Hosseinzadeh, M., Sadoughi, A.  (2015). Classical Direct Torque and Flux Control (DTFC) for Line-Start Permanent Magnet Synchronous and Its Comparison with Induction Motors During Voltage Sag Conditions. *Nashriyyah -i Muhandisi -i Barq va Muhandisi -i Kampyutar -i Iran*, 13(1), 25-35.