Multi-rotor floating wind turbine concepts : control co-design to ensure their feasibility

Abstract

Recently, several multi-rotor floating wind concepts have been developed, ranging from 2 to dozens of generators. Starting from the simplest one, its singular design (with a single point mooring) presents a critical challenge: aligning the platform with the wind to prevent high loads, wake losses and instability, which directly impact on lifespan and revenue.

Conventional control strategies fall short. The solution lies in control co-design, an integrated approach that harmonizes the system design with its control logic from day one. The main goal of this work is to present several control co-design solutions proposed to overcome this issue, from control co-design concepts to control algorithms.