Comparison and Inspection of Harmonic Effects in PMSM and Induction Motors
Seyed Zeinolabedin Moussavi1, Aliakbar Rahmani2
1S. Z. Moussavi, Faculty Member, Electrical & Computer Engineering Faculty, Shahid Rajaee Teacher Training University, Tehran, Iran.
2A. A. Rahmani MSc Student, Electrical & Computer Engineering Faculty, Shahid Rajaee Teacher Training University,Tehran, Iran.

Manuscript received on February 09, 2012. | Revised Manuscript received on February 18, 2012. | Manuscript published on March 05, 2012. | PP: 106-110 | Volume-2 Issue-1, March 2012. | Retrieval Number: A0390012111/2012©BEIESP
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Abstract: Regarding to different kinds of load, domestic electrical appliances, increasing application of further electrical equipment’s which leads to consumption of electric energy, destructive electromagnetic sources EMI added. Recognizing this source and it’s side effects on performance of electronic and electrical equipment that could be in form of conductive, inductive and radiated is outstanding. An ideal electric machine is a system that electric energy is applied in pure sinusoid waveform flow has no loss in the heat form. However in practice, elements and equipment’s with nonlinear characteristic, specially power electronic equipment’s and storage elements of energy could arise higher frequency harmonics causing losses in the form of heat. Numerous electrical motors used in industrial manufacturing companies cause notably heat losses especially then induction motors. The fact that complexity of interconnection between stator and rotor can consider as source of higher harmonics and energy losses, attention is paying from induction motors into Permanent Magnet Synchronous Motors (PMSM). The paper, make a comparison between PMSM and widely used induction motors from the view point of higher frequency harmonics and shows the advantage of PMSM in this regards.
Keywords: Torque Control, Induction Motors, Energy Consumption, Harmonic Sources, Permanent Magnetic Synchronous Motors (PMSM), Ripple.