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

fYear

2011

fDate

27-30 June 2011

Firstpage

1100

Lastpage

1105

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics (ISIE), 2011 IEEE International Symposium on

Conference_Location

Gdansk

ISSN

Pending

Print_ISBN

978-1-4244-9310-4

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/ISIE.2011.5984313

Filename

5984313