基于小波变换的混合储能二次调频容量优化配置方法研究

A Study on the Optimal Capacity Configuration Method for Secondary Frequency Regulation of Hybrid Energy Storage Based on Wavelet Transform

中文关键词:混合储能  二次调频  小波变换  容量配置  经济效益

keywords:hybrid energy storage  secondary frequency regula-tion  wavelet transform  capacity configuration  economic benefits

中文摘要:立足于保证混合储能辅助火电机组二次调频的安全稳定运行并提高其经济性，提出了一种基于小波变换的混合储能二次调频容量分配方法。首先，建立了包含火电机组、电池储能、压缩空气储能的混合储能二次调频系统模型；其次，提出了一种基于小波变换的混合储能二次调频容量配置方法，对电池储能以及压缩空气储能进行了功率分配与容量配置；最后，引入成本效益模型及评价指标，综合分析了混合储能优化配置的经济效益与调频效果，在仿真软件中搭建了混合储能二次调频仿真模型，验证了所提方法的有效性。

Abstract:To ensure safe and stable secondary frequency regulation operation in thermal power units assisted by hybrid energy storage systems while boosting economic efficiency， this paper proposes a wavelet transform-based method for secondary frequency regulation optimal capacity allocation. First， a hybrid energy storage secondary frequency regulation system model integrating thermal power units， battery energy storage， and compressed air energy storage is established. Second， the wavelet transform-based approach for optimally configuring secondary frequency regulation capacity is proposed， encompassing both power allocation and capacity configuration for battery and compressed air energy storage. Finally， a comprehensive cost-benefit model and evaluation indices are introduced to analyze the economic benefits and frequency regulation performance of the hybrid energy storage optimal configuration. A simulation model for hybrid energy storage secondary frequency regulation is built in simulation software to validate the method’s effectiveness.