Title :
On the design of digital repetitive controllers using l2 and H∞ optimal criteria with application to active harmonic noise cancellation in ducts
Author :
Hu, Jwu-Sheng ; Yu, Shiang-Hwua ; Shieh, Cheng-Shiang
Author_Institution :
Dept. of Control Eng., Nat. Chao-Tung Univ., Hsinchu, Taiwan
Abstract :
Two different optimization schemes based on l2 and H ∞ criteria are presented to design discrete-time repetitive controllers. These methods are designed to improve the convergence speed of the close loop system, especially when the plant possesses unstable zeros close to the unit circle. Examples are made to compare these two criteria. An experimental study on active harmonic noise cancellation in ducts is conducted to demonstrate the proposed methods
Keywords :
H∞ optimisation; acoustic noise; active noise control; closed loop systems; discrete time systems; poles and zeros; stability; H∞ optimisation; acoustic noise reduction; active harmonic noise cancellation; close loop system; convergence; digital repetitive controllers; discrete-time systems; l2 optimisation; stability; unstable zeros; Convergence; Design methodology; Design optimization; Digital control; Ducts; Noise cancellation; Optimal control; Poles and zeros; Power harmonic filters; Robust stability;
Conference_Titel :
American Control Conference, Proceedings of the 1995
Print_ISBN :
0-7803-2445-5
DOI :
10.1109/ACC.1995.529402
