TY - JOUR
T1 - Double-command feedforward-feedback control of a nonlinear plant
AU - Mohammadzaheri, Morteza
AU - Chen, Lei
PY - 2010
Y1 - 2010
N2 - A design approach is proposed for feedforward-feedback control systems. The basis of the proposed approach is a steady state control law which maintains the desired control output of the system and is employed as the feedforward controller. With this feedforward controller, for a wide class of systems, the stability of the control system is proved if the feedback controller is a gain with an arbitrarily high value; that is, the only limit for the feedback (transient) control command is the actuator's practical limit. Moreover, in continuous domain, there will be no overshoot. In this article, the proposed method has been applied to a catalytic stirred tank reactor (CSTR) to control the output concentration through adjusting the flow of two valves simultaneously and resulted in an excellent control response.
AB - A design approach is proposed for feedforward-feedback control systems. The basis of the proposed approach is a steady state control law which maintains the desired control output of the system and is employed as the feedforward controller. With this feedforward controller, for a wide class of systems, the stability of the control system is proved if the feedback controller is a gain with an arbitrarily high value; that is, the only limit for the feedback (transient) control command is the actuator's practical limit. Moreover, in continuous domain, there will be no overshoot. In this article, the proposed method has been applied to a catalytic stirred tank reactor (CSTR) to control the output concentration through adjusting the flow of two valves simultaneously and resulted in an excellent control response.
KW - CSTR
KW - Control Equilibrium Point
KW - Feedforward
KW - Lyapunov
KW - Process Control
UR - http://www.scopus.com/inward/record.url?scp=77958016858&partnerID=8YFLogxK
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U2 - 10.1007/s11814-010-0258-8
DO - 10.1007/s11814-010-0258-8
M3 - Article
AN - SCOPUS:77958016858
SN - 0256-1115
VL - 27
SP - 1372
EP - 1376
JO - Korean Journal of Chemical Engineering
JF - Korean Journal of Chemical Engineering
IS - 5
ER -