Versatile Three-Level FC-NPC Converter With High Fault-Tolerance Capabilities: Switch Fault Detection and Isolation and Safe Postfault Operation
| Autor: | Ilhem Slama-Belkhodja, Frédéric Richardeau, Hafedh Ben Abdelghani, Franck Mosser, Jean-Marc Blaquiere, Afef Bennani-Ben Abdelghani |
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| Přispěvatelé: | Laboratoire des Systèmes Electriques - LSE (Tunis, Tunisie), Ecole Nationale d'Ingénieurs de Tunis (ENIT), Université de Tunis El Manar (UTM)-Université de Tunis El Manar (UTM), Institut National des Sciences Appliquées et de Technologie - Carthage (INSAT Carthage), LAboratoire PLasma et Conversion d'Energie (LAPLACE), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique de Toulouse (INPT-ENSEEIHT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Convertisseurs Statiques (LAPLACE-CS), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Centre National de la Recherche Scientifique (CNRS), University of Toulouse |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Engineering
020209 energy Fault isolation Topology (electrical circuits) Multilevel converter 02 engineering and technology Decoupling capacitor Fault (power engineering) Fault detection and isolation law.invention law 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering business.industry 020208 electrical & electronic engineering [SPI.NRJ]Engineering Sciences [physics]/Electric power Thyristor Fault tolerance Fault Detection Capacitor Control and Systems Engineering Filter (video) business Hybrid converter |
| Zdroj: | IEEE Transactions on Industrial Electronics IEEE Transactions on Industrial Electronics, Institute of Electrical and Electronics Engineers, 2017, 64 (8), pp.6453-6464. ⟨10.1109/TIE.2017.2682009⟩ |
| ISSN: | 0278-0046 |
| DOI: | 10.1109/TIE.2017.2682009⟩ |
| Popis: | This paper deals with a hybrid fault-tolerant converter topology. It is performed through the connection of a classical three-phase three-level neutral-point-clamped (3L-NPC) converter with a fourth three-level flying capacitor (3L-FC) leg. The 3L-FC leg actively balances the 3L-NPC neutral-point voltage. For normal operation mode, this paper proposes a mathematical design of the filter needed to connect these two different topologies. Experimentally, and thanks to the already existing decoupling capacitors of the 3L-NPC converter, this filter requires the addition of only one low size inductance. When one fault of the power switch of the 3L-NPC occurs, this paper proposes a hardware reconfiguration technique based on only two fuses and one thyristor per leg allows a safe postfault operation recovery. This is achieved thanks to a simple fault-detection method and a new technique that combines fault leg isolation and corresponding phase postfault connection to the neutral point. Also, a dedicated field-programmable gate array (FPGA)-based control of the reconfigured converter is synthetized to ensure power system availability under fault operation mode. The converter fault-tolerant capabilities are addressed through simulation results and original overall experimental validations of the fault detection and isolation and the postfault operation steps, carried out on a 15-kW prototype converter. |
| Databáze: | OpenAIRE |
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