Multivariable Control for a Variable Area Turbine Engine

Abstract

A multivariable control has been formulated for a turbofan nonaugmented engine with variable area turbines operating at sea level static conditions. The nonlinear dynamic model was represented by two fourth-order linear models. An interactive matrix Ricatti optimization program was developed which automatically calculated a feedback gain matrix and displays on-line the transient response of selected key parameters. The multivariable controller implemented on the nonlinear model required modifications to accommodate both large and small transients gains transitioning and control saturation. Transient results from the controller are discussed including the effect of component deterioration, sensor and control positioning errors, and installation factors.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1977
Accession Number
ADA127218

Entities

People

  • David B. Edmunds

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Afterburners
  • Classification
  • Compressor Stators
  • Control Systems
  • Engines
  • Gas Turbines
  • Guide Vanes
  • High Pressure
  • Inlet Guide Vanes
  • Jet Engines
  • Nonlinear Dynamics
  • Sea Level
  • Turbine Components
  • Turbines
  • Turbofan Engines
  • Turbojet Engines
  • Variable Cycle Engines

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Control Systems Engineering.
  • Internal Combustion Engine (ICE) Technology.