Effect and Analysis of Magnetic Field and Thermal from Harmonic Characteristics for Transformers

• Main Authors: Jyun-Ming Su, 蘇俊銘
• Other Authors: 葉進純
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/959wxd

碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 97 === Nowadays, due to the face that the industry grows swiftly, lots of precise machines are used extensively. Among the components, the Transformer plays a pivotal role of electric transform and contact in electric system. Owing to the widespread use of the power electronics components, the input become nonlinear. However, it will make power supply polluted when city power generates Harmonic. Once Power system contains Harmonic, it will inevitably contribute to Transformer core loss well as iron loss. Meanwhile, it will also and make the temperature of core rises, bringing about the mistakes and inaccuracies of power equipment and instrument. This thesis analyzes the inner temperature of Transformers by adding different voltage source and different Harmonic voltage Signals. We use ANSYS to analyze and make a study of the interactions of with electromagnetic field and Thermal of inner Transformers. What we want to discuss is the difference between sinusoidal wave and Harmonic. This thesis can provide engineers some reference resources, benefiting the improving of functional efficiency and the prolonging lifespan of productions.