- Rapport
- Kärnkraft
Survey on power system ancillary services
The technical requirements for ancillary services depend on the characteristics of the power system. The four regions provide a forecast, however, of the direction in which the ancillary services are developing. Technically, various additional grid services, such as frequency and voltage control, could be provided by almost all nuclear power plants, NPP, in the future, if an adequate market design is established.
Automatic and/or manual Frequency Restoration Reserve products may well be the best candidates for the ancillary services provided by NPPs in the Nordic countries. The Nordic NPPs can also participate in economic dispatch, redispatch and voltage regulation, and there are already various examples of such operation, e.g., Ringhals 1 in the summer of 2020, participated in voltage control for the Swedish grid system.
Rapporter och publikationer
Här listas rapporter och resultatblad från programmet.
- Rapport
Fast Frequency Support Impact On Nuclear Generation
This project assessed how Fast Frequency Support (FFS) from an HVDC link interacts with nuclear-type synchronous generator dynamics.
|2025:1145Danilo Obradovic', RISE
- Rapport
Impact of over-frequency events on Nordic NPPs
This report quantifies over-frequency events by using a simulation model of the Nordic synchronous system and simulating different faults related to the HVDC links, in combination with operating conditions of high and low inertia.
|2025:1118Matilda Arvidsson, Andreas Benjaminsson Lucas Finati Thomée, Daniel Karlsson
- Rapport
Exchange Strategies for Power Electronics in Rectifiers and UPS System for NPP
Replacing outdated power electronics in NPP auxiliary systems is crucial for maintaining operational reliability and safety.
|2025:1107Frede Blaabjerg
- Rapport
Trends of frequency deviations
In this report grid frequency statistics of the last two decades have been examined together with analysis of inertia values of the Nordic Power System. Interviews have been held with the Nordic Nuclear Production Plant owners and the Swedish and Finnish TSOs. Conclusions are made whether it exist correlations with system quantities like frequency quality, inertia, wind power production, wear and tear of nuclear plants, and system services.
|2025:1091Viktorija Dudjak, Jonas Persson, Markus Björklund