Blar i Institutt for elkraftteknikk på tidsskrift "IEEE transactions on power electronics"
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An Adaptive Current-Source Gate Driver for High-Voltage SiC MOSFETs
(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 ... -
Energy-Based State-Space Representation of Modular Multilevel Converters with a Constant Equilibrium Point in Steady-State Operation
(Journal article; Peer reviewed, 2017)The internal currents and voltages of Modular Multilevel Converters (MMCs) contain multiple frequency components in steady state operation and remain time-periodic even when transformed into a synchronously rotating reference ... -
High voltage insulation design of coreless, planar PCB transformers for multi-MHz power supplies
(Peer reviewed; Journal article, 2021)This paper investigates the insulation design for printed, planar, coreless, and high-frequency transformers with high isolation-voltage. By using finite element analysis on 2D axial-symmetry, the transformer circuit ... -
HVDC Circuit Breakers: A Comprehensive Review
(Peer reviewed; Journal article, 2021)High Voltage Direct Current (HVDC) systems are now well-integrated into AC systems in many jurisdictions. The integration of Renewable Energy Sources (RESs) is a major focus and the role of HVDC systems is expanding. ... -
A Hybrid Current- and Voltage-Source Driver for Active Driving of Series-Connected SiC MOSFETs
(Peer reviewed; Journal article, 2024)The series-connection of silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors ( mosfet s) is an attractive way of increasing the blocking voltage capability of a switch. However, due to inherent transient ... -
A Hybrid Current- and Voltage-Source Driver for Active Driving of Series-Connected SiC MOSFETs
(Peer reviewed; Journal article, 2024)The series-connection of silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors ( mosfet s) is an attractive way of increasing the blocking voltage capability of a switch. However, due to inherent transient ... -
An Input-Voltage-Sharing Control Strategy of Input-Series Output-Parallel Isolated Bidirectional DC/DC Converter for DC Distribution Network
(Peer reviewed; Journal article, 2021)Input-series-output-parallel (ISOP) isolated bidirectional direct current (dc)/dc converter (IBdc) becomes a preferred scheme connecting high-voltage and low-voltage bus in dc distribution network. Input-voltage-sharing ... -
Magnetic Field Energy Harvesting in Railway
(Peer reviewed; Journal article, 2022)Magnetic field energy harvesting (MFEH) is a method by which a system can harness an ambient, alternating magnetic field in order to scavenge energy. Presented in this article is a novel application of the concept aimed ... -
Online Parameter Adjustment Method for Arm Voltage Estimation of the Modular Multilevel Converter
(Journal article; Peer reviewed, 2019)The method used to calculate insertion indexes plays an important role in determining the overall performance of the Modular Multilevel Converter (MMC). Direct voltage control, which is the simplest option, results in a ... -
Optimized Design of Multi-MHz Frequency Isolated Auxiliary Power Supply for Gate Drivers in Medium-Voltage Converters
(Peer reviewed; Journal article, 2020)This article presents the design and optimization of a suitable topology for an isolated dc–dc auxiliary power supply with high isolation voltage and low coupling capacitance. The converter consists of a GaN HEMT inverter ...