An improved PWM for a dual two-level inverter fed open-end winding induction motor drive

K, Ramachandrasekhar and S, Mohan and S, Srinivas (2010) An improved PWM for a dual two-level inverter fed open-end winding induction motor drive. In: 19th International Conference on Electrical Machines, 6-8 September, 2010, Rome, Italy.

Full text not available from this repository. (Request a copy)

Abstract

Three-level voltage space vector can be synthesized using a dual two-level inverter scheme employing open-end winding induction motor drive. Owing to the advantages this configuration offers over the other popular three-level inverter configurations, many PWM control strategies have been proposed. Towards this end, alternate subhexagonal center PWM switching scheme was presented recently that employs each of the two-level inverters as clamping and switching inverters. In this paper, an improved PWM switching scheme is proposed that is aimed at further reducing the number of switching commutations in the dualinverter. It is attempted to reduce the switching commutations in the dual-inverter especially during the changeover of inverters roles from clamping to switching inverter and vice versa in the entire cycle of the supply. A significant 50% reduction in the number of switching commutations in the dual-inverter is achieved with the use of the proposed PWM scheme. The implementation of the PWM scheme neither requires any look-up tables nor sector identification while it only requires the magnitudes of instantaneous three phase reference voltages. The improved PWM scheme is first simulated and verified experimentally by driving the dual-inverter fed open-end winding induction motor by employing V/f control.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Dual two-level inverter; Dual-inverter; Multi-level inverter; Open-end winding induction motor; Space vector modulation; Dual two-level inverter; Dual-inverter; Multilevel inverter; Open-end windings; Space Vector Modulation
Subjects: Others > Electricity
Divisions: Department of Electrical Engineering
Depositing User: Mr. Siva Shankar K
Date Deposited: 13 Oct 2014 06:59
Last Modified: 30 Mar 2015 10:54
URI: http://raiith.iith.ac.in/id/eprint/184
Publisher URL: http://dx.doi.org/10.1109/ICELMACH.2010.5607866
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 184 Statistics for this ePrint Item