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Real-Time Inertia Estimation Tool Implementation Based on Probing Signals

Conference ·
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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.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
DOE Contract Number:
AC36-08GO28308
OSTI ID:
2319211
Report Number(s):
NREL/CP-5000-89049; MainId:89828; UUID:a186ba50-9280-43ab-8516-286511925bfc; MainAdminId:72027
Country of Publication:
United States
Language:
English

References (13)

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Power system inertia estimation: Review of methods and the impacts of converter-interfaced generations journal January 2022
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Advanced Universal Grid Analyzer Development and Implementation conference May 2019
Probing-Based Inertia Estimation Method Using Hybrid Power Plants conference July 2023
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Impact of Low Rotational Inertia on Power System Stability and Operation journal January 2014

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Related Subjects

POWER TRANSMISSION AND DISTRIBUTION
inverter-based resources
power-hardware-in-the-loop
probing signal
real-time inertia estimation