电工技术学报2009，Vol.24Issue(8)：34-38,5.
地下电缆群暂态温度场和短时载流量数值计算方法
Numerical Method to Calculate the Transient Temperature Field and Short-Term Ampacity of Underground Cable System
摘要
Abstract
Finite difference method (FDM) is used to divide the transient temperature calculation process of underground cable systems into discrete groups of transient time step, and finite element method (FEM) is used to calculate each time step-temperature distribution of underground cable systems, and the transient temperature distribution of underground cable systems is calculated. Based on the calculation of the transient temperature distribution, short-term ampacity of underground cable systems is calculated by Newton iteration method. The result of test and calculation show that the method with FEM and FDM is an effective method to calculate the transient temperature field and short-term ampacity of underground cables in engineering.关键词
有限差分/地下电缆群/暂态温度场/有限元法/短时载流量Key words
FDM/ underground cable system/ transient temperature field/ FEM/ short-term ampacity分类
信息技术与安全科学引用本文复制引用
梁永春,李彦明,李延沐,王正刚,李忠魁..地下电缆群暂态温度场和短时载流量数值计算方法[J].电工技术学报,2009,24(8):34-38,5.基金项目
河北省自然科学基金资助项目(E2009000719). （E2009000719）
