The double excitation winding DC motor of the invention uses a commutator to control the first excitation winding and the second excitation winding respectively. When the load of the motor changes, it is combined with an energy storage device to form an separately excited DC generator and a series excited DC motor respectively to convert excess energy in the system into electric energy that can be effectively utilized.
The energy storage device is arranged as a supercapacitor, and the supercapacitor is composed of a polymer Acetylene derivative/nanocellulosic multi-porous carbon fiber composite electrode material, organic solid electrolyte and organic diaphragm.
The invention adopts polyacetylene derivative/nanocellulosic multi-porous carbon fiber composite electrode material as the electrode material of the energy storage device, improves the conductivity, specific capacitance and cycle service life of the energy storage device, has excellent energy storage effect, prolonging the service life of the double excitation winding DC motor, and reduces the cost.