“20th PSCC 2018 papers submission and review platform

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Kinetic Energy Estimation in the Nordic System

An algorithm for estimating the kinetic energy in the Nordic power system has been presented and compared to
the TSOs’ estimation based on breaker status. The average error between the TSOs’ estimate and the proposed estimate is 0.83%. Furthermore, the standard deviation between the two estimates
is 13 GWs, about 7% of the system average kinetic energy. The proposed estimate manages to capture the diurnal variation of the system kinetic energy with a correlation coefficient of 0.94.
The total system kinetic energy in 2015 is estimated considering a possible contribution of kinetic energy from wind turbines during a large power imbalance.

Author(s):

Mattias Persson    
Chalmers University of Technology, Electric Power Engineering
Sweden

Peiyuan Chen    
Chalmers University of Technology, Electric Power Engineering
Sweden

 

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