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R&D Nester's work on inertia in the electrical system

 

Within the scope of one of the R&D Nester projects with REN, that follows on from one of the initial projects related to the integration of renewables, it has been developed studies and analysis on the themes "Phenomena of low inertia in the electrical system", "Use of WAMS (Wide Area Monitoring System) to assess low frequency oscillations in the electrical system" and "Definition of WAMS alarms".

Regarding the "Phenomena of low inertia in the electrical system", the last 10 years were analyzed and the moments of "low inertia" were quantified based on criteria of quantity of MW of inertia and percentage of inertia in relation to the quantity of generation. It appears that 2019 was the year where the occurrence of such situations was highest. It is also possible to check the trend over these 10 years.

Regarding "Use of WAMS (Wide Area Monitoring System) to assess low frequency oscillations in the electrical system", 8 events in Iberia and the rest of Europe were analyzed, which allow a better understanding of these phenomena and how to detect them.

Finally, regarding the "Definition of WAMS alarms", the previous work described above, allowed to identify a set of suggestions for the definition of alarms for the national electrical system.

The work will be completed over the next few months. For any questions, contact R&D Nester (www.rdnester.com).

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