摘要
可再生能源发电和新型储能系统接入电网后使得N 1重构路径的选择更为复杂,为解决此背景下智能电网转供能力的计算问题,在对二者时变运行特性分析的基础上,提出基于智能电网转供能力指标体系的N 1恢复模型,通过对转供能力指标计算公式线性化处理,并结合基于拓扑模型简化的人工智能(artificial intelligence,AI)优化算法,利用优化调整电网、可再生能源发电、新型储能系统的运行方式,实现电网N 1后转供能力最大。最后,以某实际典型电网为例,分析可再生能源发电和新型储能系统接入电网对提升系统应对N 1故障能力和实现负荷有效转移的作用,验证了转供能力指标对于定量描述智能电网自愈特性的有效性。
The integration of renewable energy resources and storage systems makes power delivery route reconstruction after the N-1 fault taking place more complicated. To solve the calculation problem of smart grid power transfer capability, the time-varying characteristics of renewable energy resources and storage systems were analyzed. Based on this, an N-1 recoverymodel was proposed on the base of the transfer capability index. Through making the calculation formula of the transfer capability index linear and adopting the artificial intelligence （AI） optimal algorithm based on topology simplification, the operation modes of the power grid, new energy generations and new energy storage systems can be optimized and the maximum power transfer capability of the grid can be achieved. Finally, taking an actual typical network as an example, the significant role of interconnection of renewable energy resources and energy storage devices for the improvement of N-1 recovery ability and the transfer of loads was analyzed. The power transfer capability index in quantitatively describing the self-healing feature was proved to be effective.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2012年第16期9-16,共8页
Proceedings of the CSEE
基金
国家重点基础研究发展计划项目(973项目)(2009CB219703)
国家高技术研究发展计划(863计划)(2012AA050212)
上海市科技攻关重点项目(10dz1202800)~~
关键词
智能电网
可再生能源发电
储能系统
转供能力
拓扑简化
smart grid
renewable energy resources
energy storage systems
transfer capability
topologysimplification
