Energy efficient active vibration control strategies using electromagnetic linear actuators

Angel Torres Pérez, Ali Hassan, Stefan Kaczmarczyk, Philip Picton

Research output: Contribution to JournalConference Article

Abstract

Energy efficient current control methods in electromagnetic linear actuators are required to minimize the electrical power requirements imposed by active vibration control strategies. In this paper an efficient bidirectional buck-boost converter is discussed in two scenarios: an active vibration isolation system and an active dynamic vibration absorber (ADVA) using a voice coil motor (VCM) actuator. An electrical analogous circuit of an experimental test platform is used as part of the simulation model. This test platform is based on a vibration shaker that provides the based excitation required for the single Degree of-Freedom (1DoF) vibration model under study. The proposed bidirectional non-isolated buck-boost converter can recover the energy when the VCM acts as a generator and store it for future use. Simulation results prove that this type of topology is far more efficient than linear amplifiers typically used in active vibration control. Within the context of slender structures, this efficient current control method improves the viability of using active vibration control in flexible structures such as beams.
Original languageEnglish
Pages (from-to)1-15
Number of pages15
JournalJournal of Physics: Conference Series
Volume1048
Issue number12011
Early online date4 Jul 2018
DOIs
Publication statusE-pub ahead of print - 4 Jul 2018

Keywords

  • active DVA
  • bidirectional DC converters
  • buck-boost
  • switching power amplifier
  • voice coil motors

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