Nonlinear, optimal control of wind energy conversion systems using differential SDRE

Ahmed Khamis, Hoa M. Nguyen, D. Subbaram Naidu

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

5 Scopus citations


Wind energy has taken an important role in responding to overall energy demand and environmental concers. As the demand of the wind energy increase, investigations focus on maximizing the energy extraction and efficiency mostly through the design of key components such as blades, gearboxes, generators, etc and implementation of advanced control strategies. This paper focuses on new application of nonlinear feedback optimal control strategy to Wind Energy Conversion Systems (WECS) with Permanent Magnet Synchronous Generators (PMSG). In particular, a finite-horizon nonlinear control technique based on State Dependent Riccati Equation (SDRE) for the design of a closed-loop, optimal controller is applied. The idea of the technique is the change of variables that converts the nonlinear differential Riccati equation to a linear Lyapunov differential equation. Simulation results for the PMSG-WECS are given to illustrate the effectiveness of the technique.

Original languageEnglish (US)
Title of host publicationProceedings - 2015 Resilience Week, RSW 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781479985944
StatePublished - Oct 1 2015
EventResilience Week, RSW 2015 - Philadelphia, United States
Duration: Aug 18 2015Aug 20 2015

Publication series

NameProceedings - 2015 Resilience Week, RSW 2015


OtherResilience Week, RSW 2015
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2015 IEEE.


  • Aerodynamics
  • Generators
  • Mathematical model
  • Optimal control
  • Riccati equations
  • Rotors
  • Wind speed


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