Title :
Influence of Magnetic Saturation on Sensorless Control for Interior Permanent-Magnet Synchronous Motors With Concentrated Windings
Author :
Imai, Nobuyuki ; Morimoto, Shigeo ; Sanada, Masayuki ; Takeda, Yoji
Author_Institution :
Automobile R&D Center, Tochigi
Abstract :
The influence of permanent-magnetic flux variation and magnetic saturation on sensorless control for interior permanent-magnet synchronous motors with concentrated windings is evaluated. By using finite-element method analysis, partial differential values of flux linkage are calculated directly and precisely in a short time. High-speed analysis of a motor voltage equation is realized by interpolating table data of calculated partial differential values. Analyzed results show good correlation with experimental results. The performance of sensorless control is greatly improved using analyzed results, and the influence of permanent-magnetic flux variation is predicted well. The proposed method is very useful for designing control algorithms, considering the influence of permanent-magnetic flux variation and magnetic saturation
Keywords :
control system synthesis; finite element analysis; machine control; machine windings; magnetic flux; partial differential equations; permanent magnet motors; synchronous motors; concentrated windings; finite element method; flux linkage; interior permanent-magnet synchronous motors; magnetic saturation; motor voltage equation; partial differential values; permanent magnetic flux variation; sensorless control; Couplings; Differential equations; Finite element methods; Magnetic analysis; Magnetic flux; Permanent magnet motors; Saturation magnetization; Sensorless control; Synchronous motors; Voltage; Concentrated windings; finite-element method (FEM); interior permanent-magnet synchronous motors (IPMSMs); magnetic saturation; sensorless control;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2006.880853
