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UID:20260526T041945EDT-3298sPEANd@132.216.98.100
DTSTAMP:20260526T081945Z
DESCRIPTION:Abstract\n\nBy utilizing distributed renewable energy resources
 \, Microgrid is considered as an alternative to solve the energy crisis an
 d decrease carbon dioxide emissions. Recently\, inverters are employed as 
 the interface between the distributed energy resources (DER) and the elect
 ric grid. Employing Inverters can improve the controllability of DERs. How
 ever\, inverter-based resources are different from conventional synchronou
 s generators\; inverters adopt different control schemes which make their 
 fault current analysis and estimation more complex\; inverters have limite
 d fault current. Moreover\, the fault current magnitude varies significant
 ly when a microgrid transfers from the grid-connected mode to the island m
 ode of operation\; because of the mentioned features the fault detection a
 nd protection of the microgrids that include inverter-based distributed re
 sources is challenging.\n\nThis thesis proposes a protection scheme for mi
 crogrids integrating inverter-based DERs which detects different types of 
 faults including impedance faults in the microgrid in both operating modes
 . Firstly\, two parameters named voltage phase angle shift and D parameter
  are introduced for fault detection. Then\, by using the proposed paramete
 rs\, a fault detection element is proposed. In addition to fault detection
 \, determination of the fault current direction is essential to have selec
 tive protection. Because of the inverters’ specific fault current characte
 ristics\, conventional directional elements may maloperate in the presence
  of inverter-based DER in a microgrid. Therefore\, a directional element i
 s introduced in this thesis to determine the current direction during faul
 t. The proposed directional element determines the fault current direction
  based on the current phase angle shift.\n\nIn addition to fault detection
  and directional elements\, a coordination element and a backup protection
  element are also proposed in this thesis to have a coordinated protection
  scheme that can provide backup protection in case of primary relay’s brea
 ker failure or communication loss. Then\, it is explained how the proposed
  elements are working together as a protection relay\, and the protection 
 scheme implemented by the proposed relay is introduced.\n\nThe performance
  of the proposed scheme is evaluated by simulating different scenarios in 
 different microgrid configurations. The results are also verified through 
 Controller Hardware In the Loop setup. The obtained results confirm the hi
 gh performance of the proposed protection scheme in microgrids.\n
DTSTART:20231110T150000Z
DTEND:20231110T170000Z
LOCATION:Room 603\, McConnell Engineering Building\, CA\, QC\, Montreal\, H
 3A 0E9\, 3480 rue University
SUMMARY:PhD defence of Ehsan Dehghanpour – Short Circuit Protection of Micr
 ogrids Integrating Inverter-Based Distributed Energy Resources
URL:/ece/channels/event/phd-defence-ehsan-dehghanpour-
 short-circuit-protection-microgrids-integrating-inverter-based-352508
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