During the process of connecting photovoltaic power generation to the distribution network,there will be corresponding line losses.In order to prevent the impact of abnormal line losses on the operation of the low-voltage substation area,accurate detec-tion is needed.Therefore,this study proposes an abnormal detection technology for the feeder line loss rate of the low-voltage substa-tion area that considers photovoltaic connection.This method first analyzes the intensity of light and the factors that affect it,and based on this,models photovoltaic power generation.Then,Kirchhoff's current law is used to construct a distribution area model.Fi-nally,distributed photovoltaic power sources are connected to the balanced and unbalanced distribution areas,and their line losses are detected.The experimental results show that the proposed method has high efficiency,accuracy,and low false alarm rate in line loss detection,which is superior to the comparison method.The detection effect obtained is better and more suitable for daily line loss de-tection.
关键词
光伏接入/低压配电台/区馈线/线损率/异常检测
Key words
PV access/low voltage distribution station/area feeder/line loss rate/abnormal detection
维普
万方数据