NDLI: Approximation of multipulse behaviour with current source inverters

Content Provider	IEEE Xplore Digital Library
Author	Koenig, S. Herold, G.
Copyright Year	2014
Description	Author affiliation: Univ. of Erlangen-Nuremberg, Erlangen, Germany (Koenig, S.; Herold, G.)
Abstract	In comparison to those voltage source inverters (VSI) making only use of series inductors as filter elements current source inverters (CSI) must meet more specific demands regarding their applied switching schemes. The passive network at the terminals of these VSI then shows no resonant behaviour, whereas that of the CSI does. The reason for this are the output capacitors. Without them the CSI would not be able to feed escalating currents into the grid. That is the reason why even CSI multilevel-topologies cannot just so be operated using fundamental frequency switching schemes. Therefore mostly high-frequent switching schemes are research topics. They shall enable the inverter to avoid the resonance area in its generated output spectrum. For example the broadly used space vector pulse width modulation (SVPWM) is not able to immanently avoid low-order harmonics. It arbitrarily causes -5th and +7th order harmonics, even if only in a small degree. This paper therefore wants to point out the possibility to operate several standard CSI topologies in parallel to achieve multipulse behaviour. A 12-pulse behaviour can be reached exactly, whereas 18- or higher-pulse inverters can only be approximated with the demonstrated approach. Those topologies would be able to avoid resonance even when operated with fundamental frequency switching schemes. First the theoretical background will be given using the space phasor theory. Basic statements regarding the necessary topologies are also provided.
Sponsorship	IEEE Power Energy Soc.
Starting Page	259
Ending Page	264
File Size	988104
Page Count	6
File Format	PDF
ISBN	9781479950201
e-ISBN	9781479950225
DOI	10.1109/PQ.2014.6866824
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-11
Publisher Place	Estonia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multi-pulse Current Source Inverter Harmonics Capacitors Resonant frequency Switches Aerospace electronics Harmonic analysis Multilevel Current Source Inverter Inverters Resonance Topology Power Quality
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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