Influence of Load Dynamics on Converter-Dominated Isolated Power Systems
The operation of isolated power systems with 100% converter-based generation requires the integration of battery energy storage systems (BESS) using grid-forming-type power converters. Under these operating conditions, load dynamics influences the network frequency and voltage following large voltag...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-03-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/11/5/2341 |
| _version_ | 1797413033767600128 |
|---|---|
| author | José Gouveia Carlos L. Moreira João A. Peças Lopes |
| author_facet | José Gouveia Carlos L. Moreira João A. Peças Lopes |
| author_sort | José Gouveia |
| collection | DOAJ |
| description | The operation of isolated power systems with 100% converter-based generation requires the integration of battery energy storage systems (BESS) using grid-forming-type power converters. Under these operating conditions, load dynamics influences the network frequency and voltage following large voltage disturbances. In this sense, the inclusion of induction motor (IM) load models is required to be properly considered in BESS power converter sizing. Thus, this paper presents an extensive sensitivity analysis, demonstrating how load modeling affects the BESS power converter capacity when adopting conventional control strategies while aiming to assure the successful recovery of all IM loads following a network fault. Furthermore, this work highlights that generators with converter interfaces can actively contribute to mitigate the negative impacts resulting from IM loads following a network fault. Thereby, two distinct control strategies are proposed to be integrated in the power electronic interfaces of the available converter-based generators: one to be adopted in grid-following converters and another one suitable for grid-forming converters. The proposed control strategies provide an important contribution to consolidating insular grid codes, aiming to achieve operational scenarios accommodating 100% penetration of converter-based generation with a significative percentage of the IM load composition without resorting to a significative increase in BESS power converter sizing. |
| first_indexed | 2024-03-09T05:11:42Z |
| format | Article |
| id | doaj.art-1ff14c68933949e9ac62692bcec7e370 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T05:11:42Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-1ff14c68933949e9ac62692bcec7e3702023-12-03T12:48:13ZengMDPI AGApplied Sciences2076-34172021-03-01115234110.3390/app11052341Influence of Load Dynamics on Converter-Dominated Isolated Power SystemsJosé Gouveia0Carlos L. Moreira1João A. Peças Lopes2INESC Technology and Science, 4099-002 Porto, PortugalINESC Technology and Science, 4099-002 Porto, PortugalINESC Technology and Science, 4099-002 Porto, PortugalThe operation of isolated power systems with 100% converter-based generation requires the integration of battery energy storage systems (BESS) using grid-forming-type power converters. Under these operating conditions, load dynamics influences the network frequency and voltage following large voltage disturbances. In this sense, the inclusion of induction motor (IM) load models is required to be properly considered in BESS power converter sizing. Thus, this paper presents an extensive sensitivity analysis, demonstrating how load modeling affects the BESS power converter capacity when adopting conventional control strategies while aiming to assure the successful recovery of all IM loads following a network fault. Furthermore, this work highlights that generators with converter interfaces can actively contribute to mitigate the negative impacts resulting from IM loads following a network fault. Thereby, two distinct control strategies are proposed to be integrated in the power electronic interfaces of the available converter-based generators: one to be adopted in grid-following converters and another one suitable for grid-forming converters. The proposed control strategies provide an important contribution to consolidating insular grid codes, aiming to achieve operational scenarios accommodating 100% penetration of converter-based generation with a significative percentage of the IM load composition without resorting to a significative increase in BESS power converter sizing.https://www.mdpi.com/2076-3417/11/5/2341grid-forming convertergrid-following converterinduction motorisolated power systemsload modelingvirtual synchronous machine |
| spellingShingle | José Gouveia Carlos L. Moreira João A. Peças Lopes Influence of Load Dynamics on Converter-Dominated Isolated Power Systems Applied Sciences grid-forming converter grid-following converter induction motor isolated power systems load modeling virtual synchronous machine |
| title | Influence of Load Dynamics on Converter-Dominated Isolated Power Systems |
| title_full | Influence of Load Dynamics on Converter-Dominated Isolated Power Systems |
| title_fullStr | Influence of Load Dynamics on Converter-Dominated Isolated Power Systems |
| title_full_unstemmed | Influence of Load Dynamics on Converter-Dominated Isolated Power Systems |
| title_short | Influence of Load Dynamics on Converter-Dominated Isolated Power Systems |
| title_sort | influence of load dynamics on converter dominated isolated power systems |
| topic | grid-forming converter grid-following converter induction motor isolated power systems load modeling virtual synchronous machine |
| url | https://www.mdpi.com/2076-3417/11/5/2341 |
| work_keys_str_mv | AT josegouveia influenceofloaddynamicsonconverterdominatedisolatedpowersystems AT carloslmoreira influenceofloaddynamicsonconverterdominatedisolatedpowersystems AT joaoapecaslopes influenceofloaddynamicsonconverterdominatedisolatedpowersystems |