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Publications

2024

A Novel Three-Phase Multiobjective Unified Power Quality Conditioner

Authors
Monteiro, V; Moreira, C; Lopes, JAP; Antunes, CH; Osório, GJ; Cataláo, JPS; Afonso, JL;

Publication
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS

Abstract
The decarbonization of the economy and the increasing integration of renewable energy sources into the generation mix are bringing new challenges, requiring novel technological solutions in the topic of smart grids, which include smart transformers and energy storage systems. Additionally, power quality is a vital concern for the future smart grids; therefore, the continuous development of power electronics solutions to overcome power quality problems is of the utmost importance. In this context, this article proposes a novel three-phase multiobjective unified power quality conditioner (MO-UPQC), considering interfaces for solar PV panels and for energy storage in batteries. The MO-UPQC is capable of compensating power quality problems in the voltages (at the load side) and in the currents (at the power grid side), while it enables injecting power into the grid (from the PV panels or batteries) or charging the batteries (from the PV panels or from the grid). Experimental results were obtained with a three-phase four-wire laboratory prototype, demonstrating the feasibility and the large range of applications of the proposed MO-UPQC.

2024

Design and Development of an Omnidirectional Mecanum Platform for the RobotAtFactory 4.0 Competition

Authors
Braun, J; Baidi, K; Bonzatto, L; Berger, G; Pinto, M; Kalbermatter, RB; Klein, L; Grilo, V; Pereira, AI; Costa, P; Lima, J;

Publication
SYNERGETIC COOPERATION BETWEEN ROBOTS AND HUMANS, VOL 1, CLAWAR 2023

Abstract
Robotics competitions are highly strategic tools to engage and motivate students, cultivating their curiosity and enthusiasm for technology and robotics. These competitions encompass various disciplines, such as programming, electronics, control systems, and prototyping, often beginning with developing a mobile platform. This paper focuses on designing and implementing an omnidirectional mecanum platform, encompassing aspects of mechatronics, mechanics, electronics, kinematics models, and control. Additionally, a simulation model is introduced and compared with the physical robot, providing a means to validate the proposed platform.

2024

Best practices for business process automation description - a case study

Authors
Silvares, C; Sao Mamede, H; Costa, J;

Publication
ENTERPRISE INFORMATION SYSTEMS

Abstract
Organizations in competitive, regulated environments must enhance business processes for efficiency, quality, and compliance while minimizing risks and costs. Process automation solutions play a vital role in achieving these goals, though the variety of tool descriptions creates challenges for compatibility and interoperability. This hinders innovation and competitiveness. The adoption of standard specifications or widely accepted best practices for automation descriptions offers a solution. This research aims to identify a set of best practices to guide process-oriented organizations in evaluating their current automation practices, ensuring alignment and fostering improvements in business process automation.

2024

Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications

Authors
Vasconcelos, V; Domingues, I; Paredes, S;

Publication
Lecture Notes in Computer Science

Abstract

2024

Aequitas Flow: Streamlining Fair ML Experimentation

Authors
Jesus, SM; Saleiro, P; Silva, IOe; Jorge, BM; Ribeiro, RP; Gama, J; Bizarro, P; Ghani, R;

Publication
CoRR

Abstract

2024

On-demand 5G Private Networks using a Mobile Cell

Authors
Coelho, A; Ruela, J; Queirós, G; Trancoso, R; Correia, PF; Ribeiro, F; Fontes, H; Campos, R; Ricardo, M;

Publication
CoRR

Abstract

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