Title :
Optimal low error control of disturbed systems
Author :
Chakraborty, Debraj ; Hammer, Jacob
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Mumbai, India
Abstract :
A linear time invariant system with uncertain initial conditions, perturbed parameters, and active disturbance signals operates in open loop as a result of feedback failure or interruption. The objective is to find an optimal input signal that drives the system for the longest time without exceeding specified error bounds, to allow maximal time for feedback reactivation. It is shown that such a signal exists, and that it can be replaced by a bang-bang signal without significantly affecting performance. The use of bang-bang signals simplifies calculation and implementation.
Keywords :
bang-bang control; feedback; linear systems; open loop systems; optimal control; perturbation techniques; signal processing; uncertain systems; active disturbance signal; bang-bang signal; disturbed system; feedback failure; feedback interruption; feedback reactivation; linear time invariant system; open loop; optimal low error control; perturbed parameter; uncertain initial condition; Biological control systems; Communication system traffic control; Control systems; Degradation; Error correction; Feedback loop; Medical control systems; Time invariant systems; USA Councils; Uncertainty;
Conference_Titel :
Systems, Man and Cybernetics, 2009. SMC 2009. IEEE International Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
978-1-4244-2793-2
Electronic_ISBN :
1062-922X
DOI :
10.1109/ICSMC.2009.5346699
