【摘要】 本文研究了将优化模拟电荷法应用于复杂电场计算中的困难,并提出了解决办法。文中采用了微商法来计算目标函数的梯度矢量,并导出相应公式,以克服用差商计算时的误差,从而使设计变量数及模拟电荷数大为提高。本文成功地计算了由329个模拟电荷所模拟的,含有710个设计变量的复杂三维电场。此外,还发展了一种新的变密度线段电荷,使场中电极表面上的电荷分布更为合理。 应用上述方法,计算了500kV电力变压器直接式引线的电场,并比较了不同形状的均压球电场,供设计应用。更多还原

【Abstract】 Difficulty encountered in evaluating complex electric field by optimized charge simulation method has been examined and overcome. The computational accuracy of gradient vector of objective function was improved by using differentiation formulae instead of by difference’s. Thus, The number of design variables and simulation charges could be greatly increased, as an example, a three dimensional electric field represented by 329 simulation charges with 710 design variables had been successfully evaluated. Moreover, in order to make the representation of charge distribution on electrode surfaces, more reson- , able, a new kind of simulation to line charge of varying density has been developed.The method developed was applied to calculate the electric field rounded the direct type lead wire of 500 kV power transformer and to compare the design of smoothing bushing collar construction.更多还原