Linear Parameter Varying Control for Actuator Failure

Abstract

A robust linear parameter varying (LPV) control synthesis is carried out for an HiMAT vehicle subject to loss of control effectiveness. The scheduling parameter is selected to be a function of the estimates of the control effectiveness factors. The estimates are provided on-line by a two-stage Kalman estimator. The inherent conservatism of the LPV design is reducing through the use of a scaling factor on the uncertainty block that represents the estimation errors of the effectiveness factors. Simulations of the controlled system with the on-line estimator show that a superior fault-tolerance can be achieved.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2002
Accession Number
ADA408270

Entities

People

  • Christine Belcastro
  • Jong-yeob Shin
  • N. E. Wu

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Actuators
  • Algorithms
  • Classification
  • Closed Loop Systems
  • Conservatism
  • Control Systems
  • Databases
  • Engineering
  • Estimators
  • Fault Tolerance
  • New York
  • Scheduling (Production)
  • Simulations
  • Space Sciences
  • Turbofan Engines
  • Uncertainty
  • Weighting Functions

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Robotics and Automation.