2017, Volume 12, Issue 3
Frontiers of Mechanical Engineering >> 2017, Volume 12, Issue 3 doi: 10.1007/s11465-017-0439-9
Equivalent circuit and characteristic simulation of a brushless electrically excited synchronous wind power generator
School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China
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Abstract
A brushless electrically excited synchronous generator (BEESG) with a hybrid rotor is a novel electrically excited synchronous generator. The BEESG proposed in this paper is composed of a conventional stator with two different sets of windings with different pole numbers, and a hybrid rotor with powerful coupling capacity. The pole number of the rotor is different from those of the stator windings. Thus, an analysis method different from that applied to conventional generators should be applied to the BEESG. In view of this problem, the equivalent circuit and electromagnetic torque expression of the BEESG are derived on the basis of electromagnetic relation of the proposed generator. The generator is simulated and tested experimentally using the established equivalent circuit model. The experimental and simulation data are then analyzed and compared. Results show the validity of the equivalent circuit model.
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