Results 31 to 40 of about 158 (93)
全球能源互联网, 2019 海上风能资源的有效测量及合理评估是项目开发的基础。目前，海上风能资源测量及评估方面的研究及规范较少，且其测量环境与陆地差异较大，导致测量和评估有一定难度。适宜的测量高度以及合理的支臂朝向设置是获得有效测量数据的关键。海上测风塔测量环境应与风电场相似，需结合地形具体分析岛礁测风塔的测量高度。为便于塔影效应分析，建议在海上测风塔垂直主导风向的支臂安装两套风速仪。塔影分析与50年一遇最大风速计算是海上风能资源评估的重要问题。考虑到塔体结构差异，海上测风塔塔影效应分析方法与陆地测风塔有所不同 ...
陆艳艳, 刘树洁, 王涛
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Gaoya dianqi, 2022 海上风电场海缆路径布置形式多样,不同路径形式对海缆综合成本影响较大。文中根据海上风电场电气组网特征,研究海缆布局优化设计方法,建立海缆建设成本和海缆运行损耗成本的优化模型,采用退火算法优化集电海缆拓扑结构,并考虑输电海缆路由结构,以海缆综合成本最低为目标,在全风电场范围内利用MATLAB插值拟合函数构建海缆综合成本与升压站位置的非线性函数关系,据此计算综合成本最小的目标升压站位置,从而确定海缆优化布置方案。通过案例计算,得到了良好的海缆优化布局方案,海缆综合成本有较大降低。结果表明 ...
王辉, 付凌云, 孙世民
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柔直电网孤岛运行方式下换流阀闭锁时交流耗能装置投切仿真研究 [PDF]
全球能源互联网, 2019 海上风能资源的有效测量及合理评估是项目开发的基础。目前，海上风能资源测量及评估方面的研究及规范较少，且其测量环境与陆地差异较大，导致测量和评估有一定难度。适宜的测量高度以及合理的支臂朝向设置是获得有效测量数据的关键。海上测风塔测量环境应与风电场相似，需结合地形具体分析岛礁测风塔的测量高度。为便于塔影效应分析，建议在海上测风塔垂直主导风向的支臂安装两套风速仪。塔影分析与50年一遇最大风速计算是海上风能资源评估的重要问题。考虑到塔体结构差异，海上测风塔塔影效应分析方法与陆地测风塔有所不同 ...
杜晓磊 +8 more
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Analysis of the Influence of Common Mode Current on Wind Turbine [PDF]
, 2023 [Introduction] The objective is to solve the injury and destruction of the wind turbine equipment caused by the common mode interference current and avoid the long-term operation of the wind turbine with faults and the damage to the large components of ...
Xiaofeng WANG
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Exploration for effects of acoustic stimulus on movement behavior and HSP70 expression of two kinds of marine crustaceans [PDF]
, 2016 水下噪声会潜在的引起海洋生物紧张，分散和掩蔽这些海洋生物重要的声信号，进而对海洋生物的行为和生存造成影响。近几十年来，随着人类社会的不断发展，人们将发展目光投向了占有全球71%面积的海洋。伴随海洋事业的快速发展，海洋工程噪声对海洋生物的影响引起了人们的极大关注。虽然目前已有不少研究成果评估了水下工程噪声对海洋生物的影响，这些噪声包括轮船、打桩、地震勘探以及风电场等水下噪声，表明海洋工程等人为噪声对鱼类以及海洋哺乳动物都将造成了不同程度的影响和伤害。但是 ...
周韦峥嵘
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Brief Analysis of the Development of Mechanical Research and Trends of Grouted Connection of Offshore Wind Turbine [PDF]
, 2023 [Introduction] The connection between offshore wind turbine foundation and superstructure is usually made by grouting. It is crucial to ensure the safety of the grouted connections, and the study of grouted connections is always a key and difficult point.
Kan LIAO, Ke CHEN, Li ZHANG
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Dianci bileiqi, 2023 随着海上风电场规模的增加，35 kV集电系统的海缆截面和长度也不断增加，由于海上风电35 kV集电系统与陆上35 kV配电网中性点接地方式不同，但其海缆绝缘厚度与陆缆标准一致，导致其绝缘水平有较大裕度，造成一定资源的浪费。以某海上风场35 kV集电系统为例，搭建了3条集电线路仿真模型，计算了35 kV海缆在合闸/切除集电线路、合闸/切除箱式变压器等操作工况下和弧光接地下的过电压水平，比较海上风电集电系统中性点在不同接地方式下，不同工况下35 kV海缆在所承受的过电压水平的差异，结果标明：合闸 ...
黄涛 +6 more
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Overview of Current Situation and Trend of Offshore Wind Power Development in China [PDF]
Under the carbon peak goal and carbon neutral vision, offshore wind power has made great progress in China in recent years. The current development status and future planning of offshore wind power in China were analyzed, summarizing the installed ...
MA Kuichao +5 more
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Very Short-Term Wind Direction Multistep Forecast Based on VMD-LSTM [PDF]
, 2023 [Introduction] In order to accurately forecast the wind direction in the next 4 hours, a very short-term wind direction multistep forecast algorithm based on VMD-LSTM（Variational Mode Decomposition-Long Short-Term Memory） is proposed.
Desheng MIAO +5 more
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Extraction Method of Offshore Wind Power Output Characteristic Curve Based on Gaussian Mixture Model and Its Application in Electric Quantity Balance [PDF]
, 2023 [Introduction] To reduce fossil energy consumption and mitigate environmental pollution, offshore wind power is one of the effective ways to solve the problem.
Jiachang LIU, Shichao WANG, Zhanzhi LIU
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