Modeling of grid-connected converter-based sources as equivalent impedances for symmetrical and asymmetrical short-circuit calculation
<p>The study of electrical systems under fault conditions provides fundamental information for proper system protection design and coordination. These studies are traditionally performed in the phasor domain and based on the physical behavior of the synchronous generators directly connected to...
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| Format: | Article |
| Language: | English |
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Instituto Federal de Educação, Ciência e Tecnologia da Paraíba
2020-03-01
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| Series: | Revista Principia |
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| Online Access: | https://periodicos.ifpb.edu.br/index.php/principia/article/view/3539 |
| _version_ | 1811323970015723520 |
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| author | Herick Talles Queiroz Lemos Adriano Aron Freitas Moura Antônio Marcos Fernandes Filho Ednardo Pereira Rocha Ailson Pereira Moura |
| author_facet | Herick Talles Queiroz Lemos Adriano Aron Freitas Moura Antônio Marcos Fernandes Filho Ednardo Pereira Rocha Ailson Pereira Moura |
| author_sort | Herick Talles Queiroz Lemos |
| collection | DOAJ |
| description | <p>The study of electrical systems under fault conditions provides fundamental information for proper system protection design and coordination. These studies are traditionally performed in the phasor domain and based on the physical behavior of the synchronous generators directly connected to the grid. However, the increase of converter-based renewable sources (CBRSs) connections to the grid have created the need for new short-circuit (SC) calculation methods, since, unlike the synchronous generators, the converter SC contribution depends only on its Fault Ride Through (FRT) and active power injection requirements. In this paper, a comprehensive approach for steady-state SC calculation in power systems with CBRSs is proposed. The proposed approach is based on the bus impedance matrix and can be used for symmetrical and asymmetrical SC calculation considering both positive and negative sequence currents from converters as required in the grid codes of many countries. The proposed approach is demonstrated with a 17-bus test system containing converter-controlled photovoltaic (PV) and wind generation submitted to the Brazilian Electric Grid code requirements. By comparing the obtained results with the grid code requirements, the effectiveness of the proposed iterative approach in the estimation of the steady-state SC current contribution from CBRSs is verified.</p> |
| first_indexed | 2024-04-13T14:05:53Z |
| format | Article |
| id | doaj.art-d952db4f80ec425a868770cba6d10405 |
| institution | Directory Open Access Journal |
| issn | 1517-0306 2447-9187 |
| language | English |
| last_indexed | 2024-04-13T14:05:53Z |
| publishDate | 2020-03-01 |
| publisher | Instituto Federal de Educação, Ciência e Tecnologia da Paraíba |
| record_format | Article |
| series | Revista Principia |
| spelling | doaj.art-d952db4f80ec425a868770cba6d104052022-12-22T02:43:55ZengInstituto Federal de Educação, Ciência e Tecnologia da ParaíbaRevista Principia1517-03062447-91872020-03-011489911110.18265/1517-03062015v1n48p99-1111048Modeling of grid-connected converter-based sources as equivalent impedances for symmetrical and asymmetrical short-circuit calculationHerick Talles Queiroz Lemos0Adriano Aron Freitas Moura1Antônio Marcos Fernandes Filho2Ednardo Pereira Rocha3Ailson Pereira Moura4Universidade Federal Rural do Semi-Árido (UFERSA)Universidade Federal Rural do Semi-Árido (UFERSA)Instituto Federal de Educação Ciência e Tecnologia do Ceará (IFCE)Universidade Federal Rural do Semi-Árido (UFERSA)Universidade Federal do Ceará (UFC)<p>The study of electrical systems under fault conditions provides fundamental information for proper system protection design and coordination. These studies are traditionally performed in the phasor domain and based on the physical behavior of the synchronous generators directly connected to the grid. However, the increase of converter-based renewable sources (CBRSs) connections to the grid have created the need for new short-circuit (SC) calculation methods, since, unlike the synchronous generators, the converter SC contribution depends only on its Fault Ride Through (FRT) and active power injection requirements. In this paper, a comprehensive approach for steady-state SC calculation in power systems with CBRSs is proposed. The proposed approach is based on the bus impedance matrix and can be used for symmetrical and asymmetrical SC calculation considering both positive and negative sequence currents from converters as required in the grid codes of many countries. The proposed approach is demonstrated with a 17-bus test system containing converter-controlled photovoltaic (PV) and wind generation submitted to the Brazilian Electric Grid code requirements. By comparing the obtained results with the grid code requirements, the effectiveness of the proposed iterative approach in the estimation of the steady-state SC current contribution from CBRSs is verified.</p>https://periodicos.ifpb.edu.br/index.php/principia/article/view/3539short-circuit analysisfull-scale convertersdistributed generationtype iv wind turbinephotovoltaic generators. |
| spellingShingle | Herick Talles Queiroz Lemos Adriano Aron Freitas Moura Antônio Marcos Fernandes Filho Ednardo Pereira Rocha Ailson Pereira Moura Modeling of grid-connected converter-based sources as equivalent impedances for symmetrical and asymmetrical short-circuit calculation Revista Principia short-circuit analysis full-scale converters distributed generation type iv wind turbine photovoltaic generators. |
| title | Modeling of grid-connected converter-based sources as equivalent impedances for symmetrical and asymmetrical short-circuit calculation |
| title_full | Modeling of grid-connected converter-based sources as equivalent impedances for symmetrical and asymmetrical short-circuit calculation |
| title_fullStr | Modeling of grid-connected converter-based sources as equivalent impedances for symmetrical and asymmetrical short-circuit calculation |
| title_full_unstemmed | Modeling of grid-connected converter-based sources as equivalent impedances for symmetrical and asymmetrical short-circuit calculation |
| title_short | Modeling of grid-connected converter-based sources as equivalent impedances for symmetrical and asymmetrical short-circuit calculation |
| title_sort | modeling of grid connected converter based sources as equivalent impedances for symmetrical and asymmetrical short circuit calculation |
| topic | short-circuit analysis full-scale converters distributed generation type iv wind turbine photovoltaic generators. |
| url | https://periodicos.ifpb.edu.br/index.php/principia/article/view/3539 |
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