摘要
为了促进多能耦合互补和实现可再生能源就地消纳,综合能源系统已成为多领域的研究热点.考虑到能源设备及网络的多样性、复杂性以及多种能源时间尺度的差异性,根据能量平衡原理,对系统内具有可调特性的源、网、荷进行储能化建模,并构成虚拟储能系统参与到综合能源系统的优化调度中.为了准确把握虚拟储能的研究重点,首先介绍了虚拟储能的定义、逻辑架构和技术内涵;其次针对综合能源系统源、网、荷端设备或网络,总结和归纳了 4 种虚拟储能建模方法和特性指标;然后重点分析了虚拟储能在4 种典型场景的具体应用;最后展望了虚拟储能未来的发展方向.
Abstract
In order to facilitate the complementary coupling of various forms of energy and achieve local consumption of renewable energy,integrated energy system(IES)has become a research hotspot across multiple disciplines.Considering the diversity and complexity of energy devices and networks,as well as the disparity in energy time scales,the source,grid and load with adjustable characteristics within the system are modeled as storage elements using energy balance principles,and a virtual energy storage system is constructed with them,which is incorporated into the optimization and scheduling of the IES.To accurately grasp the research focus of virtual energy storage,this paper firstly introduces the definition,logical structure and technical connotation of virtual energy storage,and summarizes four virtual energy storage modeling methods and characteristic indexes for the equipment or network on the source,grid and load side of integrated energy system,and then emphatically analyzes the specific application of virtual energy storage in four typical scenarios,and finally looks ahead to the future development direction of virtual energy storage.