Article ID: | iaor201113573 |
Volume: | 6 |
Issue: | 123 |
Start Page Number: | 255 |
End Page Number: | 281 |
Publication Date: | Dec 2012 |
Journal: | International Journal of Reliability and Safety |
Authors: | Nataraj P S V, Deshpande M M |
Keywords: | benchmarking, constraint programming |
Prefilter synthesis is one of the important design steps of Horowitz's Quantitative Feedback Theory (QFT) to robust feedback system synthesis. The prefilter is designed to achieve tracking specifications. A new, computationally efficient approach for automation of the prefilter design step is proposed. In the proposed approach, the prefilter design problem is posed as an Interval Constraint Satisfaction Problem (ICSP) and solved using established Interval Constraint Satisfaction Techniques (ICST). To validate the above design approach we apply the method to a benchmark problem as well as laboratory set‐up of industrial plant emulator and obtain simple, low‐order QFT prefilters.