Akademik Veri Yönetim Sistemi
11. INTERNATIONAL PALANDOKEN SCIENTIFIC STUDIES CONGRESS, Erzurum, Türkiye, 20 - 21 Haziran 2025, cilt.1, sa.1, ss.197-198, (Özet Bildiri)
With the increasing energy demand and the widespread use of smart city and smart grid approaches, a distinct trend from centralized approaches to distributed energy production systems is observed. In this race, photovoltaic (PV) systems based on solar energy have an important place. The effects of distributed energy systems integrated into power systems on transmission system stability and power quality have become a noteworthy issue. In addition to classical methods, various power electronics-based technologies have also been developed to eliminate power quality problems in distribution and transmission systems. Flexible Alternating Current Transmission Systems (FACTS), which aim to increase the transfer capacity of the line by improving power quality problems in transmission systems, stand out among these technologies. Among FACTS devices, STATCOM is preferred due to its advantages such as active and reactive power control capability and fast response time. However, due to the high initial installation cost of STATCOM, it is not economically feasible to integrate it externally into the system in every region where the PV system is located. It has been shown in the literature that the DC-AC converter in PV systems can function like a STATCOM with the necessary modifications. The PV systems used in this way are called PV-STATCOM. PVSTATCOM offers a lower cost solution to many power quality problems that occur in gridconnected PV systems compared to external FACTS devices. In this study, the effects of grid-connected distributed energy systems on the grid are discussed. A PV-STATCOM structure controlled for the purpose of providing reactive power compensation in a grid where a PV energy system is located is emphasized. In simulations performed in the MATLAB/SIMULINK environment, the effects of the PV system on the grid under different load profiles are examined and it is aimed to eliminate these problems by using PV-STATCOM. It has been determined that the PV-STATCOM structure can solve power quality problems with less equipment and lower cost in grid-connected PV systems.
Keywords: Smart grid, Smart City, PV, PV-STATKOM, FACTS, Photovoltaic, Power quality