电力系统及其自动化学报2024，Vol.36Issue(1)：17-23,7.DOI:10.19635/j.cnki.csu-epsa.001239
基于自适应超螺旋滑模观测器的Buck变换器无模型预测控制
Model-free Predictive Control of Buck Converter Based on Adaptive Super-twisting Sliding Mode Observer
摘要
Abstract
Aimed at the problem that a three-phase interleaved Buck converter will affect the system robustness and dy-namic performance under external disturbances,a model-free predictive control strategy based on adaptive super-twisting sliding mode observer model-free predictive control(ASTSMO-MFPC)is proposed.First,an ultra-local model of Buck converter is established to replace the original mathematical model,and an ASTSMO is designed to estimate the dynam-ic part of the ultra-local model.Second,the least squares method is introduced to predict the current error trend,so as to dynamically adjust the observer gain matrix.Finally,a discrete equation is constructed,and a cost function is designed to achieve MFPC.Experimental results indicate that the proposed algorithm can effectively suppress the steady-state er-rors caused by external disturbances,and it has better robustness and dynamic performance than the traditional MFPC.关键词
三相交错并联Buck变换器/超螺旋滑模观测器/无模型预测控制Key words
three-phase interleaved Buck converter/super-twisting sliding mode observer/model-free predictive con-trol(MFPC)分类
信息技术与安全科学引用本文复制引用
陈南振,于新红,许立斌,江田田,汪凤翔..基于自适应超螺旋滑模观测器的Buck变换器无模型预测控制[J].电力系统及其自动化学报,2024,36(1):17-23,7.基金项目
国家自然科学基金资助项目(52277070) （52277070）
