Research On Three-Phase PFC Technique Based On One-Cycle-Control

The attention devoted to reducing harmonic pollution and the quality of the current absorbed from the utility line by electronic equipment is increasing. Good correction technology is a hot spot in power electronic fields.Based on referring to lots of literatures, the paper summarizes the current research situation of Three-Phase High-Power-Factor (HPF) rectification circuit and analyses the classification and the virtues and defects of correction technology for active power factor.On the labor basis, the paper studies Three-Phase Power-Factor-Correction (PFC) technologies with One-Cycle Control (OCC). Firstly, theoretic analysis of One-Cycle Control is carried out. Theory and qualities are of One-Cycle Control are discussed. For analysis of control characteristics of DC/DC circuit based on OCC and designing controller, the paper deduces Small Signal Model in illustration of Buck circuit. And then controller can be designed in frequency-domain.On basis of research on OCC, the paper applies technology of OCC in Three-Phase PWM HPF rectifier. With theoretical analyses the paper deduces the new control laws of Three-Phase voltage source PWM rectifier based on OCC. It does not require multipliers and Three-Phase voltage sensors,which are used in manyother control approaches. Then the paper deduces Small Signal Model of the system by applying Tellegen's theorem and presents the approach of designing the circuit.The paper presents the approach of obtaining the simulation model of syetem in illustration of Three-Phase PWM HPF rectifier.