NDLI: Zero sequence current elimination for dual-inverter fed machines with open-end windings

Content Provider	IEEE Xplore Digital Library
Author	Senicar, F. Junge, C. Gruber, S. Soter, S.
Copyright Year	2010
Description	Author affiliation: Electrical Machines and Drives Group, University of Wuppertal, Germany (Senicar, F.; Junge, C.; Gruber, S.; Soter, S.)
Abstract	A dual-inverter allows to increase easily the maximum available power of a given inverter. When connecting two equal inverters to a machine with open end windings, the available power will raise by factor 3√. However, the dual inverter also introduces a new degree of freedom for the current, which is the zero component current. The dual inverter is known for developing zero component currents, which have three times the frequency of the fundamental current, and can be of a rather large amplitude. This paper analyses the origin of these zero component currents and shows an example of how to eliminate them. Moreover it shows the possibility to suppress zero component currents by using only software algorithms modifying the current control loop. There is no need for extra components. Moreover there are no drawbacks in the quality of control as well as regarding the maximum available voltage.
Starting Page	853
Ending Page	856
File Size	1399184
Page Count	4
File Format	PDF
ISBN	9781424452255
ISSN	1553572X
DOI	10.1109/IECON.2010.5675175
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inverters Voltage control Windings Insulated gate bipolar transistors Harmonic analysis Switches Conferences Motor drives and motion control Dual inverter Dead time compensation Open-end winding
Content Type	Text
Resource Type	Article

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