Title :
Gain margins of model reference adaptive control systems
Author :
Sang, Qian ; Tao, Gang
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Virginia, Charlottesville, VA
Abstract :
This paper studies the gain margins of model reference adaptive control (MRAC)systems: the range of a control gain in a designed adaptive control system, which is sufficient for closed-loop signal boundedness and asymptotic tracking. Analytical results are obtained for four MRAC schemes: direct and indirect, continuous-time and discrete-time, applied to single-input single-output LTI systems. Simulation results are presented to illustrate some of the results.
Keywords :
closed loop systems; continuous time systems; discrete time systems; model reference adaptive control systems; asymptotic tracking; closed-loop signal boundedness; continuous-time MRAC scheme; discrete-time MRAC scheme; gain margins; model reference adaptive control systems; single-input single-output LTI systems; Adaptive control; Control systems; Design automation; Frequency; Intelligent control; Programmable control; Signal design; Stability analysis; Sufficient conditions; System performance; Gain margin; high frequency gain; model reference adaptive control;
Conference_Titel :
Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-2113-8
Electronic_ISBN :
978-1-4244-2114-5
DOI :
10.1109/WCICA.2008.4593393
