Production
https://prod.org.br/doi/10.1590/S0103-65132004000200008
Production
Article

Aplicação de um modelo paramétrico multivariado para o controle da temperatura de fornos de túnel

Souza, Adriano Mendonça; Samohyl, Robert Wayne; Malavé, Cesar O.

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Abstract

O principal objetivo desta pesquisa é implementar um ajuste multivariado proporcional, em relação ao último erro, das variáveis que estão fora do alvo desejado. Para a realização do ajuste multivariado proporcional, utilizou-se um forno de túnel para a queima de azulejo. Dessa forma, foi possível analisar todas as etapas do processo produtivo, para efetivar a equação de controle proposta. As etapas seguidas foram: a aplicação da estatística de médias móveis ponderadas exponencialmente, que determinará o comportamento dos distúrbios; os valores futuros das variáveis serão estimados por regressões aparentemente não correlacionadas, pois existe relação entre as variáveis e entre os erros das equações estimadas; e aplicação da equação de controle proposta. Dessa forma, um ajuste de realimentação multivariado pode ser alcançado de modo científico, controlando, assim, a temperatura do forno.

Keywords

Controle de realimentação multivariado, regressões aparentemente não correlacionadas, controle de engenharia do processo

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