A PWM scheme for a 3-level inverter cascading two 2-level inverters

Somasekhar, VT and Gopakumar, K and Bauu, MR and Mohapatra, KK and Umanand, L (2002) A PWM scheme for a 3-level inverter cascading two 2-level inverters. In: Journal of Indian Insitute of Science, 82 (1). pp. 23-36.

Preview

PDF Somasekar.pdf Download (1MB)

Abstract

This paper shows that 3-level inversion can be achieved by connecting two 2-level inverters in cascade. Two isolated power supplies with DC link voltages are required for the proposed circuit topology. The voltages constitute half of that of a conventional 3-level inverter topology. Neutral point fluctuation is absent in the proposed scheme when compared to conventional neutral point clamped 3-level inverter. A sine-triangle-based PWM scheme is presented for the proposed topology.

Item Type:	Journal Article
Publication:	Journal of Indian Insitute of Science
Publisher:	Indian Institute of Science
Keywords:	Multilevel inverter;PWM technique
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited:	02 Jun 2004
Last Modified:	19 Sep 2010 04:12
URI:	http://eprints.iisc.ac.in/id/eprint/54

Actions (login required)

View Item