The invention provides a power control system of a hybrid unmanned aerial vehicle, which comprises a fuel power generation system, a lithium battery, a charging and discharging circuit and a controller, and is characterized in that the fuel power generation system provides three-phase AC by combusting oil gas and outputs stable DC through an AC/DC rectifying circuit, and a DC bus is connected witha motor to serve as a main power source of the unmanned aerial vehicle; the lithium battery is connected with the direct-current bus through the charging and discharging circuit, is used for realizing charging and energy storage or discharging of the lithium battery as an auxiliary power source of the unmanned aerial vehicle, and supplies power to the controller; the controller is used for judging the power operation mode of the unmanned aerial vehicle and sending a control signal to change the power source of the unmanned aerial vehicle; when the power is smaller than 2 kW, only the lithiumbattery supplies power to the motor, when the power is 2-5 kW, the fuel power generation system supplies power to the motor and charges the lithium battery, and when the power is larger than 5 kW, thefuel power generation system and the lithium battery supply power to the motor at the same time. The power stability and the power system reaction speed of the unmanned aerial vehicle are improved.
本发明提供一种混动无人机的动力控制系统,包括燃油发电系统、锂电池、充放电电路和控制器,所述燃油发电系统通过燃烧油气提供三相交流电,并通过AC/DC整流电路输出稳定的直流电,直流母线连接电动机作为无人机主要动力源;所述锂电池通过充放电电路连接直流母线,用于实现锂电池充电蓄能或放电作为无人机辅助动力源,所述锂电池还向控制器供电;所述控制器用于判定无人机的动力运行模式并发出控制信号改变无人机的动力来源:小于2kW时,仅锂电池向电动机供电,2~5kW时,燃油发电系统向电动机供电并向锂电池充电,大于5kW时,燃油发电系统和锂电池同时向电动机供电。本发明提高了无人机的动力稳定性和动力系统反应速度。
Power control system and method for hybrid unmanned aerial vehicle
一种混动无人机的动力控制系统及方法
2020-04-14
Patent
Electronic Resource
Chinese
Unmanned aerial vehicle hybrid power system and control method
European Patent Office | 2020
|European Patent Office | 2024
|European Patent Office | 2024
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