전자기력에 의해 유도된 변압기의 진농 해석을 위한 자왜 현상 모델링 (Magnetostriction Modeling for the Analysis of Electromagnetically Induced Vibration of Transformers)

서지정보

· 발행기관 : 한국정밀공학회
· 수록지 정보 : 한국정밀공학회지 / 25권 / 1호 / 108 ~ 114페이지
· 저자명 : 유승열, 이준신, 이욱륜, 노명규

초록

Recently, there have been several instances that the nuclear power plants were shut down due to the mechanical faults in the main transformer of the plants. These mechanical faults are primarily originated from the electromagnetically induced mechanical vibrations. Magnetostriction is identified to be the main cause of the mechanical vibration after analyzing the vibration data of the main transformers in nuclear power plants. In this study, we derived a mathematical model of the magnetostriction based on the Jiles-Atherton hysteresis model. The validity of the model is checked by matching the simulations with the experimental observations. The magnetostriction model used in this study will be the first step toward developing a design tool for the transformers that have minimal mechanical vibrations and are robust to mechanical faults.

영어초록

Recently, there have been several instances that the nuclear power plants were shut down due to the mechanical faults in the main transformer of the plants. These mechanical faults are primarily originated from the electromagnetically induced mechanical vibrations. Magnetostriction is identified to be the main cause of the mechanical vibration after analyzing the vibration data of the main transformers in nuclear power plants. In this study, we derived a mathematical model of the magnetostriction based on the Jiles-Atherton hysteresis model. The validity of the model is checked by matching the simulations with the experimental observations. The magnetostriction model used in this study will be the first step toward developing a design tool for the transformers that have minimal mechanical vibrations and are robust to mechanical faults.

참고자료

· 없음