Overmodulation and field weakening in direct torque control of induction motor drives

• Main Authors: Ahmad, M. Z., Nik Idris, Nik Rumzi
• Format: Conference or Workshop Item
• Published: 2006
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/7424/; http://dx.doi.org/10.1109/PECON.2006.346696
• Institution: Universiti Teknologi Malaysia

During transient states, for instance during acceleration and deceleration, the inverter used in an induction motor drive normally operates in overmodulation in order to efficiently utilize the DC-link voltage. Beyond the based-speed, the flux is normally reduced proportionally with speed to extend...