Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 1998.10a
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- Pages.23-28
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- 1998
DECOUPLING CONTROL OF AN INDUCTION MOTOR WITH RECURSIVE ADAPTATION OF ROTOR RESISTANCE
- Kim, Gyu-Sik (University of Seoul) ;
- Kim, Jae-Yoon (University of Seoul) ;
- Yim, Chung-Hyuk (Seoul National Polytechnic University) ;
- Kim, Joohn-Sheok (University of Inchon)
- Published : 1998.10.01
Abstract
We propose a nonlinear feedback controller that can control the induction motors with high dynamic performance by means of decoupling of motor speed and rotor flux. The nonlinear feedback controller needs the information on some motor parameters. Among them, rotor resistance varies greatly with machine temperature. A new recursive adaptation algorithm for rotor resistance which can be applied to our nonlinear feedback controller is also presented in this paper. The recursive adaptation algorithm makes the estimated value of rotor resistance track its real value. Some simulation results show that the adaptation algorithm for rotor resistance is robust against the variation of stator resistance and mutual inductance. In addition, it is computationally simple and has small estimation errors. To demonstrate the practical significance of our results, we present some experimental results.
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