Browsing Institutt for teknisk kybernetikk by Author "D'Arco, Salvatore"
Now showing items 1-20 of 32
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A Modular Multilevel Interface for Transformerless Grid Integration
Guidi, Giuseppe; D'Arco, Salvatore; Suul, Jon Are Wold; Ryosuke, Iso; Itoh, Jun-Ichi (Chapter, 2019)This paper presents a system configuration for transformer-less grid integration of large-scale charging infrastructures for electric vehicles (EVs) with wireless inductive charging. The proposed configuration relies on a ... -
Applying Vector Fitting for Measurement-based Multiple-Input Multiple-Output Model Identification of a Grid-Forming Converter
Reis, Lisa; Smith, Andrew MacMillan; D'Arco, Salvatore; Suul, Jon Are Wold (Chapter, 2023)This paper presents an approach for applying Vector Fitting (VF) to identify a small-signal state-space model of a power electronic converter represented as a multiple-input multiple-output (MIMO) system. A workflow for ... -
Black-boxing of Converter State-Space Models for Power System Eigenvalue Analysis
Smith, Andrew Macmillan; Tutturen, Trond Markus; D'Arco, Salvatore; Suul, Jon Are Wold (Chapter, 2024)State-space models are useful for a wide range of power system analyses relying on eigenvalue-based small-signal stability assessment. However, state-space models for detailed analysis of power converter dynamics are ... -
Comparative Analysis of Small-Signal Dynamics in Virtual Synchronous Machines and Frequency-Derivative-Based Inertia Emulation
Suul, Jon Are Wold; D'Arco, Salvatore (Chapter, 2018)This paper presents a comparison of small-signal dynamics for a current controlled Virtual Synchronous Machine (VSM), a voltage controlled VSM and a df/dt-based control strategy for inertia emulation. The comparison is ... -
Comparative Evaluation of Virtual Inertia and Fast Frequency Reserve Provided by HVDC Terminals
Garcia Rosa, Paula Bastos; D'Arco, Salvatore; Suul, Jon Are Wold (Chapter, 2022)This paper compares the impact on power system frequency transients from virtual inertia and Fast Frequency Reserve (FFR) provided by HVDC converters. Specifically, frequency nadir, Rate-of-Change-of-Frequency (RoCoF), and ... -
Coupling of AC Grids via VSC-HVDC Interconnections for Oscillation Damping based on Differential and Common Power Control
Rodriguez-Cabero, Alberto; Perez, Javier; Prodanovic, Milan; Suul, Jon Are Wold; D'Arco, Salvatore (Journal article; Peer reviewed, 2019)This paper presents a control approach for HVDC interconnections that provides damping of frequency oscillations in asynchronous ac grids by introducing a virtual friction for coupling their inertial dynamics. The HVDC ... -
A Current Controlled Virtual Synchronous Machine Adapted for Operation under Unbalanced Conditions
Avdiaj, Eros; Suul, Jon Are Wold; D'Arco, Salvatore; Piegari, Luigi (Chapter, 2020)This paper presents a comprehensive evaluation of control strategies for operation of a Virtual Synchronous Machine (VSM) under unbalanced conditions in both grid-connected and islanded mode. The basis for the evaluation ... -
Eigenvalue-based analysis of small-signal dynamics and stability in DC grids
D'Arco, Salvatore; Beerten, Jef; Suul, Jon Are Wold (Chapter, 2021)In this chapter, we discuss a modular approach for state-space modeling and eigenvalue-based analysis of small-signal dynamics in DC grids. We first introduce the requirements for state-space representation and linearization ... -
Evaluation of a modular system topology for large-scale wireless EV charging in a commercial parking facility
Guidi, Giuseppe; D'Arco, Salvatore; Suul, Jon Are Wold (Chapter, 2021)This paper evaluates the operation of a modular transformer-less grid interface topology for large-scale wireless charging of electric vehicles (EVs) under a loading scenario for a commercial parking facility. The studied ... -
Evaluation of Inertia Emulation Strategies for DC- Voltage-Controlled and Power-Controlled Converter Stations in HVDC Interconnections
Puricelli, Francesco Giacomo; D'Arco, Salvatore; Suul, Jon Are Wold; Piegari, Luigi (Chapter, 2020)This paper presents an evaluation of two control schemes for virtual inertia support from the converter terminals of an HVDC interconnection. A point-to-point interconnection between asynchronous power systems is assumed, ... -
Evaluation of Virtual Inertia Control Strategies for MMC-based HVDC Terminals by P-HiL Experiments
D'Arco, Salvatore; Nguyen, Tuan Thanh; Suul, Jon Are Wold (Chapter; Peer reviewed, 2019)This paper presents an experimental performance evaluation of different control strategies for providing virtual inertia from power electronic converters. The evaluation is based on a laboratory-scale prototype of a ... -
Frequency-Adaptive Energy Control for Grid-Forming MMCs Under Unbalanced Conditions
Avdiaj, Eros; D'Arco, Salvatore; Piegari, Luigi; Suul, Jon Are Wold (Peer reviewed; Journal article, 2023)This paper presents a frequency-adaptive energy control strategy for a Modular Multilevel Converter (MMC) which is suitable for grid-forming operation under unbalanced conditions. The average components of the energy sum ... -
Frequency-Adaptive Energy Control for Grid-Forming MMCs Under Unbalanced Conditions
Avdiaj, Eros; D'Arco, Salvatore; Piegari, Luigi; Suul, Jon Are Wold (Peer reviewed; Journal article, 2023)This paper presents a frequency-adaptive energy control strategy for a Modular Multilevel Converter (MMC) which is suitable for grid-forming operation under unbalanced conditions. The average components of the energy sum ... -
Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady-State
Bergna-Diaz, Gilbert; Freytes, Julian; Guillaud, Xavier; D'Arco, Salvatore; Suul, Jon Are Wold (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 ... -
Improved Pole Placement and Compaction of MIMO Vector Fitting Applied to System Identification
Smith, Andrew MacMillan; D'Arco, Salvatore; Suul, Jon Are Wold (Peer reviewed; Journal article, 2024)In this work we address the modeling of multi-port subsystems with unknown inner dynamics by utilizing vector fitting to identify state-space models for performing eigenvalue-based analysis. Vector fitting is used to ... -
Improving the Power Reference Tracking of Virtual Synchronous Machines by Feed-Forward Control
D'Arco, Salvatore; Suul, Jon Are Wold (Chapter, 2021)This paper presents a feed-forward control method for improving the power reference tracking performance of Virtual Synchronous Machines (VSMs) without compromising their main features in terms of grid forming capability ... -
Load Balancing of a Modular Multilevel Grid Interface Converter for Transformer-Less Large-Scale Wireless Electric Vehicle Charging Infrastructure
Guidi, Giuseppe; D'Arco, Salvatore; Nishikawa, Koudai; Suul, Jon Are Wold (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 ... -
Modeling and analysis of interoperability between gridforming converters in offshore power grids
Tørlen, Guro Fjeldvig (Master thesis, 2024)Denne masteroppgaven undersøker interoperabiliteten mellom nettformende omformere i HVDC-tilkoblede offshore vindparker. Med veksten av offshore vindparker øker behovet for HVDC-tilkoblinger. Effektive kontrollstrategier ... -
Multi-Hardware-in-the-Loop Laboratory Testing of Power Converters and Intelligent Electronic Devices for Large-Scale Power System Applications
D'Arco, Salvatore; Sanchez Acevedo, Santiago; Suul, Jon Are Wold (Journal article; Peer reviewed, 2024)This paper presents an approach and a corresponding laboratory infrastructure for multi-hardware-in-the-loop (M-HiL) testing of power converters and intelligent electronic devices (IEDs) with wide area features for power ... -
Negative Sequence Control for Virtual Synchronous Machines Under Unbalanced Conditions
Avdiaj, Eros; D'Arco, Salvatore; Piegari, Luigi; Suul, Jon Are Wold (Peer reviewed; Journal article, 2022)In this paper, five strategies for controlling the negative sequence currents of a Virtual Synchronous Machine (VSM) under unbalanced conditions are comparatively assessed, considering both grid-connected and islanded ...