Open AccessBackstepping Control for MPPT and UPF of a Three Phase Single Stage Grid Connected PV System
Author(s) -
Mohammed El Malah,
A. Ba-Razzouk,
M. Guisser,
Elhassane Abdelmounim,
Mhamed Madark
Publication year - 2018
Publication title -
international journal of robotics and automation (ijra)/iaes international journal of robotics and automation
Language(s) - English
Resource type - Journals
eISSN - 2722-2586
pISSN - 2089-4856
DOI - 10.11591/ijra.v7i4.pp262-272
Subject(s) - control theory (sociology) , photovoltaic system , maximum power point tracking , phase locked loop , backstepping , controller (irrigation) , synchronization (alternating current) , inverter , grid , maximum power principle , computer science , engineering , mathematics , control (management) , voltage , adaptive control , electrical engineering , telecommunications , agronomy , geometry , artificial intelligence , jitter , biology , channel (broadcasting)
This paper presents a new control methodology of a three phase grid connected photovoltaic system without using the intermediary DC/DC converter. Based on the synchronized nonlinear model of the whole photovoltaic system, two controllers have been proposed for the three-phase inverter in order to ensure the operation of the PV system at the maximum power point with unity power factor and minimum grid disturbance. Grid synchronization has been ensured by a three-phase 2 nd order PLL (Phase-Locked Loop). The stability of each controller is demonstrated by means of Lyapunov analysis and evaluated under changing atmospheric conditions using the Matlab/Simulink environment, the simulation results clearly demonstrate the performance provided by each controller.