极高渗透率分布式光储场景下主配协同系统优化调控:基于复杂系统理论的研究框架OA

With massive amounts of photovoltaics(PV)connected to the distribution grid,the operational flexibility of the system has been significantly enhanced,yet the complexity of its optimal scheduling and control has also increased dramatically.Coordinated operation between transmission and distribution(T&D)systems can effectively alleviate issues such as voltage violations and line overloading in distribution networks.However,coordinated optimization and control of T&D systems face critical challenges,including high-dimensional nonlinear models,multi-source uncertainty disturbances,and high computational complexity in large-scale optimization.To address these challenges,this paper focuses on the scenario of extremely high penetration of distributed PV-storage systems.First,the morphological characteristics of T&D coordination under extremely high penetration of PV-storage systems are analyzed.Then,the current research progress in three key technical areas,i.e.coordinated T&D power flow calculation and optimization,optimal scheduling and coordinated control,is systematically reviewed,and three key difficulties faced by optimal scheduling and coordinated control of integrated T&D systems in such scenarios are identified.Finally,considering that power networks inherently exhibit the properties of complex systems,complex system theory is introduced to reveal the key regulatory factors and overall dynamic characteristics of integrated T&D systems.On this basis,a research framework for optimal scheduling and coordinated control of integrated T&D systems is proposed based on complex system theory.The proposed framework is expected to enhance the optimal scheduling and coordinated control performance of integrated T&D systems under extremely high penetration of distributed PV-storage,providing theoretical support and methodological reference for the high-quality development of the new dispatch system.