Open AccessTheoretical and Experimental Investigation of the Supply Voltage Unbalance Effects on Squirrel Cage Induction Motors
Author(s) -
Fatma Zohra Dekhandji,
Hamid Bentarzi
Publication year - 2019
Publication title -
algerian journal of signals and systems
Language(s) - English
Resource type - Journals
eISSN - 2676-1548
pISSN - 2543-3792
DOI - 10.51485/ajss.v4i2.82
Subject(s) - derating , squirrel cage rotor , induction motor , stator , control theory (sociology) , voltage , engineering , torque , rotor (electric) , power factor , electrical engineering , physics , computer science , control (management) , artificial intelligence , thermodynamics
Voltage unbalance is one of the power quality problems causing a lot of ill effects on induction motors. These are namely: Overheating, line-current unbalance, derating, torque pulsation, and inefficiency. The objective of the present work is to assess and quantify the effects of voltage unbalance on induction motors using both theory and experimentation. The analytical study is performed using the complex voltage unbalance factor model of this problem. The work deals specifically with the influence of the variations in the complex angle of the voltage unbalance factor on the stator and rotor currents, stator and rotor copper losses and total losses. The experimental investigation is carried out using an apparatus that measures currents, torque and power losses.