Title :
Comparative finite element analysis of synchronous reluctance machines with internal rotor flux barriers
Author :
Schmidt, Erich ; Brandl, Wolfgang
Author_Institution :
Inst. of Electr. Drives & Machines, Wien Univ. of Technol., Austria
Abstract :
Synchronous reluctance machines with internal rotor flux barriers can be designed to have a high saliency. Permanent magnets inserted into the rotor flux barriers considerably increase the effective saliency. In comparison with the conventional synchronous reluctance machine, this permanent magnet assisted synchronous reluctance machine offers better torque capacity and power factors. A nonlinear finite element analysis is used to evaluate the parameters of a 5 kW machine with a field-weakening range of 5.33:1. The characteristics of both the conventional reluctance machine and the permanent magnet assisted reluctance machine are compared. The investigation of the complex stator inductance shows the high suitability of the concerned machine for an application in position-sensorless drives
Keywords :
finite element analysis; magnetic flux; permanent magnet machines; permanent magnets; power factor; reluctance machines; rotors; stators; 5 kW; complex stator inductance; field-weakening range; finite element analysis; internal rotor flux barriers; nonlinear finite element analysis; permanent magnet assistance; position-sensorless drives; power factor; synchronous reluctance machines; torque capacity; Finite element methods; Geometry; Magnetic analysis; Magnetic anisotropy; Magnetic flux; Permanent magnets; Reactive power; Reluctance machines; Stators; Torque;
Conference_Titel :
Electric Machines and Drives Conference, 2001. IEMDC 2001. IEEE International
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-7091-0
DOI :
10.1109/IEMDC.2001.939416
