现代电子技术2025，Vol.48Issue(14)：7-11,5.DOI:10.16652/j.issn.1004-373x.2025.14.002
基于坐标变化的Boost PFC无模型电流控制
Boost PFC model-free current control based on coordinate variation
杨学良 1洪应平 1杨松霖 1邓慧慧1
作者信息
- 1. 中北大学 电子测试技术国家重点实验室,山西 太原 030051
- 折叠
摘要
Abstract
Boost power factor correction(Boost PFC)exhibits intermittent conduction mode of inductor current during medium to light load operation.In the process of using a model-free current controller,the current controller cannot accurately track the dynamically changing current reference value due to the lag of the algebraic estimator,which ultimately leads to distortion and phase shift of the input current waveform.In order to improve the quality of the input current waveform,a model-free current controller based on the change of rotation coordinates is established based on the hyperlocal model and combined with the synchronous rotation coordinate system,so as to generate a suitable duty cycle signal and improve the tracking accuracy of the inductor current.The corresponding simulation and experimental environment is built to verify the rationality and effectiveness of the proposed control method,and to verify the correctness of the relevant theoretical analysis.The experimental results show that the proposed control method can effectively improve the tracking accuracy of the reference current,reduce the current harmonics of the converter system,and avoid the additional hardware detection circuit.关键词
无模型电流控制/功率因数校正/Boost PFC/坐标变化/超局部模型/同步旋转坐标系Key words
model-free current control/power factor correction/Boost PFC/coordinate change/hyperlocal model/synchronous rotating coordinate system分类
信息技术与安全科学引用本文复制引用
杨学良,洪应平,杨松霖,邓慧慧..基于坐标变化的Boost PFC无模型电流控制[J].现代电子技术,2025,48(14):7-11,5.
