A DIRECT SYNTHESIS CONTROL STRATEGY FOR SINGLE-INPUT, SINGLE-OUTPUT NONLINEAR SYSTEM

Authors : Ademola Stanford OLUFEMI

Pages : 217-231

Doi:10.36222/ejt.685083

View : 16 | Download : 5

Publication Date : 2020-12-30

Article Type : Research Paper

Abstract :This paper describes the strategy to design and modify a conventional controller by direct synthesis and the internal model control insert ignore into journalissuearticles values(IMC); methods for a single-input, single-output insert ignore into journalissuearticles values(SISO); process system. Both of these methods are the most widely used approaches, both in their simplicity and in their generality. The design of a direct synthesis controller based on a linear inversion of the non-linear process model about a steady-state was first considered. The particular linear design technique adopted resulted in a Proportional – Integral insert ignore into journalissuearticles values(PI); controller whose parameters are easily computed as a function of the parameters of the linear invertible model and the controller tuning parameter. The internal model control insert ignore into journalissuearticles values(IMC); methods were also considered to determine the fault from external disturbance. From this study, it was observed that under certain conditions both direct synthesis and internal model control methods are equal. Their use in the design of analog and digital controllers is presented by the method of the required model.
Keywords : PID, direct synthesis, IMC, required medel, controller design