Improvement of the Iraqi Super Grid Performance Using HVDC/HVAC Links by the Integration of Large-Scale Renewable Energy Sources

Israa Ismael Hussein, Sirine Essallah and Adel Khedher
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Israa Ismael Hussein: LATIS—Laboratory of Advanced Technology and Intelligent Systems, Ecole Nationale d’Ingénieurs de Sousse, Université de Sousse, Sousse 4023, Tunisia
Sirine Essallah: LATIS—Laboratory of Advanced Technology and Intelligent Systems, Ecole Nationale d’Ingénieurs de Sousse, Université de Sousse, Sousse 4023, Tunisia
Adel Khedher: LATIS—Laboratory of Advanced Technology and Intelligent Systems, Ecole Nationale d’Ingénieurs de Sousse, Université de Sousse, Sousse 4023, Tunisia

Energies, 2022, vol. 15, issue 3, 1-19

Abstract: The increasing use of renewable energy sources (RES) and their integration into transmission systems requires extensive studies to get more benefits from these sources. Stability analysis is one of the most crucial issues in these systems, and therefore needs to be studied in depth. In this paper, an analytical study was conducted for the stability assessment of the Iraqi super grid after adding a solar power plant with a capacity of 1000 MW using both HVAC and HVDC links for comparison purposes. Thus, the objective of this study was to determine the best way to integrate RES into the power grid while improving its performance. The system’s stability was evaluated for two types of faults: line and bus disturbances. The strength of the grid and its ability to absorb the newly added energy was also studied. The simulations were performed with the PSS/E software using the Newton-Raphson method for a 500 km transmission line length. The results showed that the HVDC link outperforms the HVAC link in improving the overall performance of the power system.

Keywords: stability analysis; power flow; HVAC; HVDC; transmission line; RES; SCR (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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