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    Fault tolerant operation of single-ended non-isolated DC-DC converters under open and short-circuit switch faults

    , Article 2013 15th European Conference on Power Electronics and Applications, EPE 2013 ; 2013 ; ISBN: 9781479901166 Jamshidpour, E ; Shahbazi, M ; Poure, P ; Gholipour, E ; Saadate, S ; Sharif University of Technology
    Fault tolerant operation of single-ended non-isolated DC-DC converters used in embedded and safety critical applications is mandatory to guaranty service continuity. This paper proposes a new, fast and efficient FPGA-based open and short-circuit switch fault diagnosis asssociated to fault tolerant converter topology. The results of Hardware-In-the-Loop and experimental tests are presented and discussed  

    Decentralized droop control in DC microgrids based on a frequency injection approach

    , Article IEEE Transactions on Smart Grid ; Volume 10, Issue 6 , 2019 , Pages 6782-6791 ; 19493053 (ISSN) Peyghami, S ; Davari, P ; Mokhtari, H ; Blaabjerg, F ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2019
    Power sharing control among grid forming dc sources employing a conventional voltage droop approach meets inaccurate load sharing and unacceptable voltage regulation performance. Thereby, communication-based secondary and supervisory controllers have been presented to overcome the aforementioned issues. Furthermore, with the aim of eliminating communication system, frequency-based droop approaches have been introduced for low-voltage dc grids where the frequency of the superimposed ac signal onto the dc voltage is proportional to the output power. However, in reality, dc grid structures can be applied to medium and high voltage applications with different X/R ratios. This paper generalizes...