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http://dx.doi.org/10.5370/KIEE.2017.66.2.447

Reducing the Thrust Ripple Generated by the Stacking of Stator Phase Windings of a Linear Pulse Motor  

Choi, Jaehuyk (Dept. of Electrical Engineering, KONKUK University)
Zun, Chanyong (Dept. of Electrical Engineering, KONKUK University)
Mok, Hyungsoo (Dept. of Electrical Engineering, KONKUK University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.66, no.2, 2017 , pp. 447-452 More about this Journal
Abstract
The stator phase winding of a linear pulse motor, which is a new type of linear motor, is comprised of two phases and is structurally characterized by a stacking method in which the winding of one phase is laid on top of the winding of another phase. Such a structural characteristic induces a difference in the flux linkage resulting from the flux of each stator phase winding in the same condition. The difference in the induced flux linkage acts as a kind of thrust ripple component in terms of the generated thrust. Thus, in order to maintain consistent thrust force, a method is required to solve the problem caused by the structural singularity. Hence, in this study, we present a technique for reducing the thrust force ripple generated by the stacking of the stator phase windings of a linear pulse motor through the generation of a compensating current reference value of the current controller in order to keep the torque constant. The proposed compensating algorithm is validated by simulations and experimental results.
Keywords
Linear pulse motor; Linear motor; Thrust ripple reduction;
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