USING EXTREMUM SEEKING CONTROL TO IMPROVE THE POWER CAPTURE OF MIDSIZE HYDROSTATIC WIND TURBINES

Daniel Escobar-Naranjo, Biswaranjan Mohanty, Kim A. Stelson

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

4 Scopus citations

Abstract

Adaptive control strategies are commonly used for systems that change over time, such as wind turbines. Extremum Seeking Control (ESC) is a model-free real-time adaptive control strategy commonly used in conventional gearbox wind turbines for Maximum Power Point Tracking (MPPT). ESC optimizes the rotor power by constantly tuning the torque control gain (k) when operating below rated power. The same concept can be applied for hydrostatic wind turbines. This paper studies the use of ESC for a 60-kW hydrostatic wind turbine. First, a systematic approach to establish the ideal ESC is shown. Second, a comparison of the power capture performance of ESC versus the conventional torque control law (the kw2law) is shown. The simulations include a timesharing power capture coefficient (Cp) to clearly show the advantages of using ESC. Studies under steady and realistic wind conditions show the main advantages of using ESC for a hydrostatic wind turbine.

Original languageEnglish (US)
Title of host publicationProceedings of ASME/BATH 2021 Symposium on Fluid Power and Motion Control, FPMC 2021
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791885239
DOIs
StatePublished - 2021
EventASME/BATH 2021 Symposium on Fluid Power and Motion Control, FPMC 2021 - Virtual, Online
Duration: Oct 19 2021Oct 21 2021

Publication series

NameProceedings of ASME/BATH 2021 Symposium on Fluid Power and Motion Control, FPMC 2021

Conference

ConferenceASME/BATH 2021 Symposium on Fluid Power and Motion Control, FPMC 2021
CityVirtual, Online
Period10/19/2110/21/21

Bibliographical note

Funding Information:
This work is supported by the Efficient Fluid Power (CCEFP).

Funding Information:
This work is supported by the Center for Compact and Efficient Fluid Power (CCEFP).

Publisher Copyright:
Copyright © 2021 by ASME.All right reserved.

Keywords

  • Extremum Seeking Control
  • Hydrostatic Transmission
  • Midsize Wind Turbines
  • Power Capture Coefficient

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