PERFORMANCE
COMPARISON OF TWO CONTROLLERS ON A NONLINEAR SYSTEM
Kenneth
O.M. Mapoka, Dr Tranos Zuva2, Howard Masebu3 and Keneilwe Zuva4
1Department
of Agricultural Engineering and Land Planning, Botswana College of Agriculture,
Gaborone, Botswana
ABSTRACT
Various systems and instrumentation
use auto-tuning techniques in their operations. For example, audio processors,
designed to control pitch in vocal and instrumental operations. The main aim of
autotuning is to conceal off-key errors and allowing artists to perform
genuinely despite slight deviation off-key. In this paper two, Auto tuning
control strategies are proposed. These are Proportional, Integral and
Derivative (PID) control and Model Predictive Control (MPC). The PID and MPC
controller’s algorithms amalgamate the auto-tuning method. These control
strategies ascertain stability, effective and efficient performance on a
nonlinear system. The paper test and compare the efficacy of each control
strategy. This paper generously provides systematic tuning techniques for the
PID controller than the MPC controller. Therefore, in essence, the PID has to
give effective and efficient performance compared to the MPC. The PID depends
mainly on three terms, the P ( ) gain, I ( ) gain and lastly D ( ) gain for control
each playing unique role while the MPC has more information used to predict and
control a system.
KEYWORDS
Auto Tuning, Nonlinear system, Control law, PID & MPC
More Details: http://airccse.org/journal/ijccms/current2013.html
http://airccse.org/journal/ijccms/papers/2313ijccms02.pdf
http://airccse.org/journal/ijccms/papers/2313ijccms02.pdf
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