Abstract:Aiming at the problem of transformer vibration in DC biasing operation, the relationship between excitation characteristics and vibration is studied. The electromagnetic coupling state equation of transformer in DC biasing operation is established. Then, the dynamic inductance and time-domain current are calculated based on the energy disturbance principle. On this basis, the identification method of exciting current is studied to present the excitation saturation state. The excitationvibration harmonic respon… Show more
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