NDLI: Impact of a non-conventional PWM strategy on the DC link film capacitor sizing

Content Provider	IEEE Xplore Digital Library
Author	Rouhana, N. Patin, N. Friedrich, G. Negre, E. Loudot, S.
Copyright Year	2015
Description	Author affiliation: Centre de Rech. Royallieu, Univ. de Technol. de Compiegne, Compiegne, France (Rouhana, N.; Patin, N.; Friedrich, G.) \|\| Renault Technocentre, Guyancourt, France (Negre, E.; Loudot, S.)
Abstract	In this paper, an analysis of the DC-link voltage ripple for classic and non-conventional Pulse Width Modulation (PWM) strategies such as the Unified-Double Carrier PWM (Uni-DC PWM) is derived. A focus will be held on the case where Film capacitors are applied. The latter have a very low Equivalent Series Resistance (ESR) which is responsible of losses in real capacitors (especially Electrolytic ones) hence, in the frequency range where the PWM harmonics do exist, a Film capacitor can be considered as having a pure capacitive impedance where the DC-link voltage ripple becomes highly dependent on the harmonic frequency distribution. Thus, it is important to determine the exact harmonic components needed for an analysis to be effective and this is where the double Fourier integral provides a mathematically rigorous application for studying PWM characteristics in the frequency domain. Despite the fact that the main objective of the Uni-DC PWM is to reduce the capacitor's RMS current, results show a reverse impact on the DC-link voltage ripple when a Film capacitor is used.
Starting Page	1
Ending Page	6
File Size	532175
Page Count	6
File Format	PDF
e-ISBN	9789075815221
DOI	10.1109/EPE.2015.7309291
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-08
Publisher Place	Switzerland
Access Restriction	Subscribed
Rights Holder	EPE Association and IEEE
Subject Keyword	Space vector pulse width modulation DC-link current spectra Double Fourier Integral Films Film Capacitor Capacitors Pulse Width Modulation Harmonic analysis DC-link voltage ripple Voltage Source Inverter Power harmonic filters
Content Type	Text
Resource Type	Article

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