51 / 2020-02-21 09:48:41

Analysis of Pulse Transformer Using New Winding Method Based on Maxwell

Hard modulator; Pulse transformer; Ansoft Maxwell; Distribution parameters; Electro-magnetic field simulation

Power and Control Engineering > Power Electronics

The pulse transformer is often used in high-power pulse generator, and its property and reliability are
critical indexes to a pulse generator. In this paper, to design a
pulse transformer of the 40-kV hard modulator, by
customizing the high-performance magnetic core and using the
new winding method, the output power and insulation can be
better. The electromagnetic field distribution of the pulse
transformer with improved windings is simulated in the Ansoft
Maxwell software. These characteristic parameters of the pulse
transformer in the electrostatic field and eddy current field, as
well as the working state of the transient field are analyzed.
Compared with the classic winding method, the simulation
results show that the pulse transformer with improved
windings has a better improvement in safety and parasitic
parameters, and it has a better performance in rise/fall edge
and flat-top of pulse. Correspondingly, these simulation results
provide a reference for the subsequent optimization of the
transformer.