Concept

Flexible AC transmission system

Related publications (142)

Linear Parameter-Varying Control of A Power-Synchronized Grid-Following Inverter

This paper proposes a Linear Parameter-Varying loop-shaping controller for a power-synchronized grid-following inverter (PSGFLI). This control strategy regulates the inverter output active and reactive power at the terminal instead of the point of connecti ...

2022

Characterizing the Reserve Provision Capability Area of Active Distribution Networks: A Linear Robust Optimization Method

Fabrizio Sossan, Mokhtar Bozorg, Mohsen Kalantar Neyestanaki

Distributed energy resources (DERs) installed in active distribution networks (ADNs) can be exploited to provide both active and reactive power reserves to the upper-layer grid (i.e., sub-transmission and transmission systems) at their connection point. Th ...

2021

Compilation of real-time control strategies for heterogeneous resources at MV and LV

Mario Paolone, Rahul Kumar Gupta, Plouton Grammatikos, Antonio Zecchino

Description of deliverable and goal 1.1. Executive summary The core of this activity is to provide distribution system operators with tools for the operation of utility-scale distributed battery energy storage systems (BESSs) in order to optimize the in ...

SCCER-FURIES2021

Hybrid Modular Multilevel Converter Design and Control for Variable Speed Pumped Hydro Storage Plants

Drazen Dujic, Milan Utvic, Miodrag Basic

Hybrid modular multilevel converter control and design for pumped hydro storage plants is presented, addressing application-specific shortcoming of conventional back-to-back half-bridge modular multilevel converter: high common-mode-voltage machine stress. ...

2021

Quasi-Two-Level PWM-Operated Modular Multilevel Converter With Nonlinear Branch Inductors

Jakub Kucka

Quasi-two-level PWM operation of modular multilevel converters enables very low module capacitance even at low machine speeds and high torques while the current distortion is tolerable. In this article, the application of nonlinear inductors together with ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021

Four Quadrant Bus-Tie Switch for Protection of Shipboard Power Systems

Drazen Dujic, Gabriele Ulissi

The desire to increase the voltage of DC shipboard power distribution networks to the medium voltage level derives from the pressure to reduce the operating costs of such systems by increasing their efficiency. Solid state bus-tie switches are accepted to ...

2020

Four Quadrant Bus-Tie Switch for Protection of Shipboard Power Systems

Drazen Dujic, Gabriele Ulissi

IEEE2020

97.4%-Efficient All-GaN Dual-Active-Bridge Converter with High Step-up High-Frequency Matrix Transformer

Elison de Nazareth Matioli, Armin Jafari, Palliyage Srilak Nirmana Perera

In this work, we demonstrate a state-of-the-art high step-up/down dual-active-bridge (DAB) converter designed with GaN transistors, to achieve a high efficiency and large power-density. A quasi-planar matrix transformer with high step-up/down ratio is demo ...

2020

Design Optimization of Two-Quadrant High-Current Low-Voltage Power Supply

Drazen Dujic, Émilien Luc Henri Coulinge, Serge Pittet

The high-current delivered by a dedicated power supply is the condicio sine qua non to obtain the strong magnetic field produced by superconducting magnets. The end goal of such power supply is to control the current, very precisely, across this distinctiv ...

2020

Design Optimization of Two-Quadrant High-Current Low-Voltage Power Supply

Drazen Dujic, Serge Pittet

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020

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