Research Information System
Thesis Type: Postgraduate
Institution Of The Thesis: Gazi University, Fen Bilimleri Enstitüsü, Turkey
Approval Date: 2020
Thesis Language: Turkish
Student: KAMRAN GHORBANYAN
Supervisor: Selim Acar
Open Archive Collection: AVESIS Open Access Collection
Abstract:
In the present world, due to the dramatic increase in the need for the use of power systems in humans, transmission lines increase the capacity of demand and therefore the electricity grid. For such reasons, the power systems were put at risk of high fault current. The reliability and stability of the systems are directly related to control and decrease the severity of the fault currents. Therefore, many fault current limiters (FCLs) have been made and applied to power systems. This master work presents a new structure of a DC reactor (DCR) based on the fault current limiter and improvement of its core structure by using permanent magnets (PDCR) and investigates the magnetic fields of both prototypes cores under various laboratory fault conditions. The principle of these cores was analyzed in various network fault currents using a fault current generation system and magnetic analyses were carried out by an electric field detection system. The setups of prototypes were built and tested. At the same time prototypes were simulated with MAXWELL-3D and MATLAB, then experimental and simulation results were compared. The comparison of the results indicates that the proposed DCR based on FCL is a promising solution to address protection issues.
Key Words : Fault current limiter, Magnetic field, Permanent magnet, DCR,
PDCR