舰船电子工程2026，Vol.46Issue(2)：98-103,6.DOI:10.3969/j.issn.1672-9730.2026.02.020
基于PI-模型预测控制的四相交错并联Buck变换器
Four-phase Staggered Parallel Buck Converter Based on PI-model Predictive Control
摘要
Abstract
Under the traditional model predictive control algorithm,the four-phase staggered Buck converter has a certain er-ror from the target set value at steady state.To address this issue,this design proposes a PI-model predictive control algorithm.First-ly,the virtual resistance-capacitance method is utilized to decouple the four-phase staggered parallel Buck converter into indepen-dent single-phase Buck converters,simplifying the modeling difficulty and model order of the four-phase staggered Buck converter.Secondly,the circuit of the single-phase Buck converter in CCM(continuous conduction mode)is modeled in discrete states,with the deviation between the actual voltage and current and the target voltage and current as the objective,to construct the predictive model function expression and solve it to obtain the optimal duty cycle of the control loop.Finally,the PI-model predictive control algorithm model is created in Matlab/Simulink for simulation and compared with the voltage and current double closed-loop PI con-trol strategy.The simulation results show that the proposed algorithm can effectively reduce the steady-state error of the converter and improve its dynamic performance.关键词
四相交错并联/PI-模型预测控制/虚拟阻容/离散状态建模Key words
four-phase staggered parallel/PI-model predictive control/virtual resistance-capacitance/discrete state mod-eling分类
信息技术与安全科学引用本文复制引用
杜子桥,苏淑靖,亢叶飞..基于PI-模型预测控制的四相交错并联Buck变换器[J].舰船电子工程,2026,46(2):98-103,6.基金项目
国家自然科学基金项目(编号:51875534)资助. （编号:51875534）
