Bacelli, Giorgio and Ringwood, John and Gilloteaux, Jean-Christophe
A control system for a self-reacting point
absorber wave energy converter subject to
Proceedings of 18th IFAC World Congress.
The problem of the maximization of the energy produced by a self reacting point
absorber subject to motion restriction is addressed. The main objective is to design a control
system suitable for real-time implementation. The method presented for the solution of the
optimization problem is based on the approximation of the motion of the device and of the
force exerted by the power take off unit by means of a linear combination of basis functions.
The result is that the optimal control problem is reformulated as a non linear program where
the properties of the cost function and of the constraint are affected by the choice of the basis
functions. An example is described where the motion and the force are approximated using
Fourier series; an optimization algorithm for the solution of the non linear program is also
presented. The control system is implemented and simulated using a real sea profile measured
by a waverider buoy.
||Real-time control; Optimal control theory; Controller constraints and structure;
||Faculty of Science and Engineering > Electronic Engineering
Professor John Ringwood
||30 Mar 2012 13:16
|Journal or Publication Title:
||Proceedings of 18th IFAC World Congress
||International Federation of Automatic Control (IFAC)
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