Performance Analysis and Model Improvements for Electromagnetic Transient State Estimators
State estimation techniques for the study of electromagnetic transients use measurement records to analyze the propagation of such effects to other unmonitored locations within an electrical grid. Among the approaches mentioned in the literature, strategies based on numerical derivatives and integra...
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| Format: | Article |
| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/10947757/ |
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| author | Humberto Cunha de Oliveira Vinicius Henrique Faria Brito Jose Carlos de Oliveira Isaque Nogueira Gondim |
| author_facet | Humberto Cunha de Oliveira Vinicius Henrique Faria Brito Jose Carlos de Oliveira Isaque Nogueira Gondim |
| author_sort | Humberto Cunha de Oliveira |
| collection | DOAJ |
| description | State estimation techniques for the study of electromagnetic transients use measurement records to analyze the propagation of such effects to other unmonitored locations within an electrical grid. Among the approaches mentioned in the literature, strategies based on numerical derivatives and integrative substitutions stand out because of their implementation facilities and effective responses. However, since these procedures typically rely on simplified component models that omit parameters essential for transient phenomena analysis, inaccurate estimator responses can result. Due to the lack of comparative studies on state estimation methods for electromagnetic transients, this article presents a comparative evaluation of two widely recognized approaches: Numerical Integration Substitution (NIS) and Numerical Derivative Substitution (NDS). In addition, improvements in transformer modeling are proposed for both methods by incorporating previously neglected parameters, such as winding resistances and stray capacitances. Both methods are assessed through computational and experimental simulations, highlighting their performance in terms of accuracy and numerical stability. The results demonstrate that the proposed improvements enhance the estimation accuracy of both methods. Moreover, the improved NDS approach consistently outperforms NIS, exhibiting better convergence under conditions involving high-frequency transients. |
| format | Article |
| id | doaj-art-c8d6632469d045c7aec32dc7167e2d45 |
| institution | OA Journals |
| issn | 2169-3536 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj-art-c8d6632469d045c7aec32dc7167e2d452025-08-20T02:12:34ZengIEEEIEEE Access2169-35362025-01-0113631576316910.1109/ACCESS.2025.355728610947757Performance Analysis and Model Improvements for Electromagnetic Transient State EstimatorsHumberto Cunha de Oliveira0https://orcid.org/0000-0001-9100-1532Vinicius Henrique Faria Brito1https://orcid.org/0000-0003-3834-3124Jose Carlos de Oliveira2https://orcid.org/0000-0002-5825-317XIsaque Nogueira Gondim3Electrical Engineering Faculty, Federal University of Uberlândia, Uberlândia, Minas Gerais, BrazilElectrical Engineering Faculty, Federal University of Uberlândia, Uberlândia, Minas Gerais, BrazilElectrical Engineering Faculty, Federal University of Uberlândia, Uberlândia, Minas Gerais, BrazilElectrical Engineering Faculty, Federal University of Uberlândia, Uberlândia, Minas Gerais, BrazilState estimation techniques for the study of electromagnetic transients use measurement records to analyze the propagation of such effects to other unmonitored locations within an electrical grid. Among the approaches mentioned in the literature, strategies based on numerical derivatives and integrative substitutions stand out because of their implementation facilities and effective responses. However, since these procedures typically rely on simplified component models that omit parameters essential for transient phenomena analysis, inaccurate estimator responses can result. Due to the lack of comparative studies on state estimation methods for electromagnetic transients, this article presents a comparative evaluation of two widely recognized approaches: Numerical Integration Substitution (NIS) and Numerical Derivative Substitution (NDS). In addition, improvements in transformer modeling are proposed for both methods by incorporating previously neglected parameters, such as winding resistances and stray capacitances. Both methods are assessed through computational and experimental simulations, highlighting their performance in terms of accuracy and numerical stability. The results demonstrate that the proposed improvements enhance the estimation accuracy of both methods. Moreover, the improved NDS approach consistently outperforms NIS, exhibiting better convergence under conditions involving high-frequency transients.https://ieeexplore.ieee.org/document/10947757/Electromagnetic transientspower system analysistransient state estimationdynamic modeltransformer leakage capacitances |
| spellingShingle | Humberto Cunha de Oliveira Vinicius Henrique Faria Brito Jose Carlos de Oliveira Isaque Nogueira Gondim Performance Analysis and Model Improvements for Electromagnetic Transient State Estimators IEEE Access Electromagnetic transients power system analysis transient state estimation dynamic model transformer leakage capacitances |
| title | Performance Analysis and Model Improvements for Electromagnetic Transient State Estimators |
| title_full | Performance Analysis and Model Improvements for Electromagnetic Transient State Estimators |
| title_fullStr | Performance Analysis and Model Improvements for Electromagnetic Transient State Estimators |
| title_full_unstemmed | Performance Analysis and Model Improvements for Electromagnetic Transient State Estimators |
| title_short | Performance Analysis and Model Improvements for Electromagnetic Transient State Estimators |
| title_sort | performance analysis and model improvements for electromagnetic transient state estimators |
| topic | Electromagnetic transients power system analysis transient state estimation dynamic model transformer leakage capacitances |
| url | https://ieeexplore.ieee.org/document/10947757/ |
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