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Article Dans Une Revue International Journal of Control Année : 2017

Time-response shaping using Output to Input Saturation Transformation

modelage de la réponse temporelle d'un système en utilisant une transformation de contrainte de sortie en contrainte d'entrée

Résumé

For linear systems, the control law design is often performed so that the resulting closed loop meets specific frequency-domain requirements. However, in many cases, it may be observed that the obtained controller does not enforce time-domain requirements amongst which the objective of keeping a scalar output variable in a given interval. In this article, a transformation is proposed to convert prescribed bounds on an output variable into time-varying saturations on the synthesised linear scalar control law. This transformation uses some well-chosen time-varying coefficients so that the resulting time-varying saturation bounds do not overlap in the presence of disturbances. Using an anti-windup approach, it is obtained that the origin of the resulting closed loop is globally asymptotically stable and that the constrained output variable satisfies the time-domain constraints in the presence of an unknown finite-energy-bounded disturbance. An application to a linear ball and beam model is presented.
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Dates et versions

hal-01633711 , version 1 (15-11-2017)

Identifiants

Citer

E. Chambon, L. Burlion, P. Apkarian. Time-response shaping using Output to Input Saturation Transformation. International Journal of Control, 2017, 90, pp.1 - 32. ⟨10.1080/00207179.2017.1286043⟩. ⟨hal-01633711⟩

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