A one-step finite element formulation for the modeling of singleand double-circuit transmission lines

摘要

A method is presented, by which a finite element method (FEM)nformulation is used for the direct computation of overhead transmissionnline series and sequence impedances. The method is applied in single andndouble circuit line configurations of arbitrary geometry, giving resultsnin perfect agreement with those available from classical calculationnmethods. The new method can easily handle cases of nonhomogenous and/ornirregular terrain, where classical methods may fail