Title :
Power control of grid-connected photovoltaic systems
Author :
Zanasi, Roberto ; Cuoghi, Stefania
Author_Institution :
DII (Inf. Eng. Dept.), Univ. of Modena & Reggio Emilia, Modena, Italy
Abstract :
In this paper the Power Oriented Graph technique is used for modeling a grid-connected single-phase 3kW DC/AC power converter for solar energy conversion system. A DC/DC stage, controlled by a maximum power point tracking (MPPT) technique, is used to boost the time-varying input voltage provided by photovoltaic panels. A buck DC/AC stage, including a PWM inverter, is implemented to transfer the active power to the grid. A new control scheme for the DC/AC stage is proposed.
Keywords :
DC-AC power convertors; PWM invertors; maximum power point trackers; photovoltaic cells; photovoltaic power systems; power control; power grids; power system control; solar energy conversion; DC/AC stage; DC/DC stage; PWM inverter; grid-connected photovoltaic systems; grid-connected single-phase DC/AC power converter; maximum power point tracking technique; photovoltaic panels; power 3 kW; power control; power oriented graph technique; solar energy conversion system; Bridge circuits; DC-DC power converters; Inverters; Phase locked loops; Pulse width modulation; Voltage control;
Conference_Titel :
Industrial Electronics (ISIE), 2011 IEEE International Symposium on
Conference_Location :
Gdansk
Print_ISBN :
978-1-4244-9310-4
Electronic_ISBN :
Pending
DOI :
10.1109/ISIE.2011.5984313
