Medium Voltage Drive for Induction Motors Using Multilevel Octadecagonal Voltage Space Vectors

Mathew, K and Gopakumar, K and Mathew, Jaison and Azeez, Najath Abdul and Dey, Anubrata and Umanand, L (2013) Medium Voltage Drive for Induction Motors Using Multilevel Octadecagonal Voltage Space Vectors. In: IEEE TRANSACTIONS ON POWER ELECTRONICS, 28 (7). pp. 3573-3580.

PDF ieee_tra_pow_ele_28-7_3573_2013.pdf - Published Version Restricted to Registered users only Download (1MB) | Request a copy

Abstract

Multilevel inverters with hexagonal and dodecagonal voltage space vector structures have improved harmonic profile compared to two-level inverters. Further improvement in the quality of the waveform is possible using multilevel octadecagonal (18-sided polygon) voltage space vectors. This paper proposes an inverter circuit topology capable of generating multilevel octadecagonal voltage space vectors, by cascading two asymmetric three-level inverters. By the proper selection of dc-link voltages and the resultant switching states for the inverters, voltage space vectors, whose tips lie on three concentric octadecagons, are obtained. The advantages of octadecagonal voltage space vector-based pulsewidth modulation (PWM) techniques are the complete elimination of fifth, seventh, eleventh, and thirteenth harmonics in phase voltages and the extension of linear modulation range. In this paper, a simple PWM timing calculation method is also proposed. Experimental results have been presented in this paper to validate the proposed concept.

Item Type:	Journal Article
Publication:	IEEE TRANSACTIONS ON POWER ELECTRONICS
Publisher:	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Additional Information:	Copyright for this article belongs to IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, USA
Keywords:	Induction motor drive;multilevel inverter;octadecagonal space vectors;space vector pulsewidth modulation (PWM)
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited:	14 Mar 2013 09:45
Last Modified:	14 Mar 2013 09:45
URI:	http://eprints.iisc.ac.in/id/eprint/45984

Actions (login required)

View Item