Iron Loss Analysis of Linear Motor for Linear Compressor

A refrigerator consumes 20~40% of the total electric energy in a house. And most of the electricity in the refrigerator is consumed for operating the compressor. Therefore, developing a high efficiency compressor is necessary to increase the energy efficiency. To increase the efficiency of the linear motor, a new linear motor design with a reduced electrical loss is needed. Also, the loss analysis is preceded to design the linear motor having higher efficiency. In this paper, the iron loss analysis is implemented by using the analytical and numerical methods. The iron loss analysis of the linear motor is performed by using ANSYS, the commercial FEA tool and tested iron loss curve made by the manufacturer. The proposed methods are applied to the iron loss analysis of the linear motor. For the validation of the iron loss analysis result, the experiment measuring the iron loss of the linear motor is performed and this result is compared with that of ion loss analysis result.