Abstract
Aiming at the characteristics of electrified railway in mountain zone, this paper proposes all-parallel DN power supply mode (all-parallel direct power supply mode with return line) to solve the power supply of mixed passenger and freight traffic railway line with the speed of 200 km/h or higher by combining load characteristics and economy of project operation investment. Then, respectively from the angles of current ampacity capacity, electrical energy consumption and voltage loss, the power supply capability of all-parallel DN power supply mode in montanic electrified railway was analyzed. Finally, the conclusion that power supply capability of all-parallel DN supply mode is stronger than separated DN supply mode and terminal parallel DN supply mode was proved.
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