Title :
Robustness characteristics of fast-sampling digital I controllers for high-performance aircraft with impaired control surfaces
Author_Institution :
Dept. of Aeronaut. & Mech. Eng., Salford Univ., UK
Abstract :
The robustness characteristics of fast-sampling error-actuated digital set-point tracking PI controllers are established in the case of partially irregular linear multivariable plants. It is shown that the plant-parameter variations tolerable by such fast-sampling error-actuated digital controllers can be expressed very simply in terms of the step-response matrices of the nominal and actual plants. These general results are illustrated by examining the robustness characteristics of a fast-sampling error-actuated digital PI controller for the F-16 aircraft in case the flaperon and elevator suffer various losses in effectiveness
Keywords :
aircraft control; control system synthesis; controllers; digital control; linear systems; matrix algebra; multivariable control systems; sampled data systems; step response; two-term control; F-16 aircraft; elevator; error-actuated digital set-point tracking PI controllers; fast-sampling digital I controllers; flaperon; high-performance aircraft; impaired control surfaces; partially irregular linear multivariable plants; robustness characteristics; step-response matrices; Aerospace control; Aircraft; Digital control; Error correction; Integral equations; Pi control; Programmable control; Proportional control; Robust control; Sampling methods;
Conference_Titel :
Aerospace and Electronics Conference, 1991. NAECON 1991., Proceedings of the IEEE 1991 National
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-0085-8
DOI :
10.1109/NAECON.1991.165805
