Universiti Teknologi Malaysia Institutional Repository

A new pulse-width modulation (PWM) scheme for modular structured multilevel voltage source inverter

Aziz, J. A. and Salam, Zainal (2004) A new pulse-width modulation (PWM) scheme for modular structured multilevel voltage source inverter. International Journal of Electronics, 9 (4). pp. 211-226. ISSN 0020-7217

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Official URL: http://dx.doi.org/10.1080/00207210410001675644

Abstract

This work proposes a new switching scheme for a particular multilevel topology, known as the modular structured multilevel inverter (MSMI). The proposed scheme is based on symmetric regular sampled unipolar PWM, with multiple modulating waveforms and a single carrier. Mathematical equations that define the PWM switching instants are derived. These equations are suitable for digital implementation. An experimental five-level MSMI test-rig is built to implement the proposed algorithm. The derived equations are implemented by a low-cost fixed-point microcontroller. Several tests to quantify the performance of the inverter under the proposed modulation scheme are carried out.

Item Type:Article
Uncontrolled Keywords:switching scheme, multilevel topology, modular structured multilevel inverter (MSMI), unipolar PWM
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:9844
Deposited By: Ms Zalinda Shuratman
Deposited On:28 Apr 2010 04:27
Last Modified:02 Jun 2010 02:04

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