Open-circuit switch fault tolerant wind energy conversion system based on six/five-leg reconfigurable converter

Shahbazi, M ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.1016/j.epsr.2016.04.004
  3. Publisher: Elsevier Ltd , 2016
  4. Abstract:
  5. In this paper, an FPGA-controlled fault tolerant back-to-back converter for DFIG-based wind energy conversion application is studied. Before an open-circuit failure in one of the semiconductors, the fault tolerant converter operates as a conventional back-to-back six-leg one. After the fault occurrence in one of the switches, the converter will continue its operation with the remaining five healthy legs. Design, implementation, simulation and experimental verification of a reconfigurable control strategy for the fault tolerant six/five leg converter used in wind energy conversion are discussed. The proposed reconfigurable control strategy allows the uninterrupted operation of the converter with minimum affection from an open-circuit switch failure in one of the semiconductors. Software reconfiguration is also necessary in PWM signal generation unit, to assure that proper gate signals are calculated and generated based on the actual five-leg structure Simulations and experimental tests are carried out and the results are presented and compared. They all confirm the capability of the studied reconfigurable control and proposed fault tolerant architecture in ensuring the system's service continuity. © 2016 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Fault detection ; Fault tolerant system (FTS) ; Field programmable gate array (FPGA) ; Open-circuit switch failure ; Six/five-leg converter ; Energy conversion ; Fault tolerance ; Field programmable gate arrays (FPGA) ; Power converters ; Reconfigurable architectures ; Software testing ; Wind power ; Fault tolerant systems ; Fault-tolerant architectures ; Fault-tolerant converters ; Open circuits ; Simulation and experimental verifications ; Software reconfiguration ; Wind energy conversion system ; Reconfigurable hardware
  8. Source: Electric Power Systems Research ; Volume 137 , 2016 , Pages 104-112 ; 03787796 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0378779616301109