Naslov
Spectral calculation of the output voltage of an inverter with bipolar pulse width modulation

Autori
Mrčela, Ivan ; Šunde, Viktor ; Benčić, Zvonko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
EDPE 2009 - Abstracts & CD proceedings Program / Zvonko Benčić - Zagreb : Hrvatsko društvo za komunikacije, računarstvo, elektroniku, mjerenja I automatiku (KoREMA), 2009, 1-11

ISBN
978-953-6037-55-1

Skup
EDPE

Mjesto i datum
Dubrovnik, Hrvatska, 12.10.2009. - 14.10.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
output voltage converter with bipolar pulse width modulation; spectral analysis; Fourier series; carrier signal; reference signal

Sažetak
Converters with pulse width modulation are used for connections between the DC and AC networks, e.g. in uninterrupted power supply systems, AC electromotor drives, for powering induction furnaces, in audio technique. Spectrum of signals sampled by pulse amplitude modulation and output voltage spectrum of the converter with pulse width modulation have similar properties. Spectrum of signals sampled by pulse amplitude modulation contains a harmonic of frequency equal to the frequency of the modulating signal and the harmonics of frequencies equal to the sum of frequency of the modulating signal and multiples of the sampling frequency. The output voltage spectrum of the converter with bipolar pulse width modulation contains harmonic of frequency equal to the frequency of the modulating signal and harmonics of frequencies equal to sum of the frequency of the modulating signal and multiples of the frequency of the carrier signal. It also contains harmonics of frequencies equal to the sum of the multiples of the frequency of the modulating signal and the multiples of the carrier signal. The comparison analysis was carried out for the harmonics of the output voltage of the converter with bipolar pulse width modulation in time domain. The dependency of the amplitudes and frequency spectre on the wave forms of the carrier signal and modulating signal was shown. Similarity of the output voltage spectrum of the converter and signal spectrum sampled by the pulse width modulation was also shown.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA