摘要
针对无桥Boost PFC电路输入电流存在的三次谐波问题,提出一种在电压外环中引入数字陷波器和电流内环预测控制相结合的控制算法.该算法抑制了由直流母线二次纹波经电压环传导至输入侧形成的电流三次谐波,改善PI调节造成的电流过零点畸变,同时提高系统的稳态精度和动态响应速度.通过数字仿真和一台输出功率为1kW的无桥双Boost PFC实验样机,验证了所提控制算法的有效性.
In this paper,a novel control algorithm which combined the predictive controlled current loop with the notch filter modified voltage loop is presented to solve the harmonic pollution and dynamic response issues in bridgeless Boost PFC.The proposed scheme is adopted in the voltage loop to suppress the third harmonic of input current,and to refine the current distortion in the near-zero zone.In addition,the scheme features steady-state accuracy and fast dynamic response.Simulation and experimental results obtained from prototype demonstrate the superior performance of implemented strategy.
作者
曾星岚
林琼斌
苏先进
蔡逢煌
王武
ZENG Xinglan;LIN Qiongbin;SU Xianjin;CAI Fenghuang;WANG Wu(College of Electrical Engineering and Automation,Fuzhou University,Fuzhou,Fujian 350108,China;Fuzhou University-Kehua Hengsheng Power Electronics Research Insititution,Fuzhou,Fujian 350108,China)
出处
《福州大学学报（自然科学版）》
CAS
北大核心
2019年第3期333-339,共7页
Journal of Fuzhou University(Natural Science Edition)
基金
福建省自然科学基金资助项目(2016J05154)
福建省教育厅科研资助项目(JAT160067)
关键词
三次谐波抑制
无桥Boost
PFC
数字陷波器
快速动态响应
third-harmonic suppression
bridgeless boost power factor correction
notch filter
fast dynamic response
