A highly robust wireless power transmission system with four reconstruction modes

Abstract

The present invention relates to the field of wireless power transmission technology, and discloses a highly anti-offset wireless power transmission system with four reconstruction modes, comprising a reconfigurable inverter module, a primary-side compensation network module, a secondary-side compensation network module, and a rectifier filter circuit module; through the coordination of compensation topology reconstruction and parameter optimization design, constant power output within a coupling coefficient variation range of about 620% is achieved, and the secondary-side loop only uses a single capacitor series compensation. The system structure is more compact, simple, and lightweight, and is more in line with actual application requirements. It can achieve constant power output within a coupling coefficient variation range of about 620% at a fixed operating frequency and without the need for additional control hardware or complex mechanical adjustments, only through simple switch tube control.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless power transmission, and more particularly to a highly anti-deviation wireless power transmission system with four reconstruction modes. Background Art

[0002] Inductive Power Transfer (IPT) technology is based on Faraday's law of electromagnetic induction and the principle of resonant coupling. A high-frequency inverter (typically operating in the kHz-MHz frequency band) drives a primary transmitting coil to generate an alternating magnetic field, which in turn induces a current in a secondary receiving coil, enabling contactless transmission of electrical energy from the power source to the load. Compared to traditional conductive power supply methods, this technology offers significant advantages, including high power supply security, strong environmental adaptability, and low maintenance costs.

[0003] However, as application scenarios evolve toward greater complexity and dynamism, the system's lack of adaptability to spatial degrees of freedom is becoming increasingly prominent. Specifically, when the primary and secondary coils experience lateral displacement, axial spacing changes, or pitch angle deflection due to device displacement (such as AGV path deviation), mechanical deformation (such as tissue compression of an implantable device), or environmental disturbances (such as ocean current impact on an underwater probe), the inter-coil coupling coefficient (k value) exhibits nonlinear attenuation characteristics, leading to a sharp decrease or even interruption in the system's power transmission capacity. More seriously, drastic fluctuations in the coupling parameters can disrupt the impedance matching conditions of the resonant network, leading to a series of thorny issues such as electrical parameter mismatch, degraded system stability, and increased control complexity.

[0004] Current mainstream solutions still have significant limitations. For example, dynamic frequency tracking technologies (such as phase-locked loop (PLL) control) can partially compensate for resonant frequency deviation, but wide-range frequency modulation can degrade electromagnetic compatibility (EMI) and struggle to meet the strict frequency band limits (100-205kHz) of international standards such as Qi. Multi-coil array switching technologies expand the effective coupling area through distributed coil redundancy, but the coil reuse logic is complex and system efficiency is significantly reduced due to electromagnetic coupling cross-interference. Adaptive impedance matching networks (such as GaN-based tunable capacitor arrays) can achieve microsecond response speeds, but are currently only suitable for low-power scenarios below 100W due to the voltage and power rating of semiconductor devices. Mechanical servo positioning mechanisms achieve automatic coil alignment through visual or magnetic encoder feedback, but the introduction of additional moving parts increases the system size by over 30% and makes them incapable of adapting to high-frequency dynamic excursions (such as wireless power supply for high-speed maglev trains). This "efficiency-freedom-cost" dilemma severely restricts the application of IPT technology in emerging scenarios such as wireless charging platforms for drones and mobile power supply for flexible production lines.

[0005] This demonstrates how, without requiring additional control hardware or complex mechanical adjustments, compensatory topology reconstruction and parameter optimization can be used to achieve constant power output over a coupling coefficient range exceeding 620%. This paper proposes a highly offset-resistant wireless power transmission system with four reconstruction modes, achieving constant power output over a coupling coefficient range of approximately 620%. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a highly anti-skew wireless power transmission system with four reconstruction modes to solve the problems existing in the above-mentioned background technology.

[0007] The present invention provides the following technical solutions: a highly anti-offset wireless power transmission system with four reconstruction modes, comprising a reconfigurable inverter module, a primary side compensation network module, a secondary side compensation network module, and a rectifier filter circuit module;

[0008] The reconfigurable inverter module includes a switch tube , switch tube , switch tube , switch tube , switch tube And the switch tube ;

[0009] The primary compensation network module includes a primary branch compensation capacitor , the first compensation capacitor on the primary side , the second compensation capacitor on the primary side , the first primary transmitting coil And the primary side second transmitting coil ;

[0010] The secondary side compensation network module includes a secondary side compensation capacitor With the secondary receiving coil ;

[0011] The rectifier filter circuit module consists of a diode ~ Consists of a full-bridge rectifier and an electrolytic capacitor Parallel composition;

[0012] Switching tube With switch tube Series connection, switch tube With switch tube Series connection, switch tube With switch tube Series connection, switch tube With switch tube Series branch, switch tube With switch tube Series branch, switch tube With switch tube The series branches are connected in parallel in sequence;

[0013] Primary branch compensation capacitor One end of the switch tube One end of the switch tube One end of the primary branch is connected to the compensation capacitor The other end of the primary first transmitting coil One end of the primary side of the second transmitting coil One end is connected;

[0014] Primary side first compensation capacitor One end of the switch tube One end of the switch tube One end of the primary side is connected to the first compensation capacitor The other end of the primary first transmitting coil The other end is connected;

[0015] Primary side second compensation capacitor One end of the switch tube One end of the switch tube One end of the primary side is connected to the second compensation capacitor The other end of the primary side second transmitting coil The other end is connected;

[0016] Secondary side compensation capacitor One end of the secondary receiving coil One end of the secondary side compensation capacitor is connected to The other end is connected to an input end of the rectifier filter circuit; the secondary receiving coil The other end is connected to the other input end of the rectifier and filter circuit;

[0017] The primary branch compensation capacitor The value of is expressed as: ; The first compensation capacitor on the primary side The value of is expressed as: The second compensation capacitor of the primary side The value of is expressed as: ; The secondary side compensation capacitor The value of is expressed as: The cross coupling The value of is expressed as: ; The working coupling and The relationship between the values ​​of is expressed as: ;

[0018] in, Indicates the primary branch compensation capacitor The value of Indicates the first compensation capacitor on the primary side The value of Indicates the system operating angular frequency; Indicates the second compensation capacitor on the primary side The value of Indicates the coupling change multiple; Indicates the secondary side compensation capacitor The value of Represents cross coupling The value of Indicates working coupling The value of Indicates working coupling The value of

[0019] represents the first detuning rate; ;

[0020] represents the second detuning rate; ;

[0021] in, Indicates the primary first transmitting coil The self-inductance value, Indicates the primary side second transmitting coil The self-inductance value; ;in, Represents the equivalent nominal impedance of the primary compensation network; represents the first extreme coupling coefficient, Indicates the secondary receiving coil The self-inductance value; Indicates the resistance value of the battery load.

[0022] Preferably, the primary first transmitting coil The second transmitting coil with the primary side The cross coupling between , the primary first transmitting coil With the secondary side receiving coil The working coupling between , the primary second transmitting coil With the secondary side receiving coil The working coupling between .

[0023] Preferably, the system comprises a first reconstruction modality, a second reconstruction modality, a third reconstruction modality and a fourth reconstruction modality.

[0024] Preferably, when in the first reconstruction mode, the switch tube , switch tube And the switch tube In the same on-state or off-state; the switch tube , switch tube And the switch tube In the same on-state or off-state; the switch tube , switch tube , switch tube With switch tube , switch tube , switch tube In the alternating conduction state, the switch tube , switch tube , switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is:

[0025] ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Represents the equivalent nominal impedance of the primary compensation network.

[0026] Preferably, in the second reconstruction mode, the switch tube With switch tube Constant off, switch tube With switch tube In the same on-state or the same off-state, the switch tube With switch tube In the same on-state or the same off-state, the switch tube , switch tube With switch tube , switch tube In the alternating conduction state, the switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is:

[0027] ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Indicates the coupling change multiple; Represents the equivalent nominal impedance of the primary compensation network.

[0028] Preferably, when in the third reconstruction mode, the switch tube With switch tube Constant off, switch tube With switch tube In the same on-state or the same off-state, the switch tube With switch tube In the same on-state or the same off-state, the switch tube , switch tube With switch tube , switch tube In the alternating conduction state, the switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is:

[0029] ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Indicates the coupling change multiple; Represents the equivalent nominal impedance of the primary compensation network.

[0030] Preferably, when in the fourth reconstruction mode, the switch tube With switch tube Constant off, switch tube With switch tube In the same on-state or off-state, the switch tube With switch tube In the same on-state or off-state, the switch tube , switch tube With switch tube , switch tube In the alternating conduction state, the switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is:

[0031] ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Indicates the coupling change multiple; Represents the equivalent nominal impedance of the primary compensation network.

[0032] Preferably, the system satisfies the volatility The volatility is the system output power fluctuation rate, which is expressed as follows:

[0033] ;in, Indicates the maximum power allowed to be transmitted; Indicates the minimum power allowed for transmission; ; ; Indicates rated output power;

[0034] in, Represents the volatility threshold.

[0035] The technical effects and advantages of the present invention are as follows:

[0036] 1. The present invention can present four reconstruction modes through simple switch tube control, and each mode corresponds to a smooth output power-coupling coefficient output range. At the same time, only four compensation capacitors are used. The system structure is more compact, simple, and lightweight, which is more in line with the actual engineering application requirements.

[0037] 2. The present invention can achieve constant power output within a coupling coefficient variation range of about 620% at a fixed operating frequency without the need for additional control hardware or complex mechanical adjustments; at the same time, it can avoid the risk of inverter overcurrent, and the switch tube always maintains a zero-voltage conduction state.

[0038] 3. The calculation of all system parameters involved in the present invention does not require any additional loop iteration or optimization algorithm. It only needs to give technical indicators to directly perform formula assignment calculations, thereby realizing rapid determination of system parameters and simplifying the process of system parameter calculation. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of the main circuit architecture of the highly anti-skew wireless power transmission system with four reconstruction modes of the present invention.

[0040] Figure 2 FIG. 4 is a schematic diagram of an equivalent circuit of the first reconstruction mode in an embodiment of the present invention.

[0041] Figure 3 FIG. 4 is a schematic diagram of an equivalent circuit of the second reconstruction mode in an embodiment of the present invention.

[0042] Figure 4 FIG. 4 is a schematic diagram of an equivalent circuit of the third reconstruction mode in an embodiment of the present invention.

[0043] Figure 5 FIG. 4 is a schematic diagram of an equivalent circuit of the fourth reconstruction mode in an embodiment of the present invention.

[0044] Figure 6 Graph showing theoretical calculation of output power versus coupling coefficient in an embodiment of the present invention. DETAILED DESCRIPTION

[0045] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The present invention involves a highly anti-skew wireless power transmission system with four reconstruction modes and is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] like Figure 1 As shown, the present invention provides a strong anti-offset wireless power transmission system with four reconstruction modes, including a reconfigurable inverter module, a primary side compensation network module, a secondary side compensation network module and a rectifier filter circuit module;

[0047] The reconfigurable inverter module includes a switch tube , switch tube , switch tube , switch tube , switch tube And the switch tube ;

[0048] The primary compensation network module includes a primary branch compensation capacitor , the first compensation capacitor on the primary side , the second compensation capacitor on the primary side , the first primary transmitting coil And the primary side second transmitting coil ;

[0049] The secondary side compensation network module includes a secondary side compensation capacitor With the secondary receiving coil ;

[0050] The rectifier filter circuit module consists of a diode ~ Consists of a full-bridge rectifier and an electrolytic capacitor Parallel composition.

[0051] In this embodiment, it should be specifically explained that the primary first transmitting coil The second transmitting coil with the primary side The cross coupling between , the primary first transmitting coil With the secondary side receiving coil The working coupling between , the primary second transmitting coil With the secondary side receiving coil The working coupling between .

[0052] In this embodiment, it should be specifically explained that the primary branch compensation capacitor The value of is expressed as: ; The first compensation capacitor on the primary side The value of is expressed as: The second compensation capacitor of the primary side The value of is expressed as: ; The secondary side compensation capacitor The value of is expressed as: The cross coupling The value of is expressed as: ; The working coupling and The relationship between the values ​​of is expressed as: ;

[0053] in, Indicates the primary branch compensation capacitor The value of Indicates the first compensation capacitor on the primary side The value of Indicates the system operating angular frequency; Indicates the second compensation capacitor on the primary side The value of Indicates the coupling change multiple; Indicates the secondary side compensation capacitor The value of Represents cross coupling The value of Indicates working coupling The value of Indicates working coupling The value of

[0054] represents the first detuning rate; ;

[0055] represents the second detuning rate; ;

[0056] in, Indicates the primary first transmitting coil The self-inductance value, Indicates the primary side second transmitting coil The self-inductance value; ;in, Represents the equivalent nominal impedance of the primary compensation network; represents the first extreme coupling coefficient, Indicates the secondary receiving coil The self-inductance value; Indicates the resistance value of the battery load.

[0057] like Figures 2 to 5 As shown in FIG, the strong anti-offset wireless power transmission system with four reconstruction modes includes a first reconstruction mode, a second reconstruction mode, a third reconstruction mode and a fourth reconstruction mode; Represents the equivalent AC resistance before the rectifier filter circuit, that is ; 、 、 、 represent the AC input voltages in the first, second, third, and fourth reconstruction modes, respectively;

[0058] When in the first reconstruction mode, the switch tube , switch tube And the switch tube In the same on-state or off-state; the switch tube , switch tube And the switch tube In the same on-state or off-state; the switch tube , switch tube , switch tube With switch tube , switch tube , switch tube It is in an alternating conduction state, and its corresponding equivalent circuit is as follows Figure 2 As shown; Among them, the switch tube , switch tube , switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is:

[0059] ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Represents the equivalent nominal impedance of the primary compensation network;

[0060] In the second reconstruction mode, the switch tube With switch tube Constant off, switch tube With switch tube In the same on-state or the same off-state, the switch tube With switch tube In the same on-state or the same off-state, the switch tube , switch tube With switch tube , switch tube It is in an alternating conduction state, and its corresponding equivalent circuit is as follows Figure 3 As shown; Among them, the switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is:

[0061] ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Indicates the coupling change multiple; Represents the equivalent nominal impedance of the primary compensation network;

[0062] When in the third reconstruction mode, the switch tube With switch tube Constant off, switch tube With switch tube In the same on-state or the same off-state, the switch tube With switch tube In the same on-state or the same off-state, the switch tube , switch tube With switch tube , switch tube It is in an alternating conduction state, and its corresponding equivalent circuit is as follows Figure 4 As shown, the switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is:

[0063] ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Indicates the coupling change multiple; Represents the equivalent nominal impedance of the primary compensation network;

[0064] When in the fourth reconstruction mode, the switch tube With switch tube Constant off, switch tube With switch tube In the same on-state or off-state, the switch tube With switch tube In the same on-state or off-state, the switch tube , switch tube With switch tube , switch tube It is in an alternating conduction state, where its corresponding equivalent circuit is as follows Figure 5 As shown, the switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is:

[0065] ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Indicates the coupling change multiple; Represents the equivalent nominal impedance of the primary compensation network.

[0066] As shown in Table 1, if the technical indicators are given, including 、 、 、 、 、 、 、 as well as , Indicates the system operating frequency, ;

[0067] Table 1 Technical indicators

[0068]

[0069] Design relevant parameters based on the technical indicators in Table 1, including the primary branch compensation capacitor , the first compensation capacitor on the primary side , the second compensation capacitor on the primary side , secondary side compensation capacitor , cross coupling , the conduction angle of the first reconstructed mode , the conduction angle of the second reconstructed mode , the conduction angle of the third reconstructed mode and the conduction angle of the fourth reconstructed mode ;Specific details are shown in Table 2:

[0070] Table 2 Related design parameters

[0071]

[0072] The Mathematica software was used to obtain the following Figure 6 The system output power shown With coupling coefficient The theoretical calculation diagram of the change curve ensures constant power output within the coupling coefficient change range of about 620%, that is, the fluctuation rate ,in, Indicates the volatility threshold, which can be set by those skilled in the art. In combination with the actual engineering application requirements, this embodiment selects .

[0073] In this embodiment, it should be specifically explained that the volatility is the system output power fluctuation rate, which is expressed as follows:

[0074] ;in, Indicates the maximum power allowed to be transmitted; Indicates the minimum power allowed for transmission; ; ; To prevent the battery from overvoltage or overcurrent, the rated output power Designed to allow the maximum power to be transmitted Place, that is .

[0075] In this embodiment, it should be specifically explained that, in combination with Figure 6 As shown, if the required transmission system output power fluctuation rate is , when in the first reconstruction mode, it is represented by the orange line on the far left of the figure. At this time, the coupling coefficient It can vary between 0.1434 and 0.2260. When in the second reconstruction mode, it is represented by the second yellow line from left to right in the figure. At this time, the coupling coefficient It can vary between 0.2260 and 0.3561. When in the third reconstruction mode, it is represented by the third green line from left to right in the figure. At this time, the coupling coefficient It can vary between 0.3561 and 0.5613. When in the fourth reconstruction mode, it is represented by the rightmost blue line in the figure. At this time, the coupling coefficient It can vary between 0.5613 and 0.8846. The purple line at the top of the figure indicates the maximum power allowed to be transmitted. The brown line at the bottom indicates the minimum power allowed to be transmitted. ;

[0076] When the coupling coefficient When the coupling coefficient changes between 0.1434 and 0.8846, that is, the coupling coefficient changes by about 620%, the output power range is from 904.76 W to 1000 W, and the output power fluctuation rate always meets Therefore, the present invention can achieve a constant power output within a coupling coefficient variation range of about 620%, that is, a fluctuation rate .

[0077] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0078] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A highly robust wireless power transmission system with four reconstruction modes, characterized by: It includes a reconfigurable inverter module, a primary side compensation network module, a secondary side compensation network module and a rectifier filter circuit module; The reconfigurable inverter module includes a switch tube , switch tube , switch tube , switch tube , switch tube And the switch tube ; The primary compensation network module includes a primary branch compensation capacitor , the first compensation capacitor on the primary side , the second compensation capacitor on the primary side , the first primary transmitting coil And the primary side second transmitting coil ; The secondary side compensation network module includes a secondary side compensation capacitor With the secondary receiving coil ; The rectifier and filter circuit module consists of a diode ~ Consists of a full-bridge rectifier and an electrolytic capacitor Parallel composition; Switching tube With switch tube Series connection, switch tube With switch tube Series connection, switch tube With switch tube Series connection, switch tube With switch tube Series branch, switch tube With switch tube Series branch, switch tube With switch tube The series branches are connected in parallel in sequence; Primary branch compensation capacitor One end of the switch tube One end of the switch tube One end of the primary branch is connected to the compensation capacitor The other end of the primary first transmitting coil One end of the primary side of the second transmitting coil One end is connected; Primary side first compensation capacitor One end of the switch tube One end of the switch tube One end of the primary side is connected to the first compensation capacitor The other end of the primary first transmitting coil The other end is connected; Primary side second compensation capacitor One end of the switch tube One end of the switch tube One end of the primary side is connected to the second compensation capacitor The other end of the primary side second transmitting coil The other end is connected; Secondary side compensation capacitor One end of the secondary receiving coil One end of the secondary side compensation capacitor is connected to The other end is connected to an input end of the rectifier filter circuit; the secondary receiving coil The other end is connected to the other input end of the rectifier and filter circuit; The primary branch compensation capacitor The value of is expressed as: ; The first compensation capacitor on the primary side The value of is expressed as: The second compensation capacitor of the primary side The value of is expressed as: ; The secondary side compensation capacitor The value of is expressed as: ; Cross coupling The value of is expressed as: ;Working coupling and The relationship between the values ​​of is expressed as: ; in, Indicates the primary branch compensation capacitor The value of Indicates the first compensation capacitor on the primary side The value of Indicates the system operating angular frequency; Indicates the second compensation capacitor on the primary side The value of Indicates the coupling change multiple; Indicates the secondary side compensation capacitor The value of Represents cross coupling The value of Indicates working coupling The value of Indicates working coupling The value of represents the first detuning rate; ; represents the second detuning rate; ; in, Indicates the primary first transmitting coil The self-inductance value, Indicates the primary side second transmitting coil The self-inductance value; ;in, Represents the equivalent nominal impedance of the primary compensation network; represents the first extreme coupling coefficient, Indicates the secondary receiving coil The self-inductance value; Indicates the resistance value of the battery load.

2. The highly resistant wireless power transmission system with four reconstruction modes according to claim 1, characterized in that: The primary first transmitting coil The second transmitting coil with the primary side The cross coupling between , the primary first transmitting coil With the secondary side receiving coil The working coupling between , the primary second transmitting coil With the secondary side receiving coil The working coupling between .

3. The highly resistant wireless power transmission system with four reconstruction modes according to claim 2, characterized in that: The system includes a first reconstruction modality, a second reconstruction modality, a third reconstruction modality, and a fourth reconstruction modality.

4. The highly resistant wireless power transmission system with four reconstruction modes according to claim 3, characterized in that: When in the first reconstruction mode, the switch tube , switch tube And the switch tube In the same on-state or off-state; the switch tube , switch tube And the switch tube In the same on-state or off-state; the switch tube , switch tube , switch tube With switch tube , switch tube , switch tube In the alternating conduction state, the switch tube , switch tube , switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is: ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Represents the equivalent nominal impedance of the primary compensation network.

5. The highly resistant wireless power transmission system with four reconstruction modes according to claim 4, characterized in that: In the second reconstruction mode, the switch tube With switch tube Constant off, switch tube With switch tube In the same on-state or the same off-state, the switch tube With switch tube In the same on-state or the same off-state, the switch tube , switch tube With switch tube , switch tube In the alternating conduction state, the switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is: ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Indicates the coupling change multiple; Represents the equivalent nominal impedance of the primary compensation network.

6. The highly resistant wireless power transmission system with four reconstruction modes according to claim 5, characterized in that: When in the third reconstruction mode, the switch tube With switch tube Constant off, switch tube With switch tube In the same on-state or the same off-state, the switch tube With switch tube In the same on-state or the same off-state, the switch tube , switch tube With switch tube , switch tube In the alternating conduction state, the switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is: ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Indicates the coupling change multiple; Represents the equivalent nominal impedance of the primary compensation network.

7. The highly resistant wireless power transmission system with four reconstruction modes according to claim 6, characterized in that: When in the fourth reconstruction mode, the switch tube With switch tube Constant off, switch tube With switch tube In the same on-state or off-state, the switch tube With switch tube In the same on-state or off-state, the switch tube , switch tube With switch tube , switch tube In the alternating conduction state, the switch tube , switch tube , switch tube , switch tube The conduction angle when conducting is , the formula is: ;in, Indicates the voltage value of the DC voltage source; Indicates rated output power; Indicates the system operating angular frequency; Indicates the coupling change multiple; Represents the equivalent nominal impedance of the primary compensation network.

8. The highly resistant wireless power transmission system with four reconstruction modes according to claim 7, characterized in that: The system satisfies the volatility The volatility is the system output power fluctuation rate, which is expressed as follows: ;in, Indicates the maximum power allowed to be transmitted; Indicates the minimum power allowed for transmission; ; ; Indicates rated output power; in, Represents the volatility threshold.

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