Akademik Veri Yönetim Sistemi
The 19th IFAC World Congress, Cape-Town, Güney Afrika, 24 - 29 Ağustos 2014, ss.3122-3127
Guaranteed
dominant pole placement problem has already been considered in the literature (Journal
of Process Control 19(2009):349–352). For
the systems that are higher-order or have dead-time, pole placement procedure with
PID controllers via modified Nyquist plot and root-locus has been proposed. Based
on this idea, the dominant pole placement problem with discrete-PID controllers
in z-domain is studied since it is important to take advantage of discrete-time
domain representation during the pole placement procedure for time-delay
systems. It is shown that modified Nyquist plot method is still valid in
discrete-time domain and it is possible to find relevant discrete-PID
controller parameters. Controller zeros are also considered in the study, since
in the closed-loop controller zeros can disrupt the dominance. Success of the
method demonstrated on example transfer functions.