Title :
Transient temperature analysis and short-term ampacity calculation of power cables in tunnel using SUPG finite element method
Author_Institution :
Hebei Univ. of Sci. & Technol., Shijiazhuang, China
Abstract :
In this paper, transient temperature distribution and short-term ampacity of underground power cables that were placed in tunnel were calculated. Using finite difference method (FDM), transient temperature calculation process of underground cables in tunnel was divided into discrete groups of transient time step. A Streamline-upwind/Petrov-Galerkin (SUPG) stabilized finite element method was used to solve the air governing formulations and each time step-temperature distribution of underground cables in tunnel. The transient temperature distribution of underground cables in ducts was calculated. Short-term ampacity of underground cables was calculated by Newton-Raphson iteration method.
Keywords :
Galerkin method; Newton-Raphson method; electric conduits; finite difference methods; finite element analysis; power cables; thermal analysis; tunnels; underground cables; FDM; Newton-Raphson iteration method; SUPG finite element method; finite difference method; short term ampacity calculation; stabilized finite element method; streamline upwind Petrov-Galerkin method; transient temperature analysis; tunnel; underground power cable; Cable shielding; Conductors; Finite element analysis; Heating; Power cables; Steady-state; Transient analysis; Finite Difference Method; Finite Element Method; SUPG Stabilized Formulation; Short-term Ampacity; Transient Temperature Field; Tunnel;
Conference_Titel :
Industry Applications Society Annual Meeting, 2013 IEEE
Conference_Location :
Lake Buena Vista, FL
DOI :
10.1109/IAS.2013.6682608
