Blar i NTNU Open på forfatter "D'Arco, Salvatore"
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Impedance computation for power electronic converters with Hilbert transform
Sanchez Acevedo, Santiago; Tedeschi, Elisabetta; Bergna-Diaz, Gilbert; D'Arco, Salvatore; Sanz, Marina (Chapter, 2017)The Hilbert transform (HT) is widely used in signal processing and it has been found as a good tool to understand some physical phenomena in electrical systems. This paper presents a methodology to derive the input impedance ... -
Improving Small-Signal Stability of an MMC with CCSC by Control of the Internally Stored Energy
Freytes, Julian; Bergna Diaz, Gilbert; Suul, Jon Are Wold; D'Arco, Salvatore; Gruson, Francois; Colas, Frederic; Saad, Hani; Guillaud, Xavier (Journal article; Peer reviewed, 2017)The DC-side dynamics of Modular Multilevel Converters (MMCs) can be prone to poorly damped oscillations or stability problems when the second harmonic components of the arm currents are mitigated by a Circulating Current ... -
Lab Setup and Testing of Lithium-Ion Batteries with Focus on Dynamic and Aging Modeling
Molund, Eirik (Master thesis, 2013)This report presents the work on making a lab setup for testing of different types of batteries in the energy storage lab at NTNU/SINTEF. A complete lab setup has been made and two different LiFePO4 chemistry cells of size ... -
Online Parameter Adjustment Method for Arm Voltage Estimation of the Modular Multilevel Converter
Taffese, Abel Assegid; de Jong, Erik; D'Arco, Salvatore; Tedeschi, Elisabetta (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 ... -
Operation of a mudular multilevel converter controlled as a Virtual synchronous machine
D'Arco, Salvatore; Guidi, Giuseppe; Suul, Jon Are Wold (Chapter, 2018)Modular multilevel converters (MMC) have been a research focus in high-voltage power conversion, covering modulation techniques, capacitor voltage balancing and circulating current control. In this paper, a control method ... -
Power oscillation damping with virtual capacitance support from modular multilevel converters
Taffese, Abel Assegid; Endegnanew, Atsede Gualu; D'Arco, Salvatore; Tedeschi, Elisabetta (Journal article; Peer reviewed, 2019)Power oscillation damping (POD) is one of the ancillary services expected from high-voltage direct current (HVDC) converters. When providing POD to the ac side, converters draw power from the dc side, which can cause ... -
Small-signal model analysis of droop-controlled modular multilevel converters with circulating current suppressing controller
Freytes, Julian; Bergna Diaz, Gilbert; Suul, Jon Are Wold; D'Arco, Salvatore; Saad, Hani; Guillaud, Xavier (Chapter, 2017)This paper presents a small signal eigenvalue analysis applied to a droop-controlled HVDC terminal based on the Modular Multilevel Converter (MMC) topology. The applied linearised model is derived from previous modelling ... -
Small-signal modeling and parametric sensitivity of a virtual synchronous machine in islanded operation
D'Arco, Salvatore; Suul, Jon Are Wold; Fosso, Olav B (Peer reviewed; Journal article, 2015)The concept of Virtual Synchronous Machines (VSMs) is emerging as a flexible approach for controlling power electronic converters in grid-connected as well as in stand-alone or microgrid applications. Several VSM implementations ... -
State-space modelling with steady-state time invariant representation of energy based controllers for modular multilevel converters
Freytes, Julian; Bergna-Diaz, Gilbert; Suul, Jon Are Wold; D'Arco, Salvatore; Saad, Hani; Guillaud, Xavier (Chapter, 2017)The average value model of the Modular Multilevel Converter (MMC) is in general non-linear with time periodic variables. Recent developments demonstrated how the MMC model can be transformed into a a Steady-State Time ... -
Time-Invariant State-Space model of an AC Cable by dq-representation of Frequency-Dependent π-sections
D'Arco, Salvatore; Suul, Jon Are Wold; Beerten, Jef (Chapter, 2019)This paper introduces an approach for frequency-dependent pi-section (FD- π) modelling of ac cables which enables a time-invariant state-space representation that accounts for the frequency-dependent cable characteristics. ... -
Virtual synchronous machine-based control of a single-phase bi-directional battery charger for providing vehicle-to-grid services
Suul, Jon Are Wold; D'Arco, Salvatore; Guidi, Giuseppe (Journal article; Peer reviewed, 2016)This paper presents a single-phase Virtual Synchronous Machine (VSM) and its possible application for providing Vehicle-to-Grid (V2G) services from domestic battery chargers of Electric Vehicles (EVs). In a VSM, the power ...