Table 2 Parameters of design conditions.

From: Study on load reduction and vibration control strategies for semi-submersible offshore wind turbines

Working conditions

Wave height(m)

Period(s)

Wind speed(m/s)

Control

E01 (Steady Wind)

1.1

8.5

8

Variable speed

E02 (Steady Wind)

1.1

8.5

10.74

Variable speed, Pitch

E03 (Steady Wind)

1.1

8.5

13

Pitch

E04 (Turbulent wind)

1.1

8.5

10.74

Variable speed, Pitch

E05 (Steady Wind)

10

20

13

Pitch