| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotating-electric machine which can be operated with high efficiency by controlling the quantity of cooling air necessarily and sufficiently while keeping the soundness by settling the maximum temperature of the rotating-electric machine within a limit value. SOLUTION: This rotating-electric machine has a stator where armature winding is wound on a core, a rotor which is arranged rotatably in the concentric position on the inner diametrical side of the above stator, and a cooling air ventilating means which can adjust the quantity of air. Further, the machine is equipped with a means which measures the ambient temperature; and a means which detects any or plural of armature voltage, an armature current, and a field current. It computes the temperature calculated value within the rotating-electric machine by the measurement of the above ambient temperature, the detected value of the above detection means, and the command of the quantity of cooling air; and decides a new cooling air quantity command by the computation of the temperature within the rotating-electric machine. COPYRIGHT: (C)2008,JPO&INPIT
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