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| Content Provider | IET Digital Library |
|---|---|
| Author | Guillamón, Ana Fernández Rodríguez, Antonio Vigueras García, Ángel Molina |
| Abstract | Nowadays, power system inertia is changing as a consequence of replacing conventional units by renewable energy sources, mainly wind and photovoltaic power plants. This fact affects significantly the grid frequency response under power imbalances. As a result, new frequency control strategies for renewable plants are being developed to emulate the behaviour of conventional power plants under such contingencies. These approaches are usually called ‘virtual inertia emulation techniques’. In this study, an analysis of power system inertia estimation from frequency excursions is carried out by considering different inertia estimation methodologies, discussing the applicability and coherence of these methodologies under the new supply-side circumstances. The modelled power system involves conventional units and wind power plants including wind frequency control strategies in line with current mix generation scenarios. Results show that all methodologies considered provide an accurate result to estimate the equivalent inertia based on rotational generation units directly connected to the grid. However, significant discrepancies are found when frequency control strategies are included in wind power plants decoupled from the grid. In this way, authors consider that it is necessary to define alternative inertia estimation methodologies by including virtual inertia emulation. Extensive discussion and results are also provided in this study. |
| Starting Page | 2807 |
| Ending Page | 2816 |
| Page Count | 10 |
| ISSN | 17521416 |
| Volume Number | 13 |
| e-ISSN | 17521424 |
| Issue Number | Issue 15, Nov (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/13/15 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.0220 |
| Journal | IET Renewable Power Generation |
| Publisher Date | 2019-08-19 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Alternative Inertia Estimation Methodologies Control of Electric Power System Conventional Power Plants Conventional Units Different Inertia Estimation Methodologies Distributed Power Generation Equivalent Inertia Frequency Control Frequency Excursions Frequency Response Grid Frequency Response High Wind Power Plant Integration Scenario Modelled Power System Photovoltaic Power Plant Photovoltaic Power System Power Generation Control Power Generation Fault Power Grid Power Imbalances Power System Control Power System Inertia Estimation Power System Stability Renewable Energy Source Renewable Plant Solar Power Stations Synchronous Generator Synchronous Machine Virtual Inertia Emulation Technique Wind Frequency Control Strategy Wind Power Plant |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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