基于柔性变电站的交直流配电网成套设计

System Design of AC and DC Distribution Network Based on Flexible Substation

近年来,配电网从当前形态向未来高级形态加速发展。在此趋势下,提出了基于柔性变电站的交直流配电网技术路线。该技术路线在科学研究、方案设计、设备制造和工程建设等方面都是首次开展,尚无成熟的设计经验及完备的理论体系支撑。该文首次系统给出了基于柔性变电站的交直流配电网的成套设计体系框架和方法流程,在系统方案、设备参数设计和控制保护等方面开展了深入的研究和论述。该文的研究成果已在首个基于柔性变电站的交直流电网示范工程成套设计中应用,并将为交直流配电网的推广应用提供理论支撑和方法指导。

In recent years,distribution network is developing rapidly from current to future advanced form.Under the tendency,this article puts forward a new AC and DC distribution network technology based on flexible substation.This technology is firstly launched in research,design,equipment manufacturing and engineering construction,etc.There is no mature design experience and complete theory.In this paper,system scheme and design method based on flexible substation are given systematically for the first time.And design of system scheme,parameters of key equipment,control and protection system are researched and discussed in depth.All of the research results above are adopted in the first demonstration project of AC and DC distribution network based on flexible substation for system design.The study results will provide theoretical and experimental experience for system design in the future AC and DC distribution network projects.