Double-source electric control device for locomotive

The utility model relates to a double-source electric control device for a locomotive, comprising the locomotive, a traction transformer, a traction storage battery set, an integrated traction current transformer and a three-phase alternating-current asynchronous traction motor which are electrically connected with each other. An input end of the traction transformer is connected with a 25kV contact line, an output end of the traction transformer is connected with the integrated traction current transformer, and an output end of the integrated traction current transformer is connected with the three-phase alternating-current asynchronous traction motor, a central control unit and a traction mode changeover switch. A power source of the double-source electric control device is the contact line or storage batteries which are clean energy sources, thereby meeting requirements of people in terms of energy conservation, environmental protection and low carbon. The double-source electric control device integrates functions of a traction inverter, an auxiliary inverter and a traction storage battery charging and discharging circuit, and is high in integration level and fine in integral modularized structure.