Abstract—A mechanical vibration and acoustic noise of
permanent magnet synchronous machines (PMSM) are caused
by the torque ripple due to the non-sinusoidal back
electromotive force (BEMF). The accurate modeling with a
torque ripple is essential to improve the torque characteristics of
PMSM. The torque ripple that appears because of the
interaction between the flux of the PM and the stator teeth. A
general dynamic modeling of PMSM has only a magnetic torque
and a reluctance torque. Therefore, the dynamic modeling of the
PMSM is a need to apply the influence of the harmonics. This
paper proposes an improved modeling of the PMSM considering
the torque ripple characteristics. The theoretical basis of the
torque ripple and individual definition of the model block is
explained. The effectiveness of this proposed modeling is
verified by the simulation and experiment according to the
comparison of the output characteristics between the traditional
and proposed modeling.
Index Terms—Back electromotive force harmonics, fast
fourier transform, permanent magnet synchronous machine,
torque ripple, modeling.
S. A. Kim J. H. Song, and Y. H. Cho are now with Dong-A University,
Busan, Korea (e-mail: y3k9s1@ nate.com, gluttonboy@nate.com,
yhcho@dau.ac.kr).
S. W. Han is now with Busan Transportation Corporation, Busan, Korea
(e-mail: h111641@humetro.busan.kr).
[PDF]
Cite:S. A. Kim, J. H. Song, S. W. Han, and Y. H. Cho, "An Improved Dynamic Modeling of Permanent Magnet Synchronous Machine with Torque Ripple Characteristics," Journal of Clean Energy Technologies vol. 6, no. 2, pp. 117-120, 2018.
