An Optimal Heat Line Simulation Method to Calculate the Steady-Stage Temperature and Ampacity of Buried Cables

作者：Liang, Yongchun^*; Zhao, Jing; Du, Yun; Zhang, Jianhua

来源：Przeglad Elektrotechniczny, 2012, 88(3B): 156-160.

• Optimal heat line simulation method
• genetic algorithm
• buried power cables
• steady-state temperature
• ampacity

A numerical study based on an optimal heat line simulation method is proposed to calculate the steady-state temperature distribution of underground power cables surrounded by sand backfill and soil. Virtual heat lines are used to replace the heat in the cable conductors in this method. The heat and location of these virtual heat lines are determined by solving Laplace's and Poisson's equations with boundary conditions satisfied based on the genetic algorithm. An experiment was carried out to verify the validity of the proposed method. Through comparison with the experimental results, the proposed model is proved to be effective to calculate the temperature distribution of buried power cables. Furthermore, the ampacity of buried power cables is calculated by iteration method.

• 出版日期2012
• 单位河北科技大学