DocumentCode :
2583682
Title :
Common mode voltage elimination PWMs for a dual two-level VSI with single inverter switching
Author :
Kalaiselvi, J. ; Sekhar, K. Rama Chandra ; Srinivas, S.
Author_Institution :
Indian Inst. of Technol., Chennai, India
fYear :
2012
fDate :
28-31 May 2012
Firstpage :
234
Lastpage :
239
Abstract :
This paper discusses two new pulse width modulation (PWM) switching methods for eliminating common mode voltage (CMV) in the dual two-level voltage source inverter (VSI). Both the PWM methods also ensures that the switching power loss is limited to one inverter only at all instants of time. Analytical expressions for switching times of the phase switching devices of the two inverters are developed to force the CMVs in a dual two level VSI configuration to zero which enables the dual-inverter drive to be driven from a single DC power supply. The implementation of the proposed PWM algorithm depends only on the instantaneous magnitudes of the reference space vector on the stationary reference axes. The implementation totally avoids use of sector identification and also the use of look up tables.
Keywords :
PWM invertors; power supplies to apparatus; table lookup; PWM algorithm depends; common mode voltage elimination PWM; dual two-level VSI; dual two-level voltage source inverter; dual-inverter drive; look up tables; phase switching devices; pulse width modulation switching methods; single DC power supply; single inverter switching; switching power loss; switching times; Induction motors; Inverters; Pulse width modulation; Switches; Timing; Vectors; Windings; Common mode voltage; Dual-inverter; Open-end winding induction motor drive; Pulse width modulation; Three-level inverter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics (ISIE), 2012 IEEE International Symposium on
Conference_Location :
Hangzhou
ISSN :
2163-5137
Print_ISBN :
978-1-4673-0159-6
Electronic_ISBN :
2163-5137
Type :
conf
DOI :
10.1109/ISIE.2012.6237090
Filename :
6237090
Link To Document :
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