A new analysis tool to evaluate the impact of lightning on distribution lines
A new analysis tool was developed to provide additional insight and mitigation options related to the impact of lightning on distribution systems. Lightning is the number one environmental cause of electric utility power interruptions all over the planet. In Brazil, about 40-50％ of the interruptions in the distribution systems is caused by lightning. The tool uses fault information, provided by the System Control and Data Acquisition (SCADA), and cloud-to-ground (CG) lightning information, provided by the Brazilian lightning detection network. It integrates them into the geographical information system (GIS) software “Small World, which should previously contain the information about the distribution system, so that a real time analysis can be done to determine if a fault was caused by lightning. Both SCADA and lightning information use time stamping based on the Global Positioning System (GPS). Considering that, in the majority of the cases, the disturbances on distribution systems are caused by lightning occurring near the lines and not directly over the lines, the tool also calculates for each flash an area of influence, in which the effect of the lightning on the distribution system is believed to be significant. The calculation of this area is based on the Rusk model of lightning induced voltage and, also, it takes into account the ellipse error associated with the location of the lightning flash. Examples are presented of the application of the tool in the analysis of faults in the distribution system of the Bandeirante Energias do Brasil Company, located in the Southeastern region of Brazil.
O. Pinto Jr. V. L. G. Gardiman M. Martino
Atmospheric Electricity Group – ELATBrazilian Institute of Space Research (INPE), S.J. Campos, SP, 1 Bandeirante Energias do Brazil Edinfor/Logica CMG
国际会议
第13届国际大气电学会议(The 13th International Conference on Atmospheric Electricity)
北京
英文
2007-08-13（万方平台首次上网日期，不代表论文的发表时间）