Controller Design and Imbalance Vibration Analysis in Active Magnetic Bearing System

능동자기베어링 시스템의 제어기 설계 및 불균형 진동 분석

  • 강종규 (충남대학교 기계공학과 대학원) ;
  • 신우철 (충남대 기계공학과 대학원) ;
  • 홍준희 (충남대 기계공학과)
  • Published : 2004.10.01

Abstract

Active magnetic bearings (AMB's) have become practical in many industrial fields and numbers of studies for magnetic bearing systems have been reported. However, AMB systems are open-loop unstable and thus require feedback control for robust stabilization and performance. In this paper, first, a rotation of the rotor around the inertial axis is considered and a rigorous modeling of a magnetic bearing system in which the rotation of the rotor is on its axis of inertia is developed. Next, to stabilize the AMB system a PID controller is used and experimentally analyze its rotational response.

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