Implementation of fixed structure QFT prefilter synthesised using interval constraint satisfaction techniques

Implementation of fixed structure QFT prefilter synthesised using interval constraint satisfaction techniques

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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: ,
Keywords: benchmarking, constraint programming
Abstract:

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.

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