NDLI: Active Resonance Dampers: A comparison between fixed and adaptive gains

Content Provider	IEEE Xplore Digital Library
Author	Santana, W.C. Al-Haddad, K. da Silva, L.E.B.
Copyright Year	2009
Description	Author affiliation: Departamento de Eletrônica Instituto de Engenharia Elétrica Universidade Federal de Itajubá Itajubá, MG, Brazil (da Silva, L.E.B.) \|\| Département de génie électrique École de technologie supérieure Université du Québec Montreal, QC, Canada (Santana, W.C.; Al-Haddad, K.)
Abstract	This work presents a comparison between two control strategies for Active Resonance Dampers. This kind of equipment must act as a harmonic impedance in order to damp harmonic propagation throughout a distribution feeder. This harmonic resistance must be equal to the characteristic impedance of the distribution feeder in order to achieve optimized compensating currents and avoid over-compensate the feeder (which may amplify distortion on intermediary buses). As the analytical calculation of this impedance is a non-trivial (and maybe, impossible) task, it is proposed an ARIMAX Least-Squares based parameters estimator to determine, on line, the optimal value for the harmonic resistance. The system is modeled in a way that allows the feeder's characteristic impedance to be estimated based only on the installation site voltage (i.e., no voltage/current sensors are required on other parts of the feeder) independently on the number of buses or non-linear loads attached to them. A sliding-Goertzel algorithm is used to extract the harmonic content of the installation site voltage (thus, no PLL or d-q transforms are necessary, making the algorithm suitable for single phase systems). The proposed strategy (estimated impedance) is, then, compared with the traditional one (fixed impedance) through simulations.
Starting Page	154
Ending Page	159
File Size	897413
Page Count	6
File Format	PDF
ISBN	9781424446483
ISSN	1553572X
e-ISBN	9781424446506
DOI	10.1109/IECON.2009.5414795
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-03
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resonance Power system harmonics Impedance Power harmonic filters Voltage Active filters Harmonic distortion Frequency Programmable control Adaptive control
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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