IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, VOL. 37, NO. 5, SEPTEMBER/OCTOBER 2001 Gyu-Hong Kang, Jung-Pyo Hong, Member, IEEE, and Gyu-Tak Kim, Member, IEEE Abstract—This paper presents a design and steady-state analysis method of a slotless-type permanent-magnet linear brushlessmotor based on the equivalent magnetizing current method. Thephenomena of the slotless-type motor by the variety of coil shapeunder the constant magnetomotive force has been analyzed and theanalysis process is applied to the design and static-state analysisconsidering commutation thrust ripple. The validity of the proposed technique is confirmed with two-dimensional finite-elementanalysis and experimental results. Index Terms—Commutation thrust ripple, electromagneticcompatibility, slotless-type permanent-magnet linear motor, twodimensional finite element.