摘要
本文提出一种计算涡流及磁场的新方法—全标量位有限元法。按照这种方法,所有的电流,不仅是外加电流而且包括涡流在内,都用电流片代替,这样对包括涡流区在内的全部场域都可用单一的标量磁位来描述。本法的优点是计算简单、节省机时和降低对计算机内存的要求。文中给出了刚度矩阵元素和方程式右项的修正格式。文中所举超导发电机转子屏蔽系统涡流问题的实例计算结果表明本法具有良好的计算精确性。
This paper presents a new finite element approach using a single scalar magnetic potential for the analysis of the eddy currents and the magnetic fields. According to this approach all the currents including both the driving currents and the eddy currents are substituted by some current sheets, thus a single scalar magnetic potential can be used as describing iunction for all regions. This approach has the advantage of simplicity and saving the required volume of the computer memory and the computing time.In this paper the detailed formulas for modifying the stiffness matrix Coefficients and the right items are given, and a computation example is presented, which show that the accuracy of the present method is satisfactory.
出处
《中国电机工程学报》
EI
1987年第2期-,共8页
Proceedings of the CSEE
