Influence of Excitation Capacitor Location to the Output of Low-Power Single-Phase Induction Generator.

Low-power single-phase induction generator is one type of generator that suitable for power generation in rural areas. Single-phase induction generator has two windings, the main winding and auxiliary winding. The main winding usually has a larger cross-sectional area, while the auxiliary winding has a smaller crosssectional area. In this paper, the effect of excitation capacitors connected to the main or auxiliary winding was investigated. The capacitors were used as an exciter for self-excited induction generator. The induction generator used in this investigation has been built using a machine originally designed as a motor. The specification of this motor is 220 volt, 1 HP, 50 Hz, and 6 poles. It was intended for low-power applications such as in rural electrification. The no-load test results showed that the higher voltage would be generated when the capacitors were connected to the main winding. The no-load voltage changed from 211.4 to 220 volt when the capacitors were connected to the main winding. The voltage of 156.4 to 159.7 volt would be generated when the generator was excited on auxiliary winding. When it was loaded, the voltage and frequency of induction generator decrease linearly. [ABSTRACT FROM AUTHOR]