Performance evaluation of half-bridge cascaded multilevel converters operated with multicarrier sinusoidal PWM techniques

Author

Konstantinou, Georgios S. ; Agelidis, Vassilios G.

Author_Institution

Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW, Australia

fYear

2009

fDate

25-27 May 2009

Firstpage

3399

Lastpage

3404

Abstract

High-power high-voltage power electronics systems with fully-controlled semiconductors can benefit from the development of modular solutions based on voltage-sourced building blocks. This paper offers a performance comparison of various multicarrier sinusoidal pulse width modulation (PWM) techniques for the control of the modular multilevel converter (MMC) based on the half-bridge capacitor cell. It is found that the PWM method can significantly affect the ripple of the capacitor free DC-bus, hence the selection of the carrier frequency and the multi-carrier PWM method is an important design question for the MMC topology. Simulation results for a three-phase rectifier-inverter system generated with the PSCAD/EMTDC software package are provided to support the theoretical considerations.

Keywords

PWM power convertors; bridge circuits; cascade networks; MMC control topology; PSCAD-EMTDC software package; capacitor free DC-bus; fully-controlled semiconductor; half-bridge cascaded multilevel converter; high-power high-voltage power electronics system; multicarrier sinusoidal PWM technique; performance evaluation; three-phase rectifier-inverter system; Capacitors; EMTDC; Frequency; PSCAD; Power electronics; Pulse width modulation; Pulse width modulation converters; Software packages; Topology; Voltage; Modular converter; multilevel converter; sinusoidal pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-2799-4

Electronic_ISBN

978-1-4244-2800-7

Type

conf

DOI

10.1109/ICIEA.2009.5138833

Filename

5138833