Observer-based sampled-data control of unstable process with time delay
作者:
ANNRAOIM. DE PAOR,
RUTHP. K. EGAN,
期刊:
International Journal of Control
(Taylor Available online 1990)
卷期:
Volume 51,
issue 2
页码: 341-352
ISSN:0020-7179
年代: 1990
DOI:10.1080/00207179008934069
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A sampled-data control scheme is developed for an unstable time-delayed process, in order to circumvent the limitation on stabilizability (de Paor 1985, de Paor and O'Malley 1989, de Paor and Egan 1989) imposed by the parameter ϵ = λL, where λ > 0 is the unstable pole location in thes-domain andLis process latency. A Luen-berger observer is used for initial assignment of eigenvalues, with disturbance-rejecting PI or PID control then added. The adverse effect of ϵ on disturbance rejection is highlighted. This parameter is seen as a genuine index of difficulty in control, whichever approach is adopted. The effect of derivative action on stability is considered via root locus; no compelling case for its incorporation is established.
点击下载:
PDF (302KB)
返 回