A General Space Vector PWM Algorithm for Multilevel Inverters, Including Operation in Overmodulation Range

Author

Gupta, Amit Kumar ; Khambadkone, Ashwin M.

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore

Volume

22

Issue

2

fYear

2007

fDate

3/1/2007 12:00:00 AM

Firstpage

517

Lastpage

526

Abstract

This paper proposes a simple space vector pulsewidth modulation algorithm for a multilevel inverter for operation in the overmodulation range. The proposed scheme easily determines the location of the reference vector and calculates on-times. It uses a simple mapping to generate gating signals for the inverter. A five-level cascaded inverter is used to explain the scheme. The scheme can be easily extended to a n-level inverter. It is applicable to neutral point clamped topology as well. Experimental results are provided for five-level and seven-level cascaded inverters

Keywords

PWM invertors; five-level cascaded inverter; general space vector PWM algorithm; multilevel inverters; neutral point clamped topology; overmodulation range; reference vector; Capacitors; Control systems; Digital signal processing; Power generation; Pulse inverters; Pulse width modulation inverters; Signal mapping; Space vector pulse width modulation; Topology; Voltage control; Cascaded H-bridge inverter; modulation index; multilevel inverter; overmodulation; space vector pulsewidth modulation (SVPWM);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2006.889937

Filename

4118304