| 摘要 |
An electric machine 100 has a primary mechanical output or input and a plurality of electric sub-machine rotors 102 each having an output or input shaft 104 and a plurality of electric sub-machine stator magnets proximate the rotors. A drive train 110, 120 connects each of the output or input shafts of the plurality of electric sub-machine rotors to simultaneously drive, or be driven by, the primary output shaft 150. Each sub-Âmachine is selectively engaged or disengage depending on a monitored parameter indicative of the power of the machine. The rotor of each sub-machine may be selectively mechanically disengaged from the mechanical input or output, and each rotor may be connected to the input or output shaft by a clutch. Alternatively the sub-machine may be selectively electrically disengaged. The machine may be a motor, generator or combined motor/generator. Possible applications may be in vertical axis wind turbines (VAWT), pumps, plant machinery or vehicles. |
