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机构地区:[1]合肥工业大学电气与自动化工程学院,安徽合肥230009
出 处:《合肥工业大学学报(自然科学版)》2012年第10期1330-1334,1432,共6页Journal of Hefei University of Technology:Natural Science
摘 要:文章采用三维有限元方法分析计算了几类同轴电缆、多股导线同轴电缆以及偏心电缆的三维磁场和电感参数;采用有限元商用软件包ANSYS,基于磁场能量法计算得到几种不同形状的同轴电缆、多股导线同轴电缆以及偏心电缆在不同参数下的单位长度自感参数;基于能量摄动法计算得到同轴电缆在不同参数下的单位长度自感参数和单位长度互感参数,并进一步分析得出电感参数变化规律。有限元法与解析方法计算结果的一致性验证了有限元法计算的正确性。该方法简单易行,且计算精度很高,可用于计算规则或不规则形状的同轴电缆以及偏心电缆等各类电缆的电感参数。The 3-D magnetic field and inductance parameters are calculated by three-dimensional finite element method for some types of coaxial, multi-strand coaxial and eccentric cable. Using a commer- cial finite element software packet ANSYS, based on a magnetic field energy method, the per-unit- length self-inductance parameters of several different shapes of the coaxial, multi-strand coaxial and eccentric cable are calculated in terms of different parameters. Based on an energy perturbation meth- od, the per-unit-length self inductance and mutual inductance parameters of the coaxial cable are cal- culated in terms of different parameters. Besides, the changing trends of the per-unit-length induct- ance are obtained. The calculated results by the finite element method are in accordance with that by the analytical method for coaxial cable, thereby verifying the validity of the finite element method. The presented method has high precision and is convenient for calculating the inductance parameters of coaxial and eccentric cable with regular or irregular shape.
关 键 词:同轴电缆 偏心电缆 磁场能量法 能量摄动法 电感 三维有限元
分 类 号:TM153.2[电气工程—电工理论与新技术]
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