Subscription or Fee Access
Results on Optimal Tuning of Fuzzy Models of Magnetic Levitation Systems
This paper presents some results related to the optimal tuning of fuzzy models of magnetic levitation systems as widely used nonlinear processes. A modeling approach is given. The Takagi-Sugeno fuzzy models of the process (which is first stabilized) are obtained by the modal equivalence principle, where the rule consequents contain the state-space models of the stabilized process linearized at important operating points. The optimization problems are focused on the minimization of objective functions defined as the mean square modeling error (i.e., the difference between the real-world process output and the fuzzy model output). The vector variables of the objective functions consist of a part of the parameters of the input membership functions of the fuzzy models. An operating point selection algorithm is inserted in the initial phase of the modeling approach. Several nature-inspired optimization algorithms are employed to solve the optimization problems that result in optimal fuzzy models, and Particle Swarm Optimization, Simulated Annealing and Gravitational Search Algorithms are exemplified.
fuzzy models, Gravitational Search Algorithms, magnetic levitation systems, objective functions, Particle Swarm Optimization, Simulated Annealing.
Disclaimer/Regarding indexing issue:
We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information.