Lyapunov-based high performance controller for modular resonant DC/DC converters for medium voltage DC grids

Aboushady, Ahmed A. and Ahmed, Khaled Hani and Finney, Stephen J. and Williams, Barry W. (2017) Lyapunov-based high performance controller for modular resonant DC/DC converters for medium voltage DC grids. IET Power Electronics, 10 (15). 2055–2064. ISSN 1755-4543 (https://doi.org/10.1049/iet-pel.2017.0180)

Preview

Text. Filename: Aboushady_etal_IETPE2017_Lyapunov_based_high_performance_controller_for_modular_resonant.pdf Accepted Author Manuscript Download (1MB)| Preview

Abstract

This study presents a high-performance controller based on the Lyapunov stability criterion that enhances the dynamic performance and disturbance rejection capability of resonant DC/DC converters when compared with classical PI control. The series–parallel resonant converter (SPRC) is used as the candidate converter to which this controller design is applied but the design can be generalised to other types of resonant DC/DC converters. By using a multiple module approach, low-power modules of this resonant converter are stacked to enable operation at medium-voltage DC (MVDC). The proposed controller design is applied to modular structure of the SPRC to verify its high-performance output in conjunction with active sharing control loops that ensure uniform current/voltage distribution across the multiple interconnected modules. Detailed controller design, closed-loop stability criteria, robustness and parameter sensitivity are investigated and controller performance is compared and verified against the classical PI control in simulation and low-scaled experimental prototype. Operations in single-module and two-module input-series output-parallel modes are both studied. The study affirms the selection of the modular DC/DC converter architecture and its associated proposed controls for high-performance MVDC applications.

• Share and Export
  

  RefWorksRIS (EndNote Online, Zotero, Ref manager, etc)RDF+XMLEndNoteASCII CitationOpenURL ContextObject in SpanMPEG-21 DIDLRIOXX2 XMLBibTeXAtomEP3 XMLDublin CoreRDF+N-TriplesMODSHTML CitationJSONData Cite XMLRDF+N3Multiline CSVOpenURL ContextObjectReferSimple MetadataMETS
• Item metadata

  Item type:	Article
  ID code:	63280
  Dates:	Date Event 15 December 2017 Published 11 August 2017 Published Online 9 August 2017 Accepted
  Notes:	This paper is a postprint of a paper submitted to and accepted for publication in IET Power Electronics and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at the IET Digital Library: https://doi.org/10.1049/iet-pel.2017.0180
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering
  Depositing user:	Pure Administrator
  Date deposited:	13 Feb 2018 16:46
  Last modified:	11 Nov 2024 11:54
  Related URLs:	http://researchonline.gcu.ac.uk/portal/e...
  URI:	https://strathprints.strath.ac.uk/id/eprint/63280