Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2203606
