Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Novel MRAS Based Sensorless Speed Control of Induction Motor

새로운 MRAS에 의한 유도전동기의 센서리스 속도제어

  • 김덕기 (한국해양대학교 대학원 기관공학과(석사과정)) ;
  • 김종수 (한국해양대학교 대학원 기관공학과(박사과정)) ;
  • 김성환 (한국해양대학교 기관시스템공학부)
  • Published : 2000.11.01
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Abstract

In this industrial induction motor speed and torque controlled drive system, the closed loop control usually requires the measurement of speed or position of amotor. However a sensorless drive of an induction motor has several advantages ; low cost and mechanical simplicity. Thus this paper investigates a field oriented control method without speed and flux sensors. The proposed control strategy is based on the Model Reference Adaptive System(MRAS) using a new flux estimator which replaces integrators with two lag circuits as the reference model. This algorithm may overcome several shortages of conventional MRAS such as integrator problems, small EMF at low speed. The simulation and experimental results indicate good speed responses.

Keywords

References

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