A Medium Voltage Network Planning Method Considering the Probability of Distributed Generation and Flexible Load Rate Constraints

A novel method considering the probability of DG and load (distributed generation) characteristics and flexible load rate constraints is proposed to balance reliability and economy in distribution system network planning. Firstly, a method for calculating the number of outgoing lines in substations is proposed, taking into account the probability of DG and load and the constraints of flexible load rate. Secondly, a network planning model is established, which comprehensively considers reliability and economy. Then, the optimal solution is selected by comparing the network planning schemes corresponding to the number of lines in each group. Finally, the effectiveness of the proposed method is verified through a test system.