NDLI: Damping algorithm based on phasor estimation

Content Provider	IEEE Xplore Digital Library
Author	Angquist, L. Gama, C.
Copyright Year	2001
Description	Author affiliation: ABB Power Syst. AB, Vastras, Sweden (Angquist, L.)
Abstract	The paper describes a new method to generate the reactance reference for a TCSC, which has been installed in order to provide damping in a power system. The knowledge of the expected oscillation frequency in the power system is used to create a coordinate system, which rotates with that frequency. In this coordinate system a phasor representing the power swing is being extracted from the input power signal. A reactance reference signal with arbitrary gain and phase shift can easily be created using the phasor. The phase of the reactance reference is preserved during limiting. Gain and phase-shift may comfortably be scheduled due to measured parameters like average power, power swing amplitude etc. Frequency compensation has been implemented, and adapts the frequency in the measuring system when a power oscillation occurs. The new approach has been implemented and successfully tested in the North-South Interconnection in Brazil in March 1999 and has been in operation since then. The scheme is applicable for PSS and other FACTS damping systems.
Starting Page	1160
Ending Page	1165
File Size	1095376
Page Count	6
File Format	PDF
ISBN	0780366727
DOI	10.1109/PESW.2001.917237
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-01-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Damping Power systems Power measurement Power generation Power capacitors Thyristors Gain measurement Phase measurement Frequency measurement Testing
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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