Akademik Veri Yönetim Sistemi
1st International Conference on Scientific and Academic Research, İstanbul, Türkiye, 10 Aralık 2022, ss.1-5
Detent force is a magnetic problem that occurs in linear permanent magnet synchronous
machines (LPMSM), causing problems such as noise torque fluctuation. The phenomenon that creates this
force is the interaction of the magnetic core and permanent magnets with each other. Unlike radial
permanent magnet synchronous motors, LPMSM have two elements that have a great effect on detent force:
stator tooth and end effect. In order to reduce this force, the magnetic flux distribution occurring in the air
gap is examined. In addition to this method, another method that affects the air gap magnetic flux
distribution is the auxiliary poles located at the ends of the stator. In this study, the detent force reduction
of a designed permanent magnet linear synchronous motor was investigated. While doing this examination,
the magnetic flux density in the air gap is interpreted with the analytical model. In addition, parametric
optimization is made on the length, width and position of the auxiliary pole. Parametric optimization has
been done with the finite element method (FEM), which is a very powerful tool in the analysis phase. FEM
is made by Ansys-Maxwell Software. According to the results from FEM, the analytical method and
optimization on the auxiliary pole may be a usable practical method to reduce the detent force.