抄録
A new single-phase capacitor self-excited induction generator with self-regulating features is presented. It is suitable for use as a portable power source with a power rating of several kilowatts driven by a constant-speed prime mover such as oil engine. The new generator employs a squirrel cage three-phase induction machine, and a single-phase load is connected externally across the three-phase terminals of the stator winding through series and parallel capacitors. The series and parallel capacitors provide self-regulating and self-exciting features. The voltage regulation of the generator accompanying the load variation is very small due to the effects of the capacitors in both resistive and inductive load conditions. Additionally, since a Y-connected stator winding is used, the waveform of the output voltage becomes a sinusoidal wave.
In this paper the system configuration and the operating principle of the new generator are explained, and the basic characteristics are also investigated by means of a simple analysis and detailed experimental results with a laboratory machine.
