TY - GEN
T1 - A study of high torque Surface-Mounted Permanent Magnet Synchronous Motor by maximum utilization of the magnet flux
AU - Miyamasu, M.
AU - Akatsu, K.
PY - 2012/12/1
Y1 - 2012/12/1
N2 - This paper describes about a study of a Surface-Mounted Permanent Magnet Synchronous Motor (SPMSM) with an optimal square wave current excitation which intends to improve an output torque. Although the SPMSM has a lot of harmonic flux in an air gap, usually a sinusoidal current drive uses only its fundamental component, or harmonics are reduced by a skew and so on, the output torque is not optimized. This paper investigates an optimal drive scheme in order to obtain the maximum output torque by using these harmonics. This scheme requires a full-pitch winding SPMSM and a square wave current excitation using a six-leg inverter to utilize all the components of the magnet flux in the air gap. We compare the output torque of the optimal harmonics current excitation and the sinusoidal wave current excitation under a condition of the equal current RMS.
AB - This paper describes about a study of a Surface-Mounted Permanent Magnet Synchronous Motor (SPMSM) with an optimal square wave current excitation which intends to improve an output torque. Although the SPMSM has a lot of harmonic flux in an air gap, usually a sinusoidal current drive uses only its fundamental component, or harmonics are reduced by a skew and so on, the output torque is not optimized. This paper investigates an optimal drive scheme in order to obtain the maximum output torque by using these harmonics. This scheme requires a full-pitch winding SPMSM and a square wave current excitation using a six-leg inverter to utilize all the components of the magnet flux in the air gap. We compare the output torque of the optimal harmonics current excitation and the sinusoidal wave current excitation under a condition of the equal current RMS.
KW - Full-pitch winding
KW - Six-leg inverter
KW - Square current excitation
KW - Surface-mounted Permanent Magnet Synchronous Motor
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M3 - Conference contribution
AN - SCOPUS:84873441562
SN - 9784886860774
T3 - ICEMS 2012 - Proceedings: 15th International Conference on Electrical Machines and Systems
BT - ICEMS 2012 - Proceedings
T2 - 15th International Conference on Electrical Machines and Systems, ICEMS 2012
Y2 - 21 October 2012 through 24 October 2012
ER -