Dynamic wireless charging energy transmitter one-to-many control system and control method thereof

Abstract

The present invention relates to the field of dynamic wireless energy transmission technology, and more specifically to a dynamic wireless charging energy transmitter with multiple control systems and a control method thereof. N energy transmitters and one energy receiver are set up, and M controllers are used. The N energy transmitters can be divided into M groups according to the number of controllers. i The signal input end of the controller M is connected to the signal output end of the i-th, i+M, ..., (n-1)M+i position detection modules respectively. i The controller controls the energy transmitter by connecting the control signal output terminals to the i-th, i+M-th, ..., (n-1)M+i-th soft-start circuits and the i-th, i+M-th, ..., (n-1)M+i-th main power line relays, respectively. This allows the energy transmitter at the vehicle's location to couple with the coil at the energy receiver, enabling charging of the electric vehicle. Energy transmitters at other locations are deactivated.

Description

Technical Field

[0001] The present invention relates to the technical field of dynamic wireless energy transmission, and in particular to a dynamic wireless charging energy transmitter one-band multiple control system and a control method thereof. Background Art

[0002] Global energy consumption surveys show that transportation is a significant component of energy consumption and a major source of exhaust emissions. Consequently, new green transportation options are emerging. New energy electric vehicles, in particular, are highly valued for their zero-emission, pollution-free, low-cost, and energy-efficient features. Dynamic wireless energy transmission technology, based on electromagnetic induction, is a novel battery charging technology that can effectively improve the range and charging efficiency of electric vehicles.

[0003] Wireless charging technology based on electromagnetic induction enables power load devices to be connected to the power grid in a contactless manner, solving the interface limitations faced by traditional charging technologies and avoiding safety issues caused by friction, corrosion, and poor contact at the conductor connection. It is particularly suitable for use in underwater and flammable and explosive environments. The advantage of dynamic wireless charging over ordinary static wireless charging is that it allows electric vehicles to charge while driving, achieving a series of significant advantages such as convenience, speed, and time saving.

[0004] Current research on dynamic wireless charging often addresses the coil switching issue by decoupling adjacent transmitting coils. A position detector and a control box are then used to control a transmitting coil to transfer energy to a receiving coil. This coil switching control method not only requires the entire system to utilize a large number of controllers, resonant inductors, compensation capacitors, and relays, but also complicates the system, increases costs, and reduces reliability. Summary of the Invention

[0005] The purpose of the present invention is to address the defects of the existing technology and provide a dynamic wireless charging energy transmitter with multiple control systems and control methods, which can reduce the number of energy receiving ends and realize automatic switching between a single inverter with multiple coils. The system can maintain high efficiency, thereby simplifying control and improving system stability. The system structure is simple, the cost is low, and the reliability is high.

[0006] The present invention provides a dynamic wireless charging energy transmitter with multiple control systems, including N energy transmitters and an energy receiving terminal arranged on a vehicle. The energy transmitter includes primary transmitting coils uniformly laid under the road surface along the continuation direction of the road, and also includes M controllers and N position detection modules. A position detection module is arranged in front of each primary transmitting coil. The energy transmitter also includes a soft start circuit, an inverter circuit, a primary resonant circuit and a main power line relay connected in series between the DC bus and the primary transmitting coil. The controller M i The signal input end of the controller M is connected to the signal output end of the i-th, i+M, ..., (n-1)M+i position detection modules respectively. i The control signal output terminals are connected to the i-th, i+M, ..., (n-1)M+i-th soft start circuits and the i-th, i+M, ..., (n-1)M+i-th main power line relays, respectively, where i=1, 2, ..., M;

[0007] Wherein, n is the number of energy transmitters included in each group after the N energy transmitters are divided into M groups according to the number of controllers.

[0008] Preferably, the number of M is determined by the formula M·w+(M-1)·x≤L≤M·w+M·x;

[0009] Wherein, w is the width of the primary transmitting coil, x is the distance between the two primary transmitting coils, L is the length of the electric vehicle, and M is an integer.

[0010] Preferably, when N cannot be divided by M, the remaining energy transmitters and position detection modules are connected to the respective controllers in a sequential manner, including:

[0011] Starting from the first controller, the signal output end of the remaining first position detection module is connected to the signal input end of the first controller, and the control signal input end of the soft start circuit and the main power line relay of the remaining first energy transmitter is connected to the control signal output end of the first controller;

[0012] Continue in sequence to ensure that all remaining energy transmitters and position detection modules are connected to each controller respectively.

[0013] More preferably, the system further includes an input filter capacitor disposed between the soft start circuit and the inverter circuit.

[0014] Preferably, the soft start circuit includes a line relay, a soft start relay and a soft start resistor connected in series with the soft start relay, and the control signal input ends of the line relay and the soft start relay are both connected to the control signal output end of the controller.

[0015] Preferably, the N primary transmitting coils are numbered 1, 2, ..., i, ..., N, and their inductance values ​​are L1, L2, ..., L i ,…,L N , the compensation capacitance values ​​corresponding to the inductors are C1, C2, ..., C i ,…,C N ;

[0016] The primary resonant circuit adopts an LCC resonant network system structure, and the inductance values ​​of the resonant inductors in the primary resonant circuit are L f1 , L f2 ,…,L fi ,…,L fN , the compensation capacitance values ​​corresponding to the resonant inductance are C f1 、C f2 ,…,C fi ,…,C fN ;

[0017] The inductance value of the primary transmitting coil, the compensation capacitance value corresponding to the inductance, the resonant inductance value of the primary resonant circuit, and the compensation capacitance value corresponding to the resonant inductance are calculated by the following formulas:

[0018]

[0019] Where ω0 is the resonant frequency of the system.

[0020] Preferably, the energy receiving end includes a secondary receiving coil and a secondary resonant circuit, a secondary rectifier circuit and a DC / DC conversion circuit which are sequentially connected in series between the secondary receiving coil and the load.

[0021] Preferably, the inductance of the secondary receiving coil is L T , the compensation capacitance value corresponding to the inductor is C T The secondary resonant circuit adopts an LCC resonant network system structure, and the inductance value of the resonant inductor of the secondary resonant circuit is L fT , the compensation capacitance value of its resonant inductance is C fT ;

[0022] The inductance value of the secondary receiving coil, the compensation capacitance value corresponding to the inductance, the resonant inductance value of the secondary resonant circuit, and the compensation capacitance value corresponding to the resonant inductance are calculated by the following formulas:

[0023]

[0024] Where ω0 is the resonant frequency of the system.

[0025] Preferably, the soft start circuits, inverter circuits, and primary resonant circuits of the M controllers and the N energy transmitting ends are all arranged in one control cabinet.

[0026] The present invention provides a control method for a dynamic wireless charging energy transmitter with multiple control systems, comprising: when receiving a signal sent by a certain position detection module, a controller controls the soft start circuit and main power line relay of the corresponding energy transmitter to turn on, and controls the soft start circuit and main power line relay of the previous energy transmitter to turn off.

[0027] The beneficial effects of the present invention are:

[0028] 1. Set up N energy transmitters and one energy receiver, and use M controllers. The N energy transmitters can be divided into M groups according to the number of controllers. i The signal input end of the controller M is connected to the signal output end of the i-th, i+M, ..., (n-1)M+i position detection modules respectively. i The controller controls the energy transmitter by connecting the control signal output terminals to the i-th, i+M, ..., (n-1)M+i-th soft start circuits and the i-th, i+M, ..., (n-1)M+i-th main power line relays, respectively. The energy transmitter at the vehicle's location is coupled to the coil at the energy receiver to charge the electric vehicle, while the energy transmitters at other locations stop working. One receiver corresponds to multiple transmitters, reducing the no-load energy loss of the dynamic wireless system, improving system efficiency, and lowering system costs. Furthermore, after the energy transmitters are grouped, each controller controls one energy transmitter in a different group, ensuring sufficient control intervals and avoiding conflicts caused by simultaneous operation of the controller's control objects. This allows the minimum number of controllers to control the maximum number of energy transmitters, significantly reducing the number of controllers used and further saving costs.

[0029] 2. By configuring the number M according to the formula M·w+(M-1)·x≤L≤M·w+M·x, the control of the controller can be more closely matched with the driving process of the vehicle, and the energy transmitting end at the driving position of the vehicle can be reliably coupled with the coil of the energy receiving end, while the other energy transmitting ends stop working, thereby further saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the system connection principle of the present invention;

[0031] Figure 2 This is a schematic diagram of the controller of the present invention controlling the real-time switching of multiple primary coils;

[0032] Figure 3 This is a schematic diagram of the interior of the control box of the present invention;

[0033] Figure 4 This is a schematic diagram of the connection between the control panel, position detector and relay of the present invention. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0035] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0036] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0037] It will also be understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0038] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0039] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0040] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of the present application include a particular feature, structure, or characteristic described in conjunction with that embodiment. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized. "Multiple" means "two or more."

[0041] Example 1

[0042] like Figure 1-4 The figure discloses a connection diagram of a preferred embodiment of a dynamic wireless charging energy transmitter one-band multi-control system provided by the present invention. For ease of explanation, only the parts related to this embodiment are shown, which are detailed as follows:

[0043] The purpose of the present invention is to provide a dynamic wireless energy transmission system that can prevent the problem of no-load loss caused by the primary multi-coil circuit and can switch between multiple devices in real time. The dynamic wireless charging system uses a set of inverters, resonant inductors, compensation capacitors (C i and C fi ) and soft start switches to control multiple sets of transmitter primary coils.

[0044] The present invention discloses a dynamic wireless charging energy transmitter-with-multiple control system, comprising N energy transmitters and an energy receiver mounted on a vehicle. The energy transmitters include primary transmitting coils uniformly laid beneath the road surface along the road's continuation direction, M controllers, and N position detection modules, with each primary transmitting coil positioned in front of a position detection module. The energy transmitters also include a soft-start circuit, an inverter circuit, a primary resonant circuit, and a main power line relay, connected in series between the DC bus and the primary transmitting coils. AC power from the power grid is rectified and converted to DC power for input into an inverter. The switching frequency of the inverter's switches is adjusted to equal the system's resonant frequency, generating a corresponding resonant excitation signal. The system's resonant frequency depends on the parameters of the LCC resonant network. The energy receiver consists of a secondary receiving coil, a secondary resonant circuit, a secondary rectifier circuit, and a DC / DC converter circuit, ultimately transferring energy to an onboard battery pack (i.e., the load). The secondary rectifier circuit converts the high-frequency AC power transmitted from the resonant circuit into DC power. The DC / DC circuit controls system power and improves system efficiency, ultimately transferring energy to the load. The LCC resonant network on the primary and secondary sides enables the system to achieve single power factor output. The DC / DC circuit is used to control the output power to improve efficiency. The primary side multi-coil energy transmission system composed of multiple energy transmitting devices realizes dynamic wireless charging of the secondary side receiving device.

[0045] Controller M i The signal input end of the controller M is connected to the signal output end of the i-th, i+M, ..., (n-1)M+i position detection modules respectively. i The control signal output terminals are connected to the i-th, i+M, ..., (n-1)M+i-th soft start circuits and the i-th, i+M, ..., (n-1)M+i-th main power line relays, respectively, where i=1, 2, ..., M;

[0046] Here, n is the number of energy transmitters contained in each group after N energy transmitters are divided into M groups according to the number of controllers. n is also the number of transmitting coils controlled by one controller. N = M·n, where M is much smaller than N, thus achieving switching of multiple transmitting coils in one belt.

[0047] Preferably, the number of M is determined by the formula M·w+(M-1)·x≤L≤M·w+M·x;

[0048] Wherein, w is the width of the primary transmitting coil, x is the distance between the two primary transmitting coils, L is the length of the electric vehicle, and M is an integer.

[0049] In the position detection module Q i After detecting the car coming, it communicates with the controller M through the communication signal i Communication, controller M iCalculate the speed of the car and assume that the speed of the car remains unchanged during this period, thereby inferring the position of the receiving end coil, thereby generating a corresponding signal to control the closing of relay K1 in this control box and control the corresponding main power circuit relay S i Closed, so that the transmitting end coil and the receiving end coil of the line are coupled and work, and the car has left Q i-1 , which is consistent with M i-1 The controller communicates with the relays K1, K2 and S in the control box. i-1 disconnected, but the corresponding Q i+1 The position detector and other position detectors also detect the arrival of the car, and the controller M i+1 Control the K1 of the corresponding control box to close, and give C in Charging, in order to achieve soft start later, but the receiving coil has not arrived, then M i+1 K2 in the control box is not closed, so the other coils are in the off state of relay S. This system satisfies the purpose of reducing the no-load loss of the energy transmitter by automatically operating the transmitting coil when the receiver is moved to a position where the receiving coil is directly aligned with a transmitting coil, while the remaining transmitting coils are essentially inoperative. The value of i in this section is not less than 2.

[0050] When the position detector Q i After work, the corresponding M i The controller works, controls its internal relay K1 to close, and the busbar is rectified by the rectifier bridge and then fed to the capacitor C in advance through the resistor R. in Charge until the signal is received (ie the receiving end coil and Q i When the coil is facing the control relay K2, the position detector has completed the relay S i Control it to close, and finally realize the soft start of the energy transmission system, so that the system gradually enters the normal working state, and reduces the damage of the impact current to the components of the circuit.

[0051] At the receiving end, the coil leaves the Q i After the transmitting coil, M i The controller controls the relay K2 to disconnect until the receiving end coil is connected to the Q i+M When the transmitting coils are facing each other, close the relays K2 and S i+M ; At the receiving end, the coil leaves the Q i The transmitting coil until it is connected to the Q i+1 When the transmitting coil is facing the Q i Transmitter coil operating mode.

[0052] Due to the adoption of the primary multi-coil design, multiple primary energy transmitting devices will operate at no load when the secondary receiving device is not passing through, which will greatly increase the energy loss of the energy transmission system and reduce the energy conversion efficiency. The present invention realizes real-time switching of the primary multi-coil and segmented power supply through the above control method to reduce energy loss.

[0053] Preferably, when N cannot be divided by M, the remaining energy transmitters and position detection modules are connected to the respective controllers in a sequential manner, including:

[0054] Starting from the first controller, the signal output end of the remaining first position detection module is connected to the signal input end of the first controller, and the control signal input end of the soft start circuit and the main power line relay of the remaining first energy transmitter is connected to the control signal output end of the first controller;

[0055] Continue in sequence to ensure that all remaining energy transmitters and position detection modules are connected to each controller respectively.

[0056] More preferably, the system further includes an input filter capacitor disposed between the soft start circuit and the inverter circuit.

[0057] Preferably, the soft start circuit includes a line relay, a soft start relay and a soft start resistor connected in series with the soft start relay, and the control signal input ends of the line relay and the soft start relay are both connected to the control signal output end of the controller.

[0058] Preferably, the N primary transmitting coils are numbered 1, 2, ..., i, ..., N, and their inductance values ​​are L1, L2, ..., L i ,…,L N , the compensation capacitance values ​​corresponding to the inductors are C1, C2, ..., C i ,…,C N ;

[0059] The primary resonant circuit adopts an LCC resonant network system structure, and the inductance values ​​of the resonant inductors in the primary resonant circuit are L f1 , L f2 ,…,L fi ,…,L fN , the compensation capacitance values ​​corresponding to the resonant inductance are C f1 、C f2 ,…,C fi ,…,C fN ;

[0060] The inductance value of the primary transmitting coil, the compensation capacitance value corresponding to the inductance, the resonant inductance value of the primary resonant circuit, and the compensation capacitance value corresponding to the resonant inductance are calculated by the following formulas:

[0061]

[0062] Where ω0 is the resonant frequency of the system.

[0063] Preferably, the inductance of the secondary receiving coil is L T , the compensation capacitance value corresponding to the inductor is C T The secondary resonant circuit adopts an LCC resonant network system structure, and the inductance value of the resonant inductor of the secondary resonant circuit is L fT , the compensation capacitance value of its resonant inductance is C fT ;

[0064] The inductance value of the secondary receiving coil, the compensation capacitance value corresponding to the inductance, the resonant inductance value of the secondary resonant circuit, and the compensation capacitance value corresponding to the resonant inductance are calculated by the following formulas:

[0065]

[0066] Where ω0 is the resonant frequency of the system.

[0067] Preferably, the soft start circuits, inverter circuits, and primary resonant circuits of the M controllers and the N energy transmitting ends are all arranged in one control cabinet.

[0068] like Figure 3 As shown, each control box contains a soft start device, an inverter circuit, a primary resonant circuit and a transmitter coil compensation capacitor.

[0069] like Figure 4 As shown, the control board receives information from the position detector, controlling the operation of relays K1 and K2 to achieve soft starting. When the position detector detects the vehicle's arrival, it directly controls the corresponding relay S to close, connecting the main power circuit. The controller then calculates the arrival of the receiving coil and closes K2, completing the process of the transmitter transferring energy through the receiving coil to the battery load.

[0070] The present invention also provides a control method for a dynamic wireless charging energy transmitter with a multi-control system, including: when receiving a signal sent by a certain position detection module, the controller controls the soft start circuit and main power line relay of the corresponding energy transmitter to turn on, and controls the soft start circuit and main power line relay of the previous energy transmitter to turn off.

[0071] Example 2

[0072] This embodiment describes the control method of the present invention in conjunction with a specific system, as follows:

[0073] In this specific system, the vehicle length L is set to satisfy: 3W+2X≤L≤3(W+X), that is, M=3. Therefore, three control boxes are used, and the controllers are numbered M1, M2, and M3. The position detectors are numbered Q1, Q2, Q3, ..., Q9 (or Q10, Q11). Let Figure 4 where i=1.

[0074] After the position detection module Q1 detects the approach of the car, the position detector Q1 works, and the corresponding M1 controller works to control its internal relay K1 to close. After the bus is rectified by the rectifier bridge, the current is fed to the capacitor C in advance through the resistor R. in Charging, until receiving the signal (that is, when the receiving end coil is facing the coil at Q1), controlling the relay K2 to close, and finally realizing the soft start of the energy transmission system, so that the system gradually enters the normal working state, reducing the damage of the impact current to the various components of the circuit.

[0075] The controller M1 communicates with the controller M1 through the communication signal. The controller M1 calculates the speed of the car and assumes that the speed of the car remains unchanged during this period of time, thereby inferring the position of the receiving coil. The corresponding signal is generated to control the relay K2 to close, so that the transmitting coil and the receiving coil of the circuit are coupled and work.

[0076] When the receiving coil leaves Q1 and reaches Q2, the front of the car has passed the position detector Q4, which communicates with the M1 controller to control the relay K2 and S1 in the control box to disconnect. At this time, K1 closes and continues to supply C in Charging. At this point, the coil reaches Q2, and the M2 control box repeats the process of the M1 control box. At this point, the other coil is in the off state of relay S. The system satisfies the requirement that when the receiver moves to a point where the receiving coil is directly aligned with a particular transmitting coil, that transmitting coil automatically operates normally, while the remaining transmitting coils are essentially inoperative, thereby reducing the no-load losses of the energy transmitting device. Therefore, in a dynamic energy transmission system composed of multiple energy injection devices, only the energy transmitting devices coupled to the receiving coil will be activated when a vehicle passes, thereby reducing the no-load losses of the energy transmitting devices and improving energy transmission efficiency.

[0077] This cycle continues, completing a one-to-many dynamic wireless energy transmission system. When N = 9, each controller controls exactly three coils: M1 controls Q1, Q4, and Q7; M2 controls Q2, Q5, and Q8; and M3 controls Q3, Q6, and Q9. However, when N = 10, an additional coil is added, connected to control box M1, completing another closed-loop control. If N = 11, the tenth coil is connected to M1, and the eleventh coil is connected to M2. This allows all coils to be controlled using just three control boxes.

[0078] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A dynamic wireless charging energy transmitter-multiple control system, comprising N energy transmitters and an energy receiver mounted on a vehicle, wherein the energy transmitters comprise primary transmitting coils uniformly laid beneath the road surface along the road's continuation direction, and characterized by: It also includes M controllers and N position detection modules. A position detection module is arranged in front of each primary transmitting coil. The energy transmitting end also includes a soft start circuit, an inverter circuit, a primary resonant circuit and a main power line relay connected in series between the DC bus and the primary transmitting coil. The controller M i The signal input end of the controller M is connected to the signal output end of the i-th, i+M, ..., (n-1)M+i position detection modules respectively. i The control signal output terminals are connected to the i-th, i+M, ..., (n-1)M+i-th soft start circuits and the i-th, i+M, ..., (n-1)M+i-th main power line relays, respectively, where i=1, 2, ..., M; Where n is the number of energy transmitters contained in each group after the N energy transmitters are divided into M groups according to the number of controllers; The number of M is determined by the formula M·w+(M-1)·x≤L≤M·w+M·x; Wherein, w is the width of the primary transmitting coil, x is the distance between the two primary transmitting coils, L is the length of the electric vehicle, and M is an integer; The device also includes an input filter capacitor arranged between the soft start circuit and the inverter circuit.

2. The dynamic wireless charging energy transmitter one-to-many control system according to claim 1, characterized in that: When N cannot be divided by M, the remaining energy transmitters and position detection modules are connected to the various controllers in sequence, including: Starting from the first controller, the signal output end of the remaining first position detection module is connected to the signal input end of the first controller, and the control signal input end of the soft start circuit and the main power line relay of the remaining first energy transmitter is connected to the control signal output end of the first controller; Continue in sequence to ensure that all remaining energy transmitters and position detection modules are connected to each controller respectively.

3. The dynamic wireless charging energy transmitter one-to-many control system according to claim 1, characterized in that: The soft start circuit includes a line relay, a soft start relay and a soft start resistor connected in parallel with the soft start relay in series. The control signal input ends of the line relay and the soft start relay are both connected to the control signal output end of the controller.

4. The dynamic wireless charging energy transmitter one-to-many control system according to claim 1, characterized in that: The N primary transmitting coils are numbered 1, 2, ..., i, ..., N, and their inductance values ​​are L1, L2, ..., L i ,…,L N , the compensation capacitance values ​​corresponding to the inductors are C1, C2, ..., C i ,…,C N ; The primary resonant circuit adopts an LCC resonant network system structure, and the inductance values ​​of the resonant inductors in the primary resonant circuit are L f1 , L f2 ,…,L fi ,…,L fN , the compensation capacitance values ​​corresponding to the resonant inductance are C f1 、C f2 ,…,C fi ,…,C fN ; The inductance value of the primary transmitting coil, the compensation capacitance value corresponding to the inductance, the resonant inductance value of the primary resonant circuit, and the compensation capacitance value corresponding to the resonant inductance are calculated by the following formulas: Where ω0 is the resonant frequency of the system.

5. The dynamic wireless charging energy transmitter one-to-many control system according to claim 1, characterized in that: The energy receiving end includes a secondary receiving coil and a secondary resonant circuit, a secondary rectifier circuit and a DC / DC conversion circuit which are sequentially connected in series between the secondary receiving coil and the load.

6. The dynamic wireless charging energy transmitter one-to-many control system according to claim 5, characterized in that: The inductance of the secondary receiving coil is L T , the compensation capacitance value corresponding to the inductor is C T The secondary resonant circuit adopts an LCC resonant network system structure, and the inductance value of the resonant inductor of the secondary resonant circuit is L fT , the compensation capacitance value of its resonant inductance is C fT ; The inductance value of the secondary receiving coil, the compensation capacitance value corresponding to the inductance, the resonant inductance value of the secondary resonant circuit, and the compensation capacitance value corresponding to the resonant inductance are calculated by the following formulas: Where ω0 is the resonant frequency of the system.

7. The dynamic wireless charging energy transmitter one-to-many control system according to claim 1, characterized in that: The soft start circuit, inverter circuit and primary side resonant circuit of M controllers and N energy transmitting ends are all arranged in a control cabinet.

8. A control method for a dynamic wireless charging energy transmitter with multiple control systems according to claim 1, characterized in that: When receiving a signal sent by a certain position detection module, the controller controls the soft start circuit and main power line relay of the corresponding energy transmitter to open, and controls the soft start circuit and main power line relay of the previous energy transmitter to close.

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