Study on Chaos Control in PFC Boost Converter Based on the Delay Feedback Control

• DOI: 10.62517/jike.202504102
• Publication Date: 2025-05-27T11:29:26Z
• Authors: Naihong Hu
• Keywords: Control of chaos; Feedback Control

In Power-Factor-Correction (PFC) Boost Converter, due to the wide fluctuations of voltage as power frequency is 50 HZ, fast-scale instability and chaotic phenomena are apt appear in circuits. The method commonly used weaken unstable introduce slope compensation. However, since design signals lacks theoretical basis, overcompensation surfaces from time time, which leads substantial drop input factors. According this situation, we delay feeback control stabilize periodic tracks attractors. Researches demonstrate that feedback compensation rage determined by four main circuit parameters ( switching cycle, voltage, output inductor) converter. Abundant conclusions simulation experiments testify proper range not only controls bifurcation phenomena, but also maintains higher factor.