Research On Positioning Algorithm And Precision Of Lightning Location System

In recent years,the demand for electricity is growing,in order to cope with the needs of the country and society,higher level,a greater number of transmission lines built on the earth.Each voltage level of the transmission line constitutes the main grid of the grid.The power delivered to the distance.However,due to cost and other factors,most of the current transmission lines for the overhead bare wire,perennial exposure to external conditions,it is natural to increase the line failure rate.Through the transmission line in previous years,the cause of tripping accident analysis,lightning trip accounted for more than half.Light of the natural phenomenon of human beings can not be completely resolved,so quickly and accurately find the line lightning strike point,remove the fault,as soon as possible to restore power supply is our primary task.Lightning positioning system came into being.As the name implies,the system can quickly and accurately give the location of the lightning strike point.Through the analysis of the situation of the current lightning location system,the paper uses the positioning method commonly used in lightning location:direction,time difference method and comprehensive method.Several positioning algorithms are widely used in the field of lightning location:traditional iterative method,particle swarm optimization algorithm and fruit fly algorithm.Analysis of the characteristics of several algorithms.Finally,based on the better performance and wide control of the fruit fly,the improvement of the idea is carried out,and the performance simulation test is carried out to test the performance of the improved algorithm in terms of spatial search ability and the ability to break away from the local extreme value The The simulation results show that the improved algorithm has a certain improvement in performance compared with the original fruit fly algorithm.Finally,several common factors such as topography and geomorphology,soil characteristics,number and layout of the detection station are analyzed.This paper analyzes the positioning accuracy of the lightning locating system after improving the algorithm and considering the influencing factors by using the improved Drosophila algorithm and considering the influencing factors in the typical mountainous road lightning strike trip in Xiuyan,Liaoning Province.For the future engaged in or explore the field of lightning positioning to play a certain reference value.