高比例分布式可再生能源交直流混合配电网运行调控:科学问题与技术框架

Operation regulation for high proportion of distributed renewable energy integrated hybrid AC&DC distribution network:scientific issues and technology framework

随着分布式可再生能源发电与中低压直流组网技术的快速发展,未来配电网必然向复杂的交直流混合形态演进,其运行调控技术面临许多新的挑战。在高比例分布式可再生能源交直流混合配电网(HR-HDN)运行调控技术发展需求分析的基础上,提炼出HR-HDN运行调控技术的3个科学问题,并以多类型可控设备协同、源-网-荷-储高度互动化和市场化需求为研究主线,从稳定控制、故障主动防御与恢复、电力市场机制辅助调控以及“平台+数据”数字化集成调控4个方面,提出了HR-HDN的运行调控技术框架。最后,对HR-HDN运行调控关键技术的未来发展进行了展望。

With the power generation of distributed renewable energy and the medium-and low-voltage DC networking technologies have been rapidly developed,the future distribution network will inevitably evolve into a complex hybrid AC&DC form,and its operation regulation technologies will face many new challenges.Based on the analysis of the development demand of operation regulation technologies for high proportion distributed renewable energy integrated hybrid AC&DC distribution network(HR-HDN),three scientific issues of operation regulation technologies for HR-HDN are extracted,which takes the cooperation of multiple types of controllable equipments,highly interactive and market-oriented demand of source-network-load-storage as the main line of research.In addition,the operation regulation technology framework of HR-HDN is proposed from four aspects of stability control,active fault prevention and recovery,auxiliary regulation of power market mechanism and“platform+data”digital integrated regulation.Finally,the future development of operation regulation key technologies for HR-HDN is prospected.