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Partially decentralized control for ALSTOM gasifier.

Wen Tan1, Guannan Lou, Luping Liang

  • 1School of Control & Computer Engineering, North China Electric Power University, Zhuxinzhuang, Dewai, Beijing, 102206, China. wtan@ieee.org

ISA Transactions
|March 2, 2011
PubMed
Summary
This summary is machine-generated.

This study introduces a new control method for gasifiers in Integrated Gasification Combined Cycle (IGCC) power plants. The developed controller simplifies complex gasifier operations, ensuring stable plant performance.

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Area of Science:

  • Chemical Engineering
  • Control Systems Engineering

Background:

  • Gasifiers are critical components in Integrated Gasification Combined Cycle (IGCC) power plants.
  • Gasifier control presents challenges due to their nature as complex multivariable systems with stringent operational constraints.

Purpose of the Study:

  • To develop a novel, partially decentralized controller design method for gasifier systems.
  • To address the control difficulties inherent in gasifier operation within IGCC plants.

Main Methods:

  • A partially decentralized controller design approach is presented, utilizing the stabilizer concept.
  • The method involves identifying specific closed-loop transfer functions.
  • An H(∞) optimization problem is solved to derive the controller parameters.

Main Results:

  • Two distinct partially decentralized controllers were successfully designed for the ALSTOM gasifier benchmark.
  • Simulation results demonstrated that both controllers effectively met the predefined design specifications.
  • The designed controllers are practical and straightforward to implement and validate.

Conclusions:

  • The proposed partially decentralized control method offers an effective solution for managing complex gasifier systems.
  • This approach simplifies the control of gasifiers in IGCC power plants, enhancing operational stability and performance.
  • The controller's ease of implementation and validation makes it a valuable tool for practical applications.