功率因数校正电路大信号分析

Large Signal Analysis for Power Factor Correction Circuits

本文从ＰＦＣ电路特点入手，建立了用于大信号分析的ＴＬ域稳态近似模型，并依此对闭环系统的Ｌｙａｐｕｍｏｖ稳定性进行分析，得出为保证大范围渐近稳定性的恰当反馈函数．依据Ｔ＿Ｌ域准稳态近似模型的计算机模拟与实验结果吻合，验证了模型的正确性．

A kind of large signal model for power factor correction,TL domain quasi-stationary model,is presented in this paper. Based on the model,the close loop system's Lyapunov stability is analyzed. The global asymptotic stability can be reached with correctly selection of feedback function. Simulations of the system based on the model are provided with experimental results for verification.