Publications by Styliani Sarri

Hardware-in-the-loop Validation of the Grid Explicit Congestion Notification Mechanism for Primary Voltage Control in Active Distribution Networks

Jean-Yves Le Boudec, Mario Paolone, Marco Pignati, Konstantina Christakou, Styliani Sarri, Roman Rudnik

The Grid Explicit Congestion Notification control mechanism (GECN) is a broadcast-based real-time demand- response mechanism designed for primary voltage control in Active Distribution Networks (ADNs) [1,2]. An extensive set of off-line simulations has ind ...

Università degli Studi di Genova, Italy2016

Methods and Performance Assessment of PMU-based Real-Time State Estimation of Active Distribution Networks

Styliani Sarri

The evolution from passive to Active Distribution Networks (ADNs) is producing large changes in the operation of these electrical systems. In particular, violations of grid operational constraints, higher dynamics and limited amount of controllable resourc ...

EPFL2016

Performance Assessment of Linear State Estimators Using Synchrophasor Measurements

Jean-Yves Le Boudec, Mario Paolone, Lorenzo Zanni, Styliani Sarri, Miroslav Popovic

This paper aims to assess the performance of linear state estimation (SE) processes of power systems relying on synchrophasor measurements. The performance assessment is conducted with respect to two different families of SE algorithms, i.e., static ones r ...

Institute of Electrical and Electronics Engineers2016

Real-Time State Estimation of the EPFL-Campus Medium-Voltage Grid by Using PMUs

Jean-Yves Le Boudec, Mario Paolone, Dan-Cristian Tomozei, Paolo Romano, Marco Pignati, Lorenzo Zanni, Sergio Barreto Andrade, Sidi-Rachid Cherkaoui, Teklemariam Tsegay Tesfay, Styliani Sarri

We describe the real-time monitoring infrastructure of the smart-grid pilot on the EPFL campus. We experimentally validate the concept of a real-time state-estimation for a 20 kV active distribution network. We designed and put into operation the whole inf ...

2015

An Information-Centric Communication Infrastructure for Real-Time State Estimation of Active Distribution Networks

Mario Paolone, Paolo Romano, Marco Pignati, Teklemariam Tsegay Tesfay, Styliani Sarri

The evolution toward emerging active distribution networks (ADNs) can be realized via a real-time state estimation (RTSE) application facilitated by the use of phasor measurement units (PMUs). A critical challenge in deploying PMU-based RTSE applications a ...

Ieee-Inst Electrical Electronics Engineers Inc2015

A Hardware-in-the-Loop test platform for the performance assessment of a PMU-based Real-Time State Estimator for Active Distribution Networks

Mario Paolone, Paolo Romano, Marco Pignati, Lorenzo Zanni, Styliani Sarri

The paper describes the development of a Hardware- in-the-Loop (HIL) test platform for the performance assessment of a PMU-based sub-second linear Real-Time State Estimator (RTSE) for Active Distribution Networks (ADNs). The estimator relies on the availab ...

IEEE2015

Probabilistic assessment of the process-noise covariance matrix of discrete Kalman filter state estimation of active distribution networks

Mario Paolone, Marco Pignati, Lorenzo Zanni, Sidi-Rachid Cherkaoui, Styliani Sarri

The accuracy of state estimators using the Kalman Filter (KF) is largely influenced by the measurement and the process noise covariance matrices. The former can be directly inferred from the available measurement devices whilst the latter needs to be asses ...

IEEE2014

A pre-estimation filtering process of bad data for linear power systems state estimators using PMUs

Jean-Yves Le Boudec, Mario Paolone, Marco Pignati, Lorenzo Zanni, Sidi-Rachid Cherkaoui, Styliani Sarri

The paper proposes a specific algorithm for the pre-estimation filtering of bad data (BD) in PMU-based power systems linear State Estimators (SEs). The approach is framed in the context of the so-called real-time SEs that take advantage of the high measure ...

Wroclaw University of Technology2014

A Hardware-in-the-Loop Test Platform for the Real-Time State Estimation of Active Distribution Networks using Phasor Measurement Units

Mario Paolone, Paolo Romano, Marco Pignati, Lorenzo Zanni, Sidi-Rachid Cherkaoui, Styliani Sarri

The paper describes the development and the performance assessment of a Hardware-in-the-Loop (HIL) test platform built as a proof-of-concept of a sub-second State Estimator (SE) of Active Distribution Networks (ADNs). The SE relies on the availability of d ...

Cigré - Conseil International des Grands Réseaux Électriques2013

State Estimation of Active Distribution Networks: Comparison Between WLS and Iterated Kalman-Filter Algorithm Integrating PMUs

Mario Paolone, Sidi-Rachid Cherkaoui, Carlo Alberto Nucci, Styliani Sarri

One of the challenging tasks related to the realtime control of Active Distribution Networks (ADNs) is represented by the development of fast (i.e. sub-second) state estimation (SE) processes. As known, the problem of SE of power networks links the measure ...

IEEE Power Engineering Society and Technische Universität Berlin, Germany2012