The Study of STATCOM-BESS Damping Power System Oscillations based on DTA Method

Abstract

The method of damping torque analysis (DTA) is applied to STATCOM/BESS (Battery Energy Storage System) of multi-machine power system for damping power system low-frequency oscillation. This paper investigates how the damping torque of energy storage elements produces, delivers and affects modal damping, and it presents the installation and location of ESS, the selection of additional stable control galley and adjusting method of parameter allocation based on DTA. The calculation and emulation results indicate that the DTA method could exactly extend the mechanism of EES damping power system oscillations, test the feasibility of adjusting method in ESS, and finally provide the practical example of large-scale power grid.