Transient Stability Study of a Real-World Microgrid with 100% Renewables

Conference · Wed Nov 30 04:00:00 EST 2022

DOI:https://doi.org/10.1109/ECCE50734.2022.9947656· OSTI ID:1916449

Velaga, Yaswanth Nag; Wang, Jing; Pratt, Annabelle; Abcede, Laurence; Shamukh, Nagadev

This paper performs a transient stability study of a real-world microgrid that can operate with 100% renewables to better understand the stability and reliability of the microgrid under various dynamic scenarios. In particular, the operation of multiple grid-forming (GFM) and grid-following (GFL) inverters in such a power system is not well understood under dynamic operation conditions, such as islanding and black start; therefore, in this paper, an electromagnetic transient model of the microgrid is developed to investigate the stability of the system under various dynamic operating conditions and to identify potential reliability risks. The PSCAD/EMTDC simulation with the high-fidelity model provides helpful insights into the optimal operation modes of GFM and GFL inverters as well as the stability and reliability of the microgrid. It can also inform field deployment in terms of inverter control parameters and coordination as well as the expected performance of black start and unplanned islanding.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1916449
• Report Number(s): NREL/CP-5D00-85114; MainId:85887; UUID:cb24300f-34c1-42ac-ac01-f8526417ac1b; MainAdminID:68537
• Country of Publication: United States
• Language: English

Related Subjects

POWER TRANSMISSION AND DISTRIBUTION
black start
droop control
grid-following inverters
grid-forming inverters
transient stability