Cooperative Control of Energy Storage for Transient Stability Enhancement

The increasing adoption of inertia-less power sources raises concerns with respect to the ability of the power grid of the future in resisting large disturbances. In this paper, we propose a method that leverages fast-acting energy storage to stabilize generators when subject to contingencies. This is done by a cooperative control protocol capable of coordinating the control actions of neighboring control agents. The goals of this controller is achieving rotor speed synchronism between nearby generators and limiting the rotor angular frequency deviation from nominal values. The distributed protocol is tested using IEEE 39-bus test system implemented in MATLAB/Simulink. The results show that the designed controller can increase the critical clearing time of the system when compared to classical power system stabilizers and a parametric feedback linearization method that leverages energy storage systems.