Power-decoupling control for wind energy conversion system based on linear model following control

Jiong Kang Lin, Ka Wai Eric Cheng, Ming Liu, Yong Zhang, Si Zhe Chen, Hong Xia Guo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

A wind energy conversion system (WECS) model is presented, including wind turbine and brushless doubly fed machine working as a generator. The WECS is decoupled into two subsystems by synchronous frame transformation. Furthermore, a double-loop controller is applied to make the system follow the characteristics of the reference model. It's well known that a particular wind speed corresponds to an maximum power output. By considering the complex structure of the BDFM (brushless doubly-fed machine), a disturbance rejection controller (ADRC) is used in the inner loop of the control system in order to achieve power-decoupling control. Besides, linear model following control (LMFC) is used in the outer loop to make the generator effectively track the characteristics of the model. Simulation results indicate that doubleloop controller enables the output power of the system to track the given power and achieves perfect model following, which verifies the validity of the control algorithm.
Original languageEnglish
Pages (from-to)311-315
Number of pages5
JournalKongzhi Lilun Yu Yingyong/Control Theory and Applications
Volume25
Issue number2
Publication statusPublished - 1 Apr 2008

Keywords

  • Auto-disturbance rejection controller
  • Brushless doubly-fed machine
  • Linear model following control
  • Wind energy conversion system

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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