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Development, Modelling and Control of a Multirotor Vehicle
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
2015 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The interest of drones in all forms has exploded in the recent years. The development of multirotor vehicles such as quadcopters and octocopters, has reached a point where they are cheap and versatile enough to start becoming a part of everyday life. It is clear to say that the future applications seem limitless. This thesis goes through the steps of development, modelling and control design of an octocopter system. The developed octocopter builds on a concept of using the mini computer Raspberry Pi together with the code generation functionality of Matlab/Simulink. The mathematical modelling of the octocopter includes the thrust and torques generated by the propellers, added with gyroscopic torque. These are combined with the aerodynamic effects caused by incoming air. The importance of modelling the later mentioned effects has increased with the demand of precise controlled extreme manoeuvres. A full state feedback based hybrid controller scheme is designed against a linearized model, which makes use of the motor dynamics. The controllers show good performance in simulations and are approved for flight tests, which are conducted on two separate occasions. The octocopter makes two successful flights, proving that the concept can be applied on multirotor vehicles. However, there is a miss-match between the mathematical model and the physical octocopter, leaving questions for future work.

Place, publisher, year, edition, pages
2015. , 103 p.
Keyword [en]
Multirotor, Octocopter, Blade flapping, Induced drag, Gyroscopic torque, Drone, Modelling, Control, Code generation, Raspberry Pi, Matlab, Simulink, Simulations, Flight tests
National Category
Control Engineering Embedded Systems Robotics Vehicle Engineering Aerospace Engineering
Identifiers
URN: urn:nbn:se:umu:diva-110889OAI: oai:DiVA.org:umu-110889DiVA: diva2:865733
External cooperation
SAAB Dynamics AB
Subject / course
Elektronik
Educational program
Master's Programme in Robotics and Control
Presentation
2015-09-24, TA208, Umeå University, Umeå, 15:00 (English)
Supervisors
Examiners
Available from: 2015-11-10 Created: 2015-10-29 Last updated: 2015-11-10Bibliographically approved

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DevelopmentModellingAndControlOfAMultirotorVehicle(55713 kB)2750 downloads
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Department of Applied Physics and Electronics
Control EngineeringEmbedded SystemsRoboticsVehicle EngineeringAerospace Engineering

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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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Output format
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