Dual voltage integrated power and attitude control system and method

An integrated power and attitude control system, comprising:

• a gimbal frame;
• an energy storage flywheel rotationally mounted in the gimbal frame;
• a main controller coupled to receive at least a torque command signal and a power command signal and operable, in response thereto, to supply (i) a gimbal angular velocity command based at least in part on the torque command signal and (ii) a flywheel acceleration command based at least in part on the torque command signal and the power command signal;
• one or more actuators coupled to receive the gimbal angular velocity command from the controller and operable, in response thereto, to move the gimbal frame at the commanded angular velocity;
• a first power bus configured to supply one or more loads rated to operate at a first voltage magnitude;
• a second power bus configured to supply one or more loads rated to operate at a second voltage magnitude that is greater than the first voltage magnitude;
• a motor/generator coupled to the energy storage flywheel and including at least first stator windings and second stator windings coupled to the first power bus and the second power bus, respectively, the motor/generator configured to operate in either (i) a motor mode, whereby electrical energy from the first power bus, the second power bus, or both power buses, is converted to rotational kinetic energy and supplied to the energy storage flywheel or (ii) a generate mode, whereby rotational kinetic energy from the energy storage flywheel is converted to electrical energy and supplied to the first power bus, the second power bus, or both power buses;
• and
• a motor/generator controller coupled to receive the flywheel acceleration command and operable, in response thereto, to control operation of the motor/generator in either the motor mode or the generate mode, to thereby selectively supply electrical power to, or draw electrical power from, the first power bus, the second power bus, or both power buses, to thereby accelerate the energy storage flywheel at the commanded flywheel acceleration.