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About

About

Nascido no Porto em 1962, licenciado em Engenharia Eletrotécnica em 1985, Mestrado em Engenharia Eletrotécnica e Computadores em 1991 e Doutor em Engenharia Eletrotécnica e Computadores em 1999 pela FEUP. Professor na FEUP desde 1987, Investigador do INESC desde 1987, Diretor da Qualidade entre 1993 e 1994, responsável pela certificação de uma empresa de módulos electrónicos - ramo automóvel. Coordenador do Colégio de Eletrotecnia da Ordem dos Engenheiros da Região Norte. Participação em Peritagens, Auditorias Energéticas e Projetos nacionais e europeus.

Interest
Topics
Details

Details

  • Name

    José Rui Ferreira
  • Role

    Senior Researcher
  • Since

    25th October 1985
008
Publications

2023

Optmization algorithm for the charging management of electric vehicles in multi-dwelling residential buildings

Authors
Carvalhosa, SM; Ferreira, JRDP; Araújo, RE;

Publication
2023 IEEE VEHICLE POWER AND PROPULSION CONFERENCE, VPPC

Abstract
This paper presents a new strategy for recharging electric vehicles in residential buildings. The proposed approach minimizes the difference between desired and final state of charge (SOC) by the end of the charging period, by adjusting the charging power for each vehicle in real-time. A non-linear optimization problem is formulated, considering the initial and final SOC, as well as available charging time, and total available power. Results were compared to a baseline and show that the proposed solution outperforms the currently most used nonoptimized method, particularly in high demand scenarios, where we achieve values of 9.3% of curtailed range when compared with the non-optimized methodology.

2021

A techno-economic analysis of floating photovoltaic systems, for southern european countries

Authors
Baptista J.; Vargas P.; Ferreira J.R.;

Publication
Renewable Energy and Power Quality Journal

Abstract
In the last few decades, the vast majority of world states have faced increased energy consumption using more environmentally friendly production technologies. The use of traditional renewable energies like hydro, wind and solar has been the solution found. Despite this, new technical solutions and strategies are beginning to emerge, of which Floating Solar Photovoltaic (FSPV) systems are part. In this framework, southern European countries have excellent climate conditions for reinforcing the use of solar energy. This research assess the existing Portuguese potential for floating PV systems and its integration in the power grid. A floating solar power plant of 1MW in Gouvães dam included in the Tâmega hydroelectric complex, under construction in northern Portugal was sizing and evaluated its energy potential. A techno-economic feasibility study was also carried out taking into account the current investment costs and energy tariffs in the Iberian liberalized market. This integrated analysis allowed to obtain important results on the current state of the art, types of technologies available, their costs and the payback period for this type of projects.

2017

Domestic appliances energy optimization with model predictive control

Authors
Rodrigues, EMG; Godina, R; Pouresmaeil, E; Ferreira, JR; Catalao, JPS;

Publication
ENERGY CONVERSION AND MANAGEMENT

Abstract
A vital element in making a sustainable world is correctly managing the energy in the domestic sector. Thus, this sector evidently stands as a key one for to be addressed in terms of climate change goals. Increasingly, people are aware of electricity savings by turning off the equipment that is not been used, or connect electrical loads just outside the on-peak hours. However, these few efforts are not enough to reduce the global energy consumption, which is increasing. Much of the reduction was due to technological improvements, however with the advancing of the years new types of control arise. Domestic appliances with the purpose of heating and cooling rely on thermostatic regulation technique. The study in this paper is focused on the subject of an alternative power management control for home appliances that require thermal regulation. In this paper a Model Predictive Control scheme is assessed and its performance studied and compared to the thermostat with the aim of minimizing the cooling energy consumption through the minimization of the energy cost while satisfying the adequate temperature range for the human comfort. In addition, the Model Predictive Control problem formulation is explored through tuning weights with the aim of reducing energetic consumption and cost. For this purpose, the typical consumption of a 24 h period of a summer day was simulated a three-level tariff scheme was used. The new contribution of the proposal is a modulation scheme of a two-level Model Predictive Control's control signal as an interface block between the Model Predictive Control output and the domestic appliance that functions as a two-state power switch, thus reducing the Model Predictive Control implementation costs in home appliances with thermal regulation requirements.

2017

DC/DC boost converter controller

Authors
Ferreira J.;

Publication
U.Porto Journal of Engineering

Abstract
The DC/DC boost converter is described as a time variant system. State-Space is one of the methods used to approach a time variant system to an invariant time linear system. The present document focuses on a comparative approach of output voltage regulation and system stability and performance. For this document, there were made MatLab tests of PI and PD controllers, with and without fuzzy control.

2016

The IEC 61850 in the Portuguese distribution substations: Contemporary challenges and possible solutions

Authors
Leite, H; Martins, D; Ferreira, J; Pinto, A;

Publication
IET Conference Publications

Abstract
Interoperability may be defined as the ability of intelligent electronic devices (IED's) to exchange and use information correctly. Although the IEC 61850 standards define a consistent methodology for interconnecting IEDs in substation using LAN based technologies to promote interoperability, this ability to exchange information correctly is not always achieved between different IED's from different manufactures. This paper reports the assessment of IED's, featured with IEC 61850 standards and connected to the same communication network from different manufactures. Different interoperability tests are performed and the difficulty and challenges to exchange and receive information is also reported. Possible solutions on the XML schema to generate a compliant SCL file as well as the way to scale up the standardization of the substation project is also explored and discussed in this paper.

Supervised
thesis

2023

Dimensionamento de Centrais Fotovoltaicas, para Projetos de Comunidades de Energia Renovável

Author
Pedro Manuel Rocha e Castro Lopes da Costa

Institution
UP-FEUP

2023

Development of an Electric-Vehicle Charging Management System with Smart Scheduling for Existing Condominiums Using Available Power in Real-Time

Author
Salvador Moreira Paes Carvalhosa

Institution
UP-FEUP

2023

Coordenação e seletividade de proteções

Author
Ana Sofia Félix Cardoso

Institution
UP-FEUP

2023

Sistema de Gestão de Créditos em Comunidades de Energia

Author
Bruno Emanuel Leite Oliveira

Institution
UP-FEUP

2022

Dimensionamento da Rede de Terras em Subestações de Distribuição e Aplicação no Projeto de uma Subestação Real

Author
Luís Pedro Pina Matias Baetas

Institution
UP-FEUP