Title :
Properties of zeros of a discrete-time system with fractional order hold
Author :
Ishitobi, Mitsuaki
Author_Institution :
Fac. of Eng., Kumamoto Univ., Japan
Abstract :
This paper is concerned with the properties of zeros of discrete-time systems which are composed of a hold, a continuous-time plant and a sampler in cascade. Here the fractional order hold is applied as the hold. The properties of the zeros are explored in the limiting cases when the sampling period tends to zero or infinity. The stability conditions of the zeros for sufficiently small or large sampling periods are also presented. A simulation example is shown to compare the fractional order hold with the zero-order hold
Keywords :
control system analysis; discrete time systems; poles and zeros; stability criteria; state-space methods; transfer functions; SISO systems; discrete-time system; fractional order hold; sampling period; stability conditions; state space method; transfer function; zero-order hold; Circuits; Equations; H infinity control; Materials science and technology; Mechanical engineering; Mechanical factors; Sampling methods; Stability; State-space methods; Transfer functions;
Conference_Titel :
Decision and Control, 1996., Proceedings of the 35th IEEE Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-3590-2
DOI :
10.1109/CDC.1996.577474
