Browsing by Author "Eid, Bilal"

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Development of Ultra Fast Gate Driver Board for Silicon Carbide MOSFET Applications
(2025) Adak, Suleyman; Cangi, Hasan; Tepedelen, Halil; Eid, Bilal
Silicon Carbide (SiC) is increasingly utilized in high-temperature, high-power applications due to its exceptional properties, including high-temperature resistance, high electrical conductivity, and a wide bandgap. In this study, the development of an ultra-fast gate driver circuit for SiC MOSFETs, designed for AC/DC and DC/AC converter applications, is presented. SiC switching elements are widely preferred in modern power electronics for their capabilities, such as faster switching within a wide bandwidth (50–250 kHz), higher power density, and operation at elevated voltage levels (up to 1,200 V). The high bandgap energy of SiC enables efficient and reliable operation under demanding conditions. This study focuses on designing an optimized gate driver board that minimizes voltage spikes and noise, achieving a voltage overshoot below 10% and noise suppression of up to 15 dB during switching operations. The proposed design is particularly suited for applications in solar inverters and other high-frequency power electronics systems. Simulation and experimental results, including switching rise times under 20 ns and total harmonic distortion (THD) levels below 3%, validate the effectiveness of the proposed gate driver.
Citation - WoS: 26
Citation - Scopus: 28
Developed Analytical Expression for Current Harmonic Distortion of the Pv System's Inverter in Relation To the Solar Irradiance and Temperature
(Springer, 2021) Cangi, Hasan; Eid, Bilal; Yilmaz, Ahmet Serdar; Adak, Suleyman
This paper deals with modeling and simulation of the total harmonic distortion of the current (THDI) dispatched from the inverter and connected to nonlinear load. The change of THD(I)was examined in relation to the ambient temperature (T) and solar irradiance (G). The developed model is being used to extract parameters for a given THD(I)as a function of temperature and solar radiation. This study outlines the working principle of photovoltaic (PV) panel as well as PV array. Off-grid PV system is modeled by using Matlab/Simulink program, and detailed analytical study has been carried out in this work. The design, modeling and simulation of this study are performed from 50 up to 988 W/m(2)for solar irradiance. Harmonic components have negative effects on the steady-voltage stability of the PV system. Therefore, analytical expression is needed for steady-state stability analysis in order to reduce negative effects. Hence, two analytical expressions of THD(I)were obtained by two new different methods which are statistical package for the social sciences program and genetic expression programming. Eventually, two different methods have been verified by the Matlab/Simulink program in order to find out THD(I)and demonstrated the effectiveness of the proposed strategy. As a result of this study, it is observed that input current THDI of nonlinear load is too high at low irradiance. It is suggested that active harmonic filters should be used at low irradiance in order to produce better quality energy and avoid damages in the PV system.