Title page for ETD etd-02022010-020046


Type of Document Master's Thesis
Author Feltner, D. James
URN etd-02022010-020046
Title An investigation into the stability of redundant controller voting schemes
Degree Master of Science
Department Electrical Engineering
Advisory Committee
Advisor Name Title
Grigsby, L. L. Committee Chair
Nunnally, Charles E. Committee Member
VanLandingham, Hugh F. Committee Member
Keywords
  • Electric controllers
Date of Defense 1990-05-05
Availability restricted
Abstract

Redundant controllers are being designed to provide improved system reliability to meet the needs of various applications. In some implementations of these systems unacceptable system transients have occured when a single-controller failure occurs. The problem has been treated using case-by-case correction which is not sufficiently general in application to meet the needs of systems which may be user-programmed. Redundant control systems generalized as ideal and nonideal using two specific voting schemes are examined to gain insight into theoretical characterization of their performance under single-point failure modes and the limitations of applicability for the characterizations. State-model computer simulation is used to demonstrate the characterizations. A suggested direction for a general solution to the problem based on the chatacterizations is described.

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