Distributed PV Hosting Capacity Robust Assessment of AC/DC Hybrid Distribution Network Considering Demand Response
Robust optimization usually uses a polyhedron model to describe the uncertainty of distributed photovoltaic(PV)output,but ignores the spatial-temporal correlation of distributed PV output.Therefore,this paper established a spa-tial-temporal correlation polyhedron model of distributed PV,and proposed a robust assessment method of distributed PV hosting capacity of AC/DC hybrid distribution network considering demand response.First of all,the spatial-temporal correlation polyhedron model of the uncertainty of distributed photovoltaic output and the demand response model of electricity price incentive are established.With the goal of maximizing the grid-connected capacity of distributed PV ca-pacity,various operation constraints and regulation strategies in the AC/DC hybrid distribution network are taken into account,a two-stage robust assessment model for the distributed PV hosting capacity of the AC/DC hybrid distribution network is established,and the column and constraint generation algorithm is used for iterative solution.The effectiveness of the algorithm is verified on a 70-bus system,and the simulation results indicate that different management strategies can help improve the distributed photovoltaic carrying capacity of AC/DC hybrid distribution networks.
万方数据
维普
