A Method Based on Numerical Wind Field and Extreme Learning Machine for Typhoon Wind Speed Prediction of Wind Farm

Table 2

The overall RMSE of typhoon key parameter prediction.

Key parameter	1 h ahead	2 h ahead	3 h ahead	4 h ahead	5 h ahead	6 h ahead
Vmax	1.730064	2.563183	3.569731	4.43167	5.274586	5.973571
Pair	2.715035	3.783636	5.132059	6.172818	7.148655	8.036933
	2.468804	2.990488	3.19536	3.716567	4.315859	4.417815
θ	19.92125	20.02723	21.53194	23.19538	28.60333	30.37751
φltd	0.11604	0.18525	0.239314	0.302295	0.384715	0.4521
φlgd	0.072334	0.106627	0.143203	0.180261	0.231382	0.293897

Note: from 9:00, September 16, 2018, to 6:00, September 17, 2018.