, the wireless power transmission system, as the object of this application embodiment, includes at least a transmitting coil group, a transmitting drive circuit, a receiving coil group, a receiving drive circuit, and a wireless communication unit.

[0087] Figure 1 This is a schematic diagram of the wireless transmission system architecture for the switching state control method of the wireless transmission system provided in the embodiments of this application, as shown below. Figure 1 As shown, the transmitting coil assembly includes A series of single-turn coils: , , ..., Each single-turn coil is connected in parallel with a transmitter switching switch on the transmitter drive circuit, and the transmitter drive circuit has a total of [number missing] [units missing]. One transmitter switching switch: , , ..., .

[0088] The receiving coil group includes A series of single-turn coils: , , ..., Each single-turn coil is connected in parallel with a receiver switching switch on the receiver drive circuit. The receiver drive circuit has a total of [number missing] [units missing]. One receiver switching switch: , , ..., .

[0089] In addition, the transmitter and receiver of the wireless power transmission system exchange information through a wireless communication unit and transmit electrical energy through magnetic field coupling.

[0090] exist Figure 1 Based on the provided wireless power transmission system architecture, Figure 2 This is a flowchart illustrating the switching state control method for a wireless power transmission system provided in an embodiment of this application, as shown below. Figure 2 As shown, the switching state control method of the wireless power transmission system includes:

[0091] S101. Select target electrical characteristic parameters based on the dynamic priority of electrical characteristic parameters of the wireless power transmission system.

[0092] Electrical characteristic parameters are used to reflect the electrical behavior of the wireless power transmission system under current operating conditions. In this embodiment, electrical characteristic parameters include, but are not limited to, the transmitter impedance. Transmitter capacitor voltage Equivalent power supply coupled from the transmitter to the receiver Equivalent resistance of the transmitter coupled to the receiver Equivalent current coupled from the transmitter to the receiver Receiver impedance Receiver capacitor voltage The impedance reflected from the receiver to the transmitter Current reflected from the receiver to the transmitter System transmission efficiency and system transmission power wait.

[0093] Dynamic prioritization reflects the importance of each electrical characteristic parameter at the current operating moment. For example, when a wireless power transmission system is in different operating conditions, electrical characteristic parameters that are more relevant to the current control requirements can be given higher priority.

[0094] The target electrical characteristic parameter is the parameter selected for priority optimization under the current operating condition. It can be the electrical characteristic parameter with the highest dynamic priority, or it can be the electrical characteristic parameter that satisfies the current control task definition. For example, in constant power supply mode, the receiver output power can be selected as the target electrical characteristic parameter, while in efficiency-priority mode, the system transmission efficiency can be selected as the target electrical characteristic parameter.

[0095] Illustratively, the dynamic priority of each electrical characteristic parameter can be determined based on the environmental state data of the wireless transmission system. In one possible implementation, before selecting the target electrical characteristic parameter, the system control unit first acquires the real-time environmental state data of the wireless transmission system. The real-time environmental state data is then normalized to obtain an environmental state vector. This environmental state vector is input into a preset mapping model to obtain the dynamic priority of each electrical characteristic parameter.

[0096] The preset mapping model can be implemented by table lookup, rule matching, or weight calculation. Since it is an existing model, the construction method of the preset mapping model will not be described in detail here.

[0097] In a specific example, if an increased receiver position offset is detected, electrical characteristic parameters related to the coupling state are prioritized. If increased load fluctuations are detected, electrical characteristic parameters related to output stability are prioritized. If increased external interference is detected, electrical characteristic parameters related to electromagnetic compatibility are prioritized.

[0098] Understandably, by dynamically updating the priority of each electrical characteristic parameter, the target electrical characteristic parameter can be switched according to the changes in system operating conditions, so that the subsequent switching state search can be carried out around the electrical indicators that need to be met at present.

[0099] S102. Set the preset size relationship between the other electrical characteristic parameters (excluding the target electrical characteristic parameter) and the corresponding preset threshold as a constraint condition.

[0100] In this step, the system control unit configures a corresponding preset threshold for each of the other electrical characteristic parameters besides the target electrical characteristic parameter. Simultaneously, it defines a preset magnitude relationship that each other electrical characteristic parameter must satisfy with its corresponding preset threshold, forming a constraint term.

[0101] Preset thresholds can be derived from system design specifications, device rated parameters, wireless power supply protocol requirements, or calibrated stable operating boundaries. For example, the transmitter input current should not exceed the rated current threshold, the transmitter coil group port voltage should not exceed the insulation withstand voltage threshold, electromagnetic compatibility related parameters should not exceed the interference limit, and the receiver output power should not be lower than the minimum power threshold required to maintain load operation.

[0102] The preset size relationship can be one or more of the following: greater than, greater than or equal to, less than, less than or equal to, or equal to, depending on the control meaning of each electrical characteristic parameter.

[0103] For example, when the target electrical characteristic parameter is transmission efficiency, constraints can be set such as the system transmission power being greater than a preset power threshold, the transmitter capacitor voltage being less than a preset withstand voltage threshold, and the current reflected from the receiver to the transmitter being less than a preset current threshold.

[0104] It is evident that by transforming all electrical characteristic parameters other than the target electrical characteristic parameter into explicit threshold relationship constraints, the multi-index control problem can be transformed into a discrete search problem with a single target parameter as the core and multiple constraints as limitations, thereby establishing a direct mapping relationship between the optimization target (target electrical characteristic parameter) and the switching state of the wireless power transmission system.

[0105] In one possible implementation, the constraints can be written as a set. or In the form of. Among them, or These represent constraint functions formed by the differences between electrical characteristic parameter values ​​and corresponding preset threshold values.

[0106] For example, when a constraint requires the equivalent current coupled from the transmitter to the receiver to be... Not greater than the preset current threshold At that time, it can be defined When a constraint requires the system to transmit power... Not lower than the preset power threshold At that time, it can be defined .

[0107] S103. Combining the constraints, the switching status of the wireless power transmission system is iteratively updated using a preset algorithm, and the values ​​of the target electrical characteristic parameters are calculated based on the updated switching status.

[0108] Explained, the switching state is an indication of whether the transmitting coil group and / or receiving coil group of a wireless power transmission system are connected to the circuit. In this embodiment, the connection of the transmitting coil group / receiving coil group to the circuit is controlled by changing the on / off state of the transmitting / receiving switching switch.

[0109] Detailed, combined Figure 1 In the provided wireless power transmission system architecture, when the transmitter / receiver switch is in the ON state, the transmitter / receiver coil group is not connected to the transmitter / receiver drive circuit. However, when the transmitter / receiver switch is in the OFF state, the transmitter / receiver coil group is connected to the transmitter / receiver drive circuit.

[0110] The preset algorithm is used to search for the switching state that meets the current control requirements under constraints. In specific implementation, the system control unit can start from the current actual switching state of the wireless power transmission system or the preset initial switching state, iteratively update the switching state, and calculate the values ​​of the corresponding target electrical characteristic parameters after the update.

[0111] It should be understood that this step is essentially equivalent to using the switching state of the wireless transmission system as a decision variable, the optimized target electrical characteristic parameter as the objective function, and further constructing a switching state control model based on the decision variables, objective function, and constraints. Iteratively updating the switching state of the wireless transmission system is equivalent to solving this switching state control model.

[0112] Specifically, the switching status of the wireless power transmission system is iteratively updated using a preset algorithm, and the process is as follows:

[0113] Step a1: Obtain the pre-built switching state combination table.

[0114] It should be noted that the switching state combination table can be pre-generated and stored by the system control unit. The table records the switching states of the transmitting coil group and / or receiving coil group in the wireless power transmission system, as well as the various switching state combinations formed therefrom.

[0115] In one possible implementation, the switching state combination table can be stored as a data structure such as an array, hash table, or sequential list. Each record corresponds to an executable switching state combination and may include a combination index, the corresponding coil position, and switching state identifier information to facilitate subsequent traversal and optimization processing of the switching state combination table.

[0116] In this embodiment, Figure 3 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 1 ,like Figure 3 As shown, when constructing the switching state combination table, it is first necessary to perform binary encoding on the switching state of the transmitting coil group and / or the receiving coil group of the wireless power transmission system to obtain the transmitting switching state encoding value and / or the receiving switching state encoding value.

[0117] Taking the transmitter coil group as an example, in specific implementation, the position sequence relationship of each coil in the transmitter coil group can be preset first, and the switching state of each coil can be set as follows: "1" indicates that it is connected to the transmitter driving circuit; "0" indicates that it is disconnected from the transmitter driving circuit.

[0118] This creates a binary string that corresponds one-to-one with each coil arrangement. Further parsing of this binary string yields the integer form of the transmitter switching status code value. The process of obtaining the receiver switching status code value is the same as that of the transmitter, and will not be described further here.

[0119] Subsequently, the switching status codes of the transmitter and / or receiver are enumerated. During the enumeration process, the values ​​can be traversed in binary permutation to generate all switching status combinations corresponding to the transmitter coil group, receiver coil group, or a combination of both.

[0120] The enumerated switching state combinations are then arranged in a preset order to construct a switching state combination table. The preset order corresponds to the coil position order.

[0121] By employing the aforementioned encoding, enumeration, and table-building methods, discrete switching states can be uniformly converted into searchable combination data. This means that the coil connection relationships are transformed into a computable and traversable combination space. Consequently, subsequent preset algorithms can directly perform searches and replacements based on this combination, improving the consistency and executability of the switching states.

[0122] Step a2: Use a preset algorithm to traverse and optimize the switching state combination table to iteratively update the switching state of the wireless power transmission system.

[0123] It should be understood that the switching state combination table provides a stable discrete search space for the preset algorithm. By traversing and optimizing this switching state combination table, the switching state of each coil in the transmitting coil group and / or receiving coil group, i.e., the decision variable, can be directly mapped to the objective function.

[0124] In detail, step a2 includes:

[0125] Step a21: Using the first algorithm, perform a global search on the switching state combination table to determine the initial switching state combination.

[0126] The first algorithm can employ a traversal search, calculating the corresponding evaluation value for each of the all switching state combinations in the switching state combination table. Then, it selects the switching state combination that satisfies the constraints and whose evaluation value best matches the current operational requirements as the initial switching state combination.

[0127] In a specific example, Figure 4 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 2 ,like Figure 4As shown, the transmitter inductance value and / or receiver inductance value under each switching state combination in the switching state combination table are initialized. Then, it is determined whether each switching state combination satisfies the constraint conditions.

[0128] Retain the switching state combinations that satisfy the constraints, and discard those that do not. Simultaneously calculate the transmitter inductance and / or receiver inductance values ​​for the retained switching state combinations.

[0129] Further confirm whether all discrete inductance values ​​have been traversed, where each switching state combination corresponds to a discrete inductance value, which includes the transmitter inductance value and / or the receiver inductance value. If not all discrete inductance values ​​have been traversed, continue traversing and searching the switching state combination table, and re-determine whether the traversed switching state combination satisfies the constraint conditions.

[0130] If all discrete inductance values ​​have been traversed, then all discrete inductance values ​​are compared, and the maximum inductance value is selected. The switching state combination corresponding to this maximum inductance value is the determined initial switching state combination.

[0131] It is worth noting that if the discrete inductance values ​​include either the transmitter inductance or the receiver inductance, then the largest inductance value can be selected from all discrete inductance values. If the discrete inductance values ​​include both the transmitter and receiver inductance, then the sum of the transmitter and receiver inductance values ​​can be maximized.

[0132] Step a22: Based on the other throwing and cutting state combinations in the throwing and cutting state combination table besides the initial throwing and cutting state combination, the second algorithm is used to perform optimization and replacement processing on the initial throwing and cutting state combination.

[0133] The second algorithm, after determining the initial switching state combination, performs optimization and replacement based on other switching state combinations in the switching state combination table. Specifically, it determines the replacement based on the differences between the initial switching state combination and the currently traversed switching state combination in terms of target electrical characteristic parameters.

[0134] If the current switching state combination is better than the initial switching state combination in terms of improvement in target electrical characteristic parameters, constraint satisfaction, or comprehensive evaluation value, then the current switching state combination replaces the initial switching state combination, and the process continues to iterate and update.

[0135] In one possible implementation, the replacement decision is made based on the value of the target electrical characteristic parameter. That is, if the value of the target electrical characteristic parameter under the current switching state combination is greater than the value of the target electrical characteristic parameter under the initial switching state combination, then the current switching state combination replaces the initial switching state combination.

[0136] Explanatoryly, the preset algorithm consists of a first algorithm and a second algorithm. The first algorithm first determines the initial combination of throwing and cutting states globally, and then the second algorithm performs replacement optimization around the initial combination of throwing and cutting states, so that the search process takes into account both overall coverage and local refinement.

[0137] After each optimization replacement is completed, the system control unit calculates the values ​​of the target electrical characteristic parameters based on the updated switching state combination. In this embodiment, after updating the switching state combination, the system control unit determines the operating parameters of the wireless power transmission system according to the switching state combination and the indicated switching states of the transmitting coil group and / or receiving coil group.

[0138] The operating parameters can be determined through table lookup, matrix operations, or by solving circuit equations. For example, the system input voltage, system resonant frequency, and other operating parameters can be determined based on the number and location of the connected coils.

[0139] After obtaining the operating parameters, the system control unit calculates the values ​​of the target electrical characteristic parameters based on the mapping relationship between the operating parameters and the target electrical characteristic parameters. This mapping relationship can be obtained through experimental calibration, theoretical modeling, or online identification, and can be stored as a parameter table, function expression, or calculation model.

[0140] It should be understood that with each update of the switching status, the operating parameters are redefined and the values ​​of the target electrical characteristic parameters are recalculated, so that the obtained target electrical characteristic parameters can synchronously reflect the current circuit status of the wireless power transmission system.

[0141] S104. Stop iterating when the value of the target electrical characteristic parameter meets the preset convergence condition, and generate the corresponding switching state control command based on the current switching state of the wireless power transmission system.

[0142] The preset convergence conditions are used to determine whether the current iteration has obtained an executable target state. In this embodiment, the preset convergence conditions include, but are not limited to: the target electrical characteristic parameters reach a predetermined range, the change amplitude of the target electrical characteristic parameters in two or more consecutive iterations is less than a preset change threshold, the current switching state is no longer updated within a preset number of iterations, or the number of iterations reaches the upper limit.

[0143] In practice, after each iteration, the system control unit reads the calculated value of the target electrical characteristic parameter and compares it with a preset convergence condition. The iteration stops once the value of the target electrical characteristic parameter meets the preset convergence condition.

[0144] Next, a specific example will be used to illustrate the iterative update process. In this example, the electrical characteristic parameters of the wireless transmission system include: the transmitter capacitor voltage. Equivalent current coupled from the transmitter to the receiver Receiver capacitor voltage Current reflected from the receiver to the transmitter System transmission efficiency and system transmission power The selected target electrical characteristic parameter is system transmission efficiency. .

[0145] Using the switching status of the wireless power transmission system as a decision variable will optimize the system transmission efficiency. As the objective function. Simultaneously, based on the transmitter capacitor voltage. Receiver capacitor voltage Equivalent current coupled from the transmitter to the receiver Current reflected from the receiver to the transmitter and system transmission power Set constraints.

[0146] Based on the decision variables, objective function, and constraints, a switching state control model is constructed. It should be noted that in this example, the objective function is set as: maximizing the system transmission efficiency. .

[0147] Explanatory, system transmission efficiency The calculation formula is as follows:

[0148]

[0149] In the formula, It represents the real part of a complex number. This represents the impedance reflected from the receiver to the transmitter. This indicates the impedance of the transmitting end. and Calculated based on the operating parameters of the wireless power transmission system:

[0150]

[0151]

[0152] In the formula, Indicates the system's resonant angular frequency. This indicates mutual inductance within the system. This indicates the inductance of the transmitting coil group. This indicates the inductance of the receiving coil assembly. Indicates the internal resistance of the transmitter. This indicates the internal resistance of the receiving end. This indicates the load resistance at the receiving end. This refers to the transmitter tuning capacitor. This indicates the tuning capacitor at the receiving end. It represents the imaginary unit.

[0153] The above , , , , , , , , These are all operating parameters of the wireless power transmission system. And for... , representing the receiver impedance, is calculated using the following formula:

[0154]

[0155] Therefore, the objective function for:

[0156]

[0157] For other electrical characteristic parameters besides transmission efficiency ( , , , , ),have:

[0158]

[0159]

[0160]

[0161]

[0162]

[0163] In the formula, This represents the system input voltage and is an operating parameter of the wireless power transmission system. This represents the equivalent power supply coupled from the transmitter to the receiver. This represents the equivalent resistance coupled from the transmitter to the receiver.

[0164] in, and The calculation formula is:

[0165]

[0166]

[0167] Based on this, the constraints are set as follows:

[0168]

[0169]

[0170]

[0171]

[0172]

[0173] In the formula, Indicates the preset power threshold. This indicates the voltage rating of the transmitting tuning capacitor. This indicates the voltage rating of the tuning capacitor at the receiving end. This indicates the current withstand value of the transmitting coil assembly. This indicates the current withstand value of the receiving coil assembly.

[0174] Next, the objective function is solved by combining the constraints, that is, the switching state of the wireless power transmission system is iteratively updated, and the system transmission efficiency is calculated based on the updated switching state. The iteration stops when the system transmission efficiency is maximized.

[0175] In this example, the specific values ​​of each parameter during the iterative update process of the switching state are shown in Table 1.

[0176] Table 1

[0177]

[0178] It is worth noting that special attention should be paid to the coupling coefficient of wireless power transmission during the iterative update process of the switching state. The coupling coefficient is an indicator describing the degree of coupling between the magnetic fields at the transmitting end and the receiving end.

[0179] Because the switching state changes, the equivalent magnetic field distribution of the transmitting coil group and / or the receiving coil group will change, and therefore the coupling coefficient will change with the switching state. In this example, the coupling coefficient changes from 0.1 to 0.3 during the iterative update of the switching state.

[0180] Changes in the coupling coefficient will further lead to changes in a series of parameters. For example, Figure 5 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 3 ,like Figure 5 As shown, this represents the system transmission efficiency. Curve showing the variation of coupling coefficient. Figure 6 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 4 ,like Figure 6 As shown, this is the inductance of the transmitting coil group. and the inductance of the receiving coil group The curve showing the change of coupling coefficient. Figure 7 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 5 ,like Figure 7 As shown, this is the voltage of the transmitting capacitor. and the voltage of the receiving end capacitor The curve showing the change of coupling coefficient. Figure 8 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 6 ,like Figure 8 As shown, this represents the equivalent current coupled from the transmitter to the receiver. and the current reflected from the receiver to the transmitter The curve showing the change of coupling coefficient. Figure 9 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 7 ,like Figure 9 As shown, the curves represent the system input power and system output power as a function of the coupling coefficient.

[0181] Next, when the value of the target electrical characteristic parameter meets the preset convergence condition, such as when the system transmission efficiency is maximized, the system control unit compares the switching state under the current iteration with the current switching state of the wireless power transmission system and generates a switching state control command.

[0182] The switching status control command includes at least: coil group identifier, switching switch identifier, switching switch action type, action sequence, and execution time information. The switching switch action type indicates whether the corresponding switching switch is turned on or off, and the action sequence is used to ensure circuit safety during the switching switch switching process.

[0183] As can be seen, the switching status control commands are used to control the wireless power transmission system to perform corresponding switching actions. Specifically, the switching status control commands include transmitter control commands and / or receiver control commands.

[0184] Figure 10 A scenario illustration of the switching state control method for a wireless power transmission system provided in this application embodiment. Figure 8 ,like Figure 10 As shown, for transmitter control commands, they are sent to the transmitter drive circuit to control the transmitter switching switch on the transmitter drive circuit to perform the corresponding switching action. For receiver control commands, they are sent to the receiver drive circuit to control the receiver switching switch on the receiver drive circuit to perform the corresponding switching action.

[0185] It should be noted that if the current switching control only involves the transmitting end, only the transmitting end control command will be issued; if it only involves the receiving end, only the receiving end control command will be issued. If both ends are involved, the transmitting end control command and the receiving end control command can be sent separately within the same control cycle.

[0186] For situations where switching state control involves both the transmitting and receiving ends, in addition to sending transmitting and receiving control commands separately within the same control cycle, it is also possible to send only the transmitting control command to the transmitting drive circuit. The receiving drive circuit receives the switching state control result from the transmitting end through the wireless communication unit, and adaptively adjusts its own switching state according to the change in the transmitting end's switching state and the resulting change in the magnetic field coupling state.

[0187] As can be seen, after the target electrical characteristic parameters meet the preset convergence conditions, this step generates a switching state control command corresponding to the current switching state, which enables the iteration result of the switching state to be directly converted into the coil group's input or output action, thereby completing the closed-loop landing from the calculation state to the physical execution state.

[0188] The switching state control method for a wireless transmission system provided in this application selects a target electrical characteristic parameter based on the dynamic priority of the electrical characteristic parameters of the wireless transmission system. The preset magnitude relationship between other electrical characteristic parameters (excluding the target electrical characteristic parameter) and their corresponding preset thresholds is set as a constraint condition. Subsequently, a pre-constructed switching state combination table is obtained, and combined with the constraint conditions, a first algorithm is used to perform a global search on the switching state combination table to determine the initial switching state combination. Further, based on other switching state combinations in the switching state combination table (excluding the initial switching state combination), a second algorithm is used to perform optimization and replacement processing on the initial switching state combination to iteratively update the switching state of the wireless transmission system. Next, the operating parameters of the wireless transmission system are calculated based on the updated switching state, and the value of the target electrical characteristic parameter is calculated based on the operating parameters. The iteration stops when the value of the target electrical characteristic parameter meets a preset convergence condition, and a corresponding switching state control command is generated based on the current switching state of the wireless transmission system. This switching state control command is used to control the wireless transmission system to perform the corresponding switching action. This application integrates dynamic priority selection, constraint construction, iterative solution of switching states, and converged instruction mapping execution into a unified control flow, which can comprehensively consider multiple electrical characteristic parameters and their interrelationships during system operation. This enables the control process of switching states to adaptively adjust to changes in system operating conditions and boundary constraints, achieving adaptability and stability of the wireless power transmission system in complex operating environments.

[0189] Figure 11This is a schematic diagram of the switching status control device of the wireless power transmission system provided in the embodiments of this application, as shown below. Figure 11 As shown, the switching status control device 11 of the wireless power transmission system includes: a selection module 111, a setting module 112, a processing module 113, and a generation module 114;

[0190] Among them, the selection module 111 is used to select target electrical characteristic parameters based on the dynamic priority of the electrical characteristic parameters of the wireless power transmission system;

[0191] Setting module 112 is used to set the preset size relationship between the electrical characteristic parameters other than the target electrical characteristic parameters and the corresponding preset thresholds in the electrical characteristic parameters as constraints.

[0192] The processing module 113 is used to iteratively update the switching status of the wireless power transmission system by combining the constraints and using a preset algorithm, and to calculate the value of the target electrical characteristic parameter based on the updated switching status; wherein, the switching status is used to indicate whether the transmitting coil group and / or receiving coil group of the wireless power transmission system are connected to the circuit.

[0193] The generation module 114 is used to stop the iteration when the value of the target electrical characteristic parameter meets the preset convergence condition, and to generate the corresponding switching state control command based on the current switching state of the wireless power transmission system; wherein, the switching state control command is used to control the wireless power transmission system to perform the corresponding switching action.

[0194] In one possible design, the processing module 113 includes:

[0195] The acquisition submodule 1131 is used to acquire a pre-built switching state combination table; wherein, the switching state combination table includes multiple switching state combinations composed of the switching states of the transmitting coil group and / or the receiving coil group in the wireless power transmission system;

[0196] The processing submodule 1132 is used to perform traversal optimization processing on the switching state combination table using a preset algorithm to iteratively update the switching state of the wireless power transmission system.

[0197] In one possible design, the processing submodule 1132 includes:

[0198] The search component is used to perform a global search on the throwing and switching state combination table using the first algorithm to determine the initial throwing and switching state combination.

[0199] The processing component is used to perform optimization and replacement processing on the initial switching state combination based on other switching state combinations besides the initial switching state combination in the switching state combination table, using a second algorithm.

[0200] The preset algorithm includes a first algorithm and a second algorithm.

[0201] In one possible design, the processing module 113 further includes:

[0202] The encoding submodule 1133 is used to perform binary encoding on the switching state of the transmitting coil group and / or the receiving coil group of the wireless power transmission system to obtain the transmitting switching state encoding value and / or the receiving switching state encoding value.

[0203] Construct submodule 1134 for:

[0204] Enumerate the switching status coding values ​​of the transmitter and / or receiver to generate multiple switching status combinations;

[0205] A switching state combination table is constructed based on multiple switching state combinations.

[0206] In one possible design, the processing module 113 further includes:

[0207] The determination submodule 1135 is used to determine the operating parameters of the wireless power transmission system based on the updated switching status;

[0208] The calculation submodule 1136 is used to calculate the values ​​of the target electrical characteristic parameters based on the operating parameters.

[0209] In one possible design, the switching status control commands include transmitter control commands and / or receiver control commands;

[0210] The wireless power transmission system switching status control device 11 further includes: a transmitting module 115, used for:

[0211] The transmitter control command is sent to the transmitter drive circuit in the wireless power transmission system to control the transmitter switching switch on the transmitter drive circuit to perform the corresponding switching action; and / or, the receiver control command is sent to the receiver drive circuit in the wireless power transmission system to control the receiver switching switch on the receiver drive circuit to perform the corresponding switching action.

[0212] In one possible design, the switching status control device 11 of the wireless power transmission system further includes: an acquisition module 116, used to acquire real-time environmental status data of the wireless power transmission system.

[0213] The setting module 112 is also used to set dynamic priorities for various electrical characteristic parameters of the wireless power transmission system based on real-time environmental status data.

[0214] The switching status control device for the wireless power transmission system provided in this application embodiment can be used to execute the switching status control method for the wireless power transmission system in any of the above embodiments. Its implementation principle and technical effect are similar, and will not be described again here.

[0215] It should be noted that the division of the various modules in the above device is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software via processing element calls; they can be fully implemented in hardware; or some modules can be implemented in software via processing element calls, while others are implemented in hardware. Additionally, these modules can be fully or partially integrated together, or implemented independently. The processing element here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each of the above modules can be completed through the integrated logic circuits in the hardware of the processor element or through software instructions.

[0216] Figure 12 A schematic diagram of the structure of the electronic device provided in this application. Figure 12 As shown, the electronic device 12 provided in this embodiment includes at least one processor 121 and a memory 122. Optionally, the electronic device 12 further includes a communication component 123. The processor 121, the memory 122, and the communication component 123 are connected via a bus 124.

[0217] In the specific implementation process, at least one processor 121 executes computer execution instructions stored in memory 122, causing at least one processor 121 to execute the above-described wireless power transmission system switching state control method.

[0218] The specific implementation process of processor 121 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0219] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0220] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0221] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0222] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method for controlling the switching state of a wireless power transmission system.

[0223] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method for controlling the switching state of a wireless power transmission system.

[0224] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0225] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an application-specific integrated circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0226] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0227] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0228] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0229] If a function is implemented as a software functional unit and sold or used as an independent product, it 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 a 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 includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of 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.

[0230] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0231] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope.

Claims

1. A method for controlling the switching state of a wireless power transmission system, characterized in that, include: Target electrical characteristic parameters are selected based on the dynamic priority of electrical characteristic parameters of the wireless power transmission system. The preset size relationship between the other electrical characteristic parameters (excluding the target electrical characteristic parameter) and their corresponding preset thresholds is set as a constraint condition. In accordance with the aforementioned constraints, a preset algorithm is used to iteratively update the switching status of the wireless power transmission system, and the value of the target electrical characteristic parameter is calculated based on the updated switching status; wherein, the switching status is used to indicate whether the transmitting coil group and / or receiving coil group of the wireless power transmission system are connected to the circuit; The iteration stops when the value of the target electrical characteristic parameter meets the preset convergence condition, and a corresponding switching state control command is generated based on the current switching state of the wireless power transmission system; wherein, the switching state control command is used to control the wireless power transmission system to perform the corresponding switching action.

2. The method according to claim 1, characterized in that, The switching status of the wireless power transmission system is iteratively updated using a preset algorithm, including: Obtain a pre-constructed switching state combination table; wherein, the switching state combination table includes multiple switching state combinations composed of the switching states of the transmitting coil group and / or the receiving coil group in the wireless power transmission system; A preset algorithm is used to traverse and optimize the switching state combination table in order to iteratively update the switching state of the wireless power transmission system.

3. The method according to claim 2, characterized in that, The switching state combination table is traversed and optimized using a preset algorithm, including: The first algorithm is used to perform a global search on the throwing and switching state combination table to determine the initial throwing and switching state combination; Based on the other throwing and cutting state combinations in the throwing and cutting state combination table besides the initial throwing and cutting state combination, the second algorithm is used to perform optimization and replacement processing on the initial throwing and cutting state combination. The preset algorithm includes the first algorithm and the second algorithm.

4. The method according to claim 2, characterized in that, Before obtaining the pre-built combination table of switching states, the method further includes: The switching states of the transmitting coil group and / or the receiving coil group of the wireless power transmission system are binary encoded to obtain the transmitting switching state encoding value and / or the receiving switching state encoding value. Enumerate the switching status coding values ​​of the transmitting end and / or the switching status coding values ​​of the receiving end to generate multiple switching status combinations; Based on the various combinations of switching states, a switching state combination table is constructed.

5. The method according to claim 1, characterized in that, The values ​​of the target electrical characteristic parameters are calculated based on the updated switching state, including: Based on the updated switching status, the operating parameters of the wireless power transmission system are determined; Based on the operating parameters, the values ​​of the target electrical characteristic parameters are calculated.

6. The method according to any one of claims 1 to 5, characterized in that, The switching status control command includes a transmitter control command and / or a receiver control command; After generating the corresponding switching state control command, the method further includes: The transmitter control command is sent to the transmitter drive circuit in the wireless power transmission system to control the transmitter switching switch on the transmitter drive circuit to perform the corresponding switching action; and / or, the receiver control command is sent to the receiver drive circuit in the wireless power transmission system to control the receiver switching switch on the receiver drive circuit to perform the corresponding switching action.

7. The method according to any one of claims 1 to 5, characterized in that, Before selecting the target electrical characteristic parameter based on the dynamic priority of the electrical characteristic parameters of the wireless power transmission system, the method further includes: Obtain real-time environmental status data of the wireless power transmission system; Based on the real-time environmental status data, dynamic priorities are set for each electrical characteristic parameter of the wireless power transmission system.

8. A switching status control device for a wireless power transmission system, characterized in that, include: The selection module is used to select target electrical characteristic parameters based on the dynamic priority of the electrical characteristic parameters of the wireless power transmission system. The setting module is used to set the preset size relationship between the electrical characteristic parameters other than the target electrical characteristic parameter and the corresponding preset threshold as a constraint condition; The processing module is used to iteratively update the switching status of the wireless power transmission system using a preset algorithm in combination with the constraints, and to calculate the value of the target electrical characteristic parameter based on the updated switching status; wherein, the switching status is used to indicate whether the transmitting coil group and / or receiving coil group of the wireless power transmission system are connected to the circuit; The generation module is used to stop iterating when the value of the target electrical characteristic parameter meets the preset convergence condition, and to generate a corresponding switching state control instruction based on the current switching state of the wireless power transmission system; wherein, the switching state control instruction is used to control the wireless power transmission system to perform the corresponding switching action.

9. An electronic device, characterized in that, include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the switching state control method of the wireless power transmission system as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the switching state control method of the wireless power transmission system as described in any one of claims 1 to 7.

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