On August 24 a mini seminar was arranged with the following presentations:
Introduction
Energiforsk nuclear portfolio and Grid Interference on Nuclear power plant Operations
Ringhals nuclear power plant
Protection interaction for NPP and external Power System
Faults and other incidents in the transmission system and in the nuclear power plants interact with the function of the fault clearance systems. Lars Messing from DNV GL will elaborate on how fault clearance system shall be designed to have high dependability and probability of disconnecting when needed, at the same time as the probability of unwanted disconnection is low.
Interarea oscillations and some late observations including nuclear power plants
In the Nordic power system several Phasor Measurement Units (PMUs) are installed which monitor inter-area and local oscillations. Robert Eriksson from Svenska kraftnät will go through observations and key findings from recent events of natural and forced oscillations. The real-time tool, assessment criteria and ongoing actions to improve awareness of oscillations will also be presented.