US 12,191,666 B2
Systems and methods for power system stabilization and oscillation damping control
Daniel S. Kirschen, Seattle, WA (US); Payman Arabshahi, Seattle, WA (US); and Ryan Elliott, Seattle, WA (US)
Assigned to University of Washington, Seattle, WA (US)
Appl. No. 17/602,143
Filed by University of Washington, Seattle, WA (US)
PCT Filed Apr. 17, 2020, PCT No. PCT/US2020/028679
§ 371(c)(1), (2) Date Oct. 7, 2021,
PCT Pub. No. WO2020/214913, PCT Pub. Date Oct. 22, 2020.
Claims priority of provisional application 62/835,885, filed on Apr. 18, 2019.
Prior Publication US 2022/0149628 A1, May 12, 2022
Int. Cl. H02J 3/24 (2006.01); G05B 13/04 (2006.01)
CPC H02J 3/241 (2020.01) [G05B 13/041 (2013.01); H02J 3/242 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a computing device configured to receive frequency data from a plurality of sensors within a power system;
the computing device further configured to calculate an estimate of a speed of a center of inertia signal for the power system, based at least on the received frequency data;
a controller configured to calculate a control error signal for the power system based at least on a difference between a rotor speed and the estimate of the speed of the center of inertia signal;
the controller further configured to calculate an auxiliary input signal based at least on the control error signal; and
an actuator configured to receive the auxiliary input signal and provide an output configured to improve a stability of the power system.