Abstract
The major purpose of this thesis to develop the paralleled technique of three-phase boost converters. The major contributions have four folds. First, to solve the low frequency oscillation problem of paralleled three-phase boost AC/DC converters. Second, using the feed-forward control to improve load regulation. Third, combing dead-band and interleave control method in order to reduce the switching loss and the ripple of input current and output voltage. Finally, a prototype is constructed and tested .Some experimental results are presented in the content.