A study of high torque Surface-Mounted Permanent Magnet Synchronous Motor by maximum utilization of the magnet flux

M. Miyamasu, K. Akatsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationICEMS 2012 - Proceedings
Subtitle of host publication15th International Conference on Electrical Machines and Systems
Publication statusPublished - 2012 Dec 1
Event15th International Conference on Electrical Machines and Systems, ICEMS 2012 - Sapporo, Japan
Duration: 2012 Oct 212012 Oct 24

Publication series

NameICEMS 2012 - Proceedings: 15th International Conference on Electrical Machines and Systems

Conference

Conference15th International Conference on Electrical Machines and Systems, ICEMS 2012
CountryJapan
CitySapporo
Period12/10/2112/10/24

Keywords

  • Full-pitch winding
  • Six-leg inverter
  • Square current excitation
  • Surface-mounted Permanent Magnet Synchronous Motor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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