PWM-control of multi-level voltage-source inverters

Author

Veenstra, Martin ; Rufer, Alfred

Author_Institution

Lab. of Ind. Electron., Swiss Federal Inst. of Technol., Lausanne, Switzerland

Volume

3

fYear

2000

fDate

2000

Firstpage

1387

Abstract

Many different PWM-strategies for multi-level inverters exist. Usually the modulator is chosen to match the hardware topology, although this does not always optimizes the harmonic content. The least-harmonics PWM-strategy can be used for all hardware topologies. It behaves like a three-dimensional A/D-converter. A carrier signal improves the output quality of the low-resolution A/D-converter and generates the well-known PWM-signals. Using this description, the state-space averaging procedure becomes very straight-forward and fundamental inverter behavior can be easily modeled and analyzed

Keywords

DC-AC power convertors; PWM invertors; analogue-digital conversion; control system analysis; control system synthesis; harmonic distortion; harmonics suppression; power conversion harmonics; state-space methods; voltage control; PWM control strategies; carrier signal; fundamental inverter behavior; harmonic content optimisation; least-harmonics PWM-strategy; modulator selection; multi-level voltage-source inverters; state-space averaging procedure; three-dimensional A/D-converter; Circuit topology; Hardware; Impedance; Industrial electronics; Laboratories; Pulse width modulation; Pulse width modulation inverters; Signal generators; Switches; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual

Conference_Location

Galway

ISSN

0275-9306

Print_ISBN

0-7803-5692-6

Type

conf

DOI

10.1109/PESC.2000.880511

Filename

880511