Airborne Wind Energy Conference 2017 Book of Abstracts

Modeling and Control of Magnus Effect-Based AWE Systems
Yashank Gupta 1 , Jonathan Dumon 1 , Ahmad Hably 1,2
1 GIPSA-Lab
2 Grenoble INP
At GIPSA-lab, EOFLY is a multi-disciplinary research group
working on the development of airborne wind energy
systems, drones, and conventional wind turbines [1].
Our current research work is focused on the modeling
and control of Magnus effect-based AWE systems. In our
approach, a rotating cylinder designed as an aerostat is
used to drive a ground-based generator. Our choice of
Magnus based aerostat stems from various factors such
as high lift coefficient, naturally robust and stable design,
and lighter than air capabilities. A study about experimental
data available on Magnus cylinders has been
done in order validate the aerodynamic model [2].
160
140
120
100
80
60
40
Z (m)
20
X (m)
0
0 50 100 150 200 250 300
Y (m)
-200
Trajectory and swept area of Magnus based AWE system in xz plane
(left) and yz plane (right) with crosswind manoeuvre in comparison
to a 1.5MW conventional wind turbine.
100
50
0
-50
-100
-150
MW for a wind speed of 10 m/s. In other terms, the prodction
is 3 kW/m 2 . Finally, a simplified model of the whole
cycle is proposed and validated with dynamic simulations.
This model is then used to generate a power curve,
compared to that of a conventional wind turbine.
Power [W]
4
x10 6 P g production
P g recovery
P prod static
3
P rec static
2
1
0
-1
-2
260 280 300 320 340 360 380 400 420 440 460
time [s]
Simulated output power during production and recovery phases
with a comparison with a simplified model (P static ).
Yashank Gupta
PhD Researcher
Grenoble INP
GIPSA-lab, Control System Department
Domaine Universitaire
11 rue des Mathématiques BP 46
38402 Saint-Martin d’Hères
France
yashank.gupta@gipsa-lab.fr
www.gipsa-lab.fr
Then, a point-mass dynamic model of the Magnus based
AWE system is developed and validated in a simulation
environment.
A bang-bang control strategy is applied to control the trajectory
of an airborne module that performs crosswind
maneuvers. Simulation results show that a 500 m 2 Magnus
based AWE produces a net output power around 1.5
34
References:
[1] http://www.gipsa-lab.fr/projet/EOFLY/
[2] Y. Gupta, J. Dumon, and A. Hably, "Modeling and control of
a Magnus effect-based airborne wind energy system in crosswind
maneuvers", IFAC world congress, Toulouse, France, 2017.
https://hal.archives-ouvertes.fr/hal-01514058/
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