Analysis on the Influence of the Distributed Photovoltaic on the Line Loss of Distribution System

[摘要] Based on the radiation single loop distribution network, a uniform distributed constant power load model is established. Based on the basic principle of loss, formula reasoning is carried out to calculate the influence of the location, penetration levels and power factor angle of photovoltaic on the line loss under different load distribution. Then, the line loss of a typical model of IEEE distribution network with distributed photovoltaic is simulated. Finally, the theoretical calculation of line loss of a typical line affected by photovoltaic mentioned in the background is carried out, confirming that the change of line loss rate of this line is caused by photovoltaic.

[发布机构] State Grid Jiangxi Electric Power Research Institute, Nanchang, China^1

[效力级别] 材料科学

[关键词] Basic principles;Constant power load;Distribution systems;Line loss rates;Load distributions;Penetration level;Power factor angle;Theoretical calculations