Abstract
Brushless doubly-fed alternator (BDFA) has good application prospects in pulsed alternator. It works through the rotor’s pole pairs transformation function to get excitation indirectly. Since there are no brush and slip ring, BDFA is expected to have high reliability and long service life. This paper studies on the excitation control of BDFA in pulse capacitor charge power supply system. A mathematic model of BDFA is established. The power angle characteristic of BDFA and flux changing condition during discharging process is analyzed with this model. Based on the analysis, a novel excitation control theory is proposed. Simulation results are presented to illustrate the performance of this control strategy.
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