基于两阶段风电波动平抑模型的混合储能系统容量配置及效果评价  

Capacity Allocation and Effect Evaluation of Hybrid Energy Storage System Based on Two-Stage Wind Power Fluctuation Smoothing Model

作　　者：朱明星 齐先军[2] 朱晟 张秀路 孙航 陈强[2] ZHU Mingxing;QI Xianjun;ZHU Sheng;ZHANG Xiulu;SUN Hang;CHEN Qiang(Bengbu Power Supply Company of State Grid Anhui Electric Power Co.,Ltd.,Bengbu,Anhui 233000,China;Anhui Provincial Key Laboratory of Renewable Energy Utilization and Energy Saving,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]国网安徽省电力有限公司蚌埠供电公司,安徽蚌埠233000 [2]新能源利用与节能安徽省重点实验室(合肥工业大学),合肥230009

出　　处：《南方电网技术》2025年第2期80-88,共9页Southern Power System Technology

基　　金：中央高校基本科研业务费专项资金资助项目(PA2020GDSK0099);国网安徽省电力有限公司科技项目(B312L023000N)。

摘　　要：针对风电场出力的波动性,提出了一种基于两阶段风电波动平抑模型的混合储能容量配置方法,并构建了用于评估储能配置效果的评价指标。首先建立风电波动平抑优化模型,获得平抑后风电功率序列和混合储能功率序列;其次对混合储能功率序列进行离散小波变换,根据储能配置成本最小原则并结合储能特点,将混合储能功率合理分配给锂电池和超级电容;然后进行多场景下的混合储能容量配置;最后构建储能配置效果评价指标。算例分析表明所提方法在实现波动平抑的前提下能避免并网风电量变化、提高对原始风电功率的跟随能力,储能配置效果评价指标验证了所提方法在混合储能容量配置方面的优越性。In view of the fluctuation of wind farm output,a method of capacity allocation of hybrid energy storage system(HESS)based on a two-stage wind power fluctuation smoothing model is proposed,and evaluation indexes for evaluating the energy storage allocation effect are constructed.Firstly,the optimization model of wind power fluctuation smoothing is established,and the wind power sequence and HESS power sequence after smoothing are obtained.Secondly,the discrete wavelet transform is performed on the HESS power sequence,which is reasonably allocated to lithium batteries and super capacitors according to the principle of minimum cost of energy storage allocation combined with the characteristics of energy storage.Then,the capacity allocation of HESS under multiple scenarios is carried out.Finally,the evaluation indexes of energy storage allocation effect are constructed.Through the analysis of examples,it is shown that the proposed method can avoid the change of grid-connected wind power energy and improve the ability to follow the original wind power under the premise of achieving fluctuation smoothing.The evaluation index of energy storage allocation effect verifies the superiority of the proposed method in the capacity allocation of HESS.

关 键 词：风电波动平抑优化 储能配置 混合储能 评价指标 

分 类 号：TM614[电气工程—电力系统及自动化]