Title :
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
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;
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
DOI :
10.1109/ICIT.2010.5472556
