"The expert committee that prepared the report had access to a wealth of data, including status logs from most of the major hardware on the Spanish and Portuguese grid, often recorded with sub-second precision."
"One of the key issues the committee examined was oscillations in the grid, as noted in the preliminary report. These occur because, while the grid typically displays steady, average behavior, that stability comes from many independent pieces of hardware that may drift from the average."
A year ago, Spain and Portugal faced a blackout caused by voltage oscillations and hardware disconnections. A detailed report from ENTSO-e confirmed these findings and provided insights on preventing future incidents. The expert committee analyzed extensive data from the Iberian grid, including logs from major hardware and interchanges with France and Morocco. They focused on how oscillations affected grid stability, emphasizing the need for improved operational rules to manage hardware behavior effectively.
Read at Ars Technica
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