NDLI: Active Damping of Output <formula formulatype=inline><tex Notation=TeX>$LC$</tex></formula> Filter Resonance for Vector-Controlled VSI-Fed AC Motor Drives

Content Provider	IEEE Xplore Digital Library
Author	Hatua, K. Jain, A.K. Banerjee, D. Ranganathan, V.T.
Copyright Year	1982
Abstract	For longer life of alternating-current (ac) machines, it is desirable to feed them by sinusoidal voltages. This can be achieved by connecting an LC filter between the voltage source inverter and the motor. However, the LC filter creates unwanted oscillation at system resonant frequency. A resistance connected in series with the capacitor is a solution to damp out the resonant-frequency oscillation, but this damping technique increases loss in the system. In this paper, a simple active damping technique is proposed for lossless damping of vector-controlled ac motor drives with an LC filter. In the proposed technique, the resistance drop is emulated in the control using the terminal motor voltages. The proposed technique is carried out in the three-phase domain for better accuracy of the control. The proposed technique neither affects the dynamic response of the drive nor changes the design of the standard vector control loops. Results from experimental ac motor drives are presented.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	334
Ending Page	342
Page Count	9
File Size	643415
File Format	PDF
ISSN	02780046
Volume Number	59
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resonant frequency Capacitors Damping Inverters Resistance Switching frequency Inductance vector control Active damping (AD) induction machine $LC$ filter synchronous machine
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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