Multilevel voltage space phasor generation for an open-end winding induction motor drive / K. Chandra Sekhar and Dr. G. Tulasi Ram Das

Sekhar, K. Chandra and Ram Das, G. Tulasi (Dr.) (2008) Multilevel voltage space phasor generation for an open-end winding induction motor drive / K. Chandra Sekhar and Dr. G. Tulasi Ram Das. Journal of Electrical and Electronic Systems Research (JEESR), 1: 1. pp. 1-10. ISSN 1985-5389

Abstract

A topology for multilevel voltage space phasor generation for an open-end winding induction motor drive is presented in this paper. The open-end winding induction motor is fed from both ends by two 3-level inverters. Each 3-level inverter is formed by cascading two 2-level inverters. This results in voltage space phasor levels equivalent to a conventional 8-level inverter. The proposed 8- level inverter configuration requires lesser number of switching devices as compared to conventional 8-level inverter scheme. Compared to the H-bridge topology, the proposed scheme uses a lower number of power supplies. In the multilevel carrier-based Sinusoidal Pulse Width Modulation (SPWM), used for the proposed drive, a progressive discrete DC bias depending on the speed range is given to the reference wave so that the drive can operate in the i-level modes (i=2, 3, …8) depending on the speed range. The inverter with the higher DC-link voltage is switching less frequently, compared to the inverter with the lower DC-link voltage.

Metadata

Item Type: Article
Creators:
Creators
Email / ID Num.
Sekhar, K. Chandra
cskoritala@hotmail.com
Ram Das, G. Tulasi (Dr.)
das_tulasiram@yahoo.co.in
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions: Universiti Teknologi MARA, Shah Alam
Journal or Publication Title: Journal of Electrical and Electronic Systems Research (JEESR)
UiTM Journal Collections: UiTM Journal > Journal of Electrical and Electronic Systems Research (JEESR)
ISSN: 1985-5389
Volume: 1
Page Range: pp. 1-10
Keywords: Multilevel inversion, open-end winding Induction motor drive
Date: June 2008
URI: https://ir.uitm.edu.my/id/eprint/46933
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