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

• Published in: IEEE transactions on industry applications Vol. 35; no. 4; pp. 877 - 883
• Main Authors: Marra, E.G., Pomilio, J.A.
• Format: Journal Article
• Language: English
• Published: IEEE 01-07-1999
• Subjects: Bidirectional; Electric potential; Feeding; Frequency; Generators; Induction generators; Induction machines; Induction motors; Power generation; Pulse duration modulation; Pulse generation; Pulse inverters; Pulse modulation; Pulse width modulation converters; Pulse width modulation inverters; Rural; Voltage
• ISSN: 0093-9994; 1939-9367
• DOI: 10.1109/28.777197

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.