نتایج جستجو برای: fractional order optimal control

تعداد نتایج: 2443254  

Journal: :journal of computational applied mechanics 0
masoud goharimanesh department of mechanical engineering, ferdowsi university of mashhad ali lashkaripour department of life science engineering, university of tehran ali abouei mehrizi department of life science engineering, university of tehran

this paper proposes an optimized control policy over type one diabetes. type one diabetes is taken into consideration as a nonlinear model (augmented minimal model), which is implemented in matlab-simulink. this model is developed in consideration of the patient's conditions. there are some uncertainties in the regarded model due to factors such as blood glucose concentration, daily meals ...

2012
H. Azizi G. B. Loghmani A. Dehghan Nezhad

In this paper, boundary value problems of fractional order are converted into an optimal control problems. Then an approximate solution is constructed from translations and dilations of a B-spline function such that the exact boundary conditions are satisfied. The fractional differential operators are taken in the Riemann-Liouville and Caputo sense. Several example are given and the optimal err...

Journal: :International Journal of Power Electronics and Drive Systems (IJPEDS) 2019

2016
Amit S. Chopade Swapnil W. Khubalkar A. S. Junghare Shantanu Das Antonio Visioli Anjali S. Junghare

The aim of this paper is to employ fractional order proportional integral derivative (FO-PID) controller and integer order PID controller to control the position of the levitated object in a magnetic levitation system (MLS), which is inherently nonlinear and unstable system. The proposal is to deploy discrete optimal pole-zero approximation method for realization of digital fractional order con...

2008
Delfim F. M. Torres

Using the recent formulation of Noether’s theorem for the problems of the calculus of variations with fractional derivatives, the Lagrange multiplier technique, and the fractional Euler-Lagrange equations, we prove a Noetherlike theorem to the more general context of the fractional optimal control. As a corollary, it follows that in the fractional case the autonomous Hamiltonian does not define...

Journal: :Applied Mathematics and Computer Science 2007
Abdelbaki Djouambi Abdelfatah Charef Alina Voda

This paper provides an optimal approximation of the fundamental linear fractional order transfer function using a distribution of the relaxation time function. Simple methods, useful in systems and control theories, which can be used to approximate the irrational transfer function of a class of fractional systems for a given frequency band by a rational function are presented. The optimal param...

Journal: :Appl. Math. Lett. 2013
Ricardo Almeida

We consider infinite horizon fractional variational problems, where the fractional derivative is defined in the sense of Caputo. Necessary optimality conditions for higher-order variational problems and optimal control problems are obtained. Transversality conditions are obtained in the case state functions are free at the initial time.

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