Stability analysis of hybrid renewable energy systems fed to a multimachine power system through a high-voltage direct-current link based on a modular multilevel converter using grid-forming converter control with particle swarm optimization

Key Points

• The study aims to analyze the stability of hybrid renewable energy systems connected to multi-machine power systems via high-voltage direct current links.
• Stability analysis of a hybrid renewable energy system connected to a multi-machine power system
• Performance assessment through steady-state, small-signal, and dynamic simulations
• Evaluation of three control strategies: grid-following, grid-forming, and grid-forming with particle swarm optimization
• Control strategy using grid-forming with particle swarm optimization enhances system stability under varying conditions
• Dynamic simulations indicate improved response to parameter sensitivity
• Steady-state conditions show effective integration of offshore wind farm and photovoltaic plant with MMC-based HVDC link