Model Predictive Control of a Wave Energy Converter

Palle Andersen, Tom Søndergård Pedersen, Kirsten Mølgaard Nielsen, Enrique Vidal

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

16 Citations (Scopus)

Abstract

In this paper reactive control and Model Predictive Control (MPC) for a Wave Energy Converter (WEC) are compared. The analysis is based on a WEC from Wave Star A/S designed as a point absorber. The model predictive controller uses wave models based on the dominating sea states combined with a model connecting undisturbed wave sequences to sequences of torque. Losses in the conversion from mechanical to electrical power are taken into account in two ways. Conventional reactive controllers are tuned for each sea state with the assumption that the converter has the same efficiency back and forth. MPC's are designed for each sea state using a model assuming a linear loss torque. The mean power results from two controllers are compared using both loss models.

Simulation results show that MPC can outperform a reactive controller if a good model of the conversion losses is available.
Original languageEnglish
Title of host publicationIEEE Conference on Control Applications (CCA), 2015
PublisherIEEE Press
Publication date21 Sept 2015
Pages1540 - 1545
ISBN (Electronic)978-1-4799-7787-1
DOIs
Publication statusPublished - 21 Sept 2015
Event2015 IEEE Conference on Control Applications (CCA) - Sydney, Australia
Duration: 21 Sept 201523 Sept 2015

Conference

Conference2015 IEEE Conference on Control Applications (CCA)
Country/TerritoryAustralia
CitySydney
Period21/09/201523/09/2015
SeriesIEEE International Conference on Control Applications

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