We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Digitalized Control Algorithm of Bridgeless Totem-Pole PFC with a Simple Control Structure Based on the Phase Angle.
- Authors
Lee, Gi-Young; Park, Hae-Chan; Ji, Min-Woo; Kim, Rae-Young
- Abstract
Compared to the conventional boost power factor correction (PFC) converter, a totem-pole bridgeless PFC has high efficiency because it does not have an input diode rectifier stage, but a current spike may occur when the polarity of the grid voltage changes. This paper proposes a digital control algorithm for bridgeless totem-pole PFC with a simple control structure based on the phase angle of grid voltage. The proposed algorithm has a PI-based double-loop control structure and performs DC-link voltage and input inductor current control. Rectifying switches operate based on the proposed rectification algorithm using phase angle information calculated through a single-phase phase-locked loop (PLL) to prevent current spikes. The feed-forward duty ratio value is calculated according to the polarity of the grid voltage and added to the double-loop controller to perform appropriate power factor control. The performance and feasibility of the proposed control algorithm are verified through a 3 kW hardware prototype.
- Subjects
ELECTRIC current rectifiers; ELECTRONIC paper; PHASE-locked loops; ALGORITHMS; ANGLES; VOLTAGE
- Publication
Electronics (2079-9292), 2023, Vol 12, Issue 21, p4449
- ISSN
2079-9292
- Publication type
Article
- DOI
10.3390/electronics12214449