Modeling and Parameter Analysis of the OC3-Hywind Floating Wind Turbine with a Tuned Mass Damper in Nacelle

Table 5

Percentage of load reduction with different TMD tuning results compared with baseline.

Case	Evaluation index	Den1	Den2	𝐽1	𝐽2
10 m/s	DEL TwrBsMyt	6.35	0.66	0.52	6.00
	DEL TwrBsMxt	32.18	14.2	11.44	28.37
	DEL RootMyc1	1.07	−0.18	0.10	0.85
	DEL Anch1Ten	0.93	3.01	1.21	0.93
	95th TwrBsMyt	−2.00	−4.04	−3.89	−2.00
	95th TwrBsMxt	6.01	2.7	2.55	5.06
	95th PtfmPitch	−2.08	−1.96	−2.08	−2.08
	95th PtfmRoll	−1.67	0.21	0.13	−1.67
18 m/s	DEL TwrBsMyt	3.61	7.77	8.78	3.35
	DEL TwrBsMxt	25.55	0.98	−3.94	21.24
	DEL RootMyc1	1.07	4.99	5.93	1.14
	DEL Anch1Ten	1.15	0.32	0.32	1.14
	95th TwrBsMyt	−3.15	5.02	6.48	−3.25
	95th TwrBsMxt	7.90	4.70	1.69	7.10
	95th PtfmPitch	−1.05	10.66	12.43	−1.04
	95th PtfmRoll	6.55	15.54	14.32	6.58
	RMS GenPwr	−5.46	21.09	29.22	−5.41
37 m/s	DEL TwrBsMyt	1.47	−19.95	−16.25	1.22
	DEL TwrBsMxt	0.14	0.51	0.42	0.18
	DEL RootMyc1	1.80	−45.71	−28.34	2.03
	DEL Anch1Ten	1.33	1.83	0.96	0.78
	95th TwrBsMyt	−0.78	−4.88	−2.33	−0.77
	95th TwrBsMxt	0.41	0.40	0.25	0.47
	95th PtfmPitch	4.41	5.40	4.44	4.41
	95th PtfmRoll	−0.30	−0.63	−0.57	−0.30