Error Analysis of Digital Controller Using δ Operators
Abstract：A discrete model described by Δ-transform converges to itscontinuous counterpart as sample time T→0.Introducing Δ-transform as a new digital control method.This paper analyses the floating error of the corresponding δ-operator and designs a poleassignment controller to track ideal output directly in discrete field.The simulation results from a 2-order system show that δ-operator has better performance for round off noise caused by finite word length,higher accuracy and stability than z-operator.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 91-94 )