| 三维空间表面电荷法的改进 |
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| 引用本文： | 赵中原,邱毓昌,方志,王建生,冯建强.三维空间表面电荷法的改进[J].西安交通大学学报,2002,36(2):111-114. |
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| 作者姓名： | 赵中原 邱毓昌 方志 王建生 冯建强 |
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| 作者单位： | 1. 西安交通大学电气工程学院,西安,710049
2. 西安高压电器研究所 |
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| 基金项目： | 国家“十五”重大科技攻关资助项目 (980 5 0 2B) |
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| 摘 要： | 为了有效地求取电气设备的空间分布电容值，对三维空间表面电荷法进行了改进。利用曲面三角形单元取代平面单元，并用二次多项式对内部点,可以更好地模拟电力设备的结构，获得高的计算精度。给出了单元上的数值离散格式，并将均压环对地电容作为算例进行了计算。结果分析表明，计算值与测量值间的相对误差仅有2％，两者有很好的一致性。
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| 关 键 词： | 表面电荷法 曲面三角形单元 分布电容 电气设备 均压环对地电容 数值离散格式 |
| 文章编号： | 0253-987X(2002)02-0111-04 |
| 修稿时间： | 2001年7月29日 |
Improvement of the Three-Dimensional Surface Charge Simulation Method |
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| Zhao Zhongyuan ,Qiu Yuchang ,Fang Zhi ,Wang Jiansheng ,Feng Jianqiang.Improvement of the Three-Dimensional Surface Charge Simulation Method[J].Journal of Xi'an Jiaotong University,2002,36(2):111-114. |
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| Authors: | Zhao Zhongyuan Qiu Yuchang Fang Zhi Wang Jiansheng Feng Jianqiang |
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| Institution: | Zhao Zhongyuan 1,Qiu Yuchang 1,Fang Zhi 1,Wang Jiansheng 2,Feng Jianqiang 2 |
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| Abstract: | A three dimensional surface charge simulation method is improved for effective computation of stray capacitance of electric apparatus. In this method, each curved surface on which electric charges are distributed is divided into a number of curved surface elements instead of planar elements. The surface shape of each element is approximated by using a quadratic formula. The use of many curved surface elements provides a good approximation of the power equipment. As an example, the capacitance of a shielding ring against ground is calculated using this method. The computed capacitance values agree well with the measured data with relative error up to two percent. |
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| Keywords: | surface charge simulation method curved surface triangular element stray capacitance |
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