智能配电网的新形态及其灵活性特征分析与应用

Development and Characteristic Analysis of Flexibility in Smart Distribution Network

广泛接入的分布式电源、快速发展的电动汽车、大规模可控的用户侧资源等对配电网的灵活性提出了更高的要求。从智能配电网的发展形态分析入手,分析了智能配电网应具备的灵活性特征,阐述了灵活性需求及其多维属性特征,对智能配电网灵活性的可观、可控与量化分析等关键技术进行了初步探讨,并从提高灵活性角度对智能配电网规划、运行、控制等技术发展进行了展望。

Highly volatile distributed generators（DGs）,large scale electric vehicles and various controllable demand-side resources have increasingly been integrated into smart distribution networks.It puts forward a higher requirement for the flexibility of distribution networks to cope with the various uncertainties.Characteristics of the flexibility are analyzed from the point of view of the evolution of future distribution networks.The demand and multi-dimensional characteristics of distribution network flexibility are elaborated.The key technologies,including the observability,controllability and quantitative analysis of the flexibility,are discussed.Finally,apreview is performed from the perspective of flexibility for the future development of distribution network planning,operating and control technologies.