A New Control Method for Minimizing the DCLink Capacitor Current of HEV Inverter Systems

verfasst von

Christian Sommer, Arvid Merkert, Axel Mertens

Abstract

This paper presents a new control method for boost DC/DC converters combined with voltage source inverter systems to minimize the DC-link capacitor-current RMS value. The examined converter system consists of a multi-phase boost converter and a three-phase inverter with common DC-link capacitor. A general analytical expression for the DC-link capacitor-current RMS value is derived, which allows to optimize the switching pattern for the boost converter phases and the DC-link voltage level. Measurements from a laboratory setup verify the analytical equations and reproduce the calculated values of the RMS current. Since the DC-link capacitor RMS current stress determines the capacitor size and is independent of the switching frequency, this work contributes to a further volume reduction of passive components especially for high frequency converter systems.

Organisationseinheit(en)

Institut für Antriebssysteme und Leistungselektronik

Typ

Aufsatz in Konferenzband

Seiten

1188-1193

Anzahl der Seiten

6

Publikationsdatum

2014

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Feuerungstechnik, Energieanlagenbau und Kraftwerkstechnik

Elektronische Version(en)

https://doi.org/10.1109/ECCE.2014.6953535 (Zugang: Geschlossen)