Combination of Two Nonlinear Techniques Applied to a 3-DOF Helicopter | Zendy

Peyman Ahmadi | Zendy; Mehdi Golestani | Zendy; Saeed Nasrollahi | Zendy; Ahmadreza Vali | Zendy

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Combination of Two Nonlinear Techniques Applied to a 3-DOF Helicopter

Author(s) -

Peyman Ahmadi,

Mehdi Golestani,

Saeed Nasrollahi,

Ahmadreza Vali

Publication year - 2014

Publication title -

isrn aerospace engineering

Language(s) - English

Resource type - Journals

ISSN - 2314-6427

DOI - 10.1155/2014/436072

Subject(s) - control theory (sociology) , sliding mode control , controller (irrigation) , nonlinear system , feedback linearization , convergence (economics) , mode (computer interface) , disturbance (geology) , linearization , robust control , computer science , upper and lower bounds , control (management) , engineering , control engineering , mathematics , artificial intelligence , physics , paleontology , mathematical analysis , quantum mechanics , agronomy , economics , biology , economic growth , operating system

A combination of two nonlinear control techniques, fractional order sliding mode and feedback linearization control methods, is applied to 3-DOF helicopter model. Increasing of the convergence rate is obtained by using proposed controller without increasing control effort. Because the proposed control law is robust against disturbance, so we only use the upper bound information of disturbance and estimation or measurement of the disturbance is not required. The performance of the proposed control scheme is compared with integer order sliding mode controller and results are justified by the simulation.

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