提高山区铁路直供方式供电能力的研究

摘要

带回流线的直接供电方式在普速铁路中广泛使用,也更适用于山区铁路.但山区长大坡度的特点,使其供电能力受到较大制约.在双线铁路供电臂中部增设并联点,通过与传统末端并联方式在载流能力、电压损失方面的比较,研究其对提高牵引供电能力的影响程度.%TRNF( direct feeding system with return cable) is widely used in ordinary-speed railway, and it is more suitable for mountain railway. Because of the long steep grade in mountain area, its supply capacity is restricted. This paper suggests that the parallel connection point should be added in the middle of the feeding section of double-track railway. Its effects on improving the capacity of traction power supply is studied by comparing with traditional parallel connection only at the end of the feeding section, from the aspects of capacity of current carrying and voltage loss .