Frank Duerr
@FrankDuerr
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Senior researcher in computer science (networking, mobile and pervasive computing, distributed systems) and lecturer at the University of Stuttgart; maker
Stuttgart, Germany
Joined July 2016
I've decided to continue this projekt at least until February 2023. New measuerements will be published weekly.
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Time for a short summary of the mains frequency measurements of 2022. As shown by the following box plot, there is no indication of a critical deviation from the 50 Hz nominal frequency, "critical" defined as being outside the range [49.8 Hz, 50.2 Hz].
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How to interpret these numbers: + Normal operation area: [49.8 Hz,50.2 Hz] + Minimum/maximum instantaneous frequency after loss of generation/load: [49.2 Hz,50.8 Hz] Higher deviations lead to load shedding and possible grid failure.
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Measured in Southern Germany (Plochingen). Disclaimer: these numbers have been provided by a private user, hoping they are interesting to the community, but without implying endorsement of any third party. All measurements are available at:
zenodo.org
Measurements of Mains Frequency (aka Utility Frequency) This repository provides measurements of the mains frequency (duration of every fully wave), taken in southern Germany (Plochingen), starting...
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Situation is normal. All values are clearly in the safe area (between 49.8 Hz and 50.2 Hz).
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Mains Frequency (f) -- Summary Week 51/2022: min(f) = 49.889 Hz max(f) = 50.109 Hz mean(f) = 50.0006 Hz 99 % confidence interval of the mean = [50.00059 Hz,50.00063 Hz]
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How to interpret these numbers: + Normal operation area: [49.8 Hz,50.2 Hz] + Minimum/maximum instantaneous frequency after loss of generation/load: [49.2 Hz,50.8 Hz] Higher deviations lead to load shedding and possible grid failure (#blackout).
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Measured in Southern Germany (Plochingen). Disclaimer: these numbers have been provided by a private user, hoping they are interesting to the community, but without implying endorsement of any third party. All measurements are available at:
zenodo.org
Measurements of Mains Frequency (aka Utility Frequency) This repository provides measurements of the mains frequency (duration of every fully wave), taken in southern Germany (Plochingen), starting...
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Situation is normal. All values are clearly in the safe area (between 49.8 Hz and 50.2 Hz).
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Mains Frequency (f) -- Summary Week 49/2022: min(f) = 49.898 Hz max(f) = 50.115 Hz mean(f) = 49.9998 Hz 99 % confidence interval of the mean = [49.99981 Hz,49.99985 Hz]
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How to interpret these numbers: + Normal operation area: [49.8 Hz,50.2 Hz] + Minimum/maximum instantaneous frequency after loss of generation/load: [49.2 Hz,50.8 Hz] Higher deviations lead to load shedding and possible grid failure (#blackout).
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Measured in Southern Germany (Plochingen). Disclaimer: these numbers have been provided by a private user, hoping they are interesting to the community, but without implying endorsement of any third party. All measurements are available at:
zenodo.org
Measurements of Mains Frequency (aka Utility Frequency) This repository provides measurements of the mains frequency (duration of every fully wave), taken in southern Germany (Plochingen), starting...
1
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Situation is normal. All values are clearly in the safe area (between 49.8 Hz and 50.2 Hz).
1
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Mains Frequency (f) -- Summary Week 48/2022: min(f) = 49.893 Hz max(f) = 50.098 Hz mean(f) = 50.0003 Hz 99 % confidence interval of the mean = [50.00025 Hz,50.00029 Hz]
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How to interpret these numbers: + Normal operation area: [49.8 Hz,50.2 Hz] + Minimum/maximum instantaneous frequency after loss of generation/load: [49.2 Hz,50.8 Hz] Higher deviations lead to load shedding and possible grid failure (#blackout).
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