A comparison of nonlinear control performance assessment techniques for nonlinear processes |
| |
| Authors: | Wei Yu David I. Wilson Brent R. Young |
| |
| Affiliation: | 1. Chemical and Materials Engineering Department, The University of Auckland, Auckland, New Zealand;2. Department of Electrical and Electronic Engineering Department, Auckland University of Technology, Auckland, New Zealand |
| |
| Abstract: | Assessing the quality of industrial control loops is an important auditing task for the control engineer. However, there are complications when considering the ubiquitous nonlinearities present in many industrial control loops. If one simply ignores these nonlinearities, there is the danger of over‐estimating the performance of the control loop in rejecting disturbances and thereby possibly overlooking loops that need attention. To address this problem, several techniques have been recently developed to extend the control performance assessment (CPA) of single input/single output linear systems to nonlinear systems. This article surveys these nonlinear CPA techniques and compares their performances using three case studies. These results can be used to guide control engineers to select the most suitable CPA techniques for their particular applications. © 2012 Canadian Society for Chemical Engineering |
| |
| Keywords: | process control process systems engineering modelling and simulation studies |
|
|
