Distributed PV Hosting Capacity Evaluation Method of Distribution Network Based on Double Layer Cooperative Optimization

The PV(photovoltaic) hosting capacity evaluation of distribution network is important. The further research that how to developed an efficient evaluation model is needed. In this paper, a distributed PV hosting capacity evaluation method of distribution network based on the double layer cooperative optimization is proposed. In the evaluation method, the hosting capacity evaluation of low voltage layer is carried out firstly. In this case, the evaluation objective is set as the PV power is absorbed by the local load maximum, to obtain the local evaluation result. Further, by the power cooperative dispatch, the hosting capacity evaluation of high voltage layer is carried out to generate the global evaluation result. At last, a test example is developed to verify the effectiveness of the proposed method.