A new modified Smith predictor: the concept, design and tuning

Magnitude Optimum Techniques for PID Controllers

“…The MOMI and DRMO methods are not limited to just PID controller structures or stable (self-regulatory) processes. The reader can find more information about different controller structures and types of processes in Vrančić (2008), Vrančić & Huba (2011), Vrečko et al, (2001, Vrančić et al, (2001b) and in the references therein. The drawback of the MO method (and therefore the MOMI method and, to an extent, the DRMO method) is that stability is not guaranteed if the controller is of a lower-order than the process.…”

“…They can also be applied to integrating processes (Vrančić, 2008) and to unstable processes (Vrančić & Huba, 2011). The methods can also be applied to different controller structures, such as Smith predictors (Vrečko et al, 2001) and multivariable controllers (Vrančić et al, 2001b). However, due to the limited space and scope of this book, they will not be considered further.…”

Remark on the Application of Smith Predictor in Thickness Control System of the Rolling Mill

“…Aiming at this problem, at present, many scholars at home and abroad has researched Smith predictive control system from two aspects of theory and structure and put forward many kinds of improvement scheme [3].…”

New modified smith predictor designs

“…The "double controller structure" (Tian and Gao, 1998a, 1998b, 1999a feeds back the load controller signal before the disturbance input signal. Using this structure, Vrecko et al (2001) add an extra network including a tuneable delay τ x . By adding an extra network to the modified Smith predictor structure of Astrom et al (1994), the "flexible Smith predictor" structure (Vrancic et al, 1998) is obtained.…”