A Method for Handling Uncertainty in Evolutionary Optimization with an Application to Feedback Control of Combustion - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Journal Articles IEEE Transactions on Evolutionary Computation Year : 2009

A Method for Handling Uncertainty in Evolutionary Optimization with an Application to Feedback Control of Combustion

Abstract

We present a novel method for handling uncertainty in evolutionary optimization. The method entails quantification and treatment of uncertainty and relies on the rank based selection operator of evolutionary algorithms. The proposed uncertainty handling is implemented in the context of the Covariance Matrix Adaptation Evolution Strategy (CMA-ES) and verified on test functions. The present method is independent of the uncertainty distribution, prevents premature convergence of the evolution strategy and is well suited for online optimization as it requires only a small number of additional function evaluations. The algorithm is applied in an experimental set-up to the online optimization of feedback controllers of thermoacoustic instabilities of gas turbine combustors. In order to mitigate these instabilities, gain-delay or model-based Hinfty controllers sense the pressure and command secondary fuel injectors. The parameters of these controllers are usually specified via a trial and error procedure. We demonstrate that their online optimization with the proposed methodology enhances, in an automated fashion, the online performance of the controllers, even under highly unsteady operating conditions, and it also compensates for uncertainties in the model-building and design process.
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Dates and versions

inria-00276216 , version 1 (21-06-2008)

Identifiers

  • HAL Id : inria-00276216 , version 1

Cite

Nikolaus Hansen, Andre S.P. Niederberger, Lino Guzzella, Petros Koumoutsakos. A Method for Handling Uncertainty in Evolutionary Optimization with an Application to Feedback Control of Combustion. IEEE Transactions on Evolutionary Computation, 2009. ⟨inria-00276216⟩
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