Selective active filtering for four-wire loads: Control and balance of split capacitor voltages

This paper presents a controller for the DC voltages on the split capacitor topology for a four-wire selective active filter. A simple model for the dynamics of the two capacitor voltages is derived under the assumption of time-scale separation between the dynamics of the inverter currents and the c...

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Bibliographic Details
Main Authors: Casaravilla, G., Eirea, G., Barbat, G., Inda, J., Chiaramello, F.
Format: Conference Proceeding
Language:English
Subjects:
Active filters
Band pass filters
Capacitors
Filtering
Harmonic analysis
Power harmonic filters
Voltage control
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Description
Summary:This paper presents a controller for the DC voltages on the split capacitor topology for a four-wire selective active filter. A simple model for the dynamics of the two capacitor voltages is derived under the assumption of time-scale separation between the dynamics of the inverter currents and the capacitor voltages. The controller proposed is based on physical principles and can be easily integrated with existing four-wire active filter controllers based on instantaneous reactive power (p-q) theory. Simulations and experimental results illustrate the benefits of the solution proposed.
ISSN:0275-9306
2377-6617
DOI:10.1109/PESC.2008.4592698