A Novel Excitation Approach for Power Transformer Simulation Based on Finite Element Analysis

Power transformers play an indispensable component in AC transmission systems. If the operating condition of a power transformer can be accurately predicted before the equipment is operated, it will help transformer manufacturers to design optimized power transformers. In the optimal design of the p...

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Main Authors: Wen-Ching Chang, Cheng-Chien Kuo
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/21/10334
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author Wen-Ching Chang
Cheng-Chien Kuo
author_facet Wen-Ching Chang
Cheng-Chien Kuo
author_sort Wen-Ching Chang
collection DOAJ
description Power transformers play an indispensable component in AC transmission systems. If the operating condition of a power transformer can be accurately predicted before the equipment is operated, it will help transformer manufacturers to design optimized power transformers. In the optimal design of the power transformer, the design value of the magnetic flux density in the core is important, and it affects the efficiency, cost, and life cycle. Therefore, this paper uses the software of ANSYS Maxwell to solve the instantaneous magnetic flux density distribution, core loss distribution, and total iron loss of the iron core based on the finite element method in the time domain. In addition, a new external excitation equation is proposed. The new external excitation equation can improve the accuracy of the simulation results and reduce the simulation time. Finally, the three-phase five-limb transformer is developed, and actually measures the local magnetic flux density and total core loss to verify the feasibility of the proposed finite element method of model and simulation parameters.
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spelling doaj.art-cb7af01e95004b0ca599489e9bfc8a9a2023-11-22T20:31:16ZengMDPI AGApplied Sciences2076-34172021-11-0111211033410.3390/app112110334A Novel Excitation Approach for Power Transformer Simulation Based on Finite Element AnalysisWen-Ching Chang0Cheng-Chien Kuo1Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei 106, TaiwanDepartment of Electrical Engineering, National Taiwan University of Science and Technology, Taipei 106, TaiwanPower transformers play an indispensable component in AC transmission systems. If the operating condition of a power transformer can be accurately predicted before the equipment is operated, it will help transformer manufacturers to design optimized power transformers. In the optimal design of the power transformer, the design value of the magnetic flux density in the core is important, and it affects the efficiency, cost, and life cycle. Therefore, this paper uses the software of ANSYS Maxwell to solve the instantaneous magnetic flux density distribution, core loss distribution, and total iron loss of the iron core based on the finite element method in the time domain. In addition, a new external excitation equation is proposed. The new external excitation equation can improve the accuracy of the simulation results and reduce the simulation time. Finally, the three-phase five-limb transformer is developed, and actually measures the local magnetic flux density and total core loss to verify the feasibility of the proposed finite element method of model and simulation parameters.https://www.mdpi.com/2076-3417/11/21/10334finite element analysisthree-phase five-limb transformercore lossmagnetic field distribution
spellingShingle Wen-Ching Chang
Cheng-Chien Kuo
A Novel Excitation Approach for Power Transformer Simulation Based on Finite Element Analysis
Applied Sciences
finite element analysis
three-phase five-limb transformer
core loss
magnetic field distribution
title A Novel Excitation Approach for Power Transformer Simulation Based on Finite Element Analysis
title_full A Novel Excitation Approach for Power Transformer Simulation Based on Finite Element Analysis
title_fullStr A Novel Excitation Approach for Power Transformer Simulation Based on Finite Element Analysis
title_full_unstemmed A Novel Excitation Approach for Power Transformer Simulation Based on Finite Element Analysis
title_short A Novel Excitation Approach for Power Transformer Simulation Based on Finite Element Analysis
title_sort novel excitation approach for power transformer simulation based on finite element analysis
topic finite element analysis
three-phase five-limb transformer
core loss
magnetic field distribution
url https://www.mdpi.com/2076-3417/11/21/10334
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