A new design technique based on a suitable choice of rotor geometrical parameters to maximize torque and power factor in synchronous reluctance motors. I. Theory

Author

Chabu, Ivan Eduardo ; Silva, Viviane Cristine ; Cardoso, Jose Roberto ; Nabeta, Silvio I. ; Foggia, Albert

Author_Institution

LMAG, Sao Paulo Univ., Brazil

fYear

1997

Abstract

The influence of rotor geometry of synchronous reluctance motors (SRM) on the x_d/x_q ratio, on electromagnetic torque and on iron losses is studied. Both the air-gap and rotor poles are are taken into account as parameters. A new theoretical approach is developed which neglects saturation effects. In a companion paper, a complete finite-element analysis of a particular SRM is carried out, followed by a comparison with results obtained by tests performed in a prototype machine, which was constructed in order to validate the methodology proposed in this paper

Keywords

geometry; machine theory; optimisation; power factor; reluctance motors; rotors; torque; air-gap; design technique; electromagnetic torque; geometrical parameters selection; iron losses; power factor optimisation; rotor geometry; rotor poles; synchronous reluctance motors; torque optimisation; x_d/x_q ratio; Air gaps; Finite element methods; Geometry; Iron; Performance analysis; Reluctance machines; Reluctance motors; Rotors; Testing; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines and Drives Conference Record, 1997. IEEE International

Conference_Location

Milwaukee, WI

Print_ISBN

0-7803-3946-0

Type

conf

DOI

10.1109/IEMDC.1997.604209

Filename

604209