Synchronized continuous high-rate time-series recording in distribution grids for accurate evaluation

Jumar, Richard; Maab, Heiko; Kühnapfel, Uwe; Hagenmeyer, Veit

doi:10.1109/sgsma.2019.8784664

Cited by 3 publications

(2 citation statements)

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“…Te EDR also supports remote data storage, live monitoring, and current measurements, which are not depicted here. See [18,45,46] for details. Te edge-to-edge error of our receiver (Garmin GPS-18LVC) and PPS acquisition is less than 50 ns, which translates to a worst-case frequency error of 125 µHz in the 50 Hz case.…”

Section: Frequency Estimation-increasing Time Resolutionmentioning

confidence: 99%

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Microscopic Fluctuations in Power-Grid Frequency Recordings at the Subsecond Scale

et al. 2023

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Complex systems, such as the power grid, are essential for our daily lives. Many complex systems display multifractal behavior, correlated fluctuations and power laws. Whether the power-grid frequency, an indicator of the balance of supply and demand in the electricity grid, also displays such complexity remains a mostly open question. Within the present article, we utilize highly resolved measurements to quantify the properties of the power-grid frequency, making three key contributions: First, we demonstrate the existence of power laws in power-grid frequency measurements. Second, we show that below one second, the dynamics may fundamentally change, including a suddenly increasing power spectral density, emergence of multifractality and a change of correlation behavior. Third, we provide a simplified stochastic model involving positively correlated noise to reproduce the observed dynamics, possibly linked to frequency-dependent loads. Finally, we stress the need for high-quality measurements and discuss how we obtained the data analyzed here.

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Section: Frequency Estimation-increasing Time Resolutionmentioning

confidence: 99%

“…Te EDR also supports remote data storage, live monitoring, and current measurements, which are not depicted here. See[18,45,46] for details.…”

mentioning

confidence: 99%