Title :
Stability of zeros of sampled MIMO systems with GSHF
Author :
Shan, Liang ; Mitsuaki, Ishitobi ; Kaiming, Xie
Author_Institution :
Coll. of Autom., Chongqing Univ., Chongqing
Abstract :
It is well-known that unstable zeros limit the achievable control performance and generalized sampled hold function can be used to shift the zeros of sampled-data models for continuous-time systems. This paper analyzes the stability of the limiting zeros of the discrete-time MIMO systems composed of a generalized sample hold function (GSHF), a continuous-time plant with the degrees of infinite elementary divisors being two or three, and a samples in cascade. The conditions that ensure the stability of the limiting zeros of discrete-time systems for sufficiently small sampling periods are derived and proof in detail.
Keywords :
MIMO systems; continuous time systems; poles and zeros; sampled data systems; stability; continuous-time systems; discrete-time system; generalized sample hold function; infinite elementary divisors; limiting zero stability; sampled MIMO systems; sampled-data models; Automatic control; Automation; Educational institutions; MIMO; Neodymium; Sampling methods; Stability analysis; Discrete-time system; Generalized sample hold function; Limiting zeros; MIMO; Stability;
Conference_Titel :
Control Conference, 2008. CCC 2008. 27th Chinese
Conference_Location :
Kunming
Print_ISBN :
978-7-900719-70-6
Electronic_ISBN :
978-7-900719-70-6
DOI :
10.1109/CHICC.2008.4605112
