基于PFC电路的定频模型预测控制方法  

The Predictive Control Method of Fixed-frequency Model Based on PFC Circuit

作　　者：洪乙铭 卢志钢 蔡振辉 郭梦灵 庄敬清 章进鋆 HONG Yi-ming;LU Zhi-gang;CAI Zhen-hui;GUO Meng-ling;ZHUANG Jing-qing;ZHANG Jin-yun(Shishi Power Supply Bureau of Fujian Power Grid,Shishi 362700,China)

机构地区：[1]国网石狮市供电公司,福建石狮362700

出　　处：《电气开关》2022年第5期21-23,27,共4页Electric Switchgear

摘　　要：本文提出了一种具有固定开关频率的模型预测电流控制(MPCC)策略,针对双升压型无桥功率因数校正(PFC)转换器进行控制。改进的MPCC策略解决了传统MPCC引起的滤波器设计和高电磁干扰(EMI)的问题,该改进策略具有很强的鲁棒性。仿真结果表明,所提出的模型预测控制策略具有开关频率固定,电流波形良好的优点,适用于PFC电路控制。In this paper,a model predictive current control(MPCC)strategy with a fixed switching frequency to control the dual boost bridgeless power factor corrected(PFC)converter is proposed.The improved MPCC strategy solves the problem of filter design and the high electromagnetic interference(EMI)which caused by the traditional MPCC.With the consideration of a nonlinear inductor,a formula is fitted to represent the change of the inductance,and the improved strategy has strong robustness.The simulation shows that circuits has a great advantage of making a fixed-frequency and a good quality of current with the proposed control strategy.

关 键 词：改进型MPC控制 PFC电路 定频控制 

分 类 号：TM13[电气工程—电工理论与新技术]