Browsing NTNU Open by Author "Peftitsis, Dimosthenis"
Now showing items 1-20 of 83
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An Adaptive Current-Source Gate Driver for High-Voltage SiC MOSFETs
Rødal, Gard Lyng; Peftitsis, Dimosthenis (Peer reviewed; Journal article, 2022)This paper presents a novel current-source gate driver for Silicon Carbide (SiC) metal oxide semiconductor field-effect transistors (MOSFETs) with adaptive functionalities. The proposed driver aims to decouple and improve ... -
Advanced gate drivers for next generation high power converters
Hove, Håvard Lefdal (Master thesis, 2019)Denne masteroppgaven tar for seg avanserte driverkretser for halvleder komponenter med høy båndbredde (WBG) slik som de nye silisiumkarbid (SiC) MOSFETene. Sammenlignet med tradisjonelle halvleder materialer som silisium ... -
Approximate SPICE modeling of SiC MOSFETs
Kubulus, Pawel Piotr; Dybdahl Meinert, Janus; Beczkowski, Szymon; Jørgensen, Asger Bjørn; Munk-Nielsen, Stig; Peftitsis, Dimosthenis (Journal article; Peer reviewed, 2025)The recent adaptation of wide bandgap (WBG) semiconductors pushes the SPICE circuit simulation software to the very edge, requiring computationally light and accurate assessment of rapid and oscillatory transients. One of ... -
Battery energy storage integration via DC/AC converter in grid connected wind turbines
Rekdal, Kristin (Master thesis, 2018)The growing need of battery energy storage to support the increase in renewable production in the electricity mix has brought the attention to the modular multilevel converter (MMC) for medium voltage applications. Modular ... -
Battery energy storage system connected to a three-phase 50 Hz-grid
Reite, Ida Pria (Master thesis, 2017)Battery energy storage systems (BESS) employing secondary battery technology may offer the greatest potential for large-scale integration of renewable energy sources (RES), and is considered a key element for enabling smart ... -
Bidirectional DC-DC Converter for an Electric Vehicle On-Board Charger
Thorsen, Mathias Winther (Master thesis, 2019)Det økende antallet elbiler i verden er en viktig del av dekarbonisering av transportsektoren, men å lade dem kan øke belastningen på det elektriske kraftnettet. Målet med denne avhandlingen er å finne ut om V2G-teknologi ... -
Capacitance Variations and Gate Voltage Hysteresis Effects on the Turn-On Switching Transients Modelling of High-Voltage SiC MOSFETs
Rødal, Gard Lyng; Vivekanandham Pushpalatha, Yoganandam; Philipps, Daniel Alexander; Peftitsis, Dimosthenis (Peer reviewed; Journal article, 2023) -
Challenges and Strategies for a Real-Time Implementation of a Rainflow-Counting Algorithm for Fatigue Assessment of Power Modules
Antonopoulos, Antonios; D'Arco, Salvatore; Hernes, Magnar; Peftitsis, Dimosthenis (Chapter, 2019)The aim of this work is to obtain a reliable estimation of the remaining lifetime of power-electronic modules. Lifetime models provide information on the fatigue durability of power modules under repetitive loading ... -
Challenges of SiC MOSFET Power Cycling Methodology
Göthner, Fredrik T. B. W.; Spro, Ole Christian; Hernes, Magnar; Peftitsis, Dimosthenis (Chapter, 2018)This paper investigates the power cycling methodology for reliability testing of SiC metal-oxide-semiconductor field-effect transistors (MOSFETs). Dedicated test benches were designed and built to study this issue. The ... -
Challenges on drive circuit design for series-connected SiC power transistors
Peftitsis, Dimosthenis; Rabkowski, Jacek; Nee, Hans-Peter; Undeland, Tore Marvin (Journal article; Peer reviewed, 2017)The breakdown voltages of the currently available 1.2 and 1.7-kV classes Silicon Carbide (SiC) transistors are not sufficient to operate under medium blocking voltages. On the other hand, the fabrication yields of the ... -
A Condition Monitoring Method for Solder Layer Degradation of Liquid-Cooled Power Semiconductors
Baumann, Timm Felix; Papastergiou, Konstantinos; Murillo Garcia, Raul; Peftitsis, Dimosthenis (Chapter, 2023)This paper presents a new method for condition monitoring of solder layer degradation of liquid-cooled power semiconductors. Solder layer degradation is detected by an increased thermal impedance, which has the effect that ... -
Conduction Performance Evaluation of Silicon and SiC Power Semiconductors for Solid-State DC Breakers
Giannakis, Andreas; Peftitsis, Dimosthenis (Peer reviewed; Journal article, 2022)The main obstacle for the further development and commercialization of solid-state DC circuit breakers is the high ON-state power losses caused by the active power semiconductor devices. This paper presents an experimental ... -
Considerations on Combining Unfolding Inverters with Partial Power Regulators in Battery–Grid Interface Converters
Galkin, Ilya; Saltanovs, Rodions; Bubovich, Alexander; Blinov, Andrei; Peftitsis, Dimosthenis (Peer reviewed; Journal article, 2024)The application of electrochemical cells as a source unit of electrical energy is rapidly growing—used in electric vehicles and other electric mobility devices, as well as in energy supply systems—as energy storage, often ... -
Control of a Four Level Active Gate Driver for SiC MOSFET
Laupsa, Eli (Master thesis, 2024)Denne masteroppgåva presenterer utforming, simulering og implementering av kontroll for ein styrekrins for silikon karbid metall-oksid-halvleiar felteffekttransitor (MOSFET). Styrekrinsen nyttar mellombelse spenningsnivå ... -
Design and optimisation of an auxiliary power supply with medium-voltage isolation using GaN HEMTs
Spro, Ole Christian Baumann (Doctoral theses at NTNU;2020:350, Doctoral thesis, 2020)This PhD thesis shows that compact and efficient converter systems can be obtained by leveraging the inherent characteristics of GaN HEMT devices. In the targeted application of an auxiliary power supply with medium-voltage ... -
Design Challenges of a SiC-based MVDC Power Supply for Deep-Sea Applications
Rødal, Gard Lyng; Peftitsis, Dimosthenis (Chapter, 2019)Design challenges of medium-voltage DC/DC converter for deep-sea applications using silicon carbide (SiC) power MOSFET modules are reviewed. Challenges of high-pressure conditions at deep-sea operation are presented and ... -
Design Considerations and Modeling of a VSC Assisted Resonant Current DC Circuit Breaker for MVDC Applications
Bergerskogen, Mathilde (Master thesis, 2020)Mellomspente likestrømsnett (MVDC-nett) har mange fordeler sammenlignet med mellomspente vekselstrømsnett (MVAC-nett), og betraktes som velegnet til et bredt spekter av bruksområder. Håndteringen av kortslutningsfeil er ... -
Design Considerations for Series-Connected SiC MOSFETs Operating at 100 kV/µs
Ubostad, Tobias Nieckula; Peftitsis, Dimosthenis (Chapter, 2023)Series connection of Silicon Carbide (SiC) metal-oxide semiconductor field-effect transistors (MOSFETs) is an interesting solution to design switches for voltages that are not yet commercially available or limited for ... -
Design Considerations of Power Semiconductor Devices Employed in VSCs Under Short-Circuit Fault Conditions in MVDC Distribution Grids
Giannakis, Andreas; Peftitsis, Dimosthenis (Chapter, 2018)Electric energy distribution using medium voltage DC (MVDC) enables an advantageous performance compared to the state-of-the-art MVAC counterparts. Among others, a crucial challenge currently is related to the need for ... -
Design of High-Performance Solid-State Circuit Breakers for LVDC and MVDC Applications
Giannakis, Andreas (Doctoral theses at NTNU;2022:59, Doctoral thesis, 2022)Today, the emerging technology of LVDC and MVDC grids is under extensive research. These grids ease the integration of distributed electricity generation systems and offer several advantages over the AC counterparts, such ...