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   Digital Control of a Three Phase 4 Wire PWM Inverter for PV Applications   [View] 
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 Author(s)   S. El-Barbari; W. Hofmann 
 Abstract   The microcontroller based digital control of a three phase 4 wire PWM inverter for simultaneously supply of three phase and single phase load in transformerless stand alone photovoltaic application with battery energy storage (BES) ald LC output filter is described. An observer is implimented to estimate the load current and to predict the space states for one step ahead. A control method based on the dead beat control algorithm is described to regulate the output voltage of the LC filter so that disturbance of the output voltage due to load unbalances is eliminated. Simulation results for various operation conditions are presented to verify the validity of the control method. 
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Filename:EPE1999 - PP00310 - El-Barbari.pdf
Filesize:978.4 KB
 Type   Members Only 
 Date   Last modified 2004-04-06 by System