Title :
A dual inverter for an open end winding induction motor drive without an isolation transformer
Author :
Chowdhury, Shajjad ; Wheeler, Patrick ; Gerada, Chris ; Lopez Arevalo, Saul
Author_Institution :
PEMC Group, Univ. of Nottingham, Nottingham, UK
Abstract :
This paper examines the use of a dual bridge inverter topology for an induction machine drive application. The paper considers the possibility of using a dual bridge inverter with one bridge floating to generate multilevel output voltage waveforms. The charging and discharging of the floating capacitor will be controlled using redundant switching states. The use of this topology can improve system efficiency and converter volume. The paper includes analysis and modulation of the converter topology as well as simulation and practical results showing the converter operation.
Keywords :
bridge circuits; capacitor switching; induction motor drives; invertors; machine windings; power convertors; bridge floating; converter topology analysis; converter topology modulation; converter volume improvement; dual bridge inverter topology; floating capacitor charging control; floating capacitor discharging control; multilevel output voltage waveform generation; open end winding induction motor drive; redundant switching states; system efficiency improvement; Bridge circuits; Capacitors; Inverters; Modulation; Switches; Topology; Windings; Dual inverter; Floating Bridge (FB); Main Bridge (MB); Open End Winding Induction Machine (OEWIM); Space vector;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2015 IEEE
Conference_Location :
Charlotte, NC
DOI :
10.1109/APEC.2015.7104364
