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含混合储能的铁路10 kV配电网综合能源系统规划
肖斐, 吴命利, 何婷婷
北京交通大学 电气工程学院,北京 100044
摘要:
针对铁路10 kV配电网多类能源的用能需求,建立一种含混合储能的铁路配电网综合能源系统规划模型。设计铁路10 kV配电网区域综合能源系统架构;针对光伏出力波动平抑需求,提出一种基于经验模态分解的光伏出力高频分量提取方法,并联合典型日负荷数据生成考虑多类光伏高频分量平抑需求的场景集。在此基础上,以等值年总成本最低为目标、混合储能和综合能源系统的运行和功率平衡为约束,建立综合能源系统优化配置模型并利用混合整数线性规划算法求解该模型。最后,以我国北方某铁路10 kV配电网为例,分析验证了混合储能接入综合能源系统在平抑分布式能源出力波动、提升系统经济效益方面的有效性。
关键词:  铁路  配电网  综合能源系统  混合储能  光伏  经验模态分解  高频分量平抑  规划
DOI:10.16081/j.epae.202202004
分类号:TM715;TK01
基金项目:中央高校基本科研业务费专项资金资助项目(2020JBZD012)
Integrated energy system planning of railway 10 kV distribution network with hybrid energy storage
XIAO Fei, WU Mingli, HE Tingting
School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
Abstract:
Aiming at the energy demand of multiple types of energy for railway 10 kV distribution network, a planning model of integrated energy system for railway distribution network with hybrid energy storage is proposed. The architecture of regional integrated energy system for railway 10 kV distribution network is designed. In view of the demand of suppressing photovoltaic output fluctuation, a method used to extract the high frequency components of photovoltaic output based on empirical mode decomposition is proposed. And combined with the typical daily load data, the scene set considering various demands of suppressing the high frequency components of photovoltaic output is generated. On this basis, the optimal allocation model of integrated energy system is established taking the minimum of the equivalent annual total cost as the objective, with the operation and power balance of hybrid energy storage and integrated energy system as constraints. The mixed integer linear programming algorithm is used to solve this model. Finally, a railway 10 kV distribution network in North China is used as an example, the effectiveness of integrated energy system integrated with hybrid energy storage in suppressing the distributed energy output fluctuation and improving the system economic benefits is analyzed and verified.
Key words:  railway  distribution network  integrated energy system  hybrid energy storage  photovoltaic  empirical mode decomposition  high frequency component suppression  planning

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