A Novel Approach to Investigate the Core Vibration in Power Transformers

作者：Zhang, Bo^*; Yan, Ning; Du, Jianmin; Han, Fangxu; Wang, Huan

来源：IEEE Transactions on Magnetics, 2018, 54(11): 8400804.

DOI：10.1109/TMAG.2018.2839722

• Core vibration
• damping coefficient
• magnetic structural coupling
• power transformers

The vibration and noise are a serious problem for large power transformers. The core vibration, as the noise source, is very important to calculate accurately. For the transformers with tanks, vibration calculation is very complicated, considering the complicated propagation path of vibration in the tank and the transformer oil. This paper provides a novel approach to investigate the core vibration of the DFP-270 000/500 type super high-voltage generator transformer. Based on the vibration acoustic coupling calculation, the damping coefficient of the core vibration of the transformer is obtained, and the magnetic structural coupling analysis is used for the vibration of the transformer core. To validate the feasibility and applicability of the proposed method, the numerical results obtained from the proposed method are compared with those of experimental ones.

• 出版日期2018-11
• 单位沈阳工程学院; 沈阳工业大学