L’identification bayesienne en vue de la retouche de correcteur

In this paper, a new controller adjustment procedure is proposed in order to ensure a better control of closed loop characteristics when the controller order is lower than the plant order. The basic idea is the close relation between identification quality and command insensitivity. The advantage of this method is that the full order model of the system is directly considered in association with its reduced controller. In this way, it is useless to compute a reduced model before adjustment : the result of the adjustment can be immediatly applied to the system. The method consists in defining closed loop noises in order to identify fictitiously modal characteristics of the controlled plant via a bayesian identification algorithm.