PWM Systems in Power Converters: An Extension of the 'Subharmonic' Method

Autor: Maurizio Franco Mazzucchelli, Giuseppe Sciutto, Luciano Puglisi
Rok vydání: 1981
Předmět:
Zdroj: IEEE Transactions on Industrial Electronics and Control Instrumentation. :315-322
ISSN: 0018-9421
DOI: 10.1109/tieci.1981.351056
Popis: In this paper the extension of the subharmonic method for pulse-width modulation (PWM) systems, in the case in which the ratio between modulating and carrier wave amplitudes can be varied from 0 to ?, is studied in an analytical way. This method allows us to obtain an inverter output waveform variable continuously from a nearly sinusoidal to a square wave and to increase somewhat the amplitude of the fundamental output wave without a significant worsening of the harmonic content, a feature particularly useful for drives with wide speed variations or which need an optimized use of dc power supply.
Databáze: OpenAIRE