摘要
对于平均电流控制下的PFCBoost变换器,根据其工作基本原理,推导了其离散迭代映射数学模型。基于该数学模型,通过数字仿真确定了存在于变换器中的快时标不稳定现象。通过对系统数学模型的详细分析,与PFC变换器的Simulink精确开关模型仿真结果相比较,得到了一致结论,从而证明了该变换器离散数学模型的正确性,为PFC变换器参数设计提供了理论依据。
According to the operation theory of Power Factor Correction (PFC) Boost Converter, the discrete time map was derived for the average current control PFC Boost Converter. Based on this mathematical model, the fast-scale instability was discovered in PFC Boost Converter with Acc. The consistent conclusion was determined with detail analysis to mathematical model of system and compared with the result form the Simulink exact switching model for PFC Converter. The theory guide to the parameter design for PFC Converter is available based on the correctness of discrete time map for PFC Converters.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2008年第12期3297-3300,3304,共5页
Journal of System Simulation