Search Results - "Grzejszczak, Piotr"

Closed-Form Formulas for Automated Design of SiC-Based Phase-Shifted Full Bridge Converters in Charger Applications by Wolski, Kornel, Grzejszczak, Piotr, Szymczak, Marek, Barlik, Roman

“…Phase-Shifted Full Bridge (PSFB) topology in its four-diode variant is the choice with the lowest part count in applications that demand high power, high…”
Get full text

Modeling and Measurements of Properties of Coupled Inductors by Detka, Kalina, Górecki, Krzysztof, Grzejszczak, Piotr, Barlik, Roman

“…This paper proposes a model of a coupled inductor which takes into account the influence of frequency, temperature, and a constant component, IDC, of currents…”
Get full text

Mathematical and simulation modeling of dual active bridge by Barlik, Roman, Grzejszczak, Piotr, Koszel, Mikołaj

“…The paper is a structured, in-depth analysis of dual active bridge modeling. In the research new, profound dual active bridge converter (DAB) circuit model is…”
Get full text

Design, Analysis and Comparison of Si- and GaN-Based DC-DC Wide-Input-Voltage-RangeBuck-Boost Converters by Koszel, Mikołaj, Grzejszczak, Piotr, Nowatkiewicz, Bartosz, Wolski, Kornel

“…The purpose of the article is a comparison between DC/DC topologies with a wide input voltage range. The research also explains how the implementation of GaN…”
Get full text

Investigation of a High-efficiency and High frequency10-kW/800-V Three-phase PWM Converter with Direct Power Factor Control by Barlik, Roman, Grzejszczak, Piotr, Leszczyński, Bernard, Szymczak, Marek

“…The paper presents a concept of a control system for a high-frequency three-phase PWM grid-tied converter (3x400 V / 50 Hz) that performs functions of a 10-kW…”
Get full text

Estimation of power losses in a high-frequency planar transformer using a thermal camera by Barlik, Roman, Nowak, Mieczysław, Grzejszczak, Piotr, Zdanowski, Mariusz

“…This paper presents the implementation of a thermal camera for the quantitative estimation of power losses in a high frequency planar transformer (100 kHz/…”
Get full text

Analysis and estimation of power losses in high-power, high-frequency transformers for isolated DC/DC converters by Grzejszczak, Piotr, Barlik, Roman, Wolski, Kornel

“…The paper presents an in-depth analysis of the power losses in the windings and the cores of two different transformers as applied to a phase-shifted full…”
Get full text

Intelligent DC Microgrids in a Power System with a High Share of Renewable Energy Sources - Challenges and Problems by Grzejszczak, Piotr

“…The article begins with a discussion of current problems in the power system in Poland, where there is a significant share of renewable energy sources,…”
Get full text

The Description of Turn-Off Process and Evaluation of Switching Power Losses in the Ultra Fast Power Mosfet by Grzejszczak, Piotr, Barlik, Roman

“…The article presents an analytical description of the turn-off process of the power MOSFET suitable for use in high-frequency converters. The purpose of this…”
Get full text

Mathematical and simulation modeling of dual active bridge by Barlik, Roman, Grzejszczak, Piotr, Koszel, Mikołaj

Get full text

Design, Analysis and Comparison of Si- and GaN-Based DC-DC Wide-Input-Voltage-RangeBuck-Boost Converters by Koszel, Mikołaj, Grzejszczak, Piotr, Nowatkiewicz, Bartosz, Wolski, Kornel

Get full text

Power loss estimating in GaN E-HEMT based synchronous buck-boost converter by Koszel, Mikolaj, Grzejszczak, Piotr

“…This paper presents an extended estimation of power loss in synchronous buck-boost DC/DC converter based on low voltage GaN E-HEMT power transistors. The…”
Get full text

Circulating Current in Parallel Connected Active Front End (AFE) Converters - Simulation Study by Koszel, Mikolaj, Grzejszczak, Piotr, Brzostek, Karol

“…Paralleling active front end (AFE) two-level converters is a good solution when high power and redundancy are needed. The connection of multiple converters in…”
Get full text

SIMES - Smart Integrated Modular Energy System for DC Microgrids with Energy Storages by Grzejszczak, Piotr, Koszel, Mikolaj, Barlik, Roman, Nowatkiewicz, Bartosz

“…This work presents the concept of a direct current microgrid, which effectively integrates energy sources, loads and storage devices within a territorially or…”
Get full text

Comparative study of two types of high-frequency transformers in a 20-kW Phase-Shifted Full Bridge converter application by Grzejszczak, Piotr, Wolski, Kornel, Brzostek, Karol, Sitnik, Adam

“…The paper presents a description of two types of high-frequency transformers with a power rating of over 20 kW - one made of planar cores and windings in the…”
Get full text

Switching losses in a new high-voltage MOSFETs by Grzejszczak, Piotr, Barlik, Roman

“…The paper presents a description of switching energy losses in high-voltage MOSFET operating in a bridge topology. Energy losses in both hard and soft…”
Get full text

DC Microgrid Power Flow Management System - Proof of Concept by Graniszewski, Waldemar, Grzejszczak, Piotr, Zdanowski, Mariusz, Sarwas, Grzegorz, Hryniow, Krzysztof, Iwanowski, Marcin, Slawinski, Maciej, Czajewski, Witold

“…The paper introduces a simulation model for managing power flow in a DC microgrid. The model enables the control of energy distribution within the microgrid's…”
Get full text

Design of a 20-kW SiC-Based Phase-Shifted DC/DC Full Bridge Converter by Grzejszczak, Piotr, Wolski, Kornel, Szmczak, Marek, Czaplicki, Adam, Sitnik, Adam

“…This article presented the high power and high frequency isolated DC/DC converter with all Silicon Carbide semiconductor devices. Design steps and experimental…”
Get full text

Power flow management algorithms for centralized controller in direct-current microgrid by Bzura, Kamil, Grzejszczak, Piotr, Rafal, Krzysztof, Szymczak, Marek

“…DC microgrids are definitely one of the global trends shaping the future of the energy sector. The prospective spread of distributed power generation systems…”
Get full text

Design of a high-efficiency three-phase three-level NPC converter based on GaN HEMT and SiC SB diode by Grzejszczak, Piotr, Kulpa, Adam, Barlik, Roman

“…The paper describes design and construction of a high-efficiency three-phase, three-level NPC grid-tied converter made entirely in wide-bandgap semiconductor…”
Get full text