NDLI: Time delay compensation for a current-source active power filter using state-feedback controller

Content Provider	IEEE Xplore Digital Library
Author	Huu-Phuc To Rahman, F. Grantham, C.
Copyright Year	2005
Description	Author affiliation: Sch. of Electr. Engineeering & Telecommun., New South Wales Univ., Sydney, NSW, Australia (Huu-Phuc To; Rahman, F.; Grantham, C.)
Abstract	The inevitable time delay in a digital signal processing (DSP) based controller can significantly degrade the performance of an active power filter. With a current-source active power filter (CS-APF) the problem can be more severe as this time delay can excite the filter resonance and cause oscillations in the compensation current. The paper derives the state space model for the CS-APF where the time delay is modeled properly into the state equations of the system. This makes the system dynamic model more accurate and the time delay can be compensated when a controller is designed for the system. State space control strategy is selected for the CS-APF controller. Experimental results from our prototype CS-APF system are presented to show the effect of the time delay on the CS-APF response and the validity of the proposed approach.
Starting Page	1213
Ending Page	1219
File Size	304584
Page Count	7
File Format	PDF
ISBN	0780392086
ISSN	01972618
DOI	10.1109/IAS.2005.1518513
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-02
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation Delay effects Process control Prototypes Digital signal processing Active filters Resonance State-space methods Power system modeling Equations
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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