A novel stand-alone dual stator-winding induction generator with static excitation regulation

• Published in: IEEE transactions on energy conversion Vol. 20; no. 4; pp. 826 - 835
• Main Authors: Wang, D., Ma, W., Xiao, F., Zhang, B., Liu, D., Hu, A.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-12-2005; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: 12-phase bridge rectifier; AC capacitors; Bridge circuits; Distributed power generation; dual stator-winding induction generator; electric energy quality; electric power integration; high speed generation; Induction generators; Pulse width modulation; Pulsed power supplies; Rectifiers; Regulators; self-contained; Space vector pulse width modulation; stator voltage orientation; Stator windings; Voltage
• ISSN: 0885-8969; 1558-0059
• DOI: 10.1109/TEC.2005.853744

On the basis of the new idea of electric power integration, a novel stand-alone dual stator-winding induction generator (DWIG) system is built. In this generator, there are two sets of windings to be embedded in the stator slots. One, referred to as the 12-phase power winding, supplies power to the dc load via a 12-phase bridge rectifier, and the other, called the 3-phase excitation winding, is connected to a pulsewidth modulation (PWM) voltage source static excitation regulator (SER). A solid iron squirrel cage rotor is suitable for high speed generation. Experiments and simulations show the ac capacitors can reduce the inductance of rectifier loads and help to reduce the capacitance of the SER. A simple control methodology based on stator voltage orientation (SVO) is presented to regulate the output voltage of the 12-phase bridge rectifier in this paper. Moreover, the electric energy quality and the relative influence factors are studied by detailed experiments and analyses. The proposed system is especially suitable for self contained electrical systems, such as those found on electric vehicles, ships, and aircraft, where high performance and compact size are essential.