Study and Analysis of Dynamic Management Influence Factor in Current Carrying Capacity of Overhead Transmission Lines

Dynamic management in current-carry ing capacity of overhead transmission line is a significant application in smart grid. Dynamic management technology in current-carrying capacity is to establish measurement information relationship model of conductor temperature, ambient temperature, wind speed, wind direction, sunshine intensity etc parameters on basis of status monitoring of the line. The sensitivity of several factors such as ambient temperature, wind speed, sunshine intensity and parameters of the conductor on current-carrying capacity calculation of the overhead conductor is analyzed through calculation and the key factors affecting maximum current-carrying capacity is found out. The comparison between Specification in our country and calculation model of IEEE and boundary conditions has been studied.