Pairs of unidirectionally magnetic rotor/stator assemblies are mounted for synchronous rotation and complementary, so that one creates pulsating positive current flow and the other creates pulsating negative current flow, as the rotor and stator in each assembly are rotated with respect to each other. The pulsating positive current flow and pulsating negative current flow are combined at a desired phase angle to create alternating current, without power loss due to reversal of current flow.

A power generation device includes a push member configured to move back and forth in a first pushing direction and a second pushing direction to push a rotating body to move between a first stable attitude and a second stable attitude, an operation member configured to move in a first direction and a second direction, and a switching spring member arranged between the operation member and the push member. The switching spring member is configured to urge the push member in the first pushing direction to cause the rotating body to move toward the second stable attitude when the operation member moves in the first direction, and the switching spring member is configured to urge the push member in the second pushing direction to cause the rotating body to move toward the first stable attitude when the operation member moves in the second direction.

A power generation device includes a push member configured to move back and forth in a first pushing direction and a second pushing direction to push a rotating body to move between a first stable attitude and a second stable attitude, an operation member configured to move in a first direction and a second direction, and a switching spring member arranged between the operation member and the push member. The switching spring member is configured to urge the push member in the first pushing direction to cause the rotating body to move toward the second stable attitude when the operation member moves in the first direction, and the switching spring member is configured to urge the push member in the second pushing direction to cause the rotating body to move toward the first stable attitude when the operation member moves in the second direction.

A hybrid induction machine includes a stator with an input winding, a plurality of output windings with output ports, and a rotor connected to a flywheel operating as a reserve of kinetic energy to buffer surges in demand for electrical power due to large, pulsed loads with high repetition rates. Degradation of power quality at the output ports of the hybrid induction machine due to electrical noise on a main bus providing electrical power to the hybrid induction machine and other apparatus can be eliminated through the use of feed-forward harmonic cancellation signals, galvanic and magnetic isolation of the output ports, and damper networks.