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.
作者
颜宁
潘霄
张明理
马少华
厉伟
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)
出处
《电工技术学报》
EI
CSCD
北大核心
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)
关键词
多互联微电网
复合储能
滚动修正
日内调度
Multi-connected microgrids
hybrid energy storage
rolling correction
intra-day scheduling
