Unknown Input Based Observer Design for Wind Energy Conversion System with Time-Delay

Van Phong Vu, Wen June Wang, Van Thuyen Ngo, Dinh Nhon Truong, Pei Jun Lee, Ton Duc Do, Van Ngoc Tong

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

Abstract

A new approach to design a nonlinear observer for the Wind Energy Conversion System (WECSs) with the existence of a delay time state variable is proposed in this paper. The WECSs are modeled under a polynomial framework that allows us to apply the powerful methodology of the linear system to synthesize the observer. Unlike the previous paper, the delay time in this paper is arbitrary and unnecessary to satisfy the bound constraints or the time delay must be constant. Additionally, during operating the WECSs, the wind is taken into account the unknown disturbance that affects to the performance of WECSs. In this paper, the unknown input method is employed to design the observer which can eliminate the influences of the delay time parts and disturbance; as well as estimate the unknown states asymptotically. Based on the Lyapunov theory and Sum-Of-Square (SOS) technique, the conditions to synthesize the nonlinear observer are obtained in the main theorems. The simulation results are also provided to show the merit of the proposed method.

Original languageEnglish
Title of host publicationProceedings of 2020 5th International Conference on Green Technology and Sustainable Development, GTSD 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages296-301
Number of pages6
ISBN (Electronic)9781728199825
DOIs
Publication statusPublished - Nov 27 2020
Event5th International Conference on Green Technology and Sustainable Development, GTSD 2020 - Virtual, Ho Chi Minh City, Viet Nam
Duration: Nov 27 2020Nov 28 2020

Publication series

NameProceedings of 2020 5th International Conference on Green Technology and Sustainable Development, GTSD 2020

Conference

Conference5th International Conference on Green Technology and Sustainable Development, GTSD 2020
CountryViet Nam
CityVirtual, Ho Chi Minh City
Period11/27/2011/28/20

Keywords

  • Observer Design
  • Polynomial System
  • SOS
  • Unknown Input Method
  • WECSs

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanics of Materials
  • Waste Management and Disposal
  • Artificial Intelligence
  • Computer Science Applications
  • Renewable Energy, Sustainability and the Environment
  • Civil and Structural Engineering

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