Control strategies for OWC wave power plants

Author

Amundarain, M. ; Alberdi, M. ; Garrido, A.J. ; Garrido, I.

Author_Institution

Dept. Autom. Control & Syst. Eng., Univ. of the Basque Country, Bilbao, Spain

fYear

2010

fDate

June 30 2010-July 2 2010

Firstpage

4319

Lastpage

4324

Abstract

The present work deals with the improvement of OWC-Wells turbine-generator systems by adequately choosing the applied control scheme. For this purpose, two different control strategies are presented and compared. In the first one, the control system does appropriately adapt the slip of the induction generator according to the pressure drop entry. The second control strategy consists of a traditional control of the OWC air valve. It is demonstrated that the proposed rotational speed control design adequately matches the desired relationship between the slip of the induction generator and the pressure drop input, whilst the valve control using a traditional PID controller successfully governs the flow that modulates the pressure drop across the turbine.

Keywords

asynchronous generators; control system synthesis; power control; renewable energy sources; three-term control; turbogenerators; valves; velocity control; wave power plants; OWC air valve; OWC wave power plant; OWC-Wells turbine generator system; PID controller; control system; induction generator; oscillating water column; pressure drop entry; rotational speed control design; valve control; Automatic control; Energy consumption; Energy conversion; Government; Induction generators; Oceans; Power generation; Renewable energy resources; Systems engineering and theory; Wind turbines;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference (ACC), 2010

Conference_Location

Baltimore, MD

ISSN

0743-1619

Print_ISBN

978-1-4244-7426-4

Type

conf

DOI

10.1109/ACC.2010.5530825

Filename

5530825