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DISCO - 2013

Section: New Results

Optimal weight tuning in Hinfinity loop-shaping with PSO considering time constraints

Participants : Guillaume Sandou [correspondent] , Gilles Duc [Supélec, E3S] , Philippe Feyel [Sagem] .

Hinfinity loop-shaping controllers have proven their efficiency to solve problems based on complex industrial specifications. However, the tuning of the weighting filters is a time consuming task. This work deals with the use of metaheuristics optimization for this weighting filter tuning. Whereas this topic has already been investigated in lot of works, all of them assume a particular pole/zero/damping/pulse expression for the searched transfer function. But choosing the best weight structure is not trivial and may lead to suboptimal solutions for the design process. That is why, we propose to enhance the weight selection problem by relaxing the structure constraints of transfer functions. The developed methodology is tested, using a real industrial example and leads to satisfactory results.