System and method for testing thrust of distributed electric propulsion unmanned aerial vehicle in real time
A real-time test, drone technology, applied in the field of drones, to achieve high test accuracy, easy installation, and light weight
Pending Publication Date: 2021-09-17
NORTHWESTERN POLYTECHNICAL UNIV
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But this kind of force measuring platform cannot perform real-time thrust measurement when the aircraft is actually flying
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[0062] The designed real-time test system for the electrical parameters of the airborne propulsion unit is installed on the distributed electric propulsion UAV provided by 24 ducted fans. The installation method is as follows: Figure 9 As shown; the real-time electrical parameter data of the unmanned aerial vehicle is tested and collected during one flight sortie, and the real-time thrust is estimated from the collected data. The estimated thrust curve is as follows: Figure 10 As shown; the estimated thrust error is small, and the estimation method and the design of the hardware system have achieved the desired effect.
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The invention discloses a system and method for testing thrust of a distributed electric propulsion unmanned aerial vehicle in real time. The system comprises an electric propeller ground test system and an airborne electric signal real-time acquisition system. The method comprises the following steps: firstly, designing a ground experiment table of an electric thruster ground test system, obtaining a thrust curve through ground test, and then obtaining a force-effect function relationship of the tested thruster through curve fitting; then designing the airborne electric signal real-time acquisition system, and acquiring electric parameters of each propulsion unit in real time; and finally, designing a real-time thrust estimation method, and estimating the real-time thrust generated by each propeller when the unmanned aerial vehicle flies by using the collected data. The real-time thrust test system and the estimation method have high test precision, and real-time thrust data of each propulsion unit of the distributed electric propulsion unmanned aerial vehicle can be obtained in real time on a ground station.
Description
technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to a thrust real-time testing system and method of an unmanned aerial vehicle. Background technique [0002] With the rapid development of air traffic, the environmental problems brought about by air freight, urban navigation and other air transport industries also need to be solved urgently. People are trying to find solutions to replace traditional fossil fuels. The United States and the European Union have also put forward new requirements for the next generation of commercial aircraft in terms of fuel consumption, noise control and pollutant emissions, and have set development goals. On the basis of the development of multi- / all-electric aircraft technology, electric propulsion technology has become an important development direction for the electrification of aircraft power systems, which is expected to further improve the flight aerodynamic efficie...
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Login to View More IPC IPC(8): G01L5/00
CPCG01L5/00
Inventor 雷涛张星雨王彦博闵志豪金贤球张晓斌
Owner NORTHWESTERN POLYTECHNICAL UNIV
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