A Full-Period Generating Mode for Bearingless Switched Reluctance Generators

Aero-Power Sci-tech Center, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
IEEE Transactions on Applied Superconductivity (Impact Factor: 1.24). 07/2010; 20(3):1072 - 1076. DOI: 10.1109/TASC.2010.2041206
Source: IEEE Xplore


A bearingless switched reluctance generator (BSRG) is developed, which is operated in full-period generating mode. In the proposed 12/8 bearingless generator, two sets of windings are embedded in the stator. The coils of excitation winding wound on each stator pole are separately controlled, whereas the coils of generation winding are connected in series for each phase. To begin with, the voltage equations of the generator are built for the dynamic analysis model. Then, the mathematical model of radial force is derived for the control of the unbalanced magnetic force. Furthermore, a control algorithm is introduced to generate the required radial forces and output voltage. Finally, dynamic analysis results are included to verify the proposed analysis.

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    • "So far, there are mainly two kinds of methods to work it out. One is that the additional set of conditional windings is wound on the stator core with the main windings [5] [6] [7] [8]. It needs two sets of inverters to supply the currents to the torque-and suspension-winding respectively. "
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