基于风险量化的综合能源系统电储能事故备用容量优化利用研究  

Research on Optimal Utilization of Battery Energy Storage Emergency Reserve Capacity in Integrated Energy System Based on Risk Quantification

作　　者：刘志谱 李欣然[1] 刘小龙[1] 卢颖华 罗真 孙瑞 LIU Zhipu;LI Xinran;LIU Xiaolong;LU Yinghua;LUO Zhen;SUN Rui(College of Electrical and Information Engineering,Hunan University,Changsha 410082,Hunan Province,China;Sunwoda Electronic Co.,Ltd.,Shenzhen 518108,Guangdong Province,China)

机构地区：[1]湖南大学电气与信息工程学院,湖南省长沙市410082 [2]欣旺达电子股份有限公司,广东省深圳市518108

出　　处：《中国电机工程学报》2021年第8期2641-2650,共10页Proceedings of the CSEE

基　　金：国家重点研发计划项目(2017YFB0903403)。

摘　　要：针对综合能源系统(integrated energy system,IES)中储能事故备用容量优化利用问题,提出一种基于风险量化的经济优化调度模型。首先,构建某电池生产园区IES能量框架,并针对重要负荷建立其脱网后需求模型。然后,以脱网后切负荷损失与运行成本之和最小为目标,并结合综合考虑天气类型、负载率水平以及脱网类型的脱网概率构建脱网损失模型,将脱网风险进行量化,同时可求解出脱网后的最优负荷投切方案及最小损失。基于此,以并网期望收益与脱网期望损失之差最大为目标,构建基于风险量化的IES经济优化调度模型,以此优化利用储能事故备用容量,提高系统并网运行经济性,通过外层/内层粒子群算法进行求解,得出并网能源最优调度方案及对应的期望收益。最后,以夏季典型日为例进行仿真,验证所提方法的有效性。Aiming at the problem of optimal utilization of emergency reserve capacity in integrated energy system(IES),an economic optimal scheduling model based on risk quantification was proposed.Firstly,the energy framework of IES in a battery production park was constructed and the demand model after off-grid was established for the important load.Then,taking the minimum sum of load loss and operation cost after off-grid as the goal,combined with the comprehensive consideration of weather type,load rate level and off-grid probability,the off-grid loss model was constructed to quantify the off-grid risk,and at the same time,the optimal off-grid load switching scheme and minimum loss can be solved.Based on this,the economic optimal scheduling model of IES based on risk quantification was constructed to maximize the difference between the expected income of grid connection and the expected loss of off-grid,so as to optimize the utilization of emergency reserve capacity of energy storage and improve the economy of grid connection operation of the system.Through the outer/inner particle swarm optimization algorithm,the optimal scheduling scheme of energy and the corresponding expected income were obtained.Finally,a typical summer day was simulated to verify the effectiveness of the proposed method.

关 键 词：综合能源系统 风险量化 事故备用 优化利用 优化调度 

分 类 号：TM13[电气工程—电工理论与新技术]