传统的高速磁浮列车采用双边并联供电模式，上下行线路各需要三台变流器，这种供电方式虽然可以减小馈线电缆上的损耗，增加供电系统的可靠性，但产生的输出电流受变流器容量本身的限制，从而导致牵引力和速度能力受限。为了解决上述问题，提出了一种高速磁浮双边串联供电的牵引力及速度提升方法，在不改变传统变流器输出能力和绝缘的情况下，将电机首尾分别接在双边变流器上，改变输出电压的相角，实现磁浮列车牵引力和速度能力的提升。最后，在Simulink中建立牵引供电系统模型，验证发现双边串联供电在最高速度时的电压小于双边并联供电的电压，其更有利于速度的提升。

Traditional high-speed maglev trains adopots a bilateral parallel power supply mode, which requires three converters for each of the upstream and downstream lines. Although this power supply method can reduce losses on the feeder cables and increase the reliability of the power supply system, the output current generated is limited by the converter capacity itself, resulting in limited tractive effort and speed capability. In order to solve the above problems, a high-speed maglev bilateral series power supply method was proposed to improve traction and speed. Without changing the output capacity and insulation of the conventional converter, the motor head and tail were connected to the bilateral converter separately, and the phase angle of the output voltage was changed to achieve the traction and speed capacity enhancement of maglev trains. Finally, the traction power supply system was established in Simulink, and it was verified that the voltage of the bilateral series power supply is smaller than that of the bilateral parallel power supply at the maximum speed, which is more conducive to the speed increase.

中国铁建科技重大专项（2019-A06）