The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON SYSTEMS
Transactions ID Number: 31-408
Full Name: Hýdýr Selcuk Nogay
Position: Doctor (Researcher)
Age: ON
Sex: Male
Address: Marmara University, Gostepe Campus, Faculty of Technical Education, Electrical Education Departmant, 34722- Istanbul - Kadýkoy- Turkey
Country: TURKEY
Tel: +902163365770
Tel prefix:
Fax: +902163305182
E-mail address: selcuknogay@marmara.edu.tr
Other E-mails: hidirselcuknogay@gmail.com
Title of the Paper: Voltage and Current Harmonic Variations in Three-phase Induction Motors with Different Stator Coil Pitches
Authors as they appear in the Paper: H. Selcuk Nogay , Yasar Birbir
Email addresses of all the authors: selcuknogay@marmara.edu.tr, ybirbir@marmara.edu.tr
Number of paper pages: 11
Abstract: In this study, firstly a sinusoidal pulse-width modulation (SPWM) inverter feeding five different chorded three-phase induction motors were tested for low-order odd harmonic voltage component and efficiency at different loads. Secondly the motors fed by sine voltage again were tested for low – order odd harmonic voltage and current component and efficiency at different loads. In both two situations; total harmonic distortion (THD) due to 3rd, 5th, 7th, 9th, 11th and 13th harmonics were less in a motor with (1-7) 120o coil pitch at over load. Particular harmonic order for each coil pitch was suppressed and the increasing quantity of efficiency in a motor with (1-6)1000 coil pitch was increased by 4, 92 % fed by PWM and 8, 86 % fed by sine voltage. The full pitch motor with (1-10) 180o coil pitch has more harmonics than other motors.
Keywords: Coil pitch; Chording; Harmonics; Stator winding
EXTENSION of the file: .doc
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