Impacts on the Voltage Profile of DC Distribution Network with DG Access

[摘要] With the development of electronic, more and more distributed generations (DGs) access into grid and cause the research fever of direct current (DC) distribution network. Considering distributed generation (DG) location and capacity have great impacts on voltage profile, so use IEEE9 and IEEE33 typical circuit as examples, with DGs access in centralized and decentralized mode, to compare voltage profile in alternating and direct current (AC/DC) distribution network. Introducing the voltage change ratio as an evaluation index, so gets the general results on voltage profile of DC distributed network with DG access. Simulation shows that, in the premise of reasonable location and capacity, DC distribution network is more suitable for DG access.

[发布机构] China Power Engineering Consulting Investment Group Co. LTD, Beijing; 100011, China^1;North China Electric Power University, Beijing; 102206, China^2

[效力级别] 经济学

[关键词] DC distribution network;Direct current;Distributed generations (DGs);Distributed networks;Evaluation index;Reasonable location;Voltage change;Voltage profile