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About

About

Fábio Sester Retorta is an electrical engineer graduated at the Federal University of Paraná (UFPR). During his time in Brazil, he worked for 3 years with ANEEL R & D projects and services in the area of electric power quality by the company Lactec. Fábio earned his master's degree in UFPR with the theme of an ANEEL R & D project being awarded 1 place in the CIGRE Showcase Paris 2018. Since 2015 the researcher has been contributing with publications in international events, chapters of Brazilian books and Brazilian periodicals. The researcher has been working with the themes: electric power quality of wind farms / GD, operation of distributed generation, storage systems, solar thermal energy (CSP), rural electrification, multicriteria methodologies, fuzzy systems, optimization, forecasting methods, and planning of distribution systems. Fábio has taught classes at SENAI and CEPS (technical schools in Brazil) and is a member of the C6 group of CIGRÉ. He currently works at CPES with topics related to energy markets, deregulated electricyty markets, flexibilities in electricity markets, OPF and optimization methods

Interest
Topics
Details

Details

  • Name

    Fábio Retorta
  • Cluster

    Power and Energy
  • Role

    Research Assistant
  • Since

    18th February 2019
003
Publications

2022

A Data-driven Approach to Estimate the Flexibility Maps in Multiple TSO-DSO Connections

Authors
Silva, J; Sumaili, J; Silva, B; Carvalho, L; Retorta, F; Staudt, M; Miranda, V;

Publication
IEEE Transactions on Power Systems

Abstract

2022

Local flexibility need estimation based on distribution grid segmentation

Authors
Retorta, F; Gouveia, C; Sampaio, G; Bessa, R; Villar, J;

Publication
International Conference on the European Energy Market, EEM

Abstract
This work presents a methodology to segment the MV electric grid into grid zones for which the active power flexibility needs that solve the forecasted voltage and current issues are computed. This methodology enables the Distribution System Operator (DSO) to publish flexibility needs per zones, allowing aggregators to offer flexibility by optimizing their portfolio of resources in each grid zone. A case study is used to support the methodology results and its performance, showing the feasibility of solving grid issues by activating flexibility per grid zones according to the proposed methodology. © 2022 IEEE.

2022

Euniversal's smart grid solutions for the coordinated operation & planning of MV and LV networks with high EV integration

Authors
Sampaio, G; Gouveia, C; Bessa, R; Villar, J; Retorta, F; Carvalho, L; Merckx, C; Benothman, F; Promel, F; Panteli, M; Mourão, RL; Louro, M; Águas, A; Marques, P;

Publication
CIRED Porto Workshop 2022: E-mobility and power distribution systems

Abstract

2022

Grid flexibility services from local energy markets: a three-stage model

Authors
Rocha, R; Retorta, F; Mello, J; Silva, R; Gouveia, C; Villar, J;

Publication
TECHNOLOGIES, MARKETS AND POLICIES: BRINGING TOGETHER ECONOMICS AND ENGINEERING

Abstract
This paper proposes an energy community management system for local energy sharing with grid flexibility services to solve the potential grid constraints of the local distribution network. A three-stage model is proposed. Stage 1 is the individual minimization of the energy bill of each prosumer by optimizing the schedules of its battery. The second stage optimizes the energy bill of the energy community by sharing internally the prosumers energy surplus and re-dispatching their batteries, while guaranteeing that each new individual prosumer energy bill is always equal or less than its stage 1 bill. The third stage is performed by the DSO to solve the grid constraints by re-dispatching the batteries, curtailing local generation or reducing consumption. Stage 3 minimizes the impact on stage 2 by minimizing the loss of profit or utility of every prosumer which is compensated accordingly.

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.