Title :
A space-vector modulation scheme for a four-level dual inverter fed open-end winding induction motor drive
Author :
Reddy, B.V. ; Somasekhar, V.T.
Author_Institution :
Electr. Eng. Dept., Vaagdevi Coll. of Eng., Warangal, India
Abstract :
Four-level inversion can be achieved with dual two-level inverters with asymmetrical DC-link voltages in the ratio of 2:1 feeding an open-end winding induction motor. This inverter scheme produces 64 space-vector combinations distributed over 37 space-vector locations. Isolated DC power supplies are employed to avoid the zero-sequence currents. In this paper, a space vector PWM switching scheme for the dual inverter fed open-end winding induction motor drive is employed. Instantaneous three phase reference voltages are required to implement this PWM, which does not requires any sector identification.
Keywords :
PWM invertors; induction motor drives; power supplies to apparatus; DC power supply; asymmetrical DC link voltage; four level dual inverter; open end winding induction motor drive; open-end winding induction motor; space vector PWM switching scheme; space vector modulation; Induction motor drives; Inverters; Pulse width modulation; Switches; Vectors; Windings; Four-level inverter; Open-end winding induction motor drive; Space vector modulation;
Conference_Titel :
Power Electronics (IICPE), 2012 IEEE 5th India International Conference on
Conference_Location :
Delhi
Print_ISBN :
978-1-4673-0931-8
DOI :
10.1109/IICPE.2012.6450397