Title :
Control and analysis of a PV system operating under nonlinear conditions
Author :
Moçambique, Nilton Eufrázio M ; Quadros, Ricardo Machado
Author_Institution :
Univ. de Sao Paulo (USP/Sao Carlos), São Carlos, Brazil
Abstract :
Maximum power point tracking (MPPT) techniques are used to achieve the maximum output power of a photovoltaic (PV) system. Although there are many MPPT techniques, perturb and observe (P&O) method is the most commonly used. This paper shows the improve of MPPT P&O performance even with rapidly changing irradiance conditions by applying a feedback control law into the output voltage of the PV array that feeds a step-up converter.
Keywords :
feedback; maximum power point trackers; nonlinear control systems; photovoltaic power systems; power convertors; power generation control; MPPT technique; P&O method; PV array; PV system; feedback control law; maximum output power; maximum power point tracking technique; nonlinear condition; perturb and observe method; photovoltaic system; step-up converter; Arrays; Integrated circuit modeling; Photovoltaic systems; Resistance; Switches; Voltage control; DC-DC converter; Maximum power point tracking; PV systems;
Conference_Titel :
Power Electronics Conference (COBEP), 2011 Brazilian
Conference_Location :
Praiamar
Print_ISBN :
978-1-4577-1644-7
Electronic_ISBN :
2175-8603
DOI :
10.1109/COBEP.2011.6085315
