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Reaction Wheel Control System for a Self-balancing Bike: Reaction wheel based control mechanism for a small scale prototype bike
KTH, School of Industrial Engineering and Management (ITM).
2023 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Design och reglersystem för en självbalanserande cykel : Reaktionshjulsbaserat reglersystem för småskalig prototyp cykel (Swedish)
Abstract [en]

In this thesis, the design of a self balancing prototype bike with a reaction wheel as balancing mechanism will be investigated. Bikes are inherently unstable systems, that dynamically resemble an inverted pendulum at a stand still. Previous work has mostly been focused on keeping the balance through manipulating the steering input, and using state space modelling in order to balance the bike. In this project, a PID controller was implemented as a mean of control for the reaction wheel which was driven by a brushless DC motor. Different variations of Ziegler Nichols tuning methods were compared, and an alternative heuristic tuning method for the PID controller was also tested. The standard Ziegler Nichols and the alternative method yielded the best results.

Abstract [sv]

I detta kandidatexamensarbete kommer designen av en självbalanserande prototyp cykel med ett reaktionshjul som balanseringsmekanism att undersökas. Cyklar är instabila system, som dynamiskt liknar en inverterad pendel när de är stationära. Tidigare arbeten har huvudsakligen fokuserat på att hålla balansen genom att elektroniskt manipulera styrinmatningen och använda modern regelteknik för att balansera cykeln. I det här projektet implementerades en PID-regulator som ett medel för att styra reaktionshjulet, driven av en borstlös likströmsmotor. Olika varianter av Ziegler Nichols-metoden och den alternativa metoden gav de bästa resultaten.

Place, publisher, year, edition, pages
2023. , p. 52
Series
TRITA-ITM-EX ; 2023:87
Keywords [en]
Mechatronics, Control Theory, Reaction Wheel, PID Controller, Robotics
Keywords [sv]
Mekatronik, Reglerteknik, Mekanik, PID reglering, Robotik
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-330177OAI: oai:DiVA.org:kth-330177DiVA, id: diva2:1775716
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Available from: 2023-06-27 Created: 2023-06-27 Last updated: 2023-06-27Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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