Why waveform data reveals what aggregation hides In power system measurement and analysis, the method you choose for data acquisition is an important factor – especially when you’re chasing a… Weiterlesen »The Power Behind Point-on-Wave Acquisition
Welcome to the 6th report this year of the data acquired with the PQopen measurement network. News of PQopen Network New Location in Southern-East Europe Since June, there is a… Weiterlesen »Grid Frequency Report 06-2026
Welcome to the 5th report this year of the data acquired with the PQopen measurement network. News of PQopen Network Netherlands – more insights Due to the good response of… Weiterlesen »Grid Frequency Report 05-2026
Welcome to the 4th report this year of the data acquired with the PQopen measurement network. Summary In the summary, the 1s-mean value of the mains frequency is evaluated. Statistics… Weiterlesen »Grid Frequency Report 04-2026
„Die Frequenz schwankt heute aber schon stark – früher gab es das nicht!“ Mit dieser Feststellung werde ich oft konfrontiert. Es herrscht die weitverbreitete Meinung, dass die Netzfrequenz in Europa… Weiterlesen »Netzfrequenz im Wandel: Wird unser Stromnetz wirklich immer „unruhiger“?
Welcome to the third report this year of the data acquired with the PQopen measurement network. Summary In the summary, the 1s-mean value of the mains frequency is evaluated. Statistics… Weiterlesen »Grid Frequency Report 03-2026
Since the launch of PQopen, I am frequently asked: How can a phenomenon discovered in a local low-voltage (LV) grid be classified as a cross-regional event? In this article, I… Weiterlesen »Can Local Measurements Explain High-Voltage Grid Phenomena?
One day after the publishing of the Grid Frequency Report of February, there were some interesting things going on on Sunday. Two different oscillation phenomenon were detected, one in the… Weiterlesen »Oscillations on 1st of March 2026
Welcome to the second report this year of the data acquired with the PQopen measurement network. Summary In the summary, the 1s-mean value of the mains frequency is evaluated. Statistics… Weiterlesen »Grid Frequency Report 02-2026
TL;DR Die scheinbaren „Störungen“ im Frequenzsignal sind meist keine Messfehler. Sie entstehen durch reale Lastwechsel im Netz, die Spannungsamplitude und Phasenwinkel verändern. Phasensprünge führen zu kurzen Frequenzpeaks, schnelle Amplitudenänderungen erzeugen… Weiterlesen »Transiente Phänomene bei der Frequenzmessung