| Abstract |
A new type of single-phase stand-alone induction generator using a three-phase induction machine and a single-phase voltage-source PWM inverter is introduced. The generator scheme is capable of producing constant load frequency with a very well regulated output voltage. A small lead acid battery and a single-phase full diode-bridge rectifier are used to feed the inverter. The inverter feeds one of the stator phases. During the generator voltage build up, the battery is supplied by the inverter first, and after a while, it is replaced by a diode-bridge rectifier which is fed by the generator. The system steady-state and dynamic equations are derived and solved to obtain the performance characteristics of the generator scheme. A digital simulation study is carried out for a 2.2KW three phase induction machine. The simulated results obtained confirm that an output power of about 0.6 p. u. can be achieved by this generator. |
