Abstract
This paper investigates the fast-scale instability in a power-factor-correction (PFC) boost converter under a conventional average current-mode control. The converter is operated in continuous mode. Computer simulations and theoretical analysis are performed to study the effects of the time-varying input voltage under the variation of some chosen parameters on the qualitative behaviour of the system. It is found that fast-scale instability may occur during a line cycle, which can cause distortion to the line current and degrade the practical power factor. The results provide useful information for the design of PFC boost converters to avoid distortion due to fast-scale bifurcation.
| Original language | English |
|---|---|
| Pages (from-to) | 611-624 |
| Number of pages | 14 |
| Journal | International Journal of Circuit Theory and Applications |
| Volume | 31 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Nov 2003 |
Keywords
- Average current-mode control
- Bifurcation
- Fast-scale instability
- Power-factor-correction boost converter
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics