LINBAR DECOUPLING CONTROL OF ROTOR SPEED AND ROTOR FLUX IN INDUCTION MOTOR FOR HIGH DYNAMIC PERFORMANCE AND MAXIMAL POWER BFFICLENCY

동적 고성능과 최대 전력 효율을 위한 유도 전동기 회전자 속도와 회전자 자속의 선형 비간섭 제어

  • Kim, Dong-Il (Robotics and Intelligent Systems Laboratory Depart. of Control and Instrumentation Engr. Seoul National University) ;
  • Ha, In-Joong (Robotics and Intelligent Systems Laboratory Depart. of Control and Instrumentation Engr. Seoul National University) ;
  • Ko, Myoung-Sam (Robotics and Intelligent Systems Laboratory Depart. of Control and Instrumentation Engr. Seoul National University) ;
  • Park, Jae-Wha (Robotics and Intelligent Systems Laboratory Depart. of Control and Instrumentation Engr. Seoul National University)
  • 김동일 (서울대학교 제어계촉공학과 로보틱스 지능시스템 실험실) ;
  • 하인중 (서울대학교 제어계촉공학과 로보틱스 지능시스템 실험실) ;
  • 고명삼 (서울대학교 제어계촉공학과 로보틱스 지능시스템 실험실) ;
  • 박재화 (서울대학교 제어계촉공학과 로보틱스 지능시스템 실험실)
  • Published : 1989.07.21

Abstract

We attempt to achieve both high dynamic performance and maximal power efficiency by means of linear decoupling of rotor speed (or motor torque) and rotor flux. The induction motor with our controller possesses the input-output dynamic characteristics of a linear system such that the rotor speed (or motor torque) and the rotor flux are decoupled. The rotor speed (or motor torque) responses are not affected by abrupt changes in the rotor flux and vice versa. The rotor flux need not be measured but is estimated by the well-known flux simulator. The effect of large variation in the rotor resistance on the control performances is minimized by employing a parameter adaptation method. To illuminate the significance of our work. we present simulation and experimental results as well as mathematical performance analyses.

Keywords