Abstract
There is a major disadvantage in the widely used modified Agrawal model to evaluate the overvoltages on the overhead transmission lines, i.e., one has to carry out a complete calculation for all the overvoltages on all the lines in the system even if one is only interested in the overvoltages on a certain line of the multi-lines system. In the present paper, we propose a decoupling method to overcome this demerit of the modified Agrawal model. The proposed method removes the intercoupling effects of lines by introducing an equivalent impedance in the field-to-transmission line coupling equations. Thus the overvoltages of one certain line can be evaluated independently in the multi-lines system. It is shown by examples that the proposed method is valid and efficient when comparing with the modified Agrawal method.
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Li, D., Wang, C., Liu, X. (2011). A Decoupling Method for Evaluating Lightning-Induced Overvoltages on One Certain Line of an Overhead Transmission Lines System. In: Ma, M. (eds) Communication Systems and Information Technology. Lecture Notes in Electrical Engineering, vol 100. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21762-3_122
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DOI: https://doi.org/10.1007/978-3-642-21762-3_122
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