 Design and fault-operation analysis of a modular cyclic cascade inter-cell transformer (ICT) for parallel multicell convertersS. Sanchez, F. Richardeau and D. Risaletto Mathematics and Computers in Simulation (MATCOM), 2017, vol. 131, issue C, 190-199 Abstract: Nowadays, parallel multicell converters including inter cell transformers (ICTs) are usually used in many different conversion systems and with various topologies. In this paper, an analysis of a modular cyclic cascade ICT is presented for nominal and fault operation. The first part of the article presents a pre-design methodology for cyclic cascade ICTs in nominal operation. Afterwards, an analysis of magnetic behaviour during failure operation as imbalance current or case of k disconnected phases will be presented. The aim of this article is to design a cyclic-cascade ICT that is more robust in failure operation. Air gaps (AGs) have been inserted in order to limit this saturation. A concept of compact cyclic-cascade ICT with just a single winding by phase is presented. We will show its principle of realization and 2D fine element simulation in order to validate this concept. Keywords: Multicell converter; InterCell Transformer (ICT); Coupled inductors; Fault-operation; Robustness (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:131:y:2017:i:c:p:190-199 DOI: 10.1016/j.matcom.2016.01.004 Access Statistics for this article Mathematics and Computers in Simulation (MATCOM) is currently edited by Robert Beauwens More articles in Mathematics and Computers in Simulation (MATCOM) from Elsevier |
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