Application of battery-supercapacitor energy storage system for smoothing wind power output: An optimal coordinated control strategy

In the application of energy storage for smoothing wind power output, the combination of battery and supercapacitor (SC) is considered as an effective alternative to improve the battery lifetime and enhance the system economy. In this paper, third-order Butterworth low-pass filter and high-pass filt...

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Bibliographic Details
Published in2016 IEEE Power and Energy Society General Meeting (PESGM) pp. 1 - 5
Main Authors Linquan Bai, Fangxing Li, Qinran Hu, Hantao Cui, Xin Fang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2016
Subjects
Batteries
Battery
Cutoff frequency
filter
Fluctuations
hybrid energy storage
Low-pass filters
optimal coordinated control
power smoothing
State of charge
supercapacitor
Wind power generation
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Summary:In the application of energy storage for smoothing wind power output, the combination of battery and supercapacitor (SC) is considered as an effective alternative to improve the battery lifetime and enhance the system economy. In this paper, third-order Butterworth low-pass filter and high-pass filter are adopted to smooth the wind power and allocate power between battery and SC. Then, an optimal coordinated control strategy is proposed to determine the cut-off frequencies of the two filters and the power sharing between battery and SC. With this strategy, the total deprecation cost of the system caused by charge/discharge is minimized while satisfying the requirements of wind power integration. Finally, the effectiveness of the proposed method is demonstrated with a simulation study.
ISSN:1944-9933
DOI:10.1109/PESGM.2016.7741798