Extended kalman filter based incident wave estimation in point absorber

Jaeseung Kim, Jin Bae Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a new method of estimating incident wave state. This method measures output currents from point absorber type wave energy converter and estimates state of the incident wave such as wave amplitude and wave period. The wave period and height are significant information to maximize the output power or the energy conversion efficiency. However, additional sensors are deployed to measure those information and it always involves cost and maintanance issues. This can be estimated using extended Kalman filter (EKF) by measuring generator output currents in α - β domain which does not require any other equipments. The simplified dynamic equation including the point absorber floater and linear generator inside the floater are derived since the Jacobian matrix of the system is required to perform the EKF algorithm. Finally a numerical example is provided to shoe the effectiveness of the proposed estimator.

Original languageEnglish
Title of host publicationProceedings of the SICE Annual Conference
PublisherSociety of Instrument and Control Engineers (SICE)
Pages1354-1359
Number of pages6
ISBN (Electronic)9784907764463
DOIs
Publication statusPublished - 2014 Oct 23
Event2014 53rd Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2014 - Sapporo, Japan
Duration: 2014 Sep 92014 Sep 12

Publication series

NameProceedings of the SICE Annual Conference

Other

Other2014 53rd Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2014
CountryJapan
CitySapporo
Period14/9/914/9/12

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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  • Cite this

    Kim, J., & Park, J. B. (2014). Extended kalman filter based incident wave estimation in point absorber. In Proceedings of the SICE Annual Conference (pp. 1354-1359). [6935268] (Proceedings of the SICE Annual Conference). Society of Instrument and Control Engineers (SICE). https://doi.org/10.1109/SICE.2014.6935268