Aiming at the problem of high line loss caused by neglecting the matching degree between different voltage and capac-ity distribution networks and large-scale distributed power sources,a planning method for large-scale distributed generation ac-cess to medium and low-voltage distribution network based on hierarchical zoning is designed.Based on large-scale distributed generation,the T access mode is selected.Based on the principle of hierarchical zoning,the medium and low-voltage distribu-tion network planning model which considers large-scale distributed generation is established.The model is established at the upper and lower levels,the constraint function is set,the quantum genetic algorithm is introduced,and the zoning planning re-sults of medium and low-voltage distribution network are updated repeatedly to obtain the optimal planning scheme.The exper-imental results show that after applying the designed planning method,the line loss of large-scale distributed generation con-nected to medium and low-voltage distribution network is less and the economic cost of operation is lower.
关键词
大规模分布式电源/线损/经济运行/分层分区
Key words
large-scale distributed power supply/line loss/economic operation/hierarchical zoning
维普
万方数据