Methods, apparatus and systems provide a rotary three-phase to two-phase converter. The converter may receive three phase electrical power in windings of a three phase induction motor. The motor may have a rotor and induction windings with three connections in parallel in a delta wiring configuration. Two of the connectors may be connected in parallel to a two phase load. In the various embodiments, switches may be controlled to optionally disconnect the load from the rotary converter. In various embodiments, the induction motor rotor may be free rotating, coupled to fly wheel or mechanically connected to a mechanical load.