Related languages, like English and Spanish, often have similar orthographies but use the same letters to represent different sounds. Learning a second language frequently involves learning additional letter-sound map...
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Grid transformer is the most important facility of power system transmission and transformation equipment, and also one of the electrical equipment with high accident rate. Detecting latent faults of transformers at a...
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This paper describes a generalized dynamic transformer circuit model that includes all types of core losses, nonlinear magnetic characteristics, skin effects of eddy currents in the core, and thermal effects on hyster...
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This paper describes a generalized dynamic transformer circuit model that includes all types of core losses, nonlinear magnetic characteristics, skin effects of eddy currents in the core, and thermal effects on hysteresis of core materials. A TLM-based transform with variable time steps is employed in the simulation. This model can provide an accurate prediction of transformer performance and core losses and is suitable for simulation of high frequency switching mode converters using transformer isolated outputs. Some interesting issues such as stray capacitance, are discussed. Simulations of a 500 W transformer in a full bridge inverter operated at 15 kHz and 25 kHz have been confirmed by experiments.
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