Design and implementation of a passivity-based controller to regulate the power flow in a DAB of a SST

dc.contributorGil González, Walter Julián
dc.contributorEscobar Mejía , Andrés
dc.creatorLópez Rodríguez, Karol Daniela
dc.date2022-03-01T19:45:21Z
dc.date2022-03-01T19:45:21Z
dc.date2022
dc.date.accessioned2022-09-23T21:04:48Z
dc.date.available2022-09-23T21:04:48Z
dc.identifierUniversidad Tecnológica de Pereira
dc.identifierRepositorio UTP
dc.identifierhttps://repositorio.utp.edu.co/home
dc.identifierhttps://hdl.handle.net/11059/13935
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3525036
dc.descriptionThe SST is one of the determining elements of the smart grid since it has the functionalities of a conventional transformer and allows an appropriate integration of distributed generation sources, loads, and energy storage devices with the traditional power grid.
dc.descriptionThe interest in updating electrical networks and the possibility of having power semiconductor devices with better features (e.g., reliability and efficiency) have encouraged the production of elements, such as a Solid-State Transformer (SST). The SST is one of the determining elements of the smart grid since it has the functionalities of a conventional transformer and allows an appropriate integration of distributed generation sources, loads, and energy storage devices with the traditional power grid, in addition to having system functionality advantages such as unity power factor, mitigation of sags and swells, improving system efficiency and quality, and allowing a bidirectional flow of power. For this reason, the SST could replace the traditional transformer, considering the advantages it offers functional and physicals (less weight and volume). The intelligent energy management of an SST in a smart grid is feasible through the regulation of the power flow in its central device so-called Dual Active Bridge (DAB), which due to its topology (two half-bridge and a high-frequency link) make possible the bidirectionally on the power flow and permit the interconnection of renewable sources and other elements dc into a smart grid, and that in this way the advantages of SST can be made available within a power system. Hence, this work focuses on proposing a current controller based on Proportional-Integral (PI) passivity that regulates the power flow bidirectionally in a DAB. The proposed controller guarantees the system’s stability in a closed-loop, maintaining its passive properties. In addition, this controller preserves the simplicity of a PI control with high performance and robustness, where its control law is simple and does not depend on the converter’s parameters
dc.descriptionMaestría
dc.descriptionMagíster en Ingeniería Eléctrica
dc.descriptionTable of Contents 1 Introduction 7 1.1 Definition of the Problem . . . . . . . . . . . . . . . . . . . . . . 7 1.2 Justification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.3 Research Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.3.1 Overall objective . . . . . . . . . . . . . . . . . . . . . . . 9 1.3.2 Specific objectives . . . . . . . . . . . . . . . . . . . . . . 9 1.4 Literature Review . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.5 Contributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.6 Document structure . . . . . . . . . . . . . . . . . . . . . . . . . 13 2 Dynamical Model of a DAB 14 2.1 DAB Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.2 DAB Model as a Port-Hamiltonian System . . . . . . . . . . . . . 16 3 PI Passivity-Based Control 18 3.1 Port-Hamiltonian Passive System . . . . . . . . . . . . . . . . . . 18 3.2 PI-PBC Controller Design and Stability Analysis . . . . . . . . . . 19 3.3 DAB Controller Design . . . . . . . . . . . . . . . . . . . . . . . . 20 4 Simulations and Experimental Results 22 5 Conclusions 37 6 Appendices 43 6.1 Appendix A. Gate drivers schematic. . . . . . . . . . . . . . . . . 43 6.2 Appendix B. Voltage signal conditioning circuit. . . . . . . . . . . 44 6.3 Appendix C. Current signal conditioning circuit. . . . . . . . . . . 44 6.4 Appendix D. PI-PBC control diagram for DAB converter and C2000 processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 6.5 Appendix E. Classical PI control diagram for DAB converter and C2000 processor . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
dc.format46 pag.
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherUniversidad Tecnológica de Pereira
dc.publisherFacultad de Ingenierías
dc.publisherPereira
dc.publisherMaestría en Ingeniería Eléctrica
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dc.rightsManifiesto (Manifestamos) en este documento la voluntad de autorizar a la Biblioteca Jorge Roa Martínez de la Universidad Tecnológica de Pereira la publicación en el Repositorio institucional (http://biblioteca.utp.edu.co), la versión electrónica de la OBRA titulada: ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ La Universidad Tecnológica de Pereira, entidad académica sin ánimo de lucro, queda por lo tanto facultada para ejercer plenamente la autorización anteriormente descrita en su actividad ordinaria de investigación, docencia y publicación. La autorización otorgada se ajusta a lo que establece la Ley 23 de 1982. Con todo, en mi (nuestra) condición de autor (es) me (nos) reservo (reservamos) los derechos morales de la OBRA antes citada con arreglo al artículo 30 de
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dc.rightsAtribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject620 - Ingeniería y operaciones afines::629 - Otras ramas de la ingeniería
dc.subjectSmart grids
dc.subjectProportional-integral controller
dc.subjectPI control
dc.subjectDual active bridge
dc.subjectSolid-state transformer
dc.subjectPassivity-based control
dc.titleDesign and implementation of a passivity-based controller to regulate the power flow in a DAB of a SST
dc.typeTrabajo de grado - Maestría
dc.typehttp://purl.org/coar/resource_type/c_bdcc
dc.typehttp://purl.org/coar/version/c_ab4af688f83e57aa
dc.typeText
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