Open AccessRealization of single-phase single-stage grid-connected PV system
Author(s) -
Osama M. Arafa,
Ahmed A. Mansour,
Khaled S. Sakkoury,
Yousry Atia,
Mahmoud Salem
Publication year - 2017
Publication title -
journal of electrical systems and information technology
Language(s) - English
Resource type - Journals
ISSN - 2314-7172
DOI - 10.1016/j.jesit.2016.08.004
Subject(s) - grid , inverter , power factor , computer science , controller (irrigation) , single phase , matlab , control theory (sociology) , single stage , phase locked loop , voltage , electronic engineering , engineering , electrical engineering , agronomy , geometry , control (management) , artificial intelligence , biology , operating system , jitter , mathematics , aerospace engineering
This paper presents a single phase single stage grid-tied PV system. Grid angle detection is introduced to allow operation at any arbitrary power factor but unity power factor is chosen to utilize the full inverter capacity. The system ensures MPPT using the incremental conductance method and it can track the changes in insolation level without oscillations. A PI voltage controller and a dead-beat current controller are used to ensure high quality injected current to the grid. The paper investigates the system structure and performance through numerical simulation using Matlab/Simulink. An experimental setup controlled by the MicrolabBox DSP prototyping platform is utilized to realize the system and study its performance. The precautions for smooth and safe system operation including the startup sequence are fully considered in the implementation