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About

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

    Senior Researcher
  • Since

    01st October 2012
Publications

2024

Contextual Rule-Based System for Brightness Energy Management in Buildings

Authors
Ferreira, V; Pinto, T; Baptista, J;

Publication
ELECTRONICS

Abstract
The increase in renewable generation of a distributed nature has brought significant new challenges to power and energy system management and operation. Self-consumption in buildings is widespread, and with it rises the need for novel, adaptive and intelligent building energy management systems. Although there is already extensive research and development work regarding building energy management solutions, the capabilities for adaptation and contextualization of decisions are still limited. Consequently, this paper proposes a novel contextual rule-based system for energy management in buildings, which incorporates a contextual dimension that enables the adaptability of the system according to diverse contextual situations and the presence of multiple users with different preferences. Results of a case study based on real data show that the contextualization of the energy management process can maintain energy costs as low as possible, while respecting user preferences and guaranteeing their comfort.

2024

Allocation of national renewable expansion and sectoral demand reduction targets to municipal level

Authors
Schneider, S; Parada, E; Sengl, D; Baptista, J; Oliveira, PM;

Publication
FRONTIERS IN SUSTAINABLE CITIES

Abstract
Despite the ubiquitous term climate neutral cities, there is a distinct lack of quantifiable and meaningful municipal decarbonization goals in terms of the targeted energy balance and composition that collectively connect to national scenarios. In this paper we present a simple but useful allocation approach to derive municipal targets for energy demand reduction and renewable expansion based on national energy transition strategies in combination with local potential estimators. The allocation uses local and regional potential estimates for demand reduction and the expansion of renewables and differentiates resulting municipal needs of action accordingly. The resulting targets are visualized and opened as a decision support system (DSS) on a web-platform to facilitate the discussion on effort sharing and potential realization in the decarbonization of society. With the proposed framework, different national scenarios, and their implications for municipal needs for action can be compared and their implications made explicit.

2024

The impact of V2G charging stations (active power electronics) to the higher frequency grid impedance

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

Publication
Sustainable Energy, Grids and Networks

Abstract

2023

Self-Sustainability Assessment for a High Building Based on Linear Programming and Computational Fluid Dynamics

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

Publication
ALGORITHMS

Abstract
With excess energy use from non-renewable sources, new energy generation solutions must be adopted to make up for this excess. In this sense, the integration of renewable energy sources in high-rise buildings reduces the need for energy from the national power grid to maximize the self-sustainability of common services. Moreover, self-consumption in low-voltage and medium-voltage networks strongly facilitates a reduction in external energy dependence. For consumers, the benefits of installing small wind turbines and energy storage systems include tax benefits and reduced electricity bills as well as a profitable system after the payback period. This paper focuses on assessing the wind potential in a high-rise building through computational fluid dynamics (CFD) simulations, quantifying the potential for wind energy production by small wind turbines (WT) at the installation site. Furthermore, a mathematical model is proposed to optimize wind energy production for a self-consumption system to minimize the total cost of energy purchased from the grid, maximizing the return on investment. The potential of a CFD-based project practice that has wide application in developing the most varied processes and equipment results in a huge reduction in the time and costs spent compared to conventional practices. Furthermore, the optimization model guarantees a significant decrease in the energy purchased at peak hours through the energy stored in energy storage systems (ESS). The results show that the efficiency of the proposed model leads to an investment amortization period of 7 years for a lifetime of 20 years.

2023

A Quantitative Positive Energy District Definition with Contextual Targets

Authors
Schneider, S; Zelger, T; Sengl, D; Baptista, J;

Publication
BUILDINGS

Abstract
This paper presents the goals and components of a quantitative energy balance assessment framework to define Positive Energy Districts (PEDs) flexibly in three important contexts: the context of the district's density and local renewable energy supply (RES) potential, the context of a district's location and induced mobility, and the context of the district's future environment and its decarbonized energy demand or supply. It starts by introducing the practical goals of this definition approach: achievable, yet sufficiently ambitious, to be inline with Paris 2050 for most urban and rural Austrian district typologies. It goes on to identify the main design parts of the definition-system boundaries, balancing weights, and balance targets-and argues how they can be linked to the definition goals in detail. In particular, we specify three levels of system boundaries and argue their individual necessity: operation, mobility, and embodied energy and emissions. It argues that all three pillars of PEDs, energy efficiency, onsite renewables, and energy flexibility, can be assessed with the single metric of a primary energy balance when using carefully designed, time-dependent conversion factors. Finally, it is discussed how balance targets can be interpreted as information and requirements from the surrounding energy system, which we identify as a context factor. Three examples of such context factors, each corresponding to the balance target of one of the previously defined system boundaries, operation, mobility, and embodied emissions, are presented: density (as a context for operation), sectoral energy balances and location (as a context for mobility), and an outlook on personal emission budgets (as a context for embodied emissions). Finally, the proposed definition framework is applied to seven distinct district typologies in Austria and discussed in terms of its design goals.

Supervised
thesis

2022

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

Author
José Augusto Sampaio Costa

Institution
UTAD

2022

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

Author
Joana Moura Pereira Duro

Institution
UTAD

2021

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

Author
Carlos José Seabra Costa Oliveira

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

2021

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

Author
Joana Moura Pereira Duro

Institution
UTAD