The Open Electrical & Electronic Engineering Journal

2014, 8 : 552-558
Published online 2014 December 31. DOI: 10.2174/1874129001408010552
Publisher ID: TOEEJ-8-552

Design and Analyze the Optimum Operating Point between Magnetic Flux Density and Vibration Noise of Transformer Cores

Lihua Zhu , Xin Zhang , Qingxin Yang and Xian Zhang
Binshuixi Road, Tianjin, Chain. Postcard: 300387.

ABSTRACT

Base on the magnetization and magnetostriction measurement, this paper proposed a generalized 3D finite element numerical model, which can be used to analyze electromagnetic vibration of laminated cores including electromagnetism and magnetostriction effects. And then the acoustic field around the transformer was analyzed and tested, the results showed the model and analysis method were feasible. The work is helpful to estimate vibration noise level and then optimized design, choose suitable silicon steel and size in the design stage, which can reduce product development cycle and test cost.

Keywords:

Operating point, magnetic flux density, vibration noise, acoustic field, magnetostriction.