전자공학회논문지 (Journal of the Institute of Electronics and Information Engineers)

  • 제51권10호
  • /
  • Pages.173-179
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  • 2014
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  • 2287-5026(pISSN)
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  • 2288-159X(eISSN)
대한전자공학회 (The Institute of Electronics and Information Engineers)
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매개변수 추정기를 갖는 리니어 컴프레서의 위치센서리스 스트로크 제어기 구현

Implementation of Position Sensorless Stroke Controller of Linear Compressors with Motor Parameter Identification

  • 김광호 (서울시립대학교 전자전기컴퓨터공학부) ;
  • 남재우 (서울시립대학교 전자전기컴퓨터공학부) ;
  • 김규식 (서울시립대학교 전자전기컴퓨터공학부)
  • Kim, Kwang-Ho (Dept. of Electrical and Computer Engineering, University of Seoul) ;
  • Nam, Jae-Woo (Dept. of Electrical and Computer Engineering, University of Seoul) ;
  • Kim, Gyu-Sik (Dept. of Electrical and Computer Engineering, University of Seoul)
  • 투고 : 2014.05.20
  • 심사 : 2014.09.26
  • 발행 : 2014.10.25
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초록

본 논문에서는 리니어 컴프레서 위치센서리스 스트로크 제어기의 성능 향상을 위해 모터 매개변수 추정 시스템을 구현하였다. 리니어 컴프레서가 적용된 냉장고나 에어컨의 냉각능력을 제어하기 위해서는 단위시간동안 피스톤의 움직인 거리, 즉 피스톤의 속도를 제어해야 하는데 이때 리니어 모터의 주파수나 스트로크를 조정함으로써 가능하다. 이때, 주파수를 고정하고 스트로크를 변화시키는 것이 일반적이다. 스트로크, 즉 피스톤의 행정거리를 정확하게 추정하는 것이 리니어 컴프레서의 동특성을 좌우하는데, 본 연구에서는 모터 매개변수를 추정하는 경우와 상수로 놓았을 경우에 대해 필요한 메모리 공간과 스트로크 오차에 대한 실험 결과를 통해 그 장단점을 확인하였다.

In this paper, a motor parameter identification system has been implemented to improve the performance of the position sensorless stroke controller for linear compressors. In order to control the cooling capability of a refrigerator or an air conditioner in which linear compressors are applied, the piston speed should be controlled. The piston speed control can be obtained by adjusting the frequency or the stroke of linear motors. The dynamic performance of linear compressors depends on how accurately the stroke or the piston amplitude is estimated. The merits and demerits of Constant method and PIM (Parameter Identification Method) concerning the needed memory space and the stroke error are discussed and verified via some experimental studies.

키워드

참고문헌

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