L1 Adaptive Speed Control of a Small Wind Energy Conversion System for Maximum Power Point Tracking

Haoran Zhao, Qiuwei Wu, Claus Nygaard Rasmussen, Mogens Blanke

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Abstract

This paper presents the design of an L1 adaptive controller for maximum power point tracking (MPPT) of a small variable speed Wind Energy Conversion System (WECS). The proposed controller generates the optimal torque command for the vector controlled generator side converter (GSC) based on the wind speed estimation. The proposed MPPT control algorithm has a generic structure and can be used for different generator types. In order to verify the efficacy of the proposed L1 adaptive controller for the MPPT of the WECS, a full converter wind turbine with a squirrel cage induction generator (SCIG) is used to carry out case studies using Matlab/Simulink. The case study results show that the designed L1 adaptive controller has good tracking performance even with unmodeled dynamics and in the presence of parameter uncertainties and unknown disturbances.
Original languageEnglish
JournalI E E E Transactions on Energy Conversion
Volume29
Issue number3
Pages (from-to)576–584
ISSN0885-8969
DOIs
Publication statusPublished - 2014

Keywords

  • Full-converter wind turbine
  • L1 adaptive control
  • Maximum power point tracking (MPPT),
  • Wind energy conversion

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