Abstract
As renewable energy penetration increases and the traditional generators retire in power grids, system inertia decreases and exhibits significant daily fluctuations. Furthermore, fast frequency responses (FFRs) provided by the inverter-based resources (IBRs) begin to playa very critical role and bring new challenges to real-time system inertia monitoring due to the difficulties of quantifying its artificial inertia contribution. Thus, necessitating an accurate real-time inertia estimation tool will not only benefit the secure power grid operations, but also provide insights on assessing the artificial inertia contribution from the IBRs. This paper presents a probing-based real-time inertia estimation tool that has been validated through a power-hardware-in-the-Ioop (PHIL) test system using identical hardware battery energy storage system (BESS) and control in an actual power grid. Preliminary results indicate high estimation accuracy of the developed tool and pave the way for the field test and deployment.
Original language | American English |
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Number of pages | 6 |
DOIs | |
State | Published - 2024 |
Event | 2023 14th International Renewable Energy Congress (IREC) - Sousse, Tunisia Duration: 16 Dec 2023 → 18 Dec 2023 |
Conference
Conference | 2023 14th International Renewable Energy Congress (IREC) |
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City | Sousse, Tunisia |
Period | 16/12/23 → 18/12/23 |
NREL Publication Number
- NREL/CP-5000-89049
Keywords
- inverter-based resources
- power-hardware-in-the-loop
- probing signal
- real-time inertia estimation