ORCID ID
0009-0004-0304-3476
Date of Award
8-2024
Degree Type
Dissertation
Degree Name
M.S.E.
Degree Program
Electrical Engineering
Department
Electrical Engineering
Major Professor
Rastgoufard, Parviz
Second Advisor
Alsamman, Abdul Rahman
Third Advisor
Amiri, Ebrahim
Fourth Advisor
Charalampidis, Dimitrios
Abstract
The primary objective of this study is to assess the weaknesses and susceptibilities of the power grid before the inverter-based resources (IBR). The weak spots within the grid, specifically at the point-of-interconnection (POI) for photovoltaic (PV) systems, are identified by using a classic short circuit ratio (SCR) metric. The performance of grid-following (GFL) and grid-forming (GFM) inverter types is compared using a 100 MVA-rated PV facility that is connected to a transmission line network. By subjecting the system to a six-cycle three-phase to ground fault at different sites, such as the PV POI and nearby busses, SCR values of roughly 4.5, 3, and 1.5 are recorded, respectively. The analysis shows that when the SCR at the PV POI is low, the GFM inverter has faster and smoother fault recovery responses in terms of active and reactive power compared to the GFL inverter.
Recommended Citation
Alattas, Batoul Ahmad A, "Analysis of Grid Forming Inverter (GFM) and Grid Following Inverter (GFL) Models In Simulating Power Systems With Varying Short Circuit Ratio (SCR)" (2024). University of New Orleans Theses and Dissertations. 3192.
https://scholarworks.uno.edu/td/3192
Rights
The University of New Orleans and its agents retain the non-exclusive license to archive and make accessible this dissertation or thesis in whole or in part in all forms of media, now or hereafter known. The author retains all other ownership rights to the copyright of the thesis or dissertation.