Mobile hybrid electric power system

A system comprising:

• a prime mover configured to rotate a shaft;
• and
• a wound rotor induction generator (WRIG) comprising:
• a rotor coupled to the shaft of the prime mover and configured to rotate when the shaft rotates, the rotor comprising a rotor winding;
• a first stator winding electrically connected to a utility source and a load;
• and
• a second stator winding electrically connected to an energy storage bank;
• wherein:
• when the first stator winding receives first power from the utility source, the WRIG is configured to transform at least one of a voltage and a frequency of the first power before outputting at least a portion of the first power to the load;
• and
• when the first stator winding does not receive the first power from the utility source, the WRIG is configured to generate second power through the second stator winding due to kinetic energy of the rotor, and output at least a portion of the second power to the load.

A device comprising:

• a rotor configured to be coupled to a shaft of a prime mover and rotated when the shaft rotates, the rotor comprising a rotor winding;
• and
• at least one stator winding configured to be electrically connected to a utility source and a load;
• wherein:
• when the at least one stator winding receives first power from the utility source, the device is configured to transform at least one of a voltage and a frequency of the first power before outputting at least a portion of the first power to the load;
• and
• when the at least one stator winding does not receive the first power from the utility source, the device is configured to generate second power due to kinetic energy of the rotor and output at least a portion of the second power to the load.