Parts
Components
Effects
Offshore wind turbine [16]
Rated power of floating wind turbine
The high-power wind turbine will offset the final cost.
Control system
Torque controller and Pitch controller are recommended to maximize power capture and regulate generator speed.
Floating foundation[15,17,18,20]
Water ballast added
Two layers of shell design
It improves the stability, but cost increases a lot.This design helps to improve the strength but lead to the incremental cost.
Footplates added
It increases the foundation damping, which is advantageous when it responds dynamic loads.
Braceless design
[42] It is proved that braceless structure is less prone to the fatigue occurred in the foundation.
Mooring system [19]
Catenary system Taut leg system
Comparing three types of mooring system, catenary system costs least, but the vertical tension of the anchor line is insufficient to maintain platform stability.
Tension leg system
Tension leg system considered as a subset of the tau-leg system have more excellent stability. However, it increases the complexity of structure and costs a lot.