陈科彬,邱晓燕,史光耀,李星雨.基于滑动平均与小波包分解的混合储能容量优化[J].电测与仪表,2018,55(7):62-65. Chen Kebin,Qiu Xiaoyan,Shi Guangyao,Li Xingyu.Optimization of Hybrid Energy Storage Capacity Based on Moving Average and Wavelet Packet Decomposition[J].Electrical Measurement & Instrumentation,2018,55(7):62-65.
基于滑动平均与小波包分解的混合储能容量优化
Optimization of Hybrid Energy Storage Capacity Based on Moving Average and Wavelet Packet Decomposition
A hybrid energy storage consisting of battery and super-capacitor is adopted to smooth wind power fluctuation and improve grid-connected operation capability of wind power. According to the historical data of wind farm output, and considering the grid-connected power volatility standards, a moving average method is used to decompose the original wind power into grid-connected power and energy storage power. Then the energy storage power is decomposed by wavelet packet decomposition into low frequency components and high frequency components, which are respectively allocated to battery and super-capacitor. By analyzing battery life quantitative model, a capacity optimal allocation model using minimum energy storage annual cost as objective is established. Results show that the proposed method is effective and economically practical. It provides a theoretical basis for energy storage planning in wind farm.
