Presynchronization control for ship microgrid of merchant marine inverters based on VSG algorithm with MFAC

Abstract

The paper studies a presynchronization control of grid connection for large merchant marine microgrid inverters. We present a virtual synchronous generator (VSG) algorithm with model-free adaptive control (MFAC) to optimize the stable grid connection of ship microgrid and shore-to-ship power. To solve poor precision of presynchronization control under nonideal ship microgrid condition, an MFAC controller and its presynchronization method are developed for grid connection of ship-distributed generation inverters. The proposed presynchronization control method effectively avoids a high transient overcurrent and achieves a seamless grid connection to different types of shore power. The simulation results verify the effectiveness of the proposed control method.

Enhancing the Tracking Performance of Wind Turbine Blade Pitch Angle Control via Model-Free Adaptive Control Algorithm Utilizing Input-Output Differential

“…The MFAC has a wide range of application control fields, such as the distributed collaborative tracking control challenge in multi-agent systems (MAS) 11 , crane hook load sway 12 , reactive power compensation for magnetically controlled reactors 13 , and inverter synchronization 14 . However, research on stochastic wind energy is relatively limited 15 , necessitating further exploration for its essential application on wind turbines.…”