Electric power grids regularly experience uncertain fluctuations from load demands and renewables, which poses a risk of violating operational limits designed to safeguard the system. In this paper, we consider robust AC OPF problem that minimizes generation cost while requiring certain level system security in presence uncertainty. The requires satisfy for all uncertainty realizations within s...

The dynamic response of power grids to small events or persistent stochastic disturbances influences their stable operation. Low-frequency inter-area oscillations are particular concern due insufficient damping. This paper studies the effect operating point on linear time-invariant dynamics networks. A pertinent metric based frequency grid is proposed quantify system’s stability against oscilla...