摘要
该文采用一种新型非线性分析计算方法,对超导发电机转子中的励磁电流引线进行了传热计算。这是一种把理论分析和数值计算结合起来的计算方法。在这个计算方法中,首先考虑了稳态运行条件下励磁电流引线中实际的传热问题,进行理论分析,推导出变系数的稳态传热微分方程组;然后使用有限元素法原理,对该传热方程组进行离散化处理,得到常系数的稳态传热微分方程组,并求出其分析解;最后在微机上进行数值计算。 该文还介绍励磁电流引线的不同结构尺寸和不同运行工况下的传热计算结果,并分析它们对漏热的影响。
A new method with non-linear handling is used for calculating the heat transfer on current leads in the rotor of a superconducting generator. It combines an analysis with a numerical method.This paper describes the operational procedure of the new approach as follows: deriving the differential equations having variable coefficients for the heat transfer; discretizating them to obtain the one with constants by a finite element method(FEM); finding the analytic solution; making the numerical calculation in a IBM-computer.The paper presents the results as well at different sizes and operations of the leads studied, and discusses the effect of these conditions on the heat leakage.
出处
《低温与超导》
CAS
CSCD
北大核心
1991年第4期56-63,共8页
Cryogenics and Superconductivity
