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리니어 컴프레샤용 LOA의 스트로크 센서 없는 제어 방법
유재유(Jae-Yoo Yoo),이철웅(Chel-Woong Lee),이재춘(Jae-Choon Lee),황민규(Min-Kyu Whang),김정철(Jung-Chul Kim) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.7
In recent the energy efficiency of a refrigerator has been restricted extremely. A compressor consumes a great portion of input power in a refrigerator. So it is necessary to develop a more efficient compressor in these days. The existing reciprocating compressor need to a crank shaft to convert the rotating motion to the straight motion and is not efficient. But the linear compressor using mechanic resonance is efficient but need a drive instead of a crank shaft to control a position accurately. However it is impossible to apply a stroke sensor practically because of the internal circumstance of compressor. In this paper, A new sensorless stroke control method using the current and voltage of linear compressor is proposed.