Control Strategies of a Hybrid Multilevel Converter for Expanding Adjustable Output Voltage Range

Author

Fukuda, Shoji ; Yoshida, Takatsugu ; Ueda, Shigeta

Author_Institution

Dept. of Electr. Eng., Hokkaido Univ., Sapporo

Volume

45

Issue

2

fYear

2009

Firstpage

827

Lastpage

835

Abstract

This paper proposes a new arrangement and new control strategies for a hybrid multilevel converter, aiming at a high-power high-efficiency converter system being free from harmonic distortion. The strategies enable one to expand the adjustable output voltage range up to 100% by keeping a very low harmonic distortion of the output voltage. The triangular-carrier-based pulsewidth modulation (PWM) and space-vector-based PWM strategies are applied to voltage control. The effectiveness is verified by simulation and experimental results. The proposed hybrid multilevel converter is applicable to medium-voltage networks as a high-power grid-interface converter.

Keywords

PWM power convertors; harmonic distortion; power grids; voltage control; PWM; adjustable output voltage range; harmonic distortion; high-power grid-interface converter; high-power high-efficiency converter system; hybrid multilevel converter; space-vector-based PWM strategies; triangular-carrier-based pulsewidth modulation; Control systems; Harmonic distortion; Insulated gate bipolar transistors; Medium voltage; Semiconductor diodes; Space vector pulse width modulation; Thyristors; Topology; Transformers; Voltage control; Harmonic distortion; high-power converter; hybrid converter; multilevel converter;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2009.2013604

Filename

4802281