Juhasz, Kristof Peter and Hartmann, Bálint and Táczi, István and Vokony, István (2025) Estimation of Center of Inertia and Center of Power from WAMS and SCADA Measurements. In: Innovative Smart Grid Technologies Europe 2025. (In Press)
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Abstract
The increasing share of distributed renewable generation is reshaping the dynamics of modern power systems, necessitating more accurate and adaptive monitoring solutions. Wide Area Monitoring Systems (WAMS), based on Phasor Measurement Units (PMUs), provide high-resolution systemwide observability, enabling advanced applications. A critical input to these functions is the system frequency, which is often taken to be equal to the frequency of Center of Inertia (COI), in which the exact estimation remains an open question due to varying definitions of inertia-based weighting. This paper investigates alternative formulations using inertia constants and kinetic energy terms to determine the most representative system frequency. To support the evaluation, the spatial behavior of the Center of Power (COP) is also analyzed using SCADA-based power flow data. Results derived from real PMU and SCADA measurements show that the H·S-based COI formulation better aligns with the actual measured COP behavior.
| Item Type: | Conference or Workshop Item (Paper) |
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| Uncontrolled Keywords: | Center of Inertia, Center of Power, Wide Area Monitoring Systems, Phasor Measurement Unit |
| Subjects: | T Technology / alkalmazott, műszaki tudományok > TK Electrical engineering. Electronics Nuclear engineering / elektrotechnika, elektronika, atomtechnika |
| Depositing User: | dr István Vokony |
| Date Deposited: | 23 Sep 2025 06:02 |
| Last Modified: | 23 Sep 2025 06:02 |
| URI: | https://real.mtak.hu/id/eprint/224886 |
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