A power supply control circuit, method and apparatus for a hybrid power system

Abstract

A power supply control circuit, method and device for a hybrid power system, the power output control unit includes a power output control module, the hybrid power unit is used for sequentially converting chemical energy of fuel into mechanical energy and electric energy, and finally outputs a first power supply signal to the power output control module, the power output control module outputs a collection signal to the signal processing unit based on the first power supply signal output by the hybrid power unit and the second power supply signal output by the power supply bus; the signal processing unit synchronously acquires the collection signal and the second control signal transmitted from the ground end, combines to generate a first control signal and delivers to the hybrid power unit, and the hybrid power unit adjusts the output power based on the first control signal. The application realizes the matching of the output power of the hybrid power unit and the power demand of the power supply bus, solves the hysteresis problem of the traditional control mode, and reduces the use of the battery pack.

Description

Technical Field

[0001] This invention relates to the field of power supply technology for unmanned aerial vehicles (UAVs), and more particularly to a power supply control circuit, method, and apparatus for a hybrid power system. Background Technology

[0002] Currently, existing hybrid electric drones are powered by an engine that charges a large-capacity battery pack. This method requires a large battery pack capacity, and the large battery pack will affect the economy and safety of flight. Another method is to power the drone by connecting the engine and the battery pack in parallel. The role of the battery pack is to stabilize the power output when the power demand changes suddenly. This method is prone to inaccurate power judgment because the engine power output is referenced to the voltage of the power supply bus. Summary of the Invention

[0003] One objective of this application is to provide a power supply control circuit for a hybrid power system, which generates a first control signal by combining a collected signal and a second control signal transmitted from the ground end to adjust the output power of the hybrid power unit, thereby achieving a match between the output power of the hybrid power unit and the power demand of the power supply bus. Another objective of this application is to provide a power supply control method for a hybrid power system, and yet another objective of this application is to provide a power supply control device for a hybrid power system.

[0004] To achieve the above objectives, this application proposes a power supply control circuit for a hybrid power system, including a hybrid power unit, a power output control unit, and a signal processing unit that cooperate with each other. The power output control unit includes a power output control module, which is electrically connected to the hybrid power unit and the power supply bus, and is signal-connected to the signal processing unit, which is signal-connected to the hybrid power unit. The hybrid power unit is used to convert the chemical energy of fuel combustion into mechanical energy and electrical energy in sequence, and finally output a first power supply signal to the power output control module. The power output control module outputs a sampled signal to the signal processing unit based on the first power supply signal output by the hybrid power unit and the second power supply signal output by the power supply bus. The signal processing unit synchronously acquires the acquired signal and the second control signal transmitted from the ground end, combines the acquired signal and the second control signal to generate a first control signal and sends it to the hybrid power unit, and the hybrid power unit adjusts its output power based on the first control signal.

[0005] Optionally, the power output control unit may further include a voltage regulator module; The input terminal of the voltage regulator module is electrically connected to the output terminal of the hybrid power unit, and the output terminal of the voltage regulator module is electrically connected to one of the connection ports of the power output control module. The voltage regulator module is used to stabilize the first power supply signal output by the hybrid power unit and output the stabilized first power supply signal to the power output control module.

[0006] Optionally, the power output control unit may further include a backup battery pack and a supercapacitor pack; The power output control module is electrically connected to the backup battery pack through one of the connection ports, and the supercapacitor group is connected in parallel on the connection circuit between the power output control module and the power supply bus. The backup battery pack is used to provide power to the hybrid power unit and the power supply bus.

[0007] Optionally, the hybrid power unit includes a throttle control mechanism, an engine, a starter-generator integrated motor, and a rectifier module connected in sequence; The throttle control mechanism is signal-connected to the signal processing unit, the throttle control mechanism is mechanically connected to the engine, the engine is mechanically connected to the starter motor, the starter motor is electrically connected to the input terminal of the rectifier module, and the output terminal of the rectifier module is electrically connected to the input terminal of the voltage regulator module. The throttle control mechanism adjusts the throttle opening based on the first control signal output by the signal processing unit, thereby adjusting the engine output power. The engine converts the chemical energy of fuel into mechanical energy and drives the starter motor to convert the mechanical energy into electrical energy and output it to the rectifier module. The rectifier module converts the received electrical energy into DC power and outputs it to the voltage regulator module. The backup battery pack outputs DC power to the rectifier module through the power output control module, and the DC power is transmitted to the starter motor through the rectifier module to provide power for the starter motor to start the engine.

[0008] Optionally, the signal processing unit includes a control module and a communication module; The control module is connected to the power output control module, the throttle control mechanism and the communication module respectively; The communication module is used to receive the second control signal and transmit it to the control module. The control module combines the acquisition signal transmitted by the power output control module and the second control signal transmitted by the communication module to generate a first control signal to the throttle control mechanism.

[0009] Optionally, the backup battery pack includes multiple lithium batteries connected in series, wherein the lithium batteries are power batteries; The power output control module is also used to output electrical energy to charge the backup battery pack when the hybrid power unit is supplying power normally.

[0010] Optionally, the power output control module includes a microcontroller; The microcontroller is used to acquire the first power supply signal and the second power supply signal and generate the acquired signal.

[0011] Optionally, the supercapacitor bank includes multiple supercapacitors; The supercapacitor bank is used to stop discharging when the second power supply signal is stable.

[0012] Another aspect of this application proposes a power supply control method for a hybrid power system, the method comprising: The acquired signal is output based on the first power supply signal and the second power supply signal; The first control signal is generated based on the acquired signal and the second control signal transmitted from the ground terminal; The output power of the hybrid power unit is adjusted based on the first control signal.

[0013] In another aspect, this application provides a power supply control device for a hybrid power system, the power supply control device for a hybrid power system including the power supply control circuit for a hybrid power system as described above.

[0014] The power supply control circuit for a hybrid power system disclosed in this application determines the power supply capacity of the hybrid power unit and the power demand of the load by simultaneously acquiring the output current and voltage of the hybrid power unit and the output current and voltage of the power supply bus. These two parameters are converted into acquisition signals and transmitted to the signal processing unit. This solves the problem of inaccurate power judgment caused by the single acquisition of the power supply bus voltage in the prior art. At the same time, the signal processing unit receives the acquisition signals and the second control signal transmitted from the ground end. It combines the acquisition signals and the second control signals to generate a first control signal and outputs it to the hybrid power unit. The hybrid power unit adjusts its output power according to the first control signal to achieve matching between the output power of the hybrid power unit and the power demand of the power supply bus. This avoids the voltage drop of the power supply bus caused by sudden changes in power demand and solves the lag problem of traditional control methods. Therefore, the battery pack does not need to participate in the power regulation process, reducing the use of the battery pack. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a structural diagram of the power supply control circuit for a hybrid power system according to an embodiment of this application.

[0016] Figure 2 This is a flowchart of a power supply control method for a hybrid power system according to an embodiment of this application.

[0017] Figure label: 100: Hybrid power unit; 200: Power output control unit; 300: Signal processing unit; 400: Power supply bus; 110: Throttle control mechanism; 120: Engine; 130: Starter motor; 140: Rectifier module; 210: Voltage regulator module; 220: Power output control module; 230: Backup battery pack; 240: Supercapacitor pack; 310: Control module; 320: Communication module. Detailed Implementation

[0018] In order to solve at least one of the problems existing in the prior art, according to one aspect of this application, such as Figure 1 As shown, this embodiment discloses a power supply control circuit for a hybrid power system, including a hybrid power unit 100, a power output control unit 200, and a signal processing unit 300. The power output control unit 200 includes a power output control module 220, which is electrically connected to the hybrid power unit 100 and a power supply bus 400, and signal-connected to the signal processing unit 300. The signal processing unit 300 is signal-connected to the hybrid power unit 100. The hybrid power unit 100 converts the chemical energy of fuel combustion into mechanical energy and electrical energy sequentially, and finally outputs a first power supply signal to the power output control module 220. The power output control module 220 outputs a sampling signal to the signal processing unit 300 based on the first power supply signal output by the hybrid power unit 100 and the second power supply signal output by the power supply bus 400. The signal processing unit 300 synchronously acquires the sampling signal and a second control signal transmitted from the ground, combines the sampling signal and the second control signal to generate a first control signal and transmits it to the hybrid power unit 100. The hybrid power unit 100 adjusts its output power based on the first control signal.

[0019] Specifically, the power output control module 220 has multiple connection ports, which are electrically connected to the hybrid power unit 100 and the power supply bus 400, and signal connected to the signal processing unit 300. After receiving the acquired signal and the second control signal transmitted from the ground, the signal processing unit 300 predicts the voltage change trend of the power supply bus through a feedforward prediction mechanism. When the power supply bus voltage drops, the power generation of the hybrid power unit needs to be increased; when the power supply bus voltage rises, the power generation of the hybrid power unit needs to be decreased, thereby generating a first control signal and transmitting it to the hybrid power unit 100. After receiving the first control signal, the hybrid power unit 100 autonomously adjusts its output power according to the first control signal to match the output power of the hybrid power unit 100 with the power demand of the power supply bus 400. Through the cooperation of the hybrid power unit 100, the power output control unit 200, and the signal processing unit 300, the power supply control circuit can directly supply power to the power supply bus 400, solving the problems of large battery pack usage and slow power regulation in existing UAV power supply technologies.

[0020] It should be noted that, in the specific embodiments of this application, the first power supply signal is the current and voltage value output by the hybrid power unit, and the second power supply signal is the current and voltage value output by the power supply bus 400.

[0021] In an optional embodiment, the power output control unit 200 further includes a voltage regulator module 210; the input terminal of the voltage regulator module 210 is electrically connected to the output terminal of the hybrid power unit 100, and the output terminal of the voltage regulator module 210 is electrically connected to one of the connection ports of the power output control module 220; the voltage regulator module 210 is used to stabilize the first power supply signal output by the hybrid power unit 100, and output the stabilized first power supply signal to the power output control module 220.

[0022] In a specific example, the voltage regulator module 210 stabilizes the first power supply signal output by the hybrid power unit 100 to the rated voltage that the UAV can use, so as to avoid the output voltage fluctuation of the hybrid power unit 100 from affecting the power load of the UAV. The stabilized first power supply signal is then sent to the power output control module 220, which then distributes it to the power supply bus 400.

[0023] In an optional embodiment, the power output control unit 200 further includes a backup battery pack 230 and a supercapacitor pack 240; the power output control module 220 is electrically connected to the backup battery pack 230 through one of its connection ports, and the supercapacitor pack 240 is connected in parallel in the connection loop between the power output control module 220 and the power supply bus 400; the backup battery pack 230 is used to provide power to the hybrid power unit 100 and the power supply bus 400.

[0024] In an optional embodiment, the backup battery pack 230 includes a plurality of lithium batteries connected in series, wherein the lithium batteries are power batteries; the power output control module 220 is also used to output electrical energy to charge the backup battery pack 230 when the hybrid power unit 100 is normally powered.

[0025] Specifically, the backup battery pack 230 is electrically connected to the power output control module 220 through one of its connection ports. It consists of multiple lithium batteries connected in series and does not need to perform the power stabilization function of a traditional hybrid drone battery pack; it serves only as an emergency and starting power source. On one hand, it provides starting power to the hybrid power unit 100, driving it to start. On the other hand, when the hybrid power unit 100 unexpectedly stops outputting power, it directly outputs power to the power supply bus 400, providing short-term power to the drone and ensuring its hovering safety. Simultaneously, when the hybrid power unit 100 is supplying power normally and the drone's flight status is stable, the power output control module 220 can adjust the current direction through the power management circuit to charge the backup battery pack 230, ensuring that the backup battery pack 230 is always fully charged or at a high charge level, eliminating the need for external charging equipment.

[0026] In an optional embodiment, the supercapacitor bank 240 includes a plurality of supercapacitors; the supercapacitor bank 240 is used to stop discharging when the second power supply signal is stable.

[0027] Specifically, the supercapacitor bank 240 is connected in parallel on the connection circuit between the power output control module 220 and the power supply bus 400. Composed of multiple supercapacitor banks 240, it serves as a voltage stabilizing component for the power supply bus 400, used to stabilize the voltage of the power supply bus 400. In a specific example, when a sudden power surge in the hybrid power unit 100 causes a sharp drop in the voltage of the power supply bus 400, the supercapacitor bank 240 rapidly discharges to replenish energy, quickly suppressing the voltage drop trend. Once the voltage of the power supply bus 400 stabilizes, the supercapacitor bank 240 immediately stops discharging and returns to standby mode. Through rapid charge and discharge response, it replaces the power stabilizing function of a traditional battery pack, avoiding the lifespan loss caused by frequent battery charging and discharging.

[0028] It should be noted that the supercapacitor bank is used to quickly discharge when the power supply bus voltage is lower than a set threshold to suppress voltage drop; the discharge stops when the power supply bus voltage returns to stability. The set threshold can be set according to actual needs, and this application will not elaborate on this.

[0029] In an optional embodiment, the hybrid power unit 100 includes a throttle control mechanism 110, an engine 120, an integrated starter-generator motor 130, and a rectifier module 140 connected in sequence; the throttle control mechanism 110 is signal-connected to the signal processing unit 300, the throttle control mechanism 110 is mechanically connected to the engine 120, the engine 120 is mechanically connected to the integrated starter-generator motor 130, the integrated starter-generator motor 130 is electrically connected to the input terminal of the rectifier module 140, and the output terminal of the rectifier module 140 is electrically connected to the input terminal of the voltage regulator module 210; the throttle control mechanism 110 is based on the signal processing unit... The first control signal output by 300 adjusts the throttle opening, thereby adjusting the output power of the engine 120. The engine 120 converts the chemical energy of fuel into mechanical energy and drives the starter-generator integrated motor 130 to convert the mechanical energy into electrical energy and output it to the rectifier module 140. The rectifier module 140 converts the received electrical energy into DC power and outputs it to the voltage regulator module 210. The backup battery pack 230 outputs DC power to the rectifier module 140 through the power output control module 220, which is then transmitted to the starter-generator integrated motor 130 to provide power for the starter-generator integrated motor 130 to start the engine 120.

[0030] Specifically, the engine 120 burns fuel to generate mechanical energy, which drives the integrated starter-generator motor 130. The integrated starter-generator motor 130 converts the mechanical energy into electrical energy and outputs it to the rectifier module 140. The rectifier module 140 converts the received electrical energy into direct current (DC) and sends it to the voltage regulator module 210 for voltage stabilization. Then, it is distributed to the power supply bus 400 via the power output control module 220 to achieve direct power supply. The backup battery pack 230 outputs DC power to the rectifier module 140 through the power output control module 220. This DC power is transmitted to the integrated starter-generator motor 130 via the rectifier module 140, driving the integrated starter-generator motor 130 to operate, thereby starting the engine 120 and completing the starting process of the hybrid power unit 100.

[0031] It should be noted that the voltage regulator module 210 is a DC-DC voltage regulator circuit, used to stabilize the fluctuating DC voltage within the rated operating voltage range of the UAV system. The rectifier module is a bidirectional AC-DC converter, used to convert the AC power output by the starter motor into DC power, or to invert DC power into AC power to drive the starter motor. These are conventional technical means in the field, and this application will not elaborate on them.

[0032] In an optional implementation, the power output control module 220 includes a microcontroller; the microcontroller is used to acquire the first power supply signal and the second power supply signal and generate an acquisition signal.

[0033] The power output control module 220 integrates a microcontroller and a power management circuit. The microcontroller collects the current and voltage values ​​output by the hybrid power unit 100 and the current and voltage values ​​of the power supply bus 400 in real time, and converts the collected electrical parameters into acquisition signals and sends them to the signal processing unit 300. The power management circuit is used to control the current input and output direction of the power output control module. The power management circuit is responsible for controlling the current output direction in the entire circuit to achieve the switching of multiple working modes, such as the hybrid power unit 100 supplying power to the power supply bus 400, the backup battery pack 230 charging, and the backup battery pack 230 supplying power to the hybrid power unit 100 to start the engine 120.

[0034] It should be noted that, in specific embodiments, the power management circuit is controlled by the level control signal output by the microcontroller and relies on the switching of internal switching devices to complete the switching of various working modes. Both the microcontroller and the power management circuit are conventional circuit structures in the art, and this application will not elaborate on them.

[0035] In an optional embodiment, the signal processing unit 300 includes a control module 310 and a communication module 320; the control module 310 is signal-connected to the power output control module 220, the throttle control mechanism 110, and the communication module 320 respectively; the communication module 320 is used to receive a second control signal and transmit it to the control module 310; the control module 310 combines the acquired signal transmitted by the power output control module 220 and the second control signal transmitted by the communication module 320 to generate a first control signal and transmit it to the throttle control mechanism 110.

[0036] Specifically, the throttle control mechanism 110 adjusts the throttle opening of the engine 120 based on the first control signal output by the signal processing unit 300, thereby adjusting the output power of the engine 120 to achieve matching between the output power of the hybrid power unit 100 and the power demand of the power supply bus 400.

[0037] In a specific example, the communication module 320 receives a second control signal from the ground, such as a drone throttle control signal, and transmits the received second control signal to the control module 310 in real time. The control module 310 first receives the acquisition signal transmitted by the power output control module 220, determines the power demand status of the power supply bus 400 based on the current and voltage parameters in the acquisition signal, and simultaneously receives the second control signal transmitted by the communication module 320. It then combines the second control signal to generate a first control signal and outputs it to the throttle control mechanism 110. This allows the engine 120 power to be adjusted in advance before the voltage of the power supply bus 400 shows a downward trend, thus realizing remote control of the drone's power supply from the ground.

[0038] This application also discloses a power supply control method, such as... Figure 2 As shown, applied to the power supply control circuit described above, the method includes: S100: Outputs the acquired signal based on the first power supply signal and the second power supply signal.

[0039] Specifically, the microcontroller in the power output control module collects the current and voltage values ​​output by the hybrid power unit and the power supply bus 400 in real time, converts the collected electrical parameters into acquisition signals, and transmits the acquisition signals to the control module of the signal processing unit in real time.

[0040] It should be noted that the microcontroller acquires data continuously in real time, and the acquisition frequency is adapted to the power demand response rate of the UAV, so that the control module can obtain the working status of the power supply bus 400 and the hybrid power unit in a timely manner.

[0041] S200: Generates the first control signal based on the acquired signal and the second control signal transmitted from the ground terminal.

[0042] Specifically, after receiving the acquired signal, the control module first determines the real-time power demand status of the power supply bus 400 based on the current and voltage parameters in the acquired signal. In a specific example, when the communication module receives the second control signal sent from the ground and transmits it to the control module, the control module combines the acquired signal and the second control signal to generate and output the first control signal to the throttle control mechanism of the hybrid power unit.

[0043] Specifically, the ground-based system collects operator commands and generates a second control signal for transmission. The signal processing unit simultaneously receives the collected signal from the power output control module and the second control signal from the ground. Using a pre-trained machine learning prediction model, it predicts the power demand trend of the power supply bus in the next moment—that is, the power shortage or surplus that will appear in the power supply bus in the next moment—and identifies voltage fluctuation trends in advance. This prediction result is used as a feedforward compensation amount, and combined with the collected signal and the second control signal, it directly generates a first control signal and outputs it to the throttle control mechanism. This allows the hybrid power unit's power adjustment to adapt to changes in the power demand of the power supply bus in advance. The machine learning prediction model is trained using supervised learning, with training samples consisting of massive amounts of historical flight data, specifically including the first power supply signal output by the hybrid power unit, the second power supply signal output by the power supply bus, the second control signal transmitted from the ground, and power demand data under different flight conditions. In a specific example, when the ground terminal sends a second control signal to increase the throttle, the control module anticipates that the power demand of the UAV will increase. Combining historical data with the prediction of the power change trend of the power supply bus, it coordinates with the acquired signal to directly generate the first control signal, enabling the engine to increase its output power in advance. This avoids a sudden voltage drop on the power supply bus 400 caused by a sudden change in power demand, thus solving the lag problem of traditional control methods.

[0044] It should be noted that the second control signal includes the throttle increase command, the throttle decrease command, and the power stability maintenance command. Through the feedforward prediction mechanism, the hybrid power unit can complete the increase or decrease of engine power in advance before the load power changes abruptly, to compensate for the instantaneous power gap or instantaneous power surplus generated by the power supply bus, thereby enabling the power supply bus to maintain voltage stability.

[0045] S300: Adjusts the output power of the hybrid power unit based on the first control signal.

[0046] Specifically, the adjustment response of the throttle control mechanism is matched with the compensation amplitude of the control signal, so that the adjustment of the engine output power can follow the power demand of the UAV in real time. At the same time, in conjunction with the voltage stabilization effect of the supercapacitor group, a continuous and stable power supply to the power supply bus 400 is achieved.

[0047] This application replaces the large-capacity battery pack in traditional hybrid drones with a direct power supply from a hybrid power unit, significantly reducing battery load and improving the drone's flight economy and payload capacity. It uses a supercapacitor bank to stabilize the voltage of the power supply bus 400, avoiding the lifespan loss caused by frequent charging and discharging of traditional battery packs and improving the reliability of the power supply system. Through compensation, it solves the hysteresis problem of power regulation in traditional voltage feedback control, enabling the output power of the hybrid power unit to follow the drone's power demand in real time, effectively suppressing voltage fluctuations in the power supply bus 400 and improving the safety of drone flight.

[0048] In another aspect, this application discloses a power supply control device for a hybrid power system, the power supply control device including the power supply control circuit for a hybrid power system as described above.

[0049] Based on the same principle, the implementation method of this power supply control device can be referred to the implementation method of the circuit described above, and this application will not repeat it here.

[0050] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0051] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A power supply control circuit for a hybrid power system, characterized in that, Includes a hybrid power unit, a power output control unit, and a signal processing unit; The power output control unit includes a power output control module, which is electrically connected to the hybrid power unit and the power supply bus, and is signal-connected to the signal processing unit, which is signal-connected to the hybrid power unit. The hybrid power unit is used to convert the chemical energy of fuel combustion into mechanical energy and electrical energy in sequence, and finally output a first power supply signal to the power output control module. The power output control module outputs a sampled signal to the signal processing unit based on the first power supply signal output by the hybrid power unit and the second power supply signal output by the power supply bus. The signal processing unit synchronously acquires the acquired signal and the second control signal transmitted from the ground end, combines the acquired signal and the second control signal to generate a first control signal and sends it to the hybrid power unit, and the hybrid power unit adjusts its output power based on the first control signal.

2. The power supply control circuit for a hybrid power system according to claim 1, characterized in that, The power output control unit also includes a voltage regulator module; The input terminal of the voltage regulator module is electrically connected to the output terminal of the hybrid power unit, and the output terminal of the voltage regulator module is electrically connected to one of the connection ports of the power output control module. The voltage regulator module is used to stabilize the first power supply signal output by the hybrid power unit and output the stabilized first power supply signal to the power output control module.

3. The power supply control circuit for a hybrid power system according to claim 2, characterized in that, The power output control unit also includes a backup battery pack and a supercapacitor pack; The power output control module is electrically connected to the backup battery pack through one of the connection ports, and the supercapacitor group is connected in parallel on the connection circuit between the power output control module and the power supply bus. The backup battery pack is used to provide power to the hybrid power unit and the power supply bus.

4. The power supply control circuit for a hybrid power system according to claim 3, characterized in that, The hybrid power unit includes a throttle control mechanism, an engine, an integrated starter-generator motor, and a rectifier module connected in sequence. The throttle control mechanism is signal-connected to the signal processing unit, the throttle control mechanism is mechanically connected to the engine, the engine is mechanically connected to the starter motor, the starter motor is electrically connected to the input terminal of the rectifier module, and the output terminal of the rectifier module is electrically connected to the input terminal of the voltage regulator module. The throttle control mechanism adjusts the throttle opening based on the first control signal output by the signal processing unit, thereby adjusting the engine output power. The engine converts the chemical energy of fuel combustion into mechanical energy and drives the starter motor to convert the mechanical energy into electrical energy and output it to the rectifier module. The rectifier module converts the received electrical energy into DC power and outputs it to the voltage regulator module. The backup battery pack outputs DC power to the rectifier module through the power output control module, and the DC power is transmitted to the starter motor through the rectifier module to provide power for the starter motor to start the engine.

5. The power supply control circuit for a hybrid power system according to claim 4, characterized in that, The signal processing unit includes a control module and a communication module; The control module is connected to the power output control module, the throttle control mechanism and the communication module respectively; The communication module is used to receive the second control signal and transmit it to the control module. The control module combines the acquisition signal transmitted by the power output control module and the second control signal transmitted by the communication module to generate a first control signal and transmit it to the throttle control mechanism.

6. The power supply control circuit for a hybrid power system according to claim 3, characterized in that, The backup battery pack includes multiple lithium batteries connected in series, and the lithium batteries are power batteries; The power output control module is also used to output electrical energy to charge the backup battery pack when the hybrid power unit is supplying power normally.

7. The power supply control circuit for a hybrid power system according to claim 3, characterized in that, The power output control module includes a microcontroller; The microcontroller is used to acquire the first power supply signal and the second power supply signal and generate the acquired signal.

8. The power supply control circuit for a hybrid power system according to claim 3, characterized in that, The supercapacitor bank includes multiple supercapacitors; The supercapacitor bank is used to stop discharging when the second power supply signal is stable.

9. A power supply control method for a hybrid power system, characterized in that, The method includes: The acquired signal is output based on the first power supply signal and the second power supply signal; The first control signal is generated based on the acquired signal and the second control signal transmitted from the ground terminal; The output power of the hybrid power unit is adjusted based on the first control signal.

10. A power supply control device for a hybrid power system, characterized in that, The power supply control device for the hybrid power system includes the power supply control circuit for the hybrid power system as described in any one of claims 1-8.

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