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Journal Article

Simple tuning rules for feedforward compensators

José Luis Guzmán, Tore Hägglund

Abstract

This paper describes new simple tuning rules for design of feedforward compensators. The problem of
feedforward from load disturbances is analyzed, and it is shown that the feedback controller should
be taken into account in the feedforward design process. Simple rules based on IAE minimization with
restrictions on the process output overshoot and the high-frequency gain of the compensator are then
derived. Several simulations are presented along the paper to show the advantages of the proposed design
rules.

Keywords

Feedforward, Load disturbances, Leadlag filter, PID control, Process control

Links

http://dx.doi.org/10.1016/j.jprocont.2010.10.007


Journal of Process Control, 21:1, pp. 92–102, January 2011.