Title :
Effects of unbalanced voltage on the steady-state performance of a five-phase induction motor with three different stator winding connections
Author :
Masoud, Mahmoud I. ; Abdel-khalik, A.S. ; Al-Abri, R.S. ; Williams, Barry W.
Author_Institution :
ECE Dept., Sultan Qaboos Univ., Muscat, Oman
Abstract :
This paper investigates the adverse effects of unbalanced phase voltage on the steady-state performance of a five-phase induction motor with three different stator winding connections, namely; star, pentagon, and pentacle. Imbalance may occur due to current interruption of one-phase, two adjacent phases, or two non-adjacent phases. Steady-state models based on symmetrical components theory are derived for the three connections. Voltage unbalance factors are calculated using the IEC standard definition for a three-phase induction motor, which is the negative to positive sequence ratio.
Keywords :
induction motors; stators; IEC standard definition; adverse unbalanced phase voltage effect; current interruption; five-phase induction motor; negative to positive sequence ratio; pentacle connection; pentagon connection; star connection; steady-state performance; three different stator winding connection; unbalanced voltage effect; Computer aided software engineering; IEC; Induction motors; Stator windings; Steady-state; Torque; Windings; International Electrotechnical Commission IEC; Multiphase; five-phase; induction motor; negative sequence; positive sequence; steady-state performance; symmetrical components; unbalanced voltage;
Conference_Titel :
Electrical Machines (ICEM), 2014 International Conference on
Conference_Location :
Berlin
DOI :
10.1109/ICELMACH.2014.6960393
