Finite element based transformer operational model for dynamic simulations
Conference
Mohammed, OA, Liu, Z, Liu, S et al. (2005). Finite element based transformer operational model for dynamic simulations
. 496-500. 10.2529/piers050408135103
Mohammed, OA, Liu, Z, Liu, S et al. (2005). Finite element based transformer operational model for dynamic simulations
. 496-500. 10.2529/piers050408135103
The transformer model proposed in this paper considers the effects of the excitation levels as well as the periodic fluctuations of ac excitation on the winding self and mutual inductances during dynamic operation. The inductance profile is obtained from sequential FE solutions covering a complete ac cycle at various excitation levels. The values are then used by table-look-up technique. The technical details, the creation of the inductance tables as well as the Simulink implementation, are explained. Simulation results show that the established model is capable of restoring the nonlinear magnetization phenomena of transformer iron core. The significance of this model is due to its accuracy and its applicability for dynamic simulation of interconnected components in a power system.
