Converter-Driven Stability Analysis of Power Systems Integrated with Hybrid Renewable Energy Sources

Renewable energy sources such as wind power and photovoltaics (PVs) have been increasingly integrated into the system through electronic converters in recent years. However, converter-driven stability has issues under specific circumstances, for instance, modal resonances might deteriorate dynamic performance of systems or even threaten overall stability. In this work, integration impact a hybrid renewable source (HRES) on interaction was investigated an IEEE 16-machine 68-bus system. paper, firstly, HRES is introduced, which consists full converter-based generation (FCWG) photovoltaic (FCPV). The equivalent models FCWG FCPV are then established, followed by linearized state-space modeling. On basis, analysis performed to reveal resonance mechanisms between different (RESs) weak grids interconnected multi-modal phenomenon. Additionally, time-domain simulations were conducted verify effectiveness support results. To avoid detrimental resonances, multi-parametric optimization strategy further proposed retuning controller parameters multi-RESs results demonstrate effect external AC its various impacts