Surrogate Model for Design Uncertainty Estimation of Nonlinear Electromagnetic Vibration Energy Harvester

The paper proposes a solution to the problem of estimating the uncertainty of the output power with respect to the design parameters for an electromagnetic vibration energy harvesting converter. Due to costly utilisation of time-domain mathematical models involved in the procedure of determination o...

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Main Authors: Marcin Kulik, Rafał Gabor, Mariusz Jagieła
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/22/8601
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author Marcin Kulik
Rafał Gabor
Mariusz Jagieła
author_facet Marcin Kulik
Rafał Gabor
Mariusz Jagieła
author_sort Marcin Kulik
collection DOAJ
description The paper proposes a solution to the problem of estimating the uncertainty of the output power with respect to the design parameters for an electromagnetic vibration energy harvesting converter. Due to costly utilisation of time-domain mathematical models involved in the procedure of determination of the average output power of the system, an algorithm for developing the surrogate model that enables rapid estimation of this quantity within the prescribed frequency band limits is proposed. As a result, the metamodel sensitive to the most impactful design parameters is developed using Kriging with successive refinement of the design grid for gaining the accuracy. Under operational conditions with a constant magnitude of the acceleration signal and the prescribed frequency band limits, the surrogate model enables evaluation of the average output power of the system at 10<sup>5</sup> design points in less than 2 s of computer execution time. The consistency and accuracy of the results obtained from the surrogate model is confirmed by comparison of selected results of computations with measurements carried out on the manufactured prototype. Based on the latter and the surrogate model, the confidence intervals for the design procedure were determined and the most important spread quantities were estimated, providing quantitative information on the accuracy of the design procedure developed for the considered system.
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spelling doaj.art-d5466e7b8105406fa2fdd61fbd53775f2023-11-24T08:15:39ZengMDPI AGEnergies1996-10732022-11-011522860110.3390/en15228601Surrogate Model for Design Uncertainty Estimation of Nonlinear Electromagnetic Vibration Energy HarvesterMarcin Kulik0Rafał Gabor1Mariusz Jagieła2Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, Proszkowska 76, 45-758 Opole, PolandFaculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, Proszkowska 76, 45-758 Opole, PolandFaculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, Proszkowska 76, 45-758 Opole, PolandThe paper proposes a solution to the problem of estimating the uncertainty of the output power with respect to the design parameters for an electromagnetic vibration energy harvesting converter. Due to costly utilisation of time-domain mathematical models involved in the procedure of determination of the average output power of the system, an algorithm for developing the surrogate model that enables rapid estimation of this quantity within the prescribed frequency band limits is proposed. As a result, the metamodel sensitive to the most impactful design parameters is developed using Kriging with successive refinement of the design grid for gaining the accuracy. Under operational conditions with a constant magnitude of the acceleration signal and the prescribed frequency band limits, the surrogate model enables evaluation of the average output power of the system at 10<sup>5</sup> design points in less than 2 s of computer execution time. The consistency and accuracy of the results obtained from the surrogate model is confirmed by comparison of selected results of computations with measurements carried out on the manufactured prototype. Based on the latter and the surrogate model, the confidence intervals for the design procedure were determined and the most important spread quantities were estimated, providing quantitative information on the accuracy of the design procedure developed for the considered system.https://www.mdpi.com/1996-1073/15/22/8601energy harvestingelectromagnetic transducernonlinear resonancekriginguncertainty analysis
spellingShingle Marcin Kulik
Rafał Gabor
Mariusz Jagieła
Surrogate Model for Design Uncertainty Estimation of Nonlinear Electromagnetic Vibration Energy Harvester
Energies
energy harvesting
electromagnetic transducer
nonlinear resonance
kriging
uncertainty analysis
title Surrogate Model for Design Uncertainty Estimation of Nonlinear Electromagnetic Vibration Energy Harvester
title_full Surrogate Model for Design Uncertainty Estimation of Nonlinear Electromagnetic Vibration Energy Harvester
title_fullStr Surrogate Model for Design Uncertainty Estimation of Nonlinear Electromagnetic Vibration Energy Harvester
title_full_unstemmed Surrogate Model for Design Uncertainty Estimation of Nonlinear Electromagnetic Vibration Energy Harvester
title_short Surrogate Model for Design Uncertainty Estimation of Nonlinear Electromagnetic Vibration Energy Harvester
title_sort surrogate model for design uncertainty estimation of nonlinear electromagnetic vibration energy harvester
topic energy harvesting
electromagnetic transducer
nonlinear resonance
kriging
uncertainty analysis
url https://www.mdpi.com/1996-1073/15/22/8601
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AT rafałgabor surrogatemodelfordesignuncertaintyestimationofnonlinearelectromagneticvibrationenergyharvester
AT mariuszjagieła surrogatemodelfordesignuncertaintyestimationofnonlinearelectromagneticvibrationenergyharvester