An integrated VSG fault ride-through strategy based on reactive power loop and voltage loop reset

Key Points

• The study aims to address overcurrent issues in grid-forming inverters during voltage faults by proposing an integrated control strategy.
• Proposed a control strategy using reactive power loop reset alongside a d-axis current limiter.
• Conducted simulations and experiments to validate the theoretical framework and practical effectiveness.
• Focused on achieving rapid current response during faults and desaturation of current limiter post-fault recovery.
• Demonstrated rapid current response during faults with a significant reduction in overcurrent incidents.
• Achieved effective desaturation of the current limiter following fault recovery, improving inverter performance.
• Verified the theoretical effectiveness through both simulations and experimental results.

Abstract