Eur. Phys. J. AP
Volume 3, Number 1, July 1998
|Page(s)||59 - 69|
|Published online||15 July 1998|
Comparative study of two structures of shunt active filter suppressing particular harmonics
GREEN-UHP, BP 239, 54506 Vandœuvre Cedex, France
Corresponding author: firstname.lastname@example.org
Revised: 9 December 1997
Revised: 5 March 1998
Accepted: 30 April 1998
Published online: 15 July 1998
This paper deals with the study of shunt active filters used for suppressing particular harmonics generated by nonlinear loads in utility distribution power systems. Both structures of shunt active filter, voltage source active filter (VSAF) and current source active filter (CSAF), are considered. The analytical study of specific harmonics identification in a given spectrum is first presented. For simulation as well as experimentation the nonlinear load is a conventional three phase thyristor rectifier and harmonics 5 and 7 are selected to be eliminated by active filter. The whole system consisting of the ac power supply network, the SCR rectifier and the shunt active filter (VSAF/CSAF) is then simulated. The simulation results are discussed and the efficiency of the two kinds of active filter are compared. Finally, for the first structure, VSAF, the simulation results are confirmed by experimental test realized by means of a fully digital control active power filter developed in our laboratory.
PACS: 84.30.Jc – Power electronics; power supply circuits / 84.30.Vn – Filters / 84.70.+p – High-current and high-voltage technology: power systems; power transmission lines and cables (including superconducting cables)
© EDP Sciences, 1998
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