Blar i SINTEF Open på tidsskrift "IEEE Journal of Emerging and Selected Topics in Power Electronics"
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Configuration and model order selection of frequency-dependent π-models for representing dc-cables in small-signal eigenvalue analysis of HVDC transmission systems
(Peer reviewed; Journal article, 2020)Eigenvalue-based analysis of small-signal dynamics in High Voltage Direct Current (HVDC) transmission systems requires cable models that are compatible with a state-space representation. While distributed parameter models ... -
Control of Three-Phase Solid-State Transformer with Phase-Separated Configuration for Minimized Energy Storage Capacitors
(Journal article; Peer reviewed, 2019)This paper presents the control structure of a solidstate transformer for three-phase AC/AC, to reduce the required size of capacitors. The structure consists of an AC/DC converter based on cascaded H-bridge converters, ... -
Frequency and Parameter Combined Tuning Method of LCC-LCC Compensated Resonant Converter with Wide Coupling Variation for EV Wireless Charger
(Peer reviewed; Journal article, 2021)The characteristics of inductive power transfer (IPT) systems are sensitive to the variation of the coupling coefficient caused by misalignment conditions or different gaps. This results in a reduction in transferred power ... -
Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady State
(Journal article; Peer reviewed, 2018)Abstract: This paper demonstrates that the sum and difference of the upper and lower arm voltages are suitable variables for deriving a generalized state-space model of an MMC which settles at a constant equilibrium in ... -
Load Balancing of a Modular Multilevel Grid Interface Converter for Transformer-Less Large-Scale Wireless Electric Vehicle Charging Infrastructure
(Peer reviewed; Journal article, 2020)This paper analyses the requirements for load balancing of a new transformer-less grid interface topology for large-scale electric vehicle (EV) charging infrastructures. The proposed configuration utilizes a Modular ... -
Optimal Shaping of the MMC Circulating Currents for Preventing AC-side Power Oscillations from Propagating into HVDC Grids
(Journal article; Peer reviewed, 2019)A constrained optimization problem based on the Lagrange multipliers method is formulated to derive the circulating current references of Modular Multilevel Converters (MMC) directly in abc coordinates. The resulting ... -
A Robust Circuit and Controller Parameters Identification Method of Grid-Connected Voltage Source Converters Using Vector Fitting Algorithm
(Peer reviewed; Journal article, 2021)This article presents a vector fitting (VF) algorithmbased robust circuit and controller parameters identification method for grid-connected voltage source converters (VSCs). The dq-domain impedance frequency responses ...