Flexible PWM Scheme of Voltage Synchronization for Three-Level Cascaded Converter
Închide
Articolul precedent
Articolul urmator
348 1
Ultima descărcare din IBN:
2020-07-06 18:35
Căutarea după subiecte
similare conform CZU
621.314.54 (1)
Electrotehnică (790)
SM ISO690:2012
OLESCHUK, Valentin; ERMURATSKII, Vladimir. Flexible PWM Scheme of Voltage Synchronization for Three-Level Cascaded Converter. In: Sielmen, october 2015. Ediția 10-a, 6-9 octombrie 2015, Craiova. Craiova, România: Editura ALMA, 2015, pp. 465-470. ISBN 978-606-567-284-0.
EXPORT metadate:
Google Scholar
Crossref
CERIF

DataCite
Dublin Core
Sielmen, october 2015
Ediția 10-a, 2015
Conferința "Sielmen"
Craiova, Romania, 6-9 octombrie 2015

Flexible PWM Scheme of Voltage Synchronization for Three-Level Cascaded Converter


CZU: 621.314.54
Pag. 465-470

Oleschuk Valentin, Ermuratskii Vladimir
 
Institute of Power Engineering of ASM
 
Disponibil în IBN: 6 august 2018


Rezumat

This paper presents results of dissemination of flexible PWM scheme for control and determination of dwell times of synchronized cascaded H-bridge drive inverter with special switching sequences. In comparison with known techniques of synchronous PWM for three-level inverters (with a full set of voltage vectors), the proposed approach assures voltage synchronization and symmetry and for fractional ratios between the switching and fundamental frequencies of inverters. The used PWM scheme insures in this case minimum number of switchings of converter and minimal switching losses in drive systems on the base of H-bridge inverters. The proposed approach ensures also smooth automatic transition from one control regime to another (from regime of low fundamental frequencies to regime of medium fundamental frequencies, and then transition to regime of higher fundamental frequencies including overmodulation control zone). Simulations validate performance of cascaded inverter with basic continuous and discontinuous versions of this technique of modulation.

Cuvinte-cheie
modulation strategy, spectral analysis,

cascaded inverter, symmetrical voltage waveforms