2005
DOI: 10.3182/20050703-6-cz-1902.01617
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Control for Recycle Systems Based on a Discrete Time Model Approximation

Abstract: Exponential polynomials arising in transfer functions of chemical processes with recycle and time-delay preclude the use of standar control technics designed for free-delay systems. In this work a simple and effective methodology to derive an approximate discrete-time model free of delay of a continuous timedelayed systems describing recycle and dead-time processes is proposed. The method is based on the discretization of a sampled version of the time-delay term in the original continuous model. Copyright c°20… Show more

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Cited by 1 publication
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“…Na equação (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14), l = int(ω out /ω in )+1, sendo int(σ) o menor inteiro maior que σ. O caso em que ω out > ω in pode ser obtido de modo similar.…”
Section: Flip-flop Jkunclassified
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“…Na equação (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14), l = int(ω out /ω in )+1, sendo int(σ) o menor inteiro maior que σ. O caso em que ω out > ω in pode ser obtido de modo similar.…”
Section: Flip-flop Jkunclassified
“…Observando a equação (3)(4)(5)(6)(7)(8)(9)(10)(11)(12), nota-se que as fases dos demais nós da rede fazem parte da representação no espaço de estados, o que era esperado, já que cada dispositivo está interligado com os demais. Devido ao atraso entre os nós, essas fases atrasadas excitam o sistema como novas entradas.…”
Section: Representação No Espaço De Estadosunclassified
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