Akademik Veri Yönetim Sistemi
Tezin Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: İnönü Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği, Türkiye
Tezin Onay Tarihi: 2025
Tezin Dili: Türkçe
Öğrenci: MUSAB OKSAR
Danışman: Asim Kaygusuz
Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
Özet:
In recent years, where smart city and smart grid applications have increased for need of energy, there has been a tendency to switch to decentralized energy production rather than centralized energy production. In distributed power generation systems, solar energy (photovoltaic energy) (PV) systems have an important position. In the smart grids, with the integration of distributed energy systems in the grid, stability and power quality of the transmission system has become an important issue. These systems during continuous operation can have negative effects on the energy quality of the grid, especially voltage regulation, and may cause some security problems. Many conventional or power electronics-based technologies are used to solve power quality problems. Flexible Alternative Current Transmission Systems (FACTS), which are power electronics-based devices aiming to increase the power transfer capacity of the line by improving power quality problems, are used in transmission systems. STATCOM have a lot of advantages which are active and reactive power control, speed of response time, etc. because of these advantages, STATCOM is more preferred than other FACTS devices. However, the initial installation cost of STATCOM is high. Therefore, installing of STATCOM in every PV system it is not economic. In literature, it has been shown that DC-AC converter in PV system can be used as STATCOM if it is equipped with necessary features. The PV systems which used in this form are called PV-STATCOM. PV-STATCOM provides solutions to many power quality problems in grid-connected PV systems and solves these problems at a lower cost than external FACTS devices. In this study, the effects of the grid-connected distributed energy systems on the grid are mentioned and have been studied on a PV-STATCOM to eliminate the power quality problems in grid-connected PV energy system. In the study, which was simulated in MATLAB / SIMULINK environment, the effects of PV system on the grid in different load profiles and case of faults were examined and these problems were tried to be solved by using PV-STATCOM. It is seen that power quality problems can be solved with less equipment and less cost thanks to PV-STATCOM structure in grid-connected PV systems.