Nine level inverter for open end induction motor with eight switches per phase

Abhijit Kshirsagar, R. Sudharshan Kaarthik, L. Umanand, K. Gopakumar, Kaushik Rajashekara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

This paper presents a nine level inverter topology with only eight switches per phase, for driving an induction motor with open end stator winding. The topology consists of two three-level, three phase inverters connected to the two ends of the induction motor. With asymmetric DC link voltages in a ratio of 3:1, an effective nine level space vector structure is realised. Modulation is done using level shifted carriers, which requires only sampled values of the three phase voltage references. Switching state redundancies are used effectively to ensure that both inverters supply real power to the load over the entire modulation range preventing overcharging of the DC links. In case of a fault in one of the inverters, the faulty inverter can by bypassed and operation is possible using the other inverter. The topology was simulated using MATLAB/Simulink and experimentally verified over the entire linear modulation range. Experimental results validating the proposed scheme are included.

Original languageEnglish (US)
Title of host publicationIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1097-1102
Number of pages6
ISBN (Electronic)9781479917624
DOIs
StatePublished - Jan 1 2015
Event41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 - Yokohama, Japan
Duration: Nov 9 2015Nov 12 2015

Other

Other41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
CountryJapan
CityYokohama
Period11/9/1511/12/15

Fingerprint Dive into the research topics of 'Nine level inverter for open end induction motor with eight switches per phase'. Together they form a unique fingerprint.

Cite this