Frequency-domain modeling of harmonic interactions in pulse-width modulated voltage-source inverter drives

Publikation: Qualifikations-/Studienabschlussarbeit › Dissertation

Autoren

  • Malte John

Organisationseinheiten

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Details

OriginalspracheEnglisch
QualifikationDoktor der Ingenieurwissenschaften
Gradverleihende Hochschule
Betreut von
  • Axel Mertens, Betreuer*in
Datum der Verleihung des Grades14 März 2019
ErscheinungsortHannover
PublikationsstatusVeröffentlicht - 2019

Abstract

Die in dieser Arbeit vorgestellte Methodik ermöglicht die Berechnung der Strom- und Spannungsspektren eines Antriebssystems für den eingeschwungenen Zustand unter Berücksichtigung von Wechselwirkungen der Systemkomponenten. Die Darstellung der Signale mittels ihrer Fourier-Koeffizienten bildet die mathematische Grundlage. Die Beschreibung ihrer Systemverknüpfung erfolgt als algebraische Gleichungen, welche im Allgemeinen nichtlinear sind und die Verkopplung der spektralen Komponenten berücksichtigen. Dies ermöglicht die Beachtung der Interaktionen zwischen Wechselrichter, seiner Speisung und Last sowie seiner Regelung und Pulsdauermodulation. Dabei wird die Zeitkontinuität der physikalischen Größen, die Zeitdiskretisierung der Regelung und der entsprechende Umwandlungsprozess einbezogen. Damit trägt diese Arbeit zu einem tieferen Verständnis der Wechselwirkungen innerhalb eines Umrichtersystems bei und ermöglicht die Berechnung der entstehenden Spektren unter Berücksichtigung der Interaktionen, welche in gängigen Frequenzbereichsmodellen vernachlässigt werden.

Zitieren

Frequency-domain modeling of harmonic interactions in pulse-width modulated voltage-source inverter drives. / John, Malte.
Hannover, 2019. 184 S.

Publikation: Qualifikations-/Studienabschlussarbeit › Dissertation

John, M 2019, 'Frequency-domain modeling of harmonic interactions in pulse-width modulated voltage-source inverter drives', Doktor der Ingenieurwissenschaften, Gottfried Wilhelm Leibniz Universität Hannover, Hannover. https://doi.org/10.15488/4705
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title = "Frequency-domain modeling of harmonic interactions in pulse-width modulated voltage-source inverter drives",
abstract = "The method presented in this thesis allows for the calculation of the current and voltage spectra of a drive system for the steady state, while considering the influence of interactions between the system components. The signals are represented by their Fourier coefficients. Their relationships within the system are described by algebraic equations, which are generally nonlinear and they incorporate the coupling of the harmonic components. This ensures the consideration of interactions between the inverter, its feeding source and load, as well as its closed-loop control and pulse-width modulation. The models include the time-continuity of the physical quantities, the time-discretization of the control signals, and their respective conversion processes. As a result, this thesis provides a deeper understanding of the dependencies within a converter system and enables a calculation of the resulting spectra taking into account the aforementioned interactions, which are neglected in established frequency-domain models.",
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