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In this paper, a nonlinear flatness and sliding mode controllers of a Fuel Cell and Supercapacitor (FC/SCs) DC-link voltage are proposed and validated by the simulation results. The nonlinear flatness strategy provides a simple way to achieve a linearizing feedback control law, which allows giving an exponential tracking of the desired energy references of FC and SCs. The ideas behind the proposed...
This paper presents a two-loops structured control system design for quadrotor's position/attitude trajectory tracking. The aim of the outer loop is to provide the roll/pitch tilting commands to the inner loop, which in turns generates the quadrotor's tilting angles required to control the horizontal CG position. To fulfill that purpose, the outer loop utilizes Generalized Dynamic Inversion of a prescribed...
The paper presents a novel analysis of a nonminimum supersonic vehicle dynamics. First, a mapping of operating points of a hypothetical short-range tactical missile (SRTM) system is obtained using zero dynamics concept for nonlinear systems within flight envelop and under flight constraints. Then the characteristics of nonminimum phase, model topologies, and poles mappings are derived via linearization...
The presence of nonlinearity in the dynamics of a suspension system equipped with a hydraulic actuator and faced with road perturbations makes its control difficult. To provide an effective control action, a robust observer based output feedback control is proposed. For the estimation of the states in the presence of nonlinearities and perturbations a High Gain Observer is first designed. Employing...
A remotely operated vehicle stabilizing problem, known as ROV-Observer for sub-sea historical sites observation, is addressed in this paper. To success this task, a first part of our study consists to reduce the complexity of the total dynamic model, hence, a rigorous formulation for the control objectives. A constant surge velocity as part of the equilibrium is considered, and around this vector...
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