Title :
Fixed zeros of decentralized control systems
Author :
Unyelioglu, Konur A. ; Ozguner, Umit ; Ozguler, A. Bulent
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
1/1/2000 12:00:00 AM
Abstract :
Considers the notion of decentralized fixed zeros for linear, time-invariant, finite-dimensional systems. For an N-channel plant that is free of unstable decentralized fixed modes, an unstable decentralized fixed zero of channel i (1⩽i⩽N) is defined as an element of the closed right half-plane, which remains as a blocking zero of that channel under the application of every set of N-1 controllers around the other channels, which make the resulting single-channel system stabilizable and detectable. The paper gives a complete characterization of unstable decentralized fixed zeros in terms of system-invariant zeros
Keywords :
decentralised control; linear systems; multidimensional systems; poles and zeros; stability; blocking zero; closed right half-plane; decentralized control systems; fixed zeros; linear time-invariant finite-dimensional systems; single-channel system; system-invariant zeros; Automatic control; Control systems; Differential equations; Distributed control; Feedback; Linear systems; Nonlinear control systems; Robotics and automation; Stability; Time varying systems;
Journal_Title :
Automatic Control, IEEE Transactions on
