Study on vibration reduction of a rolling piston-type compressor by motor torque control. 2nd Report, Experimental study of control effects.

Abstract

In the previous paper, the authors proposed a torque control method using a microcomputer control that would be effective to reduce the vibration of a rolling piston-type compressor for a room air conditioner. This paper deals with the experimental results of the torque control method. Two types of feedback forms, "rotational speed feedback" and "rotational acceleration feedback", were compared for stability and transient response. It was proven that both feedback forms were effective in reducing rotational variation and vibration of the compressor chamber. However, "rotational speed feedback" needed complex compensations for stable control and response was slower than that of "rotational acceleration feedback".