电网技术Issue(11)：3081-3090,10.DOI:10.13335/j.1000-3673.pst.2014.11.021
不同时间尺度下基于混合储能调度的微网能量优化
Hybrid Energy Storage Scheduling Based Microgrid Energy Optimization Under Different Time Scales
摘要
Abstract
According to different features of energy-based energy storage and power-based energy storage in hybrid energy storage system an economic optimization model of microgrid, which corresponds with actual demand, is established. Based on different time scales the day-ahead and real-time scheduling strategies are proposed. Considering poor prediction accuracy of day-ahead scheduling, using chance constrained programming and taking satisfying the demand on reserve under a certain confidence level as reliability constraint and taking the minimum operation cost as the optimization objective and utilizing the difference of TOU price the optimal coordination of the output of micro energy sources and energy storage systems are performed. In allusion to power fluctuation brought about by such uncertain factors as wind turbine, photovoltaic generation and load, in real-time scheduling the first-order low-pass filtering algorithm is applied to smooth the power fluctuation, and the moving average filtering method is utilized to reasonably allocate the post-filtering fluctuating power among hybrid energy storage systems to make the battery energy storage system taking on more low-frequency power fluctuation and the supercapacitor taking on high-frequency power fluctuation. The real-time scheduling is carried out according to day-ahead plan to monitor operating states of all units in real time and to modify the deviation of day-ahead plan caused by the cumulation of power fluctuation in time.关键词
微网/日前调度/实时调度/机会约束规划/混合储能系统/低通滤波/滑动平均滤波Key words
microgrid/day-ahead scheduling/real-time scheduling/chance-constrained programming/hybrid energy storage system/low-pass filtering/moving average filtering分类
信息技术与安全科学引用本文复制引用
刘方,杨秀,时珊珊,张美霞,邓虹,郭鹏超..不同时间尺度下基于混合储能调度的微网能量优化[J].电网技术,2014,(11):3081-3090,10.基金项目
国家863高技术基金项目(2011AA05A106)；国家电网公司科技项目(H2013-042)；曙光计划(10SG51)；上海市科委重点科技攻关计划(11dz1210405)；上海市杨浦国家创新型试点城区建设和发展专项资金项目(2011YOCX03-006)。The National High Technology Research and Development of China 863 Program (2011AA05A106) （2011AA05A106）
Project Supported by Science and Technology Foundation of SGCC (H2013-042) （H2013-042）
