The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Performance Improvement of Reduced Order Extended Luenberger Observer(ROELO) based Sensorless Vector Control Fed by Matrix Converter With Non-linearity Modeling

비선형모델을 이용한 matrix convertor로 구동되는 축소차원 확장 루엔버거 관측기기반의 유도전동기 센서리스 벡터제어의 성능개선

  • Lee Kyo-Beum (The Institute of Energy Technology, Aalborg University)
  • Published : 2005.08.01
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Abstract

This paper presents an improved sensorless vector control system for high performance induction motor drives fed by a matrix converter with non-linearity compensation. The nonlinear voltage distortion that is caused by commutation delay and on-state voltage drop in switching devices is corrected by a new matrix converter model. A Reduced Order Extended Luenberger Observer (ROELO) is employed to bring better response in the whole speed operation range and a method to select the observer gain is presented. Experimental results are shown to illustrate the performance of the proposed system.

본 논문에서는 비선형 모델링 기법을 이용하여 matrix convertor로 구동되는 유도전동기 구동장치의 성능개선을 위한 새로운 센서리스 기법을 제안한다. 각 스위치에서 발생하는 전환지연과 스위치 소자의 전압강하등과 같은 matrix converter의 비선형 특성을 모델링하여 보상함으로써 저속영역에서의 속도제어성능을 향상시킨다. 전속도 영역에서의 속도 센서리스 제어성능을 향상시키기 위해 축소차원 확장 루엔버거 관측기를 적용하고, 제안한 관측기 이득의 설정방법을 제안한다. 실험을 통해 제안한 제어 알고리즘의 타당성을 검증한다

Keywords

References

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