Direct current (DC)-link voltage ripple analysis is essential for determining harmonic noise and for DC-link capacitor design and selection in single-phase pulse-width modulation (PWM) inverters. This paper provides an extensive theoretical analysis of DC-link voltage ripple for full-bridge (H-bridge) inverters, with simulation and experimental verifications, considering a DC source impedance (non-ideal DC voltage source). The DC voltage ripple amplitude is theoretically estimated as a function of the output current, both amplitude and phase angle, and the modulation index. It consists of a switching frequency component and a double-fundamental frequency component (i.e., 100 Hz), thereby both components are considered in the analysis. In particular, the peak-to-peak distribution, maximum amplitude, and root mean square (RMS) values of the voltage switching ripple over the fundamental period are obtained. Based on the DC voltage requirements, simple and effective guidelines for designing DC-link capacitors are obtained.

Vujacic, M., Hammami, M., Srndovic, M., Grandi, G. (2017). Theoretical and experimental investigation of switching ripple in the DC-link voltage of single-phase H-bridge PWM inverters. ENERGIES, 10(8), 1-16 [10.3390/en10081189].

Theoretical and experimental investigation of switching ripple in the DC-link voltage of single-phase H-bridge PWM inverters

Vujacic, Marija;Hammami, Manel;Srndovic, Milan;Grandi, Gabriele
2017

Abstract

Direct current (DC)-link voltage ripple analysis is essential for determining harmonic noise and for DC-link capacitor design and selection in single-phase pulse-width modulation (PWM) inverters. This paper provides an extensive theoretical analysis of DC-link voltage ripple for full-bridge (H-bridge) inverters, with simulation and experimental verifications, considering a DC source impedance (non-ideal DC voltage source). The DC voltage ripple amplitude is theoretically estimated as a function of the output current, both amplitude and phase angle, and the modulation index. It consists of a switching frequency component and a double-fundamental frequency component (i.e., 100 Hz), thereby both components are considered in the analysis. In particular, the peak-to-peak distribution, maximum amplitude, and root mean square (RMS) values of the voltage switching ripple over the fundamental period are obtained. Based on the DC voltage requirements, simple and effective guidelines for designing DC-link capacitors are obtained.
2017
Vujacic, M., Hammami, M., Srndovic, M., Grandi, G. (2017). Theoretical and experimental investigation of switching ripple in the DC-link voltage of single-phase H-bridge PWM inverters. ENERGIES, 10(8), 1-16 [10.3390/en10081189].
Vujacic, Marija; Hammami, Manel; Srndovic, Milan; Grandi, Gabriele
File in questo prodotto:
File Dimensione Formato  
energies-10-01189-v2.pdf

accesso aperto

Descrizione: Energies-H-bridge-2017
Tipo: Versione (PDF) editoriale
Licenza: Creative commons
Dimensione 7.53 MB
Formato Adobe PDF
7.53 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/615250
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 27
  • ???jsp.display-item.citation.isi??? 25
social impact