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About

Bernardo Silva completed the Integrated Master Degree in Electrical and Computer Engineering at FEUP, specializing in energy systems. In 2014 he completed his PhD in Sustainable Energy Systems at FEUP / MIT Portugal. Since joining INESCTEC in March 2009, he has been involved in scientific projects and consulting in the area of integration of renewable sources in the electrical system as well as in the steady state and dynamic analysis of electrical systems. Since 2016 Portuguese representative on the Committee B4 (HVDC) of Cigré. Awards: Honorable Mention - 2009 REN Award - with the thesis of Master Winner of the APREN 2016 Award with the PhD thesis.

Interest
Topics
Details

Details

027
Publications

2020

Local Market for TSO and DSO Reactive Power Provision Using DSO Grid Resources

Authors
Retorta, F; Aguiar, J; Rezende, I; Villar, J; Silva, B;

Publication
Energies

Abstract
This paper proposes a near to real-time local market to provide reactive power to the transmission system operator (TSO), using the resources connected to a distribution grid managed by a distribution system operator (DSO). The TSO publishes a requested reactive power profile at the TSO-DSO interface for each time-interval of the next delivery period, so that market agents (managing resources of the distribution grid) can prepare and send their bids accordingly. DSO resources are the first to be mobilized, and the remaining residual reactive power is supplied by the reactive power flexibility offered in the local reactive market. Complex bids (with non-curtailability conditions) are supported to provide flexible ways of bidding fewer flexible assets (such as capacitor banks). An alternating current (AC) optimal power flow (OPF) is used to clear the bids by maximizing the social welfare to supply the TSO required reactive power profile, subject to the DSO grid constraints. A rolling window mechanism allows a continuous dispatching of reactive power, and the possibility of adapting assigned schedules to real time constraints. A simplified TSO-DSO cost assignment of the flexible reactive power used is proposed to share for settlement purposes.

2019

Optimal bidding strategy for variable-speed pump storage in day-ahead and frequency restoration reserve markets

Authors
Filipe, J; Bessa, RJ; Moreira, C; Silva, B;

Publication
Energy Systems

Abstract

2019

Handling Renewable Energy Variability and Uncertainty in Power System Operation

Authors
Bessa, R; Moreira, C; Silva, B; Matos, M;

Publication
Advances in Energy Systems

Abstract

2018

Testing of smart converters for grid-code compliance with power-hardware-in-the-loop

Authors
Ramos, JC; Aguiar, J; Rodrigues, J; Silva, B;

Publication
2018 INTERNATIONAL CONFERENCE ON SMART ENERGY SYSTEMS AND TECHNOLOGIES (SEST)

Abstract
Using power-hardware-in-the-loop is a solution for testing the behavior of devices on an emulated grid, with greater flexibility and avoiding the introduction of disturbances or critical operating conditions in the utility grid. This paper highlights the implementation of such a setup, its challenges and the solutions to cope with its limitations. The emulated grid is then used for the experimental validation of a 10kVA converter, regarding fault-ride-through, dynamic reactive current support and frequency and voltage based droop control, leading to the identification of design improvement recommendations.

2017

Identification of Dynamic Simulation Models for Variable Speed Pumped Storage Power Plants

Authors
Moreira, C; Fulgencio, N; Silva, B; Nicolet, C; Beguin, A;

Publication
Journal of Physics: Conference Series

Abstract
This paper addresses the identification of reduced order models for variable speed pump-turbine plants, including the representation of the dynamic behaviour of the main components: hydraulic system, turbine governors, electromechanical equipment and power converters. A methodology for the identification of appropriated reduced order models both for turbine and pump operating modes is presented and discussed. The methodological approach consists of three main steps: 1) detailed pumped-storage power plant modelling in SIMSEN; 2) reduced order models identification and 3) specification of test conditions for performance evaluation. © Published under licence by IOP Publishing Ltd.

Supervised
thesis

2019

Fast Assessment of Dynamic Behavior Analysis with Evaluation of Minimum Synchronous Inertia to Improve Dynamic Security in Islanded Power Systems

Author
João Pedro da Silva Megre Barbosa

Institution
UP-FEUP