摘要
传统的PFC控制策略中,输入电流质量与母线电压瞬态响应存在矛盾,因此设计电压环控制参数时只能将二者折中,不能同时取二者的最优指标.通过对PFC电压环和电流环平衡点的计算,可采用无差拍控制方式来消除二次电压纹波对PFC控制器的影响,实现对输入电流的精确控制.实验结果证明,该控制方法可行有效.
For the traditional PFC controller,a compromise is needed considering the contradiction of the input current quality and the transient response of the dc bus voltage in the design of voltage loop control parameters,which results in the non-optimal parameters of double loop PFC controller.The deadbeat control algorithm is designed based on the calculation of balanced power point of voltage loop and current loop at the steady state.The proposed control scheme can eliminate the second-order harmonics effectively and realize the accurate control of input current.The feasibility of the proposed scheme is verified by experimental results.
作者
郭晓瑞
周鑫
王燕锋
GUO Xiaorui;ZHOU Xin;WANG Yanfeng(School of Engineering, Huzhou University, Huzhou 313000, China)
出处
《湖州师范学院学报》
2020年第4期64-68,共5页
Journal of Huzhou University
基金
湖州师范学院校级科研项目(2018XJKJ35)
湖州市公益性应用研究项目(2019GZ02).
关键词
功率因数校正
无差拍控制
谐波畸变
power factor correction
deadbeat control
harmonic distortion
