Utility-Scale BESS Deployment in Renewable-Rich Northern Region Grid for Enhancing PFR

This paper addresses the increasing demand for Primary Frequency Response (PFR) due to the integration of Renewable Generating Plants (RGPs) into the power system. The study explored the potential benefits of using Utility-Scale Battery Energy Storage Systems (US-BESS) to enhance the depleting system PFR. Through dynamic simulations on a Northern Region Power Grid (NRPG) test system on emulated over and under-frequency conditions, the study demonstrates that US-BESS outperforms traditional PFR sources in terms of quick power regulation, i.e. charging/discharging and faster ramp-up and ramp-down rate power (± MW/s) response. Hence improving system PFR as such over-frequency ($f_{z\mathrm{e}nith}$) by 0.10 Hz and under-frequency ($f_{nadir}$) by 0.1812 Hz. The study findings highlight that deploying US-BESS with RGPs (i.e. SPVF and WTF) can effectively complement their higher integration, complying with PFR requirements, and offer economic advantages to ancillary service providers through increased participation in the frequency regulation market.