Kinetic energy estimation in the Nordic system
Paper in proceeding, 2018
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. Lastly, the Nordic kinetic inertia is estimated for 2025, with and without possible contributions from wind, further increasing the released kinetic energy during a n-1 contingency with 22%.
kinetic energy
Power system stability
power system.
frequency control
Author
Mattias Persson
RISE Research Institutes of Sweden
Peiyuan Chen
Power grids and Components
Proceedings of the 20th Power Systems Computation Conference
978-19-109631-0-4 (ISBN)
20th Power Systems Computation Conference, PSCC'18
Dublin, Ireland,
Dublin, Ireland,
Inertia Support Strategies using Wind Turbines for Low-Inertia Power System with High Penetration of Wind Power
Swedish Energy Agency (38527-1), 2014-09-01 -- 2017-04-30.
Driving Forces
Sustainable development
Areas of Advance
Energy
Subject Categories
Energy Systems
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.23919/PSCC.2018.8442434