Research of the Amorphous Alloy Transformer with Runway Shape Winding Based on the Magnetic-Vibration-Noise Coupling Calculation Method

摘要

The amorphous alloy transformer has less no-load current and loss, but the structure characteristics of the runway shape winding make it show greater vibration intensity and noise at the load condition. Based on the structure characteristics of the amorphous alloy transformer with runway shape winding, a leakage-stress-acoustic coupled calculation model is proposed to calculate the electromagnetic force-vibration displacement-noise of the load winding. It also researches the vibration characteristics of the amorphous alloy transformer with runway shape winding and analyzes the influence factors of winding vibration noise. The accuracy of the model is verified by building test system and comparing with the calculated results.