Low-Order Aerodynamic Models in the Optimization of Multi-Kite Systems

Low-Order Aerodynamic Models in the Optimization of Multi-Kite Systems

Optimal control is one strategy to prepare for the preliminary design of multi-kite airborne wind energy systems (MAWES). However, the solution of an optimal control problem (OCP) can only be as good as the modeled physical constraints. This thesis intends to find a wake induction model that is sufficiently fast to work in interactive numerical optimization, while being sufficiently accurate to give meaningful OCP solutions. Work so far has determined that: a wake model is necessary, that the model should be valid over applicable wind environments, that the model should include unsteady effects. A fast wake model suitable for MAWES (an engineering induction model) has been proposed, and work is ongoing to synthesize a model with a wider region of validity.

Avatar
Rachel Leuthold
PhD Researcher

Interested in optimal control of a centrifugally stiffened rotor in pumping cycle operation.

Publications

(2017). Multiple Wake Discrete Vortex Model for 2D LEI Tube Kite Airfoil. Book of Abstracts of the International Airborne Wind Energy Conference (AWEC 2017).

PDF Project

(2017). Induction in Optimal Control of Multiple-Kite Airborne Wind Energy Systems. Proceedings of the 20th World Congress The International Federation of Automatic Control.

PDF Project

(2015). Multiple-Wake Vortex Lattice Method for Airborne Wind Energy Membrane-Wing Kites. Book of Abstracts of the International Airborne Wind Energy Conference (AWEC 2015).

PDF Project