Research and Practice on Localization of Offshore Wind Turbines

doi:10.12096/j.2096-4528.pgt.22030

Abstract

Abstract:

This paper analyzed the localization status of key components and systems in offshore wind turbines such as blades, spindles, electrical systems, and control systems.In view of the localization weaknesses existing in the components and systems of offshore wind turbines, the localization of blades, main bearings, converters and programmable logic controller (PLC) was carried out by using the ideas of theoretical analysis, material/component selection, component development, test verification and overall assembly, and 5 MW offshore wind turbines were assembled with the developed localization components and systems. The localization rate of the unit was more than 95%. The results show that most of the components and systems of offshore wind turbines have the conditions for localization, but some technologies, such as blade design, still rely on imports, and a few core components are still missing in China.

Key words: offshore wind power, localization, wind turbine, blade, main bearing, programmable logic controller (PLC) control system

CLC Number:

TK 83

Caixin SUN, Bo ZHANG, Wei TANG, Yiming ZHOU, Mingzhi FU, Meng QIN, Xiaojiang GUO. Research and Practice on Localization of Offshore Wind Turbines[J]. Power Generation Technology, 2023, 44(5): 696-702.

Figures/Tables 8

References 17

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区域	加载位置/m	不同形变率的应变值/10^-6
区域	加载位置/m	40%	60%	80%	100%
PS面	1.5	644	966	1 287	1 612
	10.8	1 474	2 246	3 015	3 808
	22.7	1 663	2 528	3 371	4 208
	30.3	1 822	2 767	3 682	4 578
	41.8	1 945	2 945	3 885	4 758
	49.4	1 726	2 602	3 411	4 132
	60.9	1 564	2 334	3 010	3 548
SS面	1.5	-669	-1 027	-1 382	-1 752
	10.8	-1 391	-2 101	-2 790	-3 487
	22.7	-1 733	-2 608	-3 431	-4 231
	30.3	-1 796	-2 694	-3 529	-4 321
	41.8	-1 815	-2 717	-3 544	-4 297
	49.4	-1 624	-2 420	-3 138	-3 763
	60.9	-1 446	-2 137	-2 733	-3 197

区域	加载位置/m	不同形变率的应变值/10^-6
区域	加载位置/m	40%	60%	80%	100%
PS面	1.5	644	966	1 287	1 612
	10.8	1 474	2 246	3 015	3 808
	22.7	1 663	2 528	3 371	4 208
	30.3	1 822	2 767	3 682	4 578
	41.8	1 945	2 945	3 885	4 758
	49.4	1 726	2 602	3 411	4 132
	60.9	1 564	2 334	3 010	3 548
SS面	1.5	-669	-1 027	-1 382	-1 752
	10.8	-1 391	-2 101	-2 790	-3 487
	22.7	-1 733	-2 608	-3 431	-4 231
	30.3	-1 796	-2 694	-3 529	-4 321
	41.8	-1 815	-2 717	-3 544	-4 297
	49.4	-1 624	-2 420	-3 138	-3 763
	60.9	-1 446	-2 137	-2 733	-3 197

叶片展向位置/m	应变值/10^-6
0	738
5.0	1 712
7.3	1 661
10.8	1 440
15.0	1 325
18.8	1 733
22.7	1 870
26.5	1 961
30.3	1 900
34.1	1 730

叶片展向位置/m	应变值/10^-6
0	738
5.0	1 712
7.3	1 661
10.8	1 440
15.0	1 325
18.8	1 733
22.7	1 870
26.5	1 961
30.3	1 900
34.1	1 730

参数	国产	国外
结构	三排滚子轴承	三排滚子轴承
原材料	钢42CrMo-改良	钢42CrMo4
滚子	G20Cr2Ni4A	类同GCr15SiMn
保持架	铝青铜	黄铜
密封条	丁腈橡胶	丁腈橡胶
推力滚动体直径/mm	80×80，共180粒	80×80，共180粒
径向滚动体直径/mm	90×130，共78粒	90×135，共72粒