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作者在论述牵引变电所实现三相一单相对称变换基础上,提出全线贯通同相供电的新型供电系统。与现行供电系统相比,它具有剩余负序低、电压损失小、功率损失小、通信干扰能自行削弱、多机牵引的重载(组合)列车在全线可不降弓通过等优点。为开行重载列车提供了便利条件,并且可以提高电气化铁道的运营效益。
Based on the discussion of three-phase and one-phase symmetrical transformation of traction substation, the author proposes a new type of power supply system with full-phase common-mode power supply. Compared with the current power supply system, it has the advantages of low residual negative sequence, small voltage loss, small power loss, communication interference can be weakened by itself, heavy-duty (combined) trains with multiple tractors can not drop across the board. It provides convenient conditions for operating heavy-haul trains and can improve the operational efficiency of electrified railway.