Abstract
In this paper, an evaluation method of computational error for the electric field analysis by a surface charge method is proposed. In the method, an approximate equation of the smoothness of the electric field distribution is used to evaluate the computational error. In two-dimensional and axisymmetric problems, the approximate equation of the smoothness is expressed by the second derivative form of the surface charge density with respect to the distance along the surface. Furthermore, the smoothness is expanded to three-dimensional problems and a general form of the equation for the smoothness is obtained. The applicability of the proposed method is verified by computation results of a two-sphere model and a hyperboloid model. © 1998 Scripta Technica, Electr Eng Jpn, 126(1): 7–14, 1999
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