Optimum Design of a Single-Phase Line-Start PM Motor Considering Efficiency, Maximum Torque, and Starting Torque

Author

Baek, Soo-whang ; Kwon, Byung-il

Author_Institution

Dept. of Electron., Electr., Control & Instrum. Eng., Hanyang Univ., Ansan, South Korea

Volume

48

Issue

12

fYear

2012

Firstpage

4850

Lastpage

4859

Abstract

In this paper, an optimum design for a single-phase line start permanent magnet (LSPM) motor with respect to efficiency, maximum torque, and starting torque is proposed. The design variables, objective functions, and constraints are selected for this optimum design, which is divided into three steps. Step I maximizes the rated efficiency while maintaining a balanced operation and minimizing the stator copper loss. Step II utilizes equivalent circuit analysis to consider the efficiency and the maximum torque, while Step III calculates the precise starting torque using finite element (FE) analysis. The validity of the optimum design is verified by comparing the efficiency, maximum torque, and starting torque characteristics of the time-step FE analysis with experimental results.

Keywords

finite element analysis; network analysis; permanent magnet motors; stators; FEA; design variables; equivalent circuit analysis; maximum torque; motor efficiency; objective functions; optimum design; single-phase line-start permanent magnet motor; starting torque; stator copper loss; time-step finite element analysis; Copper; Permanent magnet motors; Rotors; Stator windings; Synchronous motors; Torque; Windings; Balanced operation; efficiency; equivalent circuit; finite element method (FEM); line-start; maximum torque; optimum design; permanent magnet motor (PMM); single-phase; starting torque; stator copper loss; symmetric field; synchronous motor;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2012.2203606

Filename

6213554