Title :
Design improvement of synchronous reluctance machines with internal rotor flux barriers for high-speed drives
Author :
Schmidt, Erich ; Brandl, Wolfgang ; Grabner, Christian
Author_Institution :
Inst. of Electr. Drives & Machines, Technische Univ. Wien, Vienna, 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. The parameters of a 5 kW machine with a maximum speed of 8000 RPM for an application in a position-sensorless drive with a wide field-weakening range are evaluated by means of nonlinear finite element analyses. In addition to the normal reluctance machine, the machine with permanent magnets inserted into the rotor flux barriers is analyzed. The comparison of the characteristics of both the conventional reluctance machine and the permanent magnet assisted reluctance machine clearly shows the improved performance due to the interior permanent magnets. The main focus of the presented results is on the implementation of the machine behaviour in the control scheme of the drive
Keywords :
finite element analysis; machine control; magnetic flux; permanent magnet motors; position control; reluctance motor drives; rotors; 5 kW; finite element analysis; high saliency; high-speed drives; interior permanent magnets; internal rotor flux barriers; nonlinear finite element analyses; permanent magnets; position-sensorless drive; position-sensorless drives; reluctance machine; rotor flux barriers; space vector calculus; synchronous machine; synchronous reluctance machines; AC machines; Finite element methods; Magnetic analysis; Magnetic flux; Permanent magnets; Reactive power; Reluctance machines; Stators; Synchronous machines; Torque;
Conference_Titel :
Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual
Conference_Location :
Cairns, Qld.
Print_ISBN :
0-7803-7262-X
DOI :
10.1109/PSEC.2002.1023099
