A Simple and Efficient Method to Calculate The Magnetic Field Generated By Power Transmission Lines In Real Situations

摘要

In the present work the available investigations on the calculation of the magnetic field produced by the current of the conductors of high voltage transmission lines are reviewed. Based on this review, a new simple and efficient method is developed to calculate said magnetic field considering the buckling of the conductors, as well as the change of trajectory of the line. For this purpose, the conductors are modeled as a set of horizontal segments that follow the path of the transmission line. The magnetic field is calculated in a very simple way by applying the Biot-Savart Law to each segment and, subsequently, the superposition principle. This method was applied in many configurations of real transmission lines found in different papers, resulting a good approximation of the rigorous analysis and, at the same time, more accurate than the approximate method found in the literature. The development of the algorithm proposed by the present method is simpler than those available and requires less computational time to obtain the same results.