Renewable Energy最新文献

Impact of varying turbulent flow conditions on the tidal turbine blade load fatigue 不同湍流条件对潮汐水轮机叶片负荷疲劳的影响

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-16 DOI: 10.1016/j.renene.2025.123370

Philippe Druault , Benoît Gaurier , Grégory Germain

{"title":"Impact of varying turbulent flow conditions on the tidal turbine blade load fatigue","authors":"Philippe Druault , Benoît Gaurier , Grégory Germain","doi":"10.1016/j.renene.2025.123370","DOIUrl":"10.1016/j.renene.2025.123370","url":null,"abstract":"<div><div>The blade structural fatigue life estimation plays an important role in the manufacturing and operating of wind and tidal turbines. Then identifying the main sources of blade fatigue is of great importance for turbine life predictability. To this end, this paper presents a set of blade-thrust force and blade-root bending moment responses for a scale-model tidal turbine subjected to various unsteady turbulent flow conditions. The influence of the turbulence intensity, the integral length scale and the gaussianity on the blade structural fatigue is then individually investigated. Overall, it is shown that each of these flow characteristics which are intrinsically related, may have a significant impact on blade load fatigue. We then introduce the turbulence parameter taking into account both the integral length scale and the turbulence intensity to better reveal the blade structural fatigue. The non-Gaussian statistics also plays a significant role on blade load. Finally, present results emphasize that it is essential to account for the whole set of the main useful incoming turbulent flow characteristics and also their spatial variations over the rotor sweeping area to conclude on their effects on the turbine structural fatigue.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123370"},"PeriodicalIF":9.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Uncovering the beneficiaries: exploring the impact of new distributed solar energy legislation in Brazil 发现受益者：探索巴西新的分布式太阳能立法的影响

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-16 DOI: 10.1016/j.renene.2025.123474

Amanda Mendes Ferreira Gomes, Gustavo Xavier de Andrade Pinto, Daniel Odilio dos Santos, Andrigo Filippo Gonçalves Antoniolli, Helena Flavia Naspolini, Ricardo Rüther

{"title":"Uncovering the beneficiaries: exploring the impact of new distributed solar energy legislation in Brazil","authors":"Amanda Mendes Ferreira Gomes, Gustavo Xavier de Andrade Pinto, Daniel Odilio dos Santos, Andrigo Filippo Gonçalves Antoniolli, Helena Flavia Naspolini, Ricardo Rüther","doi":"10.1016/j.renene.2025.123474","DOIUrl":"10.1016/j.renene.2025.123474","url":null,"abstract":"<div><div>Photovoltaic (PV) adoption within Brazil's distributed generation (DG) framework has expanded significantly following legislative milestones in 2012, 2015, and 2022, emphasizing the financial and economic effects of net metering. This study analyzes the implications of key regulations (REN 482/2012, Law No. 14,300/2022, and REN 1059/2023) by applying methodologies from the Brazilian Energy Research Company (EPE) to a 2.65 kWp rooftop PV system in southern Brazil. Analysis of 27 utilities demonstrates that consumers operating under Distributed Generation with Net Metering and Grid Compensation (GDII) achieve superior financial performance compared to Full Injection Distributed Generation (GDI) only within specific consumption bands, with advantages observed across nine utilities. Regional disparities are evident, with 66 % of favorable utilities located in the South and Southeast, driven by tariff structures and an 836 % variation in regional rates. Positive net present value (NPV) outcomes for GDII occur between 230 and 310 kWh, with the internal rate of return (IRR) window narrowing to 270–310 kWh. Moreover, higher financial returns are associated with utilities exhibiting lower operational costs, particularly where distribution system charges (TUSDg) and low-voltage maintenance fees (Wire B charges) are minimized. These findings underscore the evolving regulatory landscape's role in promoting equity, sustainability, and PV market expansion.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123474"},"PeriodicalIF":9.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-term effects of liquid nanoparticles on algal growth and photosynthetic biogas upgrading 液体纳米颗粒对藻类生长和光合沼气升级的长期影响

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-14 DOI: 10.1016/j.renene.2025.123467

Bruna Sampaio de Mello , Arnaldo Sarti , Raúl Muñoz

{"title":"Long-term effects of liquid nanoparticles on algal growth and photosynthetic biogas upgrading","authors":"Bruna Sampaio de Mello , Arnaldo Sarti , Raúl Muñoz","doi":"10.1016/j.renene.2025.123467","DOIUrl":"10.1016/j.renene.2025.123467","url":null,"abstract":"<div><div>Photosynthetic biogas upgrading relies on a microalgal–bacterial consortium that simultaneously removes CO<sub>2</sub> and H<sub>2</sub>S from biogas. However, the process still faces a few challenges<strong>.</strong> In this context, the performance of a pilot high-rate algal pond devoted to photosynthetic biogas upgrading and nutrient valorization from real digestate supplemented with carbon-coated zero-valent iron liquid nanoparticles (L-NPs) was evaluated. Additionally, the influence of the biogas flowrate (55, 75 and 95 L d<sup>−1</sup>) on photosynthetic biogas upgrading performance was assessed. The addition of 2 mL L<sup>−1</sup> of L-NPs, combined with intensive biomass harvesting, promoted higher biomass productivity (89 g m<sup>−2</sup> d<sup>−1</sup>) without negatively impacting algal photosynthetic activity or biogas upgrading performance. The presence of soluble organic carbon in the L-NPs suggested that the biostimulation of microalgal growth supported the high algal biomass productivities recorded. At the highest biogas flowrate (75 and 95 L d<sup>−1</sup>), an increased CO<sub>2</sub> and CH<sub>4</sub> content in the upgraded biogas was achieved due to a reduced contact time between the recirculating cultivation broth and the biogas, which minimized the stripping of N<sub>2</sub> and O<sub>2</sub>. Moreover, the biomethane reached CH<sub>4</sub> concentrations of 94.9 % (v/v) and low levels of CO<sub>2</sub> (2.1 %), O<sub>2</sub> (0.4 %), and N<sub>2</sub> (2.6 %) at biogas flowrate of 75 L d<sup>−1</sup>.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123467"},"PeriodicalIF":9.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Short-term wind power forecast with turning weather based on DBSCAN-RFE-LightGBM 基于DBSCAN-RFE-LightGBM的有转向天气的短期风电预报

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-13 DOI: 10.1016/j.renene.2025.123217

Zhenlong Wu , Xinyu Fan , Guibin Bian , Yanhong Liu , Xiaoke Zhang , YangQuan Chen

{"title":"Short-term wind power forecast with turning weather based on DBSCAN-RFE-LightGBM","authors":"Zhenlong Wu , Xinyu Fan , Guibin Bian , Yanhong Liu , Xiaoke Zhang , YangQuan Chen","doi":"10.1016/j.renene.2025.123217","DOIUrl":"10.1016/j.renene.2025.123217","url":null,"abstract":"<div><div>At present, the wind power prediction technology is becoming more and more mature, however, the turning weather brings a decrease in prediction accuracy due to its suddenness and instability. In this paper, a wind power prediction method considering the turning period and non-turning period respectively is proposed to weaken the adverse effects caused by turning weather. Firstly, the prediction effects of multiple models are compared, density-based spatial clustering of applications with noise (DBSCAN) is selected as the outlier processing method, recursive feature elimination (RFE) is used as the feature selection method, and Light gradient boosting machine (LightGBM) is used for prediction. The combined prediction method based on DBSCAN-RFE-LightGBM can reduce the influence of abnormal data and redundant features and improve the prediction effect. Then, the sliding window is set to detect the turning period. Considering that the turning weather is an emergency and does not happen frequently, the amount of data is small, which leads to the inability to train the model well. Generative adversarial networks (GAN) are applied to expand the turning period data. The LightGBM is trained and predicted by using the expended turning period data. Finally, the time-division prediction results are merged. Using the data collected from wind farms for short-term power prediction experiments, the time-segment prediction method proposed in this paper with GAN reduces MAE by 1.913 and RMSE by 3.351 on a single unit compared with the non-differentiated period.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123217"},"PeriodicalIF":9.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced photocatalysis efficiency of flower-like Ni/ZnIn2S4 coupling with supplying-hydrogen alcohols to catalyze lignin β-O-4 models into aromatic monomers 花状Ni/ZnIn2S4与供氢醇偶联催化木质素β-O-4模型生成芳香单体的光催化效率提高

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-13 DOI: 10.1016/j.renene.2025.123428

Xuele Geng , Baoju Wang , Yun Jia , Pengrui Zhang , Jiyuan Xu , Ning-Ning Zhang , Jian-Ping Zou , Kaiqiang Jing , Hongyou Cui , Hongzi Tan

{"title":"Enhanced photocatalysis efficiency of flower-like Ni/ZnIn2S4 coupling with supplying-hydrogen alcohols to catalyze lignin β-O-4 models into aromatic monomers","authors":"Xuele Geng , Baoju Wang , Yun Jia , Pengrui Zhang , Jiyuan Xu , Ning-Ning Zhang , Jian-Ping Zou , Kaiqiang Jing , Hongyou Cui , Hongzi Tan","doi":"10.1016/j.renene.2025.123428","DOIUrl":"10.1016/j.renene.2025.123428","url":null,"abstract":"<div><div>Owing to the fussy depolymerization conditions and the limited photocatalytic efficiency, enhancing lignin valorization into aromatic monomers still remains challenging. Herein, the combination of photocatalyst optimization and solvent effect was reported to efficiently scissor the C<sub><em>β</em></sub>-O bond in lignin <em>β</em>-O-4 model (2-phenoxy-1-phenylethanol, PP-ol) into ketones and phenols. The doped Ni species in ZnIn<sub>2</sub>S<sub>4</sub> acting as electron-trapping sites inhibited the recombination of photogenerated carriers, leading to an enhanced photo-quantum efficiency. During the generation of 2-phenoxy-1-acetophenone (PP-one), the key intermediate of ·C<sub><em>α</em></sub> radical was formed, which significantly decreased the dissociation energy of C<sub><em>β</em></sub>-O bond to 66.9 kJ/mol. The competition between hydrogenolysis and dehydrogenation for these ·C<sub>α</sub> radicals determined the products distribution of PP-one, phenol and acetophenone. Solvent effect played an important role in the above process. The concentration of atomic hydrogen species was highly increased assisted with EtOH as supplying-hydrogen agent, promoting the hydrogenolysis of C<sub><em>β</em></sub>-O bonds in ·C<sub>α</sub> radicals to aromatic monomers rather than their further dehydrogenation to PP-one. Based on the structure characterization, trapping and control experiments, the photocatalytic mechanism for lignin models depolymerization was proposed. Current work provides a simple and universal method in combination with photocatalyst optimization and solvent effect to accomplish the lignin valorization under solar drive.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123428"},"PeriodicalIF":9.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on source-load uncertainty optimal scheduling based on a hybrid robust multi-interval optimization method 基于混合鲁棒多区间优化方法的源负荷不确定性优化调度研究

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-13 DOI: 10.1016/j.renene.2025.123316

Zhuang Zhao , Jiahui Wu , Bo Wang , Rui Wang

{"title":"Research on source-load uncertainty optimal scheduling based on a hybrid robust multi-interval optimization method","authors":"Zhuang Zhao , Jiahui Wu , Bo Wang , Rui Wang","doi":"10.1016/j.renene.2025.123316","DOIUrl":"10.1016/j.renene.2025.123316","url":null,"abstract":"<div><div>The new power systems(NPS) play an important role in enabling the efficient use of clean energy. In order to improve the operation economy, reliability and efficient consumption of renewable energy of NPS, a hybrid multi-interval robust optimization model was proposed. First, the model takes into account the improved thermal power flexible conversion energy cost model, and designs the output efficiency interval model of wind farm and photovoltaic power station considering the impact of equipment maintenance and failure. Compared with traditional models, these models can more accurately reflect the energy consumption cost and actual output of power supply equipment. Secondly, a hybrid multi-interval robust optimization model is proposed to improve the conservatism of traditional interval optimization methods. In addition, in order to improve the solving efficiency, this paper introduces the adaptive compression particle swarm optimization algorithm to overcome the problem that the traditional optimization algorithm is easy to fall into the local optimal solution. Finally, the IEEE30-node system is taken as an example for simulation verification. The results show that the proposed method can effectively reduce the adverse effects caused by the uncertainty of source and load, and improve the absorption rate of wind power and photovoltaic.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123316"},"PeriodicalIF":9.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on stable hydrogen production by indirectly solar thermal methanol steam reforming 间接太阳能热甲醇蒸汽重整稳定制氢的研究

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-13 DOI: 10.1016/j.renene.2025.123451

Shun Liu , Wantong Wang , Chao Xu , Xiaoze Du

{"title":"Study on stable hydrogen production by indirectly solar thermal methanol steam reforming","authors":"Shun Liu , Wantong Wang , Chao Xu , Xiaoze Du","doi":"10.1016/j.renene.2025.123451","DOIUrl":"10.1016/j.renene.2025.123451","url":null,"abstract":"<div><div>The indirectly heated solar reactor can eliminate the effect of fluctuating solar radiation on the reactor for continuous and stable hydrogen production. In order to investigate the effects of different heat transfer fluids and flow arrangements on reactor performance, this paper first established a three-dimensional numerical model to analyze the heat and mass transfer process in the indirectly heated reactor. Solar thermal oil (STO), which has both good fluidity and thermal storage properties, is more suitable for the indirectly heated methanol steam reforming reactor than molten salt and hot air. The reactor under counter-flow arrangement achieved higher methanol conversion and higher thermal efficiency than under co-flow arrangement. Afterwards, based on the indirectly STO heated reactor with counter-flow arrangement, the effects of STO inlet temperature, weight hourly space velocity (<em>WHSV</em>), molar ratio of steam to methanol (<em>S/C</em>) on methanol conversion, hydrogen production rate, and CO selectivity were further experimentally analyzed. Also, the operating parameters were optimized by Analysis of Variance method. The results indicated that increasing the STO inlet temperature and <em>S/C</em> as well as decreasing the <em>WHSV</em> and catalyst particle size both improved methanol conversion. Compared to other factors, STO inlet temperature had the largest significance on the reactor performance responses. Under optimal condition with STO inlet temperature of 553K, <em>WHSV</em> of 1.78 h<sup>−1</sup> and <em>S/C</em> of 1.3, the reactor obtained methanol conversion of 92.15 %, hydrogen production rate of 53.87 ml min<sup>−1</sup>∙g<sup>−1</sup> and CO selectivity of 5.80 %.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123451"},"PeriodicalIF":9.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

2D/2D ReS2/CdS nanosheets-on-nanoribbon heterostructure for highly efficient H2 evolution under visible light irradiation 二维/二维ReS2/CdS纳米片-纳米带异质结构在可见光下高效析氢

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-13 DOI: 10.1016/j.renene.2025.123456

Xing-Liang Yin , Da-Qiang Liu , Lei-Lei Li , Bing Sun , Yan-Lan Wang

{"title":"2D/2D ReS2/CdS nanosheets-on-nanoribbon heterostructure for highly efficient H2 evolution under visible light irradiation","authors":"Xing-Liang Yin , Da-Qiang Liu , Lei-Lei Li , Bing Sun , Yan-Lan Wang","doi":"10.1016/j.renene.2025.123456","DOIUrl":"10.1016/j.renene.2025.123456","url":null,"abstract":"<div><div>Solar-driven water splitting is a promising renewable method for producing green H<sub>2</sub>. However, its efficiency remains insufficient for practical applications due to significant charge recombination. To address this issue, strategies involving morphology modulation and heterostructure construction were employed to synthesize a novel 2D/2D ReS<sub>2</sub>/CdS nanosheets-on-nanoribbon heterostructure. In this structure, the CdS nanoribbon, characterized by a wide and short charge transfer path and high crystallization, was first fabricated using a mild solvothermal approach, demonstrating potential to retard bulk charge recombination. Additionally, the well-defined heterostructure, promoting charge transfer and separation across interface, significantly inhibits surface charge recombination. As a result, the ReS<sub>2</sub>/CdS heterostructure exhibits a state-of-the-art H<sub>2</sub> generation rate of 150.1 mmol g<sup>−1</sup> h<sup>−1</sup> which is <em>ca.</em> 115.5 times higher than pristine CdS far exceeding other similar catalytic systems and most CdS-noble metal photocatalysts. Combing two strategies to suppress charge recombination in this manuscript provides new insights into the development of low cost but high-performance catalysts for renewable energy generation.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123456"},"PeriodicalIF":9.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental performance comparison of Ducted and Freestream hydrokinetic turbines 导管式和自由流水轮机的试验性能比较

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-13 DOI: 10.1016/j.renene.2025.123308

Kartik Naik , Marco Mangano , Bradford G. Knight , Sabet Seraj , Yingqian Liao , Jeongbin Park , Yulin Pan , Joaquim R.R.A. Martins , Kevin J. Maki , Jing Sun

{"title":"Experimental performance comparison of Ducted and Freestream hydrokinetic turbines","authors":"Kartik Naik , Marco Mangano , Bradford G. Knight , Sabet Seraj , Yingqian Liao , Jeongbin Park , Yulin Pan , Joaquim R.R.A. Martins , Kevin J. Maki , Jing Sun","doi":"10.1016/j.renene.2025.123308","DOIUrl":"10.1016/j.renene.2025.123308","url":null,"abstract":"<div><div>Hydrokinetic energy’s high energy density and predictable nature make it an effective and reliable renewable resource. Ducted hydrokinetic turbines (HKT) offer benefits such as improved flow conditioning and higher power efficiency for the same reference area compared to an equivalent conventional freestream turbine. We designed and constructed an HKT system to characterize the performance of freestream and ducted turbines at various speeds and blade pitch angles in a state-of-the-art tow tank. When comparing the respective optimal blade pitch settings, the ducted turbine’s power efficiency is 19% higher than that of the freestream one. Our ducted turbine measured a peak power coefficient of <span><math><mrow><msub><mrow><mi>C</mi></mrow><mrow><mi>P</mi></mrow></msub><mo>=</mo><mn>0</mn><mo>.</mo><mn>47</mn></mrow></math></span> despite unfavorable Reynolds number effects. This system’s power and thrust characterization indicates that ducted turbines, with an improved design and more favorable operating conditions, would likely exceed the measured <span><math><mrow><msub><mrow><mi>C</mi></mrow><mrow><mi>P</mi></mrow></msub><mo>=</mo><mn>0</mn><mo>.</mo><mn>47</mn></mrow></math></span>, laying the ground for further design optimization studies.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123308"},"PeriodicalIF":9.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143948534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear energy sink for vibration reduction in offshore wind turbines under rotating blade-wind-wave loads: Parameter selection and test verification 海上风力机旋转叶片-风波载荷非线性减振能量汇：参数选择与试验验证

IF 9 1区工程技术

Renewable Energy Pub Date : 2025-05-13 DOI: 10.1016/j.renene.2025.123435

Weijie Zeng , Chuanrui Guo , Wei-Xin Ren , Yanliang Du

{"title":"Nonlinear energy sink for vibration reduction in offshore wind turbines under rotating blade-wind-wave loads: Parameter selection and test verification","authors":"Weijie Zeng , Chuanrui Guo , Wei-Xin Ren , Yanliang Du","doi":"10.1016/j.renene.2025.123435","DOIUrl":"10.1016/j.renene.2025.123435","url":null,"abstract":"<div><div>As offshore wind turbines (OWTs) evolve towards larger sizes, they become more susceptible to significant vibrations under the complex load conditions such as winds, waves, currents and blade rotation, accelerating structural fatigue damage and impacting both power generation efficiency and operational safety. This paper is aimed at investigating the vibration reduction capabilities of Nonlinear Energy Sink (NES) for OWTs under rotating blade-wind-wave load conditions. A 1:80 scale model of the 5 MW monopile OWT is fabricated in the laboratory. The corresponding parameters of NES and Tuned Mass Damper (TMD) are selected by the optimization for the first order natural frequency of the tower. A free-decay test and vibration tests on the scale model integrated with NES and TMD separately under different rotating blade-wind-wave loadings. The results have shown that NES exhibits superior robustness to variations in damper stiffness compared to TMD. NES can also reduce other vibrational frequency components induced by wave excitation and blade flapwise due to the nonlinear and broadband vibration frequency characteristics of NES. It is demonstrated that NES provides overall better vibration reduction capabilities than TMD in multi-modal vibration structures. This research offers valuable insights into the vibration reduction of OWTs under complex operational conditions.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"251 ","pages":"Article 123435"},"PeriodicalIF":9.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144083949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0