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http://dx.doi.org/10.5370/JEET.2009.4.2.229

Correction of the Approximation Error in the Time-Stepping Finite Element Method  

Kim, Byung-Taek (Dept. of Electrical Engineering, Kunsan National University)
Yu, Byoung-Hun (Dept. of Electrical Engineering, Kunsan National University)
Choit, Myoung-Hyun (Dept. of Electrical Engineering, Kunsan National University)
Kim, Ho-Hyun (Dept. of Electrical Engineering, Kunsan National University)
Publication Information
Journal of Electrical Engineering and Technology / v.4, no.2, 2009 , pp. 229-233 More about this Journal
Abstract
This paper proposes a correction method for the error inherently created by time-step approximation in finite element analysis (FEA). For a simple RL and RLC linear circuit, the error in time-step analysis is analytically investigated, and a correction method is proposed for a non-linear system as well as a linear one. Then, for a practical inductor model, linear and non-linear time-step analyses are performed and the calculation results are corrected by the proposed methods. The accuracy of the corrected results is confirmed by comparing the electric input and output powers.
Keywords
Correction method; Finite element method; Non-linear; Time-step approximation;
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