Dynamic control of a spherical actuator with orientation measurement feedback

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Abstract

This paper presents a dynamic control algorithm of a permanent magnetic spherical actuator, which is capable of performing 3-degree-of-freedom (DOF) in a single rotor. This algorithm is based on the orientation measurement feedback of the rotor. As the orientation measurement of the spherical actuator has been a challenging problem so far. An orientation measurement system for the rotor is proposed in this paper and its performance is validated in an experimental platform. The dynamic model is also presented in this paper, which is derived by Lagrange's equations. The dynamic control algorithm is based on the computed torque method, which can linearize and decouple the control. Simulation results indicate the feasibility of the dynamic control algorithm.

Original languageEnglish
Title of host publicationProceedings of the 2012 7th IEEE Conference on Industrial Electronics and Applications, ICIEA 2012
Pages64-68
Number of pages5
DOIs
StatePublished - 2012
Event2012 7th IEEE Conference on Industrial Electronics and Applications, ICIEA 2012 - Singapore, Singapore
Duration: 18 Jul 201220 Jul 2012

Publication series

NameProceedings of the 2012 7th IEEE Conference on Industrial Electronics and Applications, ICIEA 2012

Conference

Conference2012 7th IEEE Conference on Industrial Electronics and Applications, ICIEA 2012
Country/TerritorySingapore
CitySingapore
Period18/07/1220/07/12

Keywords

  • computed torque method
  • dynamic control
  • orientation measurement
  • spherical actuator
  • torque model

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