Control Strategy Development for an Inverter Controlled Wave Energy Plant

R.G. Alcorn, T.D. Finnigan
2004 The Renewable Energies and Power Quality Journal (RE&PQJ)  
This paper will introduce the Energetech wave energy conversion system and describe its main elements of structure, turbine, generator, instrumentation and control systems. The concept of a parabolic wall which focuses the wave energy onto an oscillating water column (OWC) will be shown. The OWC converts the wave motion to pneumatic energy and then to kinetic energy in air flows suitable for mechanical conversion by the Energetech variable pitch turbine. The paper will show the main points of
more » ... e station design which is due to have its first pilot plant commissioned by end 2004, 100km south of Sydney, Australia. The paper will describe the development of a wave to wire simulation used to rapidly test various station configurations and control scenarios. The model described will be shown as the result of several years of rigorous study involving scale systems, tank testing and computational fluid dynamics. Finally, the use of an inverter controlled variable speed drive will be discussed as the means of power take-off for the Energetech turbine. The control strategies developed using this system and their application in wave energy will be presented using the results of the wave to wire simulation.
doi:10.24084/repqj02.213 fatcat:fi3rszshbbc3pajgfewuxcj33a