Analysis of Renewable Energy Consumption Ability of Distribution Network

Distributed generator (DG) has been widely integrated into distribution networks (DN) recently, which refers to a solution to the energy crisis and environmental pollution. However, the output of DG has a strong uncertainty, which may lead to the reverse power flow and voltage violation. With the development of power electronic technology, the integration of fully-controlled devices have been brought opportunity for the improvement of the renewable energy consumption ability. In order to quantitative evaluate the renewable energy consumption ability of DN, a unified framework of quantifying renewable energy consumption ability is proposed in this paper. Firstly, the quantification method for renewable energy consumption ability is proposed, including objective function and operational constraints. The improvement of renewable energy consumption ability based on soft open point (SOP) is further discussed and the operation status of SOP are also considered in the framework. Finally, the modified IEEE 33 node system is used to verify the effectiveness of the proposed method. Results show that with the integration of SOP, the renewable energy consumption ability is effectively increased.