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Static Var Compensator and Active Power Filter with Power Injection Capability, Using 27-level Inverters and Photovoltaic Cells

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6 Author(s)
Juan Dixon ; Department of Electrical Engineering, Pontificia Universidad Católica de Chile, Vicuna Mackenna 4860, Santiago, Chile. fax 56-2-552-2563. e-mail jdixon@ing.puc.cl ; Micah Ortuzar ; Rodrigo Carmi ; Pablo Barriuso
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An active power filter and static VAr compensator with active power generation capability, has been implemented using a 27-level inverter. Each phase of this inverter is composed of three "H" converters, all of them connected to the same dc link and their outputs connected through output transformers scaled in power of three. The filter can compensate load currents with high harmonic content and low power factor, resulting in sinusoidal currents from the source. The dc link is connected to a battery pack, which can be charged from two sources: the ac mains supply and a photovoltaic array connected to the batteries through a MPT (maximum power tracker) converter. These characteristics make it possible to produce active power and to feed the contaminating load during prolonged voltage outages. Simulation results for this application are shown and some experiments with a 3 kVA device are also displayed

Published in:

2006 IEEE International Symposium on Industrial Electronics  (Volume:2 )

Date of Conference:

9-13 July 2006