Direct-current shore power supply system

The invention discloses a direct-current shore power supply system. The system comprises a phase-shifting transformer and a plurality of conversion modules, a primary side of the phase-shifting transformer is connected with a high-voltage alternating-current power grid power supply, a secondary side of the phase-shifting transformer is connected with the plurality of conversion modules, the system further comprises a controller, and the controller is used for carrying out wave generation control on the conversion modules according to required voltage. The output voltage of the direct-current shore power supply system can be adjusted according to needs so as to meet the multi-voltage-class application scene, and meanwhile, transmission is performed through the two direct-current cables, so that the transmission cost and the transmission loss of electric energy are reduced. 本申请公开了一种直流岸电电源系统。所述系统包括，一移相变压器、多个转换模组，所述移相变压器的原边与高压交流电网电源连接，所述移相变压器的副边与所述多个转换模组连接，所述系统还包括一控制器，所述控制器用于根据所需电压对所述转换模组进行发波控制。本申请中的直流岸电电源系统输出电压可