Harmonic Injection Method for Single-Switch Three-Phase Boost Rectifier

• Main Authors: Su-Tz Lung, 蘇子龍
• Other Authors: Jiann-Fuh Chen
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/72052520649551461900

碩士 === 國立成功大學 === 電機工程學系碩博士班 === 91 === The single-switch three-phase boost rectifier is an attractive solution because of its simplicity, relatively good performance and high efficiency. However the single-switch three-phase boost rectifier can not be pushed to high power levels due to the fifth harmonics of the input current. An approach employing harmonics injection is proposed to reduce the fifth harmonics to meet the IEC61000-3-2 class A requirement without significantly increasing the rectifier voltage output. In this thesis, the injection principle is analyzed firstly. Then, the relationships of the maximum rectifier input power and voltage gain with different harmonics injection are developed. At least, experimental results are performed to prove the proposed scheme.