基于复合储能的多互联微电网日内调度研究  

Research on Intra-Day Dispatch of Multi-Connected Microgrids Based on Hybrid Energy Storage

作　　者：颜宁[1] 潘霄 张明理 马少华[1] 厉伟[1] 张博 Yan Ning;Pan Xiao;Zhang Mingli;Ma Shaohua;Li Wei;Zhang Bo(School of Electrical Engineering Shenyang University of Technology Shenyang 110870 China;State Grid Liaoning Electric Power Company Limited Economic Research Institute Shenyang 110015 China)

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870 [2]国网辽宁省电力有限公司经济技术研究院,沈阳110015

出　　处：《电工技术学报》2018年第A02期577-585,共9页Transactions of China Electrotechnical Society

基　　金：国家电网科技资助项目(LNDL2018YF02)

摘　　要：储能系统是多互联微电网进行优化经济调度的重要单元,根据多互联微电网中储能系统需求不同,该文提出一种基于复合储能的多互联微电网日内滚动修正调度方法。首先,考虑分布式电源的不确定性对微电网经济调度决策的影响,提出基于复合储能的寿命衰退的SOC安全裕度调度方法,有效延长了储能系统运行寿命;其次,在建立储能系统校正分布式能源出力成本模型的基础上,加入容量配置不足的成本惩罚因子,提高了调度的准确性;最后,采用滚动调度方式有效地降低了整个多互联微电网的备用容量,实现了对一定范围内微电网调度的修正。Energy storage system is an important unit for the economic dispatch of multiconnected microgrids,according to the demand for energy storage systems in multi-connected microgrids,a rolling dispatch method of multi-connected microgrids based on hybrid energy storage is proposed.Firstly,the influence of the uncertainty of distributed power supply on the microgrid-level economic dispatch decision is considered,a SOC security margin constrained scheduling method based on life degradation model is also proposed,it effectively prolongs the operating life of the energy storage system;Secondly,a distributed energy output cost model of energy storage system is established,the cost penalty factor with insufficient capacity is also added to further improve the accuracy of scheduling;Finally,the rolling dispatch method is used to effectively regulate the reserve capacity of the entire multi-connected microgrids,the accuracy of multi-connected microgrids intra-day scheduling is more accurately improved.

关 键 词：多互联微电网 复合储能 滚动修正 日内调度 

分 类 号：TM734[电气工程—电力系统及自动化]