Kinetic energy estimation in the Nordic system
Paper i 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%.

power system.

Power system stability

frequency control

kinetic energy

Författare

Mattias Persson

Chalmers, Elektroteknik, Elkraftteknik

Peiyuan Chen

Elnät och komponenter

Proceedings of the 20th Power Systems Computation Conference

20th Power Systems Computation Conference, PSCC'18
Dublin, ,

Stödstrategier medelst vindkraftverk för elsystem med lågt tröghetsmoment och med hög andel av vindkraft

Energimyndigheten, 2014-09-01 -- 2017-04-30.

Drivkrafter

Hållbar utveckling

Styrkeområden

Energi

Ämneskategorier

Energisystem

Annan elektroteknik och elektronik

Mer information

Skapat

2018-06-19