NDLI: Interaction between the current controller and the injection of alternating carriers in sensorless drives

Content Provider	IEEE Xplore Digital Library
Author	Leidhold, R. Mutschler, P.
Copyright Year	2008
Description	Author affiliation: Darmstadt Univ. of Technol., Darmstadt (Leidhold, R.; Mutschler, P.)
Abstract	The injection of an alternating voltage carrier, which is generated by the inverter, allows to detect the rotor position in PM synchronous motors by evaluation of the anisotropies. There are however some limitations on the carrier frequency. On one hand, it must be much lower than the inverterpsilas switching frequency. On the other hand it must be high enough in order to avoid being attenuated by the current controller. As the current controllers are usually designed to reach the highest possible bandwidth, in the proposals for carrier-based position detection methods their bandwidth are limited. In this paper, the interaction between the current controller and the injected carrier is studied. A method to keep the highest bandwidth for the current controller while maximizing the carrier path gain is proposed in order to optimize the position detection.
Starting Page	262
Ending Page	267
File Size	629129
Page Count	6
File Format	PDF
ISBN	9781424416639
DOI	10.1109/SPEEDHAM.2008.4581142
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-11
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Current control Position control Bandwidth Sensorless control Synchronous motors Permanent magnet motors Band pass filters Inverters Synchronous motor drives Frequency control Demodulation
Content Type	Text
Resource Type	Article

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