A Method for Designing Modi¯ed PID Controllers for Time-delay Plants and Their Application
| Paper File | Download Paper File | | Appear In | ECTI Transaction EEC (ECTI Transaction EEC) | | Publication Date | 01/02/2008 - 28/02/2008 | | Volume | 6 | | Pages | 53 - 63 | | No | 1 | | Author 1 | Kou Yamada | | Author 2 | Takaaki Hagiwara | | Author 3 | Yosuke Shimizu |
Abstract
In this paper, we examine a method for design-
ing modi¯ed proportional-integral-derivative (PID)
controllers for use in stable and/or minimum-phase
time-delay plants. The PID controller structure is
the one used most widely in industrial applications.
Recently, the parameterization of all stabilizing PID
controllers has been considered. However, no method
which guarantees the stability of a PID control sys-
tem for any stable and/or minimum-phase time-delay
plants, and in which the admissible sets of P-, I- and
D-parameters are independent from each other, has
been published. In this paper, we propose a method
for designing modi¯ed PID controllers such that the
modi¯ed PID controller makes the feedback control
system for any stable and/or minimum-phase time-
delay plant stable and the admissible sets of P-, I-
and D-parameters are independent from each other.
Numerical examples and application in a heat °ow
experiment are shown to illustrate the e®ectiveness
of the proposed method. |
