Reliability Evaluation of Distribution Power Unit Based on DG Power Contribution

With a large number of distributed generations connected to the distribution network, how to quantify their impacts on power supply reliability has become a new research issue. In this paper, the contribution index of distributed generation is defined based on the load point and distribution unit, the two layers of distribution Network unit, and a new method of power supply reliability evaluation of distribution network unit is put forward. This method can quantify the effect of the distributed generation on the improvement of power supply reliability of the active distribution network. Finally, an example is given to verify the effectiveness and feasibility of the proposed method.