基于模糊控制的改进型功率因数校正电路研究  

Research on Improved Power Factor Correction Circuit Based on Fuzzy Control

作　　者：高晨程 洪应平[1] 卜韩 张会新[1] GAO Chencheng;HONG Yingping;BU Han;ZHANG Huixin(Key Laboratory of Micro/nano Devices and Systems,Ministry of Education,North University of China,Taiyuan 030051)

机构地区：[1]中北大学微纳器件与系统教育部重点实验室,太原030051

出　　处：《舰船电子工程》2025年第3期186-191,共6页Ship Electronic Engineering

摘　　要：功率因数校正电路通常采用双环PI控制,其存在输出电压动态响应性能差以及输入电流畸变大的问题。针对此类问题,设计了一种电流环占空比补偿、电压环模糊控制的功率因数校正电路。针对电流畸变的问题,设计了带占空比补偿的PFC电路;为了进一步提高输出电压的稳定性,减小超调,在此基础上将外环采用模糊PI控制。最后利用Matlab/Simulink进行仿真模型搭建,结果表明,改进后的PFC电路的输入电流的总谐波畸变率减小,并且输出电压超调减小,使电网供电质量得到提高,降低了谐波污染。The power factor correction circuit usually adopts double loop PI control,which has the problems of poor dynamic response performance of output voltage and large distortion of input current.Aiming at such problems,a power factor correction circuit with current loop duty cycle compensation and voltage loop fuzzy control is designed.Aiming at the problem of current distortion,a PFC circuit with duty cycle compensation is designed.In order to further improve the stability of the output voltage and reduce overshoot,the outer loop is controlled by fuzzy PI control.Finally,the simulation model is built by Matlab/Simulink.The simulation results show that the total harmonic distortion rate of the input current of the improved PFC circuit is reduced,and the output voltage overshoot is reduced,which improves the power supply quality of the power grid and reduces the harmonic pollution.

关 键 词：模糊PI控制 占空比补偿 功率因数校正 MATLAB/SIMULINK 

分 类 号：TM714.1[电气工程—电力系统及自动化]