Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Robust Adaptive Precision Position Control of PMSM

  • Ko Jong-Sun (Department of Electric Electronics and Computer Eng. Dankook University) ;
  • Ko Sung-Hwan (Department of Electric Electronics and Computer Eng. Dankook University) ;
  • Kim Yung-Chan (Department of Electric Electronics and Computer Eng. Dankook University)
  • Published : 2006.10.01
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Abstract

A new control method for precision robust position control of a permanent magnet synchronous motor (PMSM) is presented. In direct drive motor systems, a load torque disturbance directly affects the motor shaft. The application of the load torque observer is published in using a fixed gain to solve this problem. However, the motor flux linkage cannot be determined precisely for a load torque observer. Therefore, an asymptotically stable adaptive observer base on a deadbeat observer is considered to overcome the problems of unknown parameters, torque disturbance and a small chattering effect. To find the critical parameters the system stability analysis is carried out using the Liapunov stability theorem.

Keywords

References

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