NDLI: Selective damping of inter area oscillations using phasor measurement unit (PMU) signals

Content Provider	IEEE Xplore Digital Library
Author	Erlich, I. Hashmani, A. Shewarega, F.
Copyright Year	2011
Description	Author affiliation: Department of Electrical Power Systems, University Duisburg-Essen, Germany (Erlich, I.; Shewarega, F.) \|\| University Duisburg-Essen, Germany (Hashmani, A.)
Abstract	This paper deals with the design of an H-based decentralized power system stabilizer (PSS) controller, which uses selected suitable wide area PMU signals as supplementary inputs to achieve a better damping of specific inter-area modes. The wide area or global signals are taken from network locations where the oscillations are well observable, and the PSS controller uses only those local and remote input signals in which the assigned single inter-area mode is most observable, and it is located at a generator most effective in controlling that mode. The PSS controller works mainly in a frequency band given by the natural frequency of the assigned mode. Pade approximation approach is used to model the time delay and uncertainty with regard to its value. This model is then merged with the delay-free power system model to obtain the overall power system model. Finally, the controllers are redesigned for the delayed-input system considering delay uncertainty. The effectiveness of the resulting PSS controllers in achieving improved damping of inter-area modes is demonstrated through simulation studies conducted on a test power system.
Starting Page	1
Ending Page	6
File Size	1034050
Page Count	6
File Format	PDF
ISBN	9781424484195
e-ISBN	9781424484188
e-ISBN	9781424484171
DOI	10.1109/PTC.2011.6019194
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-19
Publisher Place	Norway
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Delay effects Uncertainty Damping Generators Oscillators Transient analysis Robust H∞ control Inter-area oscillations PSS Remote signals Wide area measurements Uncertainty in time delay
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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