Surrogate Modeling of Electrical Machine Torque Using Artificial Neural Networks

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2020
Major/Subject
Mcode
Degree programme
Language
en
Pages
220027-220045
Series
IEEE Access, Volume 8
Abstract
Machine learning and artificial neural networks have shown to be applicable in modeling and simulation of complex physical phenomena as well as creating surrogate models trained with physics-based simulation data for numerous applications that require good computational performance. In this article, we review widely the surrogate modeling concept and its applications in the electrical machine context. We present comprehensively a workflow for developing data-driven surrogate models including data generation with physics-based simulation and design of experiments, preprocessing of training data, and training and testing of the surrogates. We compare neural networks and gradient boosting decision trees in modeling and simulation of torque behavior of a permanent magnet synchronous machine together with selected design of experiments approaches with respect to surrogate accuracy and computational efficiency. In addition, an approach to utilizing domain knowledge to create a hybrid surrogate model in order to improve the surrogate accuracy is shown. The accuracy of the selected hybrid neural network was better than with the gradient boosting approach and was close to the finite element simulation, whereas its run-time efficiency was significantly better compared to the finite element simulation with a speed-up factor of over 2,000. In addition, combining the sampling methods provided better results than the selected methods alone.
Description
| openaire: EC/H2020/826452/EU//Arrowhead Tools
Keywords
Artificial neural networks, design of experiments, electromagnetic modeling, machine learning, numerical simulation, permanent magnet machine, surrogate model
Other note
Citation
Tahkola , M , Keranen , J , Sedov , D , Far , M F & Kortelainen , J 2020 , ' Surrogate Modeling of Electrical Machine Torque Using Artificial Neural Networks ' , IEEE Access , vol. 8 , pp. 220027-220045 . https://doi.org/10.1109/ACCESS.2020.3042834