Title :
Evaluation of 3rd harmonic component effects in 5-phase synchronous reluctance motor drive using time stepping finite element method
Author :
Xu, Longya ; Fu, W.N.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
It has been reported that interaction of the 3rd harmonic magnetic field with the 3rd harmonic current in a five-phase synchronous reluctance motor (SynRM) can produce additional torque. However, it is still not clear about the SynRM power factor and its impact to the associated power converter because of the 3rd harmonic components. Using time stepping finite element method (FEM), a mathematical model of the SynRM, which allows any desired harmonic component in computation, is presented. Performance of the five-phase SynRM with two rotor structures has been computed. The study finds that the contribution of the 3rd harmonic current to the output torque depends on the rotor structures. It is also shown that the required terminal voltage to regulate the desired current waveform is substantially increased, a result not reported before
Keywords :
finite element analysis; harmonic analysis; machine theory; power conversion harmonics; power convertors; power factor; reluctance motor drives; rotors; torque; 3rd harmonic component effects; 3rd harmonic magnetic field; 5-phase synchronous reluctance motor drive; FEM; current waveform regulation; finite element method; mathematical model; output torque; power converter; power factor; rotor structures; terminal voltage; time stepping finite element method; Circuits; Finite element methods; Magnetic fields; Power system harmonics; Reactive power; Reluctance motors; Rotors; Stators; Torque; Voltage;
Conference_Titel :
Industry Applications Conference, 2000. Conference Record of the 2000 IEEE
Conference_Location :
Rome
Print_ISBN :
0-7803-6401-5
DOI :
10.1109/IAS.2000.881161
