抄録
This paper proposes two types of new structures for the brushless self-excited single-phase synchronous generator. Both stator and rotor of generator are eqiupped with the concentrated windings. The rotor consists of field winding short-circuited with a diode. These generators are simple and robust, so that the generator can be easily producted. The voltage induced in the field winding by the reverse revolving field due to single-phase armature reaction is half-wave rectified. Then the self-excitation is achieved. The output voltage can be almost kept constant without AVR.
To investigate the characteristics of these generators, the fmite element method, by which the electromagnetic and electric circuit equations are solved directly, is applied. The generator is strictly simulated, taking into account of magnetic saturation and diode's interruption phenpmena. It is confirmed that the results of theoretical analysis agree well with the experimental results.
