1 results about "Length wave" patented technology

This application discloses a method, system, and medium for locating faults at both ends of a transmission line based on the temperature variation characteristics of the transmission line. It belongs to the field of fault location technology for power system transmission lines. The method includes: acquiring the real-time temperature of the transmission line, fixed design parameters, and the arrival time of the fault traveling wave at both ends; determining the corrected line length based on the fixed design parameters and real-time temperature, according to the thermal expansion and contraction relationship of the conductor; determining the inductance and capacitance per unit length based on the real-time temperature and transmission line theory, and determining the corrected traveling wave velocity based on the relationship between wave velocity and distributed parameters; and determining the distance to the fault point based on the principle of two-end traveling wave location, according to the corrected line length, wave velocity, and arrival time of the traveling wave. By implementing this application, the problem of mismatch between the location parameters and the actual physical state caused by parameter fixation in the traditional two-end traveling wave location method can be solved, thus improving the accuracy of fault location.