Fast Evaluation Method of Plug and Play Access Capacity for Distributed Generation in Distribution Network

This paper establishes a new mathematical model to analyze the penetration rate of distributed power in the distribution network. On the basis of considering the characteristics of the load interval of the distribution network, an optimization problem is adopted to establish a two-level programming mathematical model of the maximum access capacity of the distributed power supply to the distribution network considering the static safety constraints. The problem of solving two-level programming is turned into a problem of solving multiple single-level programming, and then a trust region sequence quadratic programming algorithm is proposed to solve the transformed single-level programming problem, and then the penetration rate of distributed power access to the distribution network. The simulation results show that the proposed algorithm can better solve the problem of the maximum access capacity of distributed power sources connected to the distribution network.