Model Based Voltage Calculation for Inverters with small DC-Link Capacitance

Piepenbreier B, von Zimmermann M (2011)

Publication Type: Conference contribution

Publication year: 2011

Edited Volumes: 1st International Electric Drives Production Conference 2011, EDPC-2011 - Proceedings

Pages Range: 333-338

Conference Proceedings Title: EDPC 2011

Event location: Nuremberg

ISBN: 978-1-4577-1368-2

DOI: 10.1109/EDPC.2011.6085566


Employing only a small capacitance in the DC-link of an adjustable speed drive (ASD) enables the replacement of electrolytic capacitors with film capacitors. Unfortunately, in combination with a diode bridge rectifier the DC-link voltage exhibits a significant six-pulse ripple. By measuring the DC-link voltage and providing the load side control with its value as widely done, this ripple can be compensated. In the following, a method is presented calculating the varying DC-link voltage by referring exclusively to the transfer function of the rectifier. This way, the DC-link voltage sensor can be omitted. Additionally, a partially damped mains filter is implemented to reduce line current oscillations. Experimental results verify the suitability of both the filter design and the model-based control. © 2011 IEEE.

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How to cite


Piepenbreier, B., & von Zimmermann, M. (2011). Model Based Voltage Calculation for Inverters with small DC-Link Capacitance. In EDPC 2011 (pp. 333-338). Nuremberg.


Piepenbreier, Bernhard, and Moritz von Zimmermann. "Model Based Voltage Calculation for Inverters with small DC-Link Capacitance." Proceedings of the 1st International Conference on Electric Drives Production, Nuremberg 2011. 333-338.

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