Storage-Based Frequency Shaping Control

With the decrease in system inertia, frequency security becomes an issue for power systems around world. Energy storage (ESS), due to their excellent ramping capabilities, are considered as a natural choice improvement of response following major contingencies. In this paper, we propose new strategy energy – frequency shaping control that allows completely eliminate Nadir, one main issues security, and at same time tune rate change (RoCoF) desired value. Nadir eliminated, assessment can be performed via simple algebraic calculations, opposed dynamic simulations conventional control strategies. Moreover, our proposed is also very efficient terms requirements on peak power, requiring less (up 40% cases) than virtual inertia approach performance.