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2021-04-20 瀏覽數(shù):1797
Newly established German Voodin Blade Technology GmbH contacted WINDnovationwith the idea to make rotor blades for the n
Newly established German Voodin Blade Technology GmbH contacted WINDnovation with the idea to make rotor blades for the next generation wind turbines mainly from wood. While it sounded strange in the beginning, the engineers looked a little deeper and found charming aspects:
德國(guó)Voodin Blade 技術(shù)股份有限公司是一家剛剛加入風(fēng)電行業(yè)的新公司。不久前,WINDnovation有幸收到來自Voodin Blade 的合作邀請(qǐng),共同進(jìn)行由木材為主要材料的下一代風(fēng)電葉片設(shè)計(jì)工作。起初,這一想法似乎有些出格,但在我們的工程師進(jìn)行了進(jìn)一步研究后,發(fā)現(xiàn)這一想法的如下亮點(diǎn):
Recycling, one of the biggest headaches of glass or carbon fiber reinforced rotor blades, will not be an issue anymore.
The relative stiffness (E-modulus/density) of the selected wood is nearly identical to UD glass fiber.
The structural damping properties are much better than for composites.
The raw material is very available at a low price.
The final surface will be prepared by positive milling, so no moulds will be needed anymore. This is of special interest for the production of replacement blades where in many times production moulds are simply not available anymore.
玻纖或碳纖增強(qiáng)材料風(fēng)電葉片的一大不足之處是其不可循環(huán)性,而木制葉片則可以解決這一問題;
所選用木材的相對(duì)剛度(E-模量/密度)幾乎與UD玻纖的剛度一樣;
所選木材的結(jié)構(gòu)阻尼性能遠(yuǎn)優(yōu)于復(fù)合材料;
木材原材料供應(yīng)充足且價(jià)格相對(duì)較低;
葉片表面后處理使用順銑,因此葉片生產(chǎn)將不再需要模具。這一點(diǎn)對(duì)于更換老舊葉片非常重要,因?yàn)楹芏嘁呀?jīng)停產(chǎn)的葉片,其生產(chǎn)模具已經(jīng)不存在或不可用。
For demonstrating the technology, currently a 20m blade is under development, which will run through all production steps, which are expected to be suitable for manufacturing of very large blades in the Multi-MW class. According to the plans, a fully sensor equipped first set will be installed in summer 2021 in Germany and be operated and closely monitored for at least one year.
作為該技術(shù)的示范項(xiàng)目,我們目前正在開發(fā)一款20米長(zhǎng)的葉片,開發(fā)工作涵蓋所有的生產(chǎn)步驟。該技術(shù)預(yù)計(jì)可以適用于制造兆瓦級(jí)的超大型葉片。根據(jù)計(jì)劃,Voodin Blade將于2021年夏季在德國(guó)安裝并運(yùn)行第一套完全配備傳感器的使用木制葉片的風(fēng)電機(jī)組,后續(xù)并進(jìn)行為期至少一年的密切監(jiān)測(cè)。
It shall be mentioned that not all questions with regard to rotor blades made from wood are solved:
Selection and application of the surface coating to make the blades last 20 or 25 years will need some research.
To protect the leading edges from erosion will need same research and potentially tests.
According to the current estimate the blades will be some 20% heavier than their glass fiber equivalent, some of the load increase resulting from the mass might be compensated by the higher structural damping, this is subject to further investigations.
當(dāng)然,對(duì)于木制葉片技術(shù),也還存在一些尚未解決的問題:
使用何種涂層材料以及如何使用才能使木制葉片可以運(yùn)行20或25年還需進(jìn)一步研究;
前緣防侵蝕保護(hù)同樣需要進(jìn)一步研究或測(cè)試;
根據(jù)目前的估計(jì),同一款葉片,木質(zhì)葉片的重量將比玻纖制葉片約重20%,由質(zhì)量增加帶來的載荷增加可能會(huì)由更高的結(jié)構(gòu)阻尼補(bǔ)償,這一點(diǎn)還有待進(jìn)一步研究。
Voodin Blade Technology and WINDnovation will closely cooperate on finding good solutions to make the wooden blade technology mature. We will to publish updates every now and then talking about the latest achievements!
Voodin Blade Technology與WINDnovation將繼續(xù)開展密切合作,尋找最佳解決方案,使木制葉片技術(shù)走向成熟。我們也會(huì)不定時(shí)更新我們的研發(fā)進(jìn)展,分享我們的最新成果!
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