Resumen de Algebraic identification of a stable first‐order plus time delay model from step response

Kaouther Ibn Taarit, Mekki Ksouri

• Purpose – A fast identification algorithm for a linear monotonic process from a step response is proposed in this paper, from which the parameters of a first‐order plus dead‐time model can be obtained directly.

  Design/methodology/approach – The study is based on a non‐asymptotic distributional estimation technique initiated without delay in the framework of systems. Such a technique leads to simple realization schemes, involving integrators, multipliers and piecewise polynomial or exponential time functions and shows a possible link between simultaneous identification and generalized eigenvalue problems. Thus, it allows for a real‐time implementation.

  Findings – The effectiveness of the identification method has been demonstrated through a number of simulation examples and a real‐time test.

  Originality/value – This paper presents a novel method to simultaneous delay and parameters identification of a stable first‐order plus time delay model from step response that can model a widespread class of systems.