Computer Simulation of a Three-phase Brushless Self-Exciting Synchronous Generator

|Computer simulation of the operating characteristics of a three-phase brushless synchronous generator with self-exciter is presented. A voltage driven nonlinear time-periodic FEA is utilized to compute accurately the magnetic eld distribution and the induced voltages and currents simultaneously. A method for numerical modeling of the diodes is also discussed. First, the computation procedure is brie y addressed, followed by the comparison between computed results and the experimental ones. The agreement between results is very good verifying the computational approach. Index terms| Electromagnetic transient analysis, rotating machine nonlinear analysis, brushless rotating machines, synchronous generator transient analysis, diode, nite element methods.