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A geometric approach to fault detection and isolation in a grid-connected inverter
46 viewed

A geometric approach to fault detection and isolation in a grid-connected inverter

Mashreghi, A

A geometric approach to fault detection and isolation in a grid-connected inverter

Mashreghi, A ; Sharif University of Technology | 2021

46 Viewed
  1. Type of Document: Article
  2. DOI: 10.1109/TCST.2020.3034717
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2021
  4. Abstract:
  5. We present a nonlinear geometric approach to fault detection and isolation (FDI) in a grid-connected inverter system. Open-switch faults in inverter power transistors together with faults in grid voltages and source current sensors are detected and isolated in the presence of disturbance. The detection process is based on dynamic model of an inverter, including a dc-bus capacitor and an output $RL$ filter. The proposed FDI system does not rely on balanced or zero-sum conditions in the grid point and is functional under nonsinusoidal voltages and currents. © 1993-2012 IEEE
  6. Keywords:
  7. Electric inverters ; Bus capacitors ; Detection process ; Fault detection and isolation ; Geometric approaches ; Grid connected inverters ; Non-sinusoidal voltage ; Source currents ; Switch faults ; Fault detection
  8. Source: IEEE Transactions on Control Systems Technology ; Volume 29, Issue 6 , 2021 , Pages 2622-2629 ; 10636536 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/9253616