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Digital control techniques are used to control a voltage source inverter in a photovoltaic system. A digital signal processor is implemented in the voltage source inverter which provides rapid maximum power point tracking through the control of the inverter output current. In addition to this, the digital signal processor provides other necessary system functions including calculation of the inverter switching instants used for current regulation and maximum power point tracking and synchronization with the grid. The system is presented as a fully operational unit and the inclusion of simulation results, analysis of the control implementation technique and experimental verification exhibit the system's functionality.
Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual (Volume:5 )
Date of Conference: 20-25 June 2004