| 摘要 |
The invention comprising a versatile AC dynamo-electric machine (10) comprising isolated dual stators (50 and 50B and 50C), each both concentrated windings (53C) energizable with singlephase AC, and main windings (53) and a single high inertia sleeve (75) and drive plate (74 and 74A) connected to a rotor shaft (70 - 73A). The sleeve contains independent electrical rotors (80 and 80A), one for each stator. Each rotor has an innermost layer (82) of magnetizable permanent magnetic material in which the concentrated coils in the stator produce a desired pattem of magnetic poles reacting with the rotating field of the main windings. The machine can function a) as a synchronous AC motor, or b) a constant frequency output dual AC generator or c) as an AC motorgenerator with long ride-through time. A UPS system (100) comprises the machine (10) in the motor-generator mode, with clutch means (124) to connect an engine (114) to the rotor shaft (73A) to start the engine. |
