Title :
Optimal PID controller with finite word length implementation
Author :
Collins, Emmanuel G., Jr. ; Zhao, Yanan
Author_Institution :
Dept. of Mech. Eng., Florida A&M Univ., Tallahassee, FL, USA
Abstract :
This paper develops a design algorithm to obtain an optimal digitally implemented controller and its realization. The Fixed-Point blockset of Matlab is used to simulate effects resulting from the finite precision implementation, while a genetic algorithm is employed to minimize a cost function that is equivalent to an H2 norm if the FWL effects are ignored. The effectiveness of the proposed algorithm is illustrated by two design examples
Keywords :
control system CAD; genetic algorithms; optimal control; three-term control; Matlab; PID controller; finite precision implementation; finite word length; genetic algorithm; optimal controller; Algorithm design and analysis; Control systems; Cost function; Digital control; Error correction; Hardware; Optimal control; Quantization; Roundoff errors; Three-term control;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.946070
