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Research Article |

Research on Wind Energy Fluctuation Stabilization and Hybrid Energy Storage Capacity Optimization Strategy Based on EWD

With the increase of installed capacity of wind power in China, the randomness and fluctuation of wind power output power make the grid frequency modulation more difficult. To solve this problem, a hybrid energy storage system composed of lithium batteries and super-capacitors is used to stabilize the wind power output. This study focuses on the smoothing strategies and capacity configuration methods of hybrid energy storage system, which is of great significance to increase its utilization rate and reduce energy storage capacity. An empirical wavelet decomposition method is used to decompose the wind farm output power data and obtain the charging and discharging instructions of hybrid energy storage system. For the smoothing power of energy storage system, high frequency decomposition is carried out with the lowest cost as the target to obtain the capacity optimization strategy of different types of energy storage. This study also analyzes the typical 8-day output power data of a wind farm and optimizes the power and capacity allocation of lithium battery and supercapacitor through combining numerical examples with wind power system grid power calculation. The numerical examples verify the effectiveness of the proposed smoothing method and capacity optimization algorithm.

Wind Power Fluctuation, Hybrid Energy Storage System (HESS), Empirical Wavelet Decomposition (EWD), Empirical Mode Decomposition (EMD), Wavelet Decomposition

APA Style

Lv, Z., Wang, Z., An, C. (2023). Research on Wind Energy Fluctuation Stabilization and Hybrid Energy Storage Capacity Optimization Strategy Based on EWD. International Journal of Energy and Power Engineering, 12(6), 100-108.

ACS Style

Lv, Z.; Wang, Z.; An, C. Research on Wind Energy Fluctuation Stabilization and Hybrid Energy Storage Capacity Optimization Strategy Based on EWD. Int. J. Energy Power Eng. 2023, 12(6), 100-108. doi: 10.11648/j.ijepe.20231206.13

AMA Style

Lv Z, Wang Z, An C. Research on Wind Energy Fluctuation Stabilization and Hybrid Energy Storage Capacity Optimization Strategy Based on EWD. Int J Energy Power Eng. 2023;12(6):100-108. doi: 10.11648/j.ijepe.20231206.13

Copyright © 2023 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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