Title :
Rotor Shape Optimization for Output Maximization of Permanent-Magnet-Assisted Synchronous Machines
Author :
Yamazaki, Katsumi ; Tamiya, Shuichi ; Utsuno, Kazuya ; Shima, Kazuo ; Fukami, Tadashi ; Sato, Masato
Author_Institution :
Dept. of Electr., Electron. & Comput. Eng., Chiba Inst. of Technol., Narashino, Japan
Abstract :
The output of permanent-magnet-assisted synchronous machines is maximized under constant permanent magnet (PM) volume and machine size by optimizing rotor shape. An automatic shape optimization method combining Rosenbrock´s method and adaptive finite-element method is applied for the optimization. Then, a prototype machine is manufactured due to the result of the optimization in order to confirm the validity. It is clarified that the output of the optimized machine significantly increases without decrease in efficiency, increase in PM volume, and increase in machine size compared with that of the conventional machine.
Keywords :
finite element analysis; permanent magnet machines; rotors; synchronous machines; Rosenbrock´s method; adaptive finite-element method; automatic shape optimization method; constant permanent magnet volume; machine size; permanent-magnet-assisted synchronous machines; rotor shape optimization; Magnetic circuits; Magnetic flux; Magnetic separation; Optimization; Rotors; Saturation magnetization; Shape; Machine windings; magnetic cores; magnetic field; magnetic losses; nonlinear equations; permanent magnets; permanent magnets (PMs); synchronous machines;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2015.2407852
