Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Zooming fuzzy logic controller for sensorless vector control of an induction motor in low speed region under 3Hz

3Hz 이하의 저속영역에서 유도 모터의 센서리스벡터 제어를 위한 줌잉 퍼지논리 제어기

  • Received : 2012.09.05
  • Accepted : 2012.10.16
  • Published : 2012.11.30
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Abstract

A sensorless vector control of an induction motor provides a good performance in the middle and high speed region. However, in the low speed region, it is very difficult to implement the sensorless vector controller because the feeding voltage measured by the motor is very low. In this paper, to improve the performance of a sensorless vector control of an induction motor in the low speed region under 3Hz, we proposed the fuzzy logic controller using the zooming algorithm. To verify the performance of the proposed controller, an experiment has been performed.

유도 모터의 센서리스 벡터 제어시스템은 모터의 시정수를 이용하여 자극의 위치를 추정하는 제어시스템으로 중고속 영역의 경우 제어가 잘 구현된다. 그러나 저속 영역의 경우 모터로부터 얻는 전압 정보가 작아 센서리스 벡터제어 구현이 어렵다. 본 논문에서는 3Hz이하의 저속영역에서 센서리스 벡터제어의 문제점을 개선시키기 위한 줌잉 알고리즘을 이용한 퍼지 논리 제어기를 제시하였으며 제어기 성능이 향상됨을 실험을 통하여 확인하였다.

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References

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