The extensive integration of numerous distributed generations(DG)makes the assessment of the hosting ca-pacity of new distribution networks crucial to safe operation of power systems.Thereby it is necessary to carry out a com-prehensive assessment of hosting capacity of DG-integrated new distribution networks and study appropriate enhancement strategies.First a new distribution networks'DG hosting capacity assessment model was established,and the second-order cone relaxation was adopted to accelerate model solution.Second a multi-dimensional and multi-layer real-time as-sessment system was established,and the comprehensive fuzzy assessment was used to obtain the comprehensive score of DG hosting capacity according to the indexes with dynamic weighting.Finally a DG hosting capacity enhancement strategy based on voltage constraints improvement was proposed.An arithmetic example was analyzed in the distribution network model of IEEE 33-node system,which proved the effectiveness of the enhancement strategy and the assessment system proposed in this paper by comparing the changes in DG hosting capacity and comprehensive assessment score with the con-ventional method.
new distribution networkdistributed generationhostingcapacitydynamic weightingcomprehensive fuzzy assessmentenhancement strategy
维普
万方数据
