Modelling and Validation of a Grid-Connected DFIG by Exploiting the Frequency-Domain Harmonic Analysis
Wind Energy Conversion Systems (WECS) based on a Doubly-Fed Induction Generator (DFIG) represent the most common configuration employed in wind turbines. These systems involve injecting harmonic currents toward an electrical grid from a back-to-back power converter, potentially creating voltage dist...
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MDPI AG
2020-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/24/9014 |
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| author | Emmanuel Hernández-Mayoral Reynaldo Iracheta-Cortez Vincent Lecheppe Oscar Alfredo Jaramillo Salgado |
| author_facet | Emmanuel Hernández-Mayoral Reynaldo Iracheta-Cortez Vincent Lecheppe Oscar Alfredo Jaramillo Salgado |
| author_sort | Emmanuel Hernández-Mayoral |
| collection | DOAJ |
| description | Wind Energy Conversion Systems (WECS) based on a Doubly-Fed Induction Generator (DFIG) represent the most common configuration employed in wind turbines. These systems involve injecting harmonic currents toward an electrical grid from a back-to-back power converter, potentially creating voltage distortions. To assess this phenomenon, a case study of a 3 kW DFIG-based wind turbine connected to the electrical grid is presented for analysis in the harmonic domain. Initially, a DFIG-based load flow analysis for determining the operating conditions is tackled at the fundamental frequency. Then, the modelling of a DFIG under steady-state operating conditions at harmonic frequencies is analyzed discussing its characteristics in the harmonic domain. The high-frequency harmonics in the output voltage of a pulse width modulation-driven inverter feeding the rotor windings of a DFIG and its connection to a three-winding transformer are also analyzed. This investigation produced a complete model of the DFIG connected to the electrical grid. The results demonstrated that although a considerable harmonic contribution up to the 25th order exists, it remains harmless since it is below 5%, according to the Std. IEEE 519. |
| first_indexed | 2024-03-10T14:00:04Z |
| format | Article |
| id | doaj.art-6bb5745941104d9fbb9f5c2d48b30eee |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T14:00:04Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-6bb5745941104d9fbb9f5c2d48b30eee2023-11-21T01:12:57ZengMDPI AGApplied Sciences2076-34172020-12-011024901410.3390/app10249014Modelling and Validation of a Grid-Connected DFIG by Exploiting the Frequency-Domain Harmonic AnalysisEmmanuel Hernández-Mayoral0Reynaldo Iracheta-Cortez1Vincent Lecheppe2Oscar Alfredo Jaramillo Salgado3CONACyT Attached to Instituto de Energías Renovables, Universidad Nacional Autónoma de Mexico, 62580 Temixco, Mor., MexicoCONACyT Attached to Isthmus University, Av. University, Azteca, 70760 Tehuantepec, Oax., MexicoUniversité de Lyon, INSA Lyon, ECL, Université Claude Bernand Lyon 1, CNRS UMR5005, Ampère, 69100 Villeurbanne, FranceInstituto de Energías Renovables, Universidad Nacional Autónoma de Mexico, 62580 Temixco, Mor., MexicoWind Energy Conversion Systems (WECS) based on a Doubly-Fed Induction Generator (DFIG) represent the most common configuration employed in wind turbines. These systems involve injecting harmonic currents toward an electrical grid from a back-to-back power converter, potentially creating voltage distortions. To assess this phenomenon, a case study of a 3 kW DFIG-based wind turbine connected to the electrical grid is presented for analysis in the harmonic domain. Initially, a DFIG-based load flow analysis for determining the operating conditions is tackled at the fundamental frequency. Then, the modelling of a DFIG under steady-state operating conditions at harmonic frequencies is analyzed discussing its characteristics in the harmonic domain. The high-frequency harmonics in the output voltage of a pulse width modulation-driven inverter feeding the rotor windings of a DFIG and its connection to a three-winding transformer are also analyzed. This investigation produced a complete model of the DFIG connected to the electrical grid. The results demonstrated that although a considerable harmonic contribution up to the 25th order exists, it remains harmless since it is below 5%, according to the Std. IEEE 519.https://www.mdpi.com/2076-3417/10/24/9014Doubly-Fed Induction Generator (DFIG)back-to-back power converterharmonic analysissteady-state studiesload flow calculation |
| spellingShingle | Emmanuel Hernández-Mayoral Reynaldo Iracheta-Cortez Vincent Lecheppe Oscar Alfredo Jaramillo Salgado Modelling and Validation of a Grid-Connected DFIG by Exploiting the Frequency-Domain Harmonic Analysis Applied Sciences Doubly-Fed Induction Generator (DFIG) back-to-back power converter harmonic analysis steady-state studies load flow calculation |
| title | Modelling and Validation of a Grid-Connected DFIG by Exploiting the Frequency-Domain Harmonic Analysis |
| title_full | Modelling and Validation of a Grid-Connected DFIG by Exploiting the Frequency-Domain Harmonic Analysis |
| title_fullStr | Modelling and Validation of a Grid-Connected DFIG by Exploiting the Frequency-Domain Harmonic Analysis |
| title_full_unstemmed | Modelling and Validation of a Grid-Connected DFIG by Exploiting the Frequency-Domain Harmonic Analysis |
| title_short | Modelling and Validation of a Grid-Connected DFIG by Exploiting the Frequency-Domain Harmonic Analysis |
| title_sort | modelling and validation of a grid connected dfig by exploiting the frequency domain harmonic analysis |
| topic | Doubly-Fed Induction Generator (DFIG) back-to-back power converter harmonic analysis steady-state studies load flow calculation |
| url | https://www.mdpi.com/2076-3417/10/24/9014 |
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