The Study On Middle Power Single-Phase PFC Standardization

As an important development trend in power electronics, Power Electronics System Integration (PESI) has received more and more attention in recent years. In this dissertation, the main content and objective of PESI is expounded firstly. Then the dissertation introduces harmonic pollution problem in power line and the method to reject it. Also the dissertation analyzes the research state of power factor correction.After this the paper studies the model of PFC circuit. The static analysis and the static operation point of circuit are described firstly. Dynamic analysis is finished based on the small-signal model of system. The paper summarizes the criteria to choose the parameter of the controller.The paper focus on the standardized topology of middle power level single-phase PFC. Detailed review, classification and comparison of single-phase PFC for middle power level application are also presented. Based on the analysis and comparison, a topology is selected as standardized topology.The paper also proposed a novel active-clamping Boost PFC converter, which include the principle of operation and analysis of theoretical. The experiment results show that the proposed method has remarkable merits. And it can be selected as candidate topology in application of power level less than 1500W.Power electronics system integrate technology is the one of the most great research direction in the following 10-20 years, and determine the rise and decline destiny of the power electronics and its industry. The standardization of circuit topologies is one of the research goals. The work has done in this thesis establishes certain foundation as further research of this direction.