https://scholars.lib.ntu.edu.tw/handle/123456789/403703
標題: | Reducing uncertainty accumulation in wind-integrated electrical grid | 作者: | Hung T. Chong J. Chan K. |
關鍵字: | Wind energy forecasting; Electricity demand forecasting; Power dispatch; Energy storage sizing; Microgrid; Design under uncertainty | 公開日期: | 1-一月-2017 | 出版社: | PERGAMON-ELSEVIER SCIENCE LTD | 來源出版物: | Energy | 摘要: | © 2017 Elsevier Ltd Implementing microgrids has become a major trend in the electric power industry to move toward energy sustainability. One approach for implementing microgrids is to introduce renewable energy. With the inclusion of renewable energy in a microgrid, an appropriate energy storage capacity is needed to cope with uncertainty variation resulting from renewable energy generation fluctuation. This study proposes a probability-based dispatch strategy for determining energy storage capacity with consideration of wind and load fluctuation. The wind and load models are constructed based on their trends and uncertainty variations. The wavelet packet analysis method and the moving average technique are used to extract the trends of wind energy and load. Log-normal and extreme value distributions are used to model the uncertainties from wind speed and load. This research improves an existing method with reduced uncertainty accumulation, resulting in a more suitable battery size. To validate the proposed method, a real-time operating simulation is used to observe the behavior of a wind-integrated electrical grid. Results show that the proposed method can reduce the effects of uncertainty variation caused by wind and load. A smaller energy storage capacity with higher reliability is also obtained through optimization. |
URI: | https://api.elsevier.com/content/abstract/scopus_id/85030840694 https://scholars.lib.ntu.edu.tw/handle/123456789/403703 |
ISSN: | 03605442 | DOI: | 10.1016/j.energy.2017.10.001 | SDG/關鍵字: | Electric energy storage; Electric industry; Electric power transmission networks; Energy storage; Renewable energy resources; Wind; Wind power; Design under uncertainty; Electricity demand forecasting; Energy forecasting; Micro grid; Power dispatch; Electric load dispatching; design; forecasting method; optimization; simulation; smart grid; uncertainty analysis; wavelet analysis; wind power; wind velocity |
顯示於: | 機械工程學系 |
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