Patent ID: 6940259

Claim:
A generating device comprising: a magneto generator having a magnet rotor, and a stator having an m-phase armature coil (m is an integer equal to or more than 1) wound around an armature core with a magnetic pole portion facing a magnetic pole of said magnet rotor; an AC/DC conversion circuit having an AC/DC converter that converts an m-phase AC output voltage obtained from said magneto generator into a DC voltage to apply the DC voltage to voltage accumulation means, and an inverter that converts a voltage across said voltage accumulation means into an m-phase AC voltage to apply the AC voltage to said armature coil; and a controller that controls said inverter so as to apply an AC control voltage having the same frequency as an induced voltage of said armature coil to said armature coil from said voltage accumulation means via said inverter, and change a phase angle of said AC control voltage to control and bring an output of said magneto generator close to a target value, wherein said controller comprises: control characteristic determination means that determines that a control characteristic, in which the output of said magneto generator increases when the phase angle of said AC control voltage is changed to a delayed side relative to a present phase angle, and the output of said magneto generator decreases when the phase angle of said AC control voltage is changed to an advanced side relative to the present phase angle, is the normal control characteristic, and a control characteristic, in which the output of said magneto generator decreases when the phase angle of said AC control voltage is changed to the delayed side relative to the present phase angle, and the output of said magneto generator increases when the phase angle of said AC control voltage is changed to the advanced side relative to the present phase angle, is the reciprocal control characteristic, and determines whether the present control characteristic relative to the phase angle of said AC control voltage of the output of said magneto generator is said normal control characteristic or said reciprocal control characteristic; phase angle decision means that changes the phase angle of said AC control voltage in a direction of bringing the output of said magneto generator close to the target value depending on a determination result of said control characteristic determination means to decide a new phase angle of said AC control voltage; and inverter control means that controls said inverter so as to apply said AC control voltage having the phase angle decided by said phase angle decision means to said armature coil.