Dynamic Hosting Capacity Evaluation of DGs in Active Distribution Network

With the rapid development of renewable energy generation, how to determine the maximum hosting capacity of the active distribution network has become a research hotspot to promote the efficient utilization of distributed generation. Firstly, this paper establishes a multi-level hosting capacity evaluation indicators system. Secondly, an evaluation model of hosting capacity based on the optimal power flow is established, which considers constraints arising from active management measures. Finally, an improved IEEE 33-bus distribution system is used to assess the hosting capacity of active distribution network with high-permeability distributed generation, and the weak factors of typical regional grids are analyzed based on the calculation results of evaluation indicators.