Comparison of simplified techniques for solving selected coupled electroheat problems
ISSN: 0332-1649
Article publication date: 17 January 2020
Issue publication date: 11 March 2020
Abstract
Purpose
The purpose of this paper is to compare different reduced-order models for models of control of induction brazing process. In the presented application, the problem is to reconstruct temperature at the points of interests (hot spots) from information measured at accessible places.
Design/methodology/approach
The paper describes the process of induction brazing. It presents the full field model and evaluates the possibilities for obtaining reduced models for temperature estimation. The primary attention is paid to the model based on proper orthogonal decomposition (POD).
Findings
The paper shows that for the given application, it is possible to find low-order estimator. In the examined linear case, the best estimator was created using POD reduced model together with the linear Kalman filter.
Research limitations/implications
The authors are aware of two main limitations of the presented study: material properties are considered linear, which is not a completely realistic assumption. However, if strong coupling and nonlinear material parameters are considered, the model becomes unsolvable. The process and measurement uncertainties are not considered.
Originality/value
The paper deals with POD of multi-physics 3 D application of induction brazing. The paper compares 11 different methods for temperature estimator design.
Keywords
Citation
Pánek, D., Karban, P., Orosz, T. and Doležel, I. (2020), "Comparison of simplified techniques for solving selected coupled electroheat problems", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 39 No. 1, pp. 220-230. https://doi.org/10.1108/COMPEL-06-2019-0244
Publisher
:Emerald Publishing Limited
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