Results 31 to 40 of about 4,165 (161)

海表温度对中法海洋卫星散射计测量的影响

open access: yesKongjian kexue xuebao, 2023
卫星散射计通过测量海表粗糙度反演全球海面风场。对于Ku波段散射计,海表粗糙不仅和海面风场相关,还受海表温度的二阶效应调制。定量研究了海表温度对中法海洋卫星(CFOSAT)散射计(CSCAT)反演风速和后向散射测量的影响。结果表明,CSCAT两种极化方式测量的后向散射系数都会受到海表温度的影响,但是垂直极化中低入射角(θ < 36°)测量的后向散射系数几乎不随温度变化。因此CSCAT的风速偏差也随海表温度的变化而变化,且随着入射角的增大和风速的减小,海表温度对风速偏差的影响程度增大 ...
赵 晓康   +3 more
doaj   +1 more source

Very Short-Term Wind Direction Multistep Forecast Based on VMD-LSTM [PDF]

open access: yes, 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
core   +1 more source

Research on Design Optimization of Offshore Booster Stations [PDF]

open access: yes, 2023
[Introduction] In recent years, China has put into operation a large number of offshore booster stations and accumulated rich experience in the construction and operation of offshore booster stations.
Binrui ZHANG, Lei SU, Xiaogang WANG
core   +1 more source

远海风电柔性直流送端交流系统故障协调控制 [PDF]

open access: yes全球能源互联网, 2023
为提升远海风电对称双极柔性直流送端交流系统单相接地故障和两相短路故障工况(第一类故障)下的功率输送能力,以及三相接地故障工况(第二类故障)的交流电压稳定性,提出海上换流站协调控制策略。首先分析了第一类故障的过电压和极间环流产生机理,以及第二类故障的交流电压失稳机理。在此基础上,提出了功率平衡控制策略和输出有功电流策略。第一类故障下定电压控制极采用限压策略,功率平衡控制策略抑制极间环流,增大定电压控制极的功率,减少了交流电压控制器响应时间,提升了功率输送能力。第二类故障工况下 ...
彭忠   +4 more
doaj   +1 more source

Research for Vertical Bearing Characteristics of Top Grouting Jacket Pile Foundation in Clay Foundation [PDF]

open access: yes, 2023
[Introduction] The top grouting jacket pile foundation is a new type of foundation application for offshore wind power jackets on clay seabed. Since the grouting section can bear some loads, its stress and deformation mechanism is significantly different
Bo LIU, Can ZHENG, Hexing SONG, Lu XU
core   +1 more source

Research on lightning transient distribution characteristics of cable-stayed bridges [PDF]

open access: yes, 2023
Bridges are usually located at the junction of land and water, where the surrounding area is open terrain, making them to be easily damaged by lightning strikes.
Dajun XU   +4 more
core   +1 more source

漂浮式风电平台动态海缆用绝缘材料性能研究

open access: yesGaoya dianqi, 2022
近年来,利用海上漂浮式风电平台开发风电资源逐渐成为能源开发的重要发展方向之一。动态海缆作为风机与静态海底电缆间的连接装置,是海上能源输送系统的关键设备。在动态海缆运行过程中,其往往面临着电—热—机械等多种失效因素,这对动态海缆的关键材料尤其是绝缘材料的性能提出了更高的要求。文中针对一种超纯净均聚抗水树交联聚乙烯材料进行研究,结合动态海缆可能面临的失效风险因素,对绝缘材料的机械性能、电气性能及耐温性能进行测试,验证材料作为动态海缆绝缘材料的适用性。
康佳   +5 more
doaj  

Research on the Engineering Geological Model and Its Application for Offshore Wind Power Development and Construction [PDF]

open access: yes, 2023
[Introduction] Speeding up the offshore wind power construction and development is of great significance to promoting the adjustment of China's energy structure. China is accelerating the process of its wind power development in the entire offshore area,
Feng LIANG   +4 more
core   +1 more source

Experimental study on the hydrodynamic characteristics of a combined structure of offshore wind turbine jacket and net cage [PDF]

open access: yes
ObjectiveThis paper proposes a novel structure that combines an offshore wind turbine jacket and aquaculture net cage, and its hydrodynamic characteristics are investigated.
Biao QIU   +5 more
core   +1 more source

Research on the impact of underwater noise radiated from offshore wind farm on Chinese white dolphin(Sousa chinensis) [PDF]

open access: yes, 2014
近年来,随着“低碳经济”理念被人们逐步接受并倡导,加大清洁能源开发力度成为未来能源的发展方向。在清洁能源的开发和利用中,风能利用技术相对成熟,而海上风能利用是其重要组成部分。但在海上风电场的建设期和运营期,,尤其是在风机桩基固定过程中进行的冲击式打桩作业,会向水中辐射高强度、瞬发性、宽频带的脉冲信号。研究表明,冲击式水下打桩噪声会影响海洋哺乳动物的行为,掩蔽其声学信号,甚至造成其听觉损伤。 中华白海豚(Chinesewhitedolphin,Sousachinensis)是我国国家一级保护动物 ...
汪启铭
core  

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