Research Status and Prospects of Distribution Network Reconstruction Technology Based on DC Link Interconnection
With the context of"carbon peaking and carbon neutrality",a large number of distributed power sources and power electronic devices are connected to the power grid,which complicates the network structure and requires the search for a better distribution network reconstruction scheme.In order to meet the controllable demand for DC link interconnection distribution network,so that the grid topology and system operation is closely coupled,and then realize the flexible operation of the group network is the focus of research at this stage.Firstly,the AC/DC hybrid distribution network based on the DC link interconnection is analyzed.Then,several commonly used distribution network objective functions and constraints considering optimized operation and failure recovery are further discussed,and their applications in the DC link interconnection distribution network reconstruction are explored from three aspects:classic algorithms,heuristic algorithms,and other algorithms.A series of challenges and technical requirements faced by the reconstruction of distribution network based on the DC link interconnection in optimized operation and failure recovery are summarized.Finally,the future direction of development for the reconstruction of distribution network based on DC link interconnection is envisioned and recommendations are given.
DC link interconnectionAC/DC hybrid distribution networkdistribution network reconstructionoptimize operationfault recovery