控制理论与应用2023，Vol.40Issue(11)：1911-1919,9.DOI:10.7641/CTA.2023.20471
受扰直流降压变换器自适应离散滑模控制设计与实现
Adaptive discrete-time sliding mode control design and implementation for DC-DC buck converters with disturbances
摘要
Abstract
DC-DC converters have been serving as indispensable components in energy conversion process,which play important roles in energy saving and efficiency promotion.In this paper,the output voltage regulation problem is addressed by applying disturbance observer based the adaptive discrete-time sliding mode control(ADSMC)algorithm.The tracking accuracy and disturbance rejection ability are significantly improved by introducing the second-order difference of dis-turbance estimations into the controller,which is provided by a novel discrete-time disturbance observer.The effects of disturbances are removed from the output voltage channel.Furthermore,an adaptive reaching law is implemented instead of constant gain to alleviate the control input chattering.Both dynamic and steady-state performance analysis are presented.Finally,experimental results are illustrated to demonstrate the elegant control performances.The comparative results show that stronger disturbance rejection ability and higher voltage tracking performances can be achieved even in the presence of multiple disturbances.关键词
直流降压变换器/离散滑模控制/自适应到达律/干扰观测器Key words
DC-DC converter/discrete-time sliding mode control/adaptive reaching law/disturbance observer引用本文复制引用
王佐,刘鹏..受扰直流降压变换器自适应离散滑模控制设计与实现[J].控制理论与应用,2023,40(11):1911-1919,9.基金项目
国家自然科学基金项目(62103102,62173221),江苏省自然科学基金项目(BK20210213),广东联合基金项目(2020A1515110125),中国博士后基金项目(2021M70077),江苏省博士后基金项目(2021K009A),中央高校基本科研业务费专项资金项目(2242022k30038)资助.Supported by the National Natural Science Foundation of China(62103102,62173221),the Natural Science Foundation of Jiangsu Province(BK20210213),the Guangdong Basic and Applied Basic Research Foundation(2020A1515110125),the China Postdoctoral Science Foundation(2021M70077),the Jiangsu Postdoctoral Research Funding Program(2021K009A)and the Fundamental Research Funds for the Central Universities(2242022k30038). （62103102,62173221）
