NDLI: Core form transformer topological duality based transient model validation for exciting current calculation within DC bias

Content Provider	IET Digital Library
Author	Li, Jinlong Li, Jinzhong
Abstract	Transformer topological duality-based transient model (TDuM) has been widely used in the electromagnetic transient (EMT) simulation to consider the impact of core non-linear features and windings arrangement on exciting current. In this study, the transformer TDuMs that specialized for geomagnetically induced current events studying were validated. After a summary of the transformer TDuMs' derivation and their parameters estimation methodologies, the numerical experiments were carried out to investigate the transformer TDuMs and their related key issues such as core's material types, loss factor of hysteresis model, linear leakage inductance, tank wall with EMT analysis software. The numerical results show a good agreement with the measured data in the field experiments with DC bias applied, which mean that using the transformer TDuM to calculate the exciting current under DC bias condition is feasible. Besides, some practical tips were proposed based on the parameters sensitivity analysis for estimating the transformer TDuMs' parameters to study the transformers' dynamics under DC bias condition.
Starting Page	3099
Ending Page	3107
Page Count	9
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 15, Aug (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1174
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-04-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Core Form Transformer Topological Duality-based Transient Model Validation Core Nonlinear Features DC Bias Condition Duality (mathematics) Electromagnetic Transient Simulation EMT Analysis Software EMT Simulation Exciting Current Calculation Field Experiments Geomagnetically Induced Current Events Hysteresis Model Linear Leakage Inductance Loss Factor Numerical Analysis Numerical Method Parameter Estimation Parameter Estimation Methodologies Parameter Sensitivity Analysis Power Transformer Sensitivity Analysis Tank Wall Transformer And Reactors Transformer Cores Transformer Dynamics Transformer TDuM Derivation Transformer TDuM Parameter Estimation Transient Analysis Winding Arrangement
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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