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About

I'm graduated in Electrical Engineering from the University of Trás-os-Montes e Alto Douro (UTAD), Portugal in 1991. I have obtained the M.Sc. degree in Power Electronics in 1997 from UTAD and the Ph.D. degree in Electrical Engineering (Harmonic distortion analysis on the LV distribution networks) in 2007 from UTAD. Presently, I'm an Auxiliar Professor in the Department of Electrical Engineering, UTAD and also a INESCTEC researcher in power quality, electrical machines and renewables. My main interest areas are power quality, electrical machines and renewables.

Interest
Topics
Details

Details

  • Name

    José Ribeiro Baptista
  • Cluster

    Power and Energy
  • Role

    Affiliated Researcher
  • Since

    01st October 2012
Publications

2022

Wind Energy Assessment for Small Wind Turbines in Different Roof Shapes Based on CFD Simulations

Authors
Oliveira, C; Cerveira, A; Baptista, J;

Publication
Lecture Notes in Networks and Systems

Abstract

2022

State of the Art of Wind and Power Prediction for Wind Farms

Authors
Puga, R; Baptista, J; Boaventura, J; Ferreira, J; Madureira, A;

Publication
Lecture Notes in Networks and Systems

Abstract
There are different clean energy production technologies, including wind energy production. This type of energy, among renewable energies, is one of the least predictable due to the unpredictability of the wind. The wind prediction has been a deeply analysed field since has a considerable share on the green energy production, and the investments on this sector are growing. The efficiency and stability of power production can be increased with a better prediction of the main source of energy, in our case the wind. In this paper, some techniques inspired by “Biological Inspired Optimization Techniques” applied to wind forecast are compared. The wind forecast is very important to be able to estimate the electric energy production in the wind farms. As you know, the energy balance must be checked in the electrical system at every moment. In this study we are going to analyse different methodologies of wind and power prediction for wind farms to understand the method with best results. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

2022

Supraharmonic and Harmonic Emissions of a Bi-Directional V2G Electric Vehicle Charging Station and Their Impact to the Grid Impedance

Authors
Grasel, B; Baptista, J; Tragner, M;

Publication
Energies

Abstract
Bidirectional electric vehicle supply equipment and charging stations (EVSE) offer new business models and can provide services to the electrical grid. The smart grid lab in Vienna gives unique testing possibilities of future smart grids, as different type of electrical equipment can be operated at a reconstructed, well-known distribution grid. In this work the harmonic and supraharmonic emissions of a bidirectional EVSE are measured according to IEC61000-4-7 and IEC61000-4-30 Ed3 standard as well as the high-frequency grid impedance. In addition, the efficiency and the power factor are determined at various operating points. Although THDi at nominal power (10 kW) is very low and the efficiency and power factor is very high, at low power levels the opposite situation arise. Supraharmonic emissions remain stable independent of the charging/discharging power, and both wideband and narrowband emissions occur. The additional capacitance when connecting the EVSE impacts the high-frequency grid impedance substantially and generates resonance points.

2021

Wind Farm Cable Connection Layout Optimization with Several Substations

Authors
Cerveira, A; Pires, EJS; Baptista, J;

Publication
ENERGIES

Abstract
Green energy has become a media issue due to climate changes, and consequently, the population has become more aware of pollution. Wind farms are an essential energy production alternative to fossil energy. The incentive to produce wind energy was a government policy some decades ago to decrease carbon emissions. In recent decades, wind farms were formed by a substation and a couple of turbines. Nowadays, wind farms are designed with hundreds of turbines requiring more than one substation. This paper formulates an integer linear programming model to design wind farms' cable layout with several turbines. The proposed model obtains the optimal solution considering different cable types, infrastructure costs, and energy losses. An additional constraint was considered to limit the number of cables that cross a walkway, i.e., the number of connections between a set of wind turbines and the remaining wind farm. Furthermore, considering a discrete set of possible turbine locations, the model allows identifying those that should be present in the optimal solution, thereby addressing the optimal location of the substation(s) in the wind farm. The paper illustrates solutions and the associated costs of two wind farms, with up to 102 turbines and three substations in the optimal solution, selected among sixteen possible places. The optimal solutions are obtained in a short time.

2021

An Optimization Model for Scheduling of Households Load Profiles Incorporating Electric Vehicles Charging

Authors
Barros, P; Cerveira, A; Baptista, J;

Publication
Advances in Intelligent Systems and Computing - Intelligent Systems Design and Applications

Abstract

Supervised
thesis

2021

Otimização de sistemas de autoconsumo baseados no potencial eólico para edifícios de elevada altura

Author
Carlos José Seabra Costa Oliveira

Institution
UTAD

2021

Estudo da viabilidade económica da integração de aerogeradores de baixa potência em pequenos edifícios industriais

Author
Tiago Afonso da Cruz Barbosa

Institution
UTAD

2021

Avaliação de Cibersegurança em Infraestruturas Críticas

Author
Joana Isabel Ferreira Miranda

Institution
UTAD

2021

Otimização da exploração de redes de distribuição com integração de centrais elétricas virtuais

Author
Joana Moura Pereira Duro

Institution
UTAD

2021

Avaliação do impacto que as estações de carregamento de veículos elétricos têm na qualidade da energia elétrica

Author
José Augusto Sampaio da Costa

Institution
UTAD