Title :
Calculation of eddy current loss in permanent magnet motor caused by carrier harmonics based on reluctance network analysis
Author :
Yoshida, Yutaka ; Nakamura, Kentaro ; Ichinokura, Osamu
Author_Institution :
Tohoku Univ., Sendai, Japan
Abstract :
This paper presents a method for calculating eddy current loss in a permanent magnet (PM) of a surface permanent magnet (SPM) motor based on electric and magnetic networks. First, a reluctance network analysis (RNA) model of the SPM motor and coupling between the RNA model and electric network model are described. To take account of the carrier harmonics caused by PWM switching, input current waveforms are calculated by a motor drive circuit. Then, the eddy current loss in the magnet and iron loss in the stator core of the SPM motor including carrier harmonics are calculated by the proposed model.
Keywords :
eddy current losses; motor drives; permanent magnet motors; reluctance motor drives; SPM motor; carrier harmonics; eddy current loss; electric networks; iron loss; magnetic networks; motor drive circuit; reluctance network analysis; stator core; surface permanent magnet motor; Eddy currents; Harmonic analysis; Magnetic cores; Magnetic flux; Magnetic losses; Permanent magnet motors; Reluctance motors; Eddy current loss; Efficiency; Magnetic reaction field; Permanent magnet motor; Reluctance network analysis; Simulation;
Conference_Titel :
Power Electronics and Applications (EPE), 2013 15th European Conference on
Conference_Location :
Lille
DOI :
10.1109/EPE.2013.6631849
