基于多元储能的光储微网电-热协同存储策略研究  

Research on power-to-heat collaborative storage strategy of photovoltaic and energy-storage microgrid based on multi-energy storage

作　　者：刘奥 吴迪[1,2] 龚弟鑫 于世洋 韩中合 李桂强[3] Liu Ao;Wu Di;Gong Dixin;Yu Shiyang;Han Zhonghe;Li Guiqiang(North China Electric Power University,Baoding;Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology,Baoding;University of Science and Technology of China,Hefei)

机构地区：[1]华北电力大学,保定 [2]河北省低碳高效发电技术重点实验室,保定 [3]中国科学技术大学,合肥

出　　处：《暖通空调》2024年第11期131-139,共9页Heating Ventilating & Air Conditioning

基　　金：国家重点研发计划项目(编号:2022YFE0117200);河北省自然科学基金项目(编号:E2023502040);国家自然科学基金项目(编号:52206247);河北省自然科学基金项目(编号:E2022502017);安徽省自然科学基金项目(编号:2108085UD03);中央高校基本科研业务费专项资金项目(编号:2022MS089);北京市自然科学基金项目(编号:3224069)。

摘　　要：为了提高光储微网的经济性及运行可靠性,提出了一种基于多元储能系统的电-热协同存储策略。首先,建立了多元储能系统运行模型,并通过变分模态分解将多元储能系统需承担的功率进行了分解;进而依据各储能设备的响应特性将分解后得到的分量进行了重构,并采用电-热协同存储策略来确定各储能设备的出力计划与容量配置;最后,基于各储能设备的运行状态,引入模糊控制算法对储能设备的分配功率指令进行了实时修正。结果表明:本文所提出的策略使储能系统年化成本下降了约14.98%,节省了约66.05万元,并提高了系统的长期平抑波动能力与电-热协同存储的协调能力。To improve the economy and operation reliability of the photovoltaic and energy-storage microgrid,a power-to-heat collaborative storage strategy based on a multi-energy storage system is proposed.Firstly,the operation model of the multi-energy storage system is established,and the power required by the multi-energy storage system is decomposed by the variational mode decomposition.Then,the decomposed components are reconstructed according to the response characteristics of each energy storage device,and the output plan and capacity configuration of each energy storage device are determined by using the power-to-heat collaborative storage strategy.Finally,according to the operation state of each energy storage device,the fuzzy control algorithm is introduced to correct the distribution power command of the energy storage devices in real time.The results show that the strategy proposed in this paper reduces the annual cost of the energy storage system by about 14.98%,saves about 660500 yuan,and improves the long-term fluctuation suppression ability of the system and the coordination ability of the power-to-heat collaborative storage.

关 键 词：多元储能 光储微网 电-热协同存储策略 变分模态分解 模糊控制 荷电状态 

分 类 号：TM615[电气工程—电力系统及自动化]