Tractive power supply system and track ice melting device

The invention discloses a tractive power supply system and track ice melting device. The tractive power supply system and track ice melting device comprises a plurality of direct-current ice melting devices, a plurality of contact track connecting lines, a plurality of walking track connecting lines and a plurality of parallel switches. One direct-current ice melting device, one contact track connecting line, one walking track connecting line and one diverter switch form one ice melting unit which is correspondingly arranged at a power substation of a vehicle section. Each contact track connecting line connects an upstream contact track and a downstream contact track at the corresponding power substation of the vehicle section in series, wherein the upstream contact track and the downstream contact track are connected with the corresponding direct-current ice melting device through the corresponding diverter switch in series to form a contact track circuit unit; in a similar way, a walking track circuit unit is formed. Each direct-current ice melting device is connected with the contact track circuit units and the walking track circuit units in a switched mode through the diverter switches so as to achieve alternate power supply. According to the tractive power supply system and track ice melting device, normal operation of a train is not affected, and the tractive power supply system and track ice melting device is applicable to ice coating processing of the train in operation.