THE EFFECTS OF POLYNOMIAL APPROXIMATION IN FEEDFORWARD COMPENSATION OF CONTROL SYSTEMS WITH TIME DELAY.

Abstract

In recent years, a large increase in the number of computer controlled systems and processes has dictated the use of devices with inherently long time delays. The result has been unstable control systems. This thesis develops two methods of feedforward compensation which cope with this problem. The Pade' method of polynomial approximation is used to formulate a number of transfer functions which can be used in the two feedforward compensation schemes. To choose the best transfer function, for a particular problem, a minimum integral square error analysis technique is developed for use in the frequency domain. Computer simulations are used to verify the effectiveness of the two compensation schemes. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1967
Accession Number
AD0826460

Entities

People

  • Richard Wayne Seiler

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Compensation
  • Computer Simulations
  • Computers
  • Control Systems
  • Error Analysis
  • Errors
  • Frequency
  • Frequency Domain
  • Integrals
  • Mathematics
  • Polynomials
  • Simulations
  • Simulators
  • Transfer Functions

Readers

  • Control Systems Engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Systems Analysis and Design