Öğrenci:	Bora ÇAVDAR
Danışman:	Dr. Öğr. Üyesi Fatih Mehmet NUROĞLU
Anabilim Dalı:	Elektrik-Elektronik Müh.
Enstitü:	Fen Bilimleri Enstitüsü
Üniversite:	Karadeniz Teknik Üniversitesi

Tez Adı:	Power System Stability Analysis For Photovoltaic Plants and Battery Energy Storage Systems
Tezin Türü:	M.Sc.
Kabul Tarihi:	21/6/2021
Sayfa Sayısı:	171
Tez No:	i3883

Özet:

Technological advances in recent years with the help of decreasing economic costs

and increase in carbon dioxide emissions lead to power generation from renewable energy

sources in power systems. Among the renewable energy sources, photovoltaic (PV) units are

the most preferred for energy production type. The connection of photovoltaic units to the

power system with high penetration causes some differences (intermittent generation, lack

of rotor, etc.) and negativities (reduction of the total inertia and primary frequency support,

etc.) to traditional generation. Therefore, the use of energy storage units in power systems is

increasing in order to eliminate aforementioned effects.

In this study, the responses of PV plants and battery energy storage systems (BESS)

in dynamic events to power systems and their effects on the system are analyzed for power

system stability. The analyzes were performed using DigSilent Powerfactory simulation

program. In the study, which is discussed in detail, power systems of different sizes are used

to analyze from many aspects. The features, control options, penetration/sizes, numbers and

locations of PV plants and BESS units are considered in the study. Transient event types and

locations in systems are other cases considered. In addition, the characteristics of the load

types and their interaction with the examined structures are also included in the study. In the

study, transient and frequency stability analyzes were performed. The voltage stability was

also analyzed.