Title :
Optimal Rotor Shape Design of LSPM With Efficiency and Power Factor Improvement Using Response Surface Methodology
Author :
Saha, Subrato ; Gui-Dong Choi ; Yun-Hyun Cho
Author_Institution :
Dept. of Electr. Eng., Dong-A Univ., Busan, South Korea
Abstract :
Recently, the line-start permanent magnet motor (LSPM) has been a well-known motor due to its technical advantages in academic and industrial applications. The LSPM combines a permanent magnet (PM) rotor that allows higher motor efficiency during the synchronous operation and an induction motor squirrel cage rotor for starting the motor by connecting it directly to an ac source. In this paper, we will deal with the efficiency and the power factor (PF) improvement of a 3.7 kW, two-pole, three-phase LSPM. The efficiency improvement can be effectively achieved by designing the optimization of the rotor structure using the response surface methodology. The optimized slot shape of PM was selected for the prototype machine, which improves the efficiency and the PF of the LSPM.
Keywords :
optimisation; permanent magnet motors; power factor; response surface methodology; rotors; squirrel cage motors; LSPM optimal rotor shape design; PF improvement; PM rotor; induction motor squirrel cage rotor; line-start permanent magnet motor; power 3.7 kW; power factor improvement; response surface methodology; rotor structure optimization; synchronous operation; two-pole three-phase LSPM; Induction motors; Optimization; Permanent magnet motors; Reactive power; Rotors; Synchronous motors; Torque; Finite element analysis (FEA); Line start permanent magnet motor; Optimization; Response Surface Methodology; finite element analysis; line-start permanent magnet motor (LSPM); optimization; response surface methodology (RSM);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2015.2448754
