Abstract This paper describes a model preditictive control scheme for the horizontal flight guidance of an unmanned powered paraglider (PPG). These aircraft are characterized by their comparatively high wind-to-airspeed ratio and slow, nonlinear flight dynamics. The proposed control scheme consists of two cascaded loops: The inner loop is the heading controller, which is implemented using conventional feedback control; the outer loop controls the horizontal flight path and is implemented using a model predictive controller. Due to the high wind-to-airspeed ratio, wind needs to be taken into account during prediction. To this end, we adopt a simple and robust wind estimation, based only on inertial velocities and heading information. To solve the computationally demanding nonlinear, constrained optimization problem we use a domain-specific heuristic enabling the implementation on a microcontroller. The control scheme is validated using simulations and flight tests, demonstrating good, reproducible flight path following capabilities.
Nonlinear Model Predictive Flight Path Control for an Unmanned Powered Paraglider
2017-12-15
19 pages
Article/Chapter (Book)
Electronic Resource
English
Linear Dynamics and PID Flight Control of a Powered Paraglider
British Library Conference Proceedings | 2009
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