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Detalhes

Detalhes

Publicações

2021

A Set of Active Disturbance Rejection Controllers Based on Integrator Plus Dead-Time Models

Autores
Huba, M; Oliveira, PM; Bistak, P; Vrancic, D; Zakova, K;

Publicação
Applied Sciences

Abstract
The paper develops and investigates a novel set of constrained-output robust controllers with selectable response smoothing degree designed for an integrator-plus-dead-time (IPDT) plant model. The input-output response of the IPDT system is internally approximated by several time-delayed, possibly higher-order plant models of increasing complexity. Since they all contain a single integrator, the presented approach can be considered as a generalization of active disturbance rejection control (ADRC). Due to the input/output model used, the controller commissioning can be based on a simplified process modeling, similar to the one proposed by Ziegler and Nichols. This allows it to be compared with several alternative controllers commonly used in practice. Its main advantage is simplicity, since it uses only two identified process parameters, even when dealing with more complex systems with distributed parameters. The proposed set of controllers with increasing complexity includes the stabilizing proportional (P), proportional-derivative (PD), or proportional-derivative-acceleration (PDA) controllers. These controllers can be complemented by extended state observers (ESO) for the reconstruction of all required state variables and non-measurable input disturbances, which also cover imperfections of a simplified plant modeling. A holistic performance evaluation on a laboratory heat transfer plant shows interesting results from the point of view of the optimal least sensitive solution with smooth input and output.

2021

Practical Validation of a Dual Mode Feedforward-Feedback Control Scheme in an Arduino Kit

Autores
de Moura Oliveira, PB; Vrancic, D;

Publicação
Lecture Notes in Electrical Engineering - CONTROLO 2020

Abstract

2021

Your Turn to Learn – Flipped Classroom in Automation Courses

Autores
Soares, F; de Moura Oliveira, PB; Leão, CP;

Publicação
Lecture Notes in Electrical Engineering - CONTROLO 2020

Abstract

2021

Bridging Theory to Practice: Feedforward and Cascade Control with TCLab Arduino Kit

Autores
de Moura Oliveira, PB; Hedengren, JD; Boaventura Cunha, J;

Publicação
Lecture Notes in Electrical Engineering - CONTROLO 2020

Abstract

2021

Students Drop Out Trends: A University Study

Autores
Silva, B; Pires, EJS; Reis, A; de Moura Oliveira, PB; Barroso, J;

Publicação
Communications in Computer and Information Science - Technology and Innovation in Learning, Teaching and Education

Abstract

Teses
supervisionadas

2019

Chat Bot -o diagmóstico de bolso

Autor
Duarte Rui Afonso Gomes Tavares do Amaral

Instituição
UTAD

2018

Diagnóstico Automático no Cancro da Mama

Autor
Vera Susana Ribeiro

Instituição
UTAD

2018

SUCESSO DA GESTÃO DE PROJETOS DE DESENVOLVIMENTO DE SISTEMAS DE INFORMAÇÃO - O CASO DOS PROJETOS EM INSTITUIÇÕES PÚBLICAS

Autor
Antero Manuel de Carvalho Gonçalves

Instituição
UTAD

2018

Simulação de enxames robóticos controlados com meta-heuristicas bio-inspiradas

Autor
Guilhermino de Almeida Magalhães Pereira

Instituição
UTAD

2018

Sistemas Baseados em casos: Aplicação à Saúde

Autor
Stéfanie Maria da Costa Alves

Instituição
UTAD