Optimization technology and method of eddy current loss in transformer core

Eddy current loss is one of the important sources of energy loss in the transformer core, which directly affects the efficiency and operating cost of the transformer. The fundamental cause of eddy current loss is the resistance loss caused by the eddy currents induced by the internal conductors of the iron core, usually silicon steel sheets, in changing magnetic fields. Therefore, optimizing eddy current losses is a strong technical challenge in the transformer design and manufacturing process.
The optimization technology and methods of eddy current loss can mainly start from the following aspects:
Applications of thin silicon steel sheets:
Thin silicon steel sheets have lower conductor thickness and higher resistivity, which can significantly reduce the formation and propagation of eddy currents, so they are widely used in the design of high-efficiency transformers.
Research and application of materials with high saturation magnetic induction intensity:
High saturation magnetic induction intensity materials have higher saturation magnetic induction intensity and lower hysteresis loop area, which can accommodate more magnetic flux in a smaller volume, thereby reducing eddy current losses and improving the efficiency of the transformer.
Optimize the design and stacking of cores:
By optimizing the shape and stacking of the core, the flux path length and cross-over area between conductors can be reduced, thereby reducing eddy current losses.
Advanced manufacturing processes and technologies:
The introduction of advanced manufacturing processes and technologies, such as precise control of the thickness and stacking method of conductors, and the use of high-precision cutting and stacking equipment, can effectively optimize the core manufacturing process, thereby reducing the generation of eddy current losses.