Investigation of inverse simulation for design of feedforward controllers

Linghai Lu, D. J. Murray-Smith and E. W. McGookin

Mathematical and Computer Modelling of Dynamical Systems, 2007, vol. 13, issue 5, 437-454

Abstract: This paper describes the use of inverse simulation to develop feedforward controllers for model-based output-tracking control system structures, thus avoiding the more complicated techniques of model inversion. Similarities and shortcomings of the inverse simulation and model inversion approaches are explored. It is found that, with suitable values of discretized time interval, the method based on inverse simulation may be preferable for minimum-phase systems. Depending upon zero redistribution within the process of inverse simulation, non-minimum-phase problems for linear systems can also be handled. The conclusions are demonstrated using a non-linear HS125 aircraft model, a linearised Lynx helicopter model and a container ship model for ship steering control and roll stabilization.

Date: 2007
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DOI: 10.1080/13873950701344023

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