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Grant support

This work was supported in part by the grant PID2021-124908NB-I00 founded by MCIN/AEI/10.13039/501100011033/ and by ''ERDF A way of making Europe''; by the Universitat Politecnica de Valencia through the grant SP20200109 (PAID-10-20); by grant PRE2019-087579 funded by MCIN/AEI/10.13039/501100011033 and by ''ESF Investing in your future''; and by the Generalitat Valenciana regional government through project CIAICO/2021/064. Funding for open access charge: CRUE-Universitat Politecnica de Valencia.

Analysis of institutional authors

Pajares, AlbertoCorresponding AuthorBlasco, XavierAuthorHerrero, Juan ManuelAuthorVeyna, UrielAuthor

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October 13, 2024
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Advantages of using relevant nearly optimal solutions in multi-objective tuning of robust controllers

Publicated to:Isa Transactions. 139 143-155 - 2023-08-16 139(), DOI: 10.1016/j.isatra.2023.05.003

Authors: Pajares, Alberto; Blasco, Xavier; Herrero, Juan Manuel; Veyna, Uriel

Affiliations

Univ Politecn Valencia, Inst Univ Automat & Informat Ind, Valencia 46022, Spain - Author

Abstract

This paper presents a new approach for the multiobjective optimal design of robust controllers in systems with stochastic parametric uncertainty. Traditionally, uncertainty is incorporated into the optimization process. However, this can generate two problems: (1) low performance in the nominal scenario; and (2) high computational cost. For the first point, it is possible to ensure that the controllers produce an acceptable performance for the nominal scenario in exchange for being lightly robust. For the second point, the methodology proposed in this work reduces the computational cost significantly. This approach addresses uncertainty by analyzing the robustness of optimal and nearly optimal controllers in the nominal scenario. The methodology guarantees obtaining controllers that are similar/neighboring to lightly robust controllers. Two examples of controller design are shown: one for a linear model and another for a nonlinear model. Both examples demonstrate the usefulness of the proposed new approach.& COPY; 2023 The Author(s). Published by Elsevier Ltd on behalf of ISA. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Keywords

Controller tuninController tuningEpsilon-efficient solutionsMulti -objective optimization problemMulti-objective optimization problemOptimizationRobustnessSeUncertainty

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Isa Transactions due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2023, it was in position 8/181, thus managing to position itself as a Q1 (Primer Cuartil), in the category Engineering, Multidisciplinary. Notably, the journal is positioned above the 90th percentile.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.85, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-02, the following number of citations:

  • WoS: 3
  • Scopus: 3

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-02:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 3 (PlumX).

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Pajares Ferrando, Alberto) and Last Author (Veyna Robles, Uriel).

the author responsible for correspondence tasks has been Pajares Ferrando, Alberto.