NDLI: Analyses for sensorless linear compressor using linear pulse motor

Content Provider	IEEE Xplore Digital Library
Author	Sanada, M. Morimoto, S. Takeda, Y.
Copyright Year	1999
Description	Author affiliation: Dept. of Electr. & Electron. Syst., Osaka Prefecture Univ., Japan (Sanada, M.)
Abstract	A reciprocating compressor with a rotary motor which is used in a refrigerator has low efficiency, since it has large mechanical losses due to the crank mechanism. In a free piston linear compressor with linear motors, the mechanical losses of the crank mechanism can be decreased and system efficiency improved. However, the compressor will fail and the system efficiency will be reduced if the piston position is not controlled successfully. A linear pulse motor (LPM) generally has precise positioning ability in open-loop control without a position sensor. Therefore, the authors expect that a sensorless linear compressor system with an LPM can be realized. In this paper, they examine the piston positioning accuracy and the efficiency of a sensorless linear compressor system with an LPM for various compressor sizes and operating conditions by using analytical and experimental approaches. As a result, the efficiency of the linear compressor system is higher than that of a conventional reciprocating compressor using an induction motor. The system efficiency is significantly improved in the linear compressor with LPM.
Starting Page	2298
Ending Page	2304
File Size	529601
Page Count	7
File Format	PDF
ISBN	078035589X
ISSN	01972618
DOI	10.1109/IAS.1999.799164
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pistons Pulse compression methods Analytical models Inductance Electric breakdown Position control Sensorless control Open loop systems Refrigeration Equations
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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