{"title":"Bumpless transfer control for DC-DC buck-boost converter modeled by switched affine systems","authors":"Xiaozeng Xu , Yanzheng Zhu , Fen Wu , Xinkai Chen , Chun-Yi Su","doi":"10.1016/j.conengprac.2025.106320","DOIUrl":null,"url":null,"abstract":"<div><div>This study focuses on the bumpless transfer control for a DC-DC buck-boost converter, which is modeled as a class of discrete-time switched affine systems. While achieving smooth transitions between operating modes is a well-established goal in the literature, this work introduces a novel approach to tackle these challenges through innovative methodologies. A shifted-point-dependent controller and a state-dependent switching law are developed, ensuring convergence to a union of regions encompassing shifted points and mitigating oscillations during switching events. A novel multi-shifted-point-dependent Lyapunov functional is proposed, integrating bump limitation constraints, and sufficient conditions are derived for the solvability of the bumpless transfer control problem. Furthermore, the methodology is generalized to switched affine systems with uncertainties, and the corresponding robust stability conditions are provided. Finally, the superiority of the proposed approach is demonstrated through a experimental verification of a DC-DC buck-boost converter.</div></div>","PeriodicalId":50615,"journal":{"name":"Control Engineering Practice","volume":"159 ","pages":"Article 106320"},"PeriodicalIF":4.6000,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Control Engineering Practice","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0967066125000838","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AUTOMATION & CONTROL SYSTEMS","Score":null,"Total":0}
引用次数: 0
Abstract
This study focuses on the bumpless transfer control for a DC-DC buck-boost converter, which is modeled as a class of discrete-time switched affine systems. While achieving smooth transitions between operating modes is a well-established goal in the literature, this work introduces a novel approach to tackle these challenges through innovative methodologies. A shifted-point-dependent controller and a state-dependent switching law are developed, ensuring convergence to a union of regions encompassing shifted points and mitigating oscillations during switching events. A novel multi-shifted-point-dependent Lyapunov functional is proposed, integrating bump limitation constraints, and sufficient conditions are derived for the solvability of the bumpless transfer control problem. Furthermore, the methodology is generalized to switched affine systems with uncertainties, and the corresponding robust stability conditions are provided. Finally, the superiority of the proposed approach is demonstrated through a experimental verification of a DC-DC buck-boost converter.
期刊介绍：
Control Engineering Practice strives to meet the needs of industrial practitioners and industrially related academics and researchers. It publishes papers which illustrate the direct application of control theory and its supporting tools in all possible areas of automation. As a result, the journal only contains papers which can be considered to have made significant contributions to the application of advanced control techniques. It is normally expected that practical results should be included, but where simulation only studies are available, it is necessary to demonstrate that the simulation model is representative of a genuine application. Strictly theoretical papers will find a more appropriate home in Control Engineering Practice''s sister publication, Automatica. It is also expected that papers are innovative with respect to the state of the art and are sufficiently detailed for a reader to be able to duplicate the main results of the paper (supplementary material, including datasets, tables, code and any relevant interactive material can be made available and downloaded from the website). The benefits of the presented methods must be made very clear and the new techniques must be compared and contrasted with results obtained using existing methods. Moreover, a thorough analysis of failures that may happen in the design process and implementation can also be part of the paper.
The scope of Control Engineering Practice matches the activities of IFAC.
Papers demonstrating the contribution of automation and control in improving the performance, quality, productivity, sustainability, resource and energy efficiency, and the manageability of systems and processes for the benefit of mankind and are relevant to industrial practitioners are most welcome.
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