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Self-excited induction generator controlled by a VS-PWM bidirectional converter for rural applications

1999; Institute of Electrical and Electronics Engineers; Volume: 35; Issue: 4 Linguagem: Inglês

10.1109/28.777197

1939-9367

Enes Gonçalves Marra, José Antenor Pomílio,

Energy Load and Power Forecasting

This paper concerns an application of a three-phase cage induction machine (IM) as a self-excited generator connected to the AC side of a voltage-source PWM bidirectional inverter. The generator is supposed to be driven by a low-head unregulated shaft hydraulic turbine. The proposed system is intended to be applied in rural plants as a low-cost source of high-quality AC sinusoidal regulated voltage with constant frequency. Simulation results are obtained based on the /spl alpha//spl beta//spl gamma/ stationary reference frame model of the IM. The experimental results demonstrated that the system presents satisfactory behavior when feeding AC loads and during the startup of induction motors.