RT Journal Article T1 Stability improvement of a transmission grid with high share of renewable energy using TSCOPF and inertia emulation A1 Arredondo Rodríguez, Francisco A1 Ledesma Larrea, Pablo A1 Castronuovo, Edgardo Daniel A1 Aghahassani, Mohammadamin AB This paper proposes a Transient Stability Constrained Optimal Power Flow (TSCOPF) formulation that models non-synchronous renewable generation equipped with synthetic inertia. The proposed optimization problem calculates the optimal operating point of the system, accommodating highshares of non-synchronous renewable generation while ensuring transient stability in the event of critical incidents. Synthetic inertia controllers are used to improve the dynamic stability of the system in cases of very high share of renewable generation. The proposed tool is tested in the North-West Spanish system, a network with a high penetration of wind energy that causes areduction in the total system inertia. The results of the study show that 1) synthetic inertia in renewable power plants can diminish electromechanical oscillations after a severe contingency, reducing the cost of ensuring transient stability; 2) using synthetic inertiathe system becomes more stable when conventional generation is decommissioned following de-carbonization and renewable promotion policies; and 3) the proposed model can be used tocalculate the parameters of the synthetic inertia control. PB IEEE SN 0885-8950 SN 1558-0679 (online) YR 2022 FD 2022-07 LK https://hdl.handle.net/10016/35223 UL https://hdl.handle.net/10016/35223 LA eng NO This work was supported by the Spanish Ministry of Science and Innovation (ref. PID2019-104449RB-I00) within the 'Plan Estatal de Investigación Científica y Técnica y de Innovación 2017/2020'. DS e-Archivo RD 1 sept. 2024