Journal of Intelligent & Robotic Systems

, Volume 74, Issue 1–2, pp 193–207 | Cite as

Battery State-Of-Charge Based Altitude Controller for Small, Low Cost Multirotor Unmanned Aerial Vehicles

  • Michal Podhradský
  • Calvin Coopmans
  • Austin Jensen
Article

Abstract

Small unmanned aerial vehicles (UAV) are typically driven by Lithium polymer batteries. The batteries have their own dynamics, which changes during discharge. Classical approaches to altitude control assume a time-invariant system and therefore fail. Adaptive controllers require an identified system model which is often unavailable. Battery dynamics can be characterized and used for a battery model-based controller. This controller is useful in situations when no feedback from actuators (such as RPM or thrust) is available. After measuring the battery dynamics for two distinct types of batteries, a controller is designed and experimentally verified, showing a consistent performance during entire discharge test and a consequent flight verification.

Keywords

Unmanned aerial vehicles UAV Vertical take-off and landing VTOL Hexarotor Multirotor Altitude control Battery monitoring and modeling 

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Michal Podhradský
    • 1
  • Calvin Coopmans
    • 1
  • Austin Jensen
    • 1
  1. 1.Utah Water Research LaboratoryUtah State UniversityLoganUSA

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