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A family of smooth controllers for swinging up a pendulum

Publiceringsår: 2008
Språk: Engelska
Sidor: 1841-1848
Publikation/Tidskrift/Serie: Automatica
Volym: 44
Nummer: 7
Dokumenttyp: Artikel i tidskrift
Förlag: Pergamon


The paper presents a new family of controllers for swinging up a pendulum. The swinging up of the pendulum is derived from physical arguments based on two ideas: shaping the Hamiltonian for a system without damping; and providing damping or energy pumping in relevant regions of the state space. A family of simple smooth controllers without switches with nice properties is obtained. The main result is that all solutions that do not start at a zero Lebesgue measure set converge to the upright position for a wide range of the parameters in the control law. Thus, the swing-up and the stabilization problems are simultaneously solved with a single, smooth law. The properties of the solution can be modified by the parameters in the control law. Control signal saturation can also be taken into account using the Hamiltonian approach. (c) 2008 Elsevier Ltd. All rights reserved.


  • Control Engineering
  • swing-up
  • pendulum
  • shaping Hamiltonians
  • energy management


  • LCCC-lup-obsolete
  • ISSN: 0005-1098

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