Modélisation d'un réacteur biologique à l'aide d'une structure multimodèle. Méthode analytique d'obtention d'un multimodèle

A Novel fuzzy Control Strategy for Maximum Power Point Tracking of Wind Energy Conversion System

“…Thus, the problem of wind turbine control is converted as multiobjective tracking control of a multivariable system, nonlinear and strongly dependent on a stochastic input represented by the wind speed To solve these problems, many strategies have been proposed, among them, we can quote the use of PI controllers with a fixed gains [3], or controllers designed from the fuzzy logic approach [4,5,6]. Other optimal control law has been developed from a linearized model over different operation zone, such as the LQG control [7,8,9] or the robust control which minimizing a H∞ criterion [10,11,12] Currently, TS approach is considered as a very useful tool for modeling non-linear systems, being based on the decomposition of the dynamic behavior of the system into several operating zones, each characterized by a sub-model of reduced complexity [13,14,15,16,17]. In this context, several works have been proposed to solve the problem of maximum power point tracking control applied to the wind turbine system [18,19,20,21,22,23].…”