FPGA-based controller for mitigation of the 100 Hz oscillation in grid connected PV systems

Author

Mamarelis, Emilio ; Ramos-Paja, Carlos Andrés ; Petrone, Giovanni ; Spagnuolo, Giovanni ; Vitelli, Massimo ; Giral, Roberto

Author_Institution

Dip. Ing. dell´´Inf. e Ing. Elettr. (D.I.I.I.E.), Univ. of Salerno, Salerno, Italy

fYear

2010

fDate

14-17 March 2010

Firstpage

925

Lastpage

930

Abstract

This paper illustrates a new control strategy for reducing the photovoltaic (PV) voltage oscillations at twice the grid frequency in double-stage single-phase PV inverters. It is based on the analytical calculation of the duty-cycle compensation which is able to lead to an almost constant PV voltage. The work is focused on the optimization of the performances of the FPGA-based digital implementation; the proposed approach is validated by means of experimental results.

Keywords

field programmable gate arrays; invertors; oscillations; photovoltaic power systems; power generation control; power grids; FPGA-based controller; double-stage single-phase PV inverters; duty-cycle compensation; frequency 100 Hz; grid connected PV systems; grid frequency; photovoltaic voltage oscillations; Capacitance; Capacitors; Control systems; Costs; DC-DC power converters; Digital control; Feedback loop; Frequency; Inverters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology (ICIT), 2010 IEEE International Conference on

Conference_Location

Vi a del Mar

Print_ISBN

978-1-4244-5695-6

Electronic_ISBN

978-1-4244-5696-3

Type

conf

DOI

10.1109/ICIT.2010.5472556

Filename

5472556