Title :
Adaptive approach to finite element modelling of corona fields
Author :
Adamiak, Kazimierz
Author_Institution :
Dept. of Electr. Eng., Univ. of Western Ontario, London, Ont., Canada
Abstract :
In the finite element modelling of corona fields, the area close to the corona electrode needs the finest discretization due to a significant difference in size and curvature of electrodes. User defined discretization may yield insufficient accuracy. In the approach presented in this paper, the domain is discretized adaptively according to the algorithm based on the information about the solution error. There are two advantages of such an approach: mesh generation is completely automatic; and the resultant mesh has the optimum density for assumed accuracy. This adaptive algorithm is demonstrated on an example of HVDC transmission line
Keywords :
DC power transmission; corona; electrodes; electrostatics; mesh generation; power transmission lines; transmission line theory; HVDC transmission line; accuracy; adaptive discretization; algorithm; corona electrode; corona fields; finite element modelling; mesh generation; Adaptive algorithm; Corona; Electrodes; Finite element methods; HVDC transmission; Industry Applications Society; Iterative algorithms; Mesh generation; Voltage; Wire;
Journal_Title :
Industry Applications, IEEE Transactions on
