Fast frequency support from hybrid solar PV and wind power plant

Abstract

Due to increasing demand for electricity, fast depletion of conventional fossil fuels and adverse environmental impact of fossil fuel use, there is a paradigm shift towards renewable energy (RE) sources, with solar photovoltaic (PV) and wind being the frontrunners. To address diminishing inertia issue in RE integrated system, this paper presents a control strategy to exploit fast frequency support from hybrid solar PV and wind power plant (HSWP). The fast frequency support from HSWP has been studied under different scenarios including inertial support without any de-loading, inertial support along with primary frequency support from de-loaded solar PV system, inertial support along with primary frequency support from de-loaded wind farm, and inertial support along with primary frequency support under de-loaded operation of both the Solar PV and wind farm in the HSWP. A comparative analysis of results under different scenarios is also presented.