Comparison Study of H-infinity Controller Design Algorithms for Spacecraft Attitude Control

Title & Authors
Comparison Study of H-infinity Controller Design Algorithms for Spacecraft Attitude Control
Rhee, Seung-Wu;

Abstract
There are three kinds of algorithms(2-ARE, mu-synthesis, LMI) for controller design using closed-loop shaping method. This paper provides the summary of background theory of three algorithms and $\small{H_{\infty}}$ controller design results for spacecraft attitude control using the three controller design tools of Matlab$\small{^{TM}}$ Toolbox for comparison. As a result, it reveals that LMI design method is more reliable as well as easier than others for spacecraft attitude control design. Comparison results are as follow: 2-ARE method and LMI method provide almost same results in robust stability, robust performance and control authority level. But 2-ARE method is more sensitive than LMI method with respect to proper design of weighting functions: 2-ARE method is more difficult than LMI method in weighting function design. The design result of mu-synthesis method shows worse performance and requires bigger control authority than others.
Keywords
$\small{H_{\infty}}$ Controller;2-ARE;mu-Synthesis;LMI;Robust Stability;Robust Performance;Spacecraft Attitude Control;
Language
Korean
Cited by
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