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Experimental evaluation of HJB optimal controllers for the attitude dynamics of a multirotor aerial vehicle
Igor Afonso Acampora Prado1, Mateus de Freitas Virgílio Pereira1, Davi Ferreira de Castro1
1Instituto Tecnologico de Aeronautica, Praça Marechal Eduardo Gomes, 50, Vila das Acácias, 12228-900, São José dos Campos, São Paulo, Brazil.
Abstract:
The present paper is concerned with the design and experimental evaluation of optimal control laws for the nonlinear attitude dynamics of a multirotor aerial vehicle. Three design methods based on Hamilton-Jacobi-Bellman equation are taken into account. The first one is a linear control with guarantee of stability for nonlinear systems. The second and third are a nonlinear suboptimal control techniques. These techniques are based on an optimal control design approach that takes into account the nonlinearities present in the vehicle dynamics. The stability Proof of the closed-loop system is presented. The performance of the control system designed is evaluated via simulations and also via an experimental scheme using the Quanser 3-DOF Hover. The experiments show the effectiveness of the linear control method over the nonlinear strategy.
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