Results 21 to 30 of about 4,689 (149)

Redundant control method for yaw overload protection of wind turbine [PDF]

open access: yes, 2022
This article first describes the yaw control method of the wind turbine, then analyzes the yaw control strategy of the wind turbine, and finally discusses the reasons for the yaw overload and the redundant control method of overload ...
Chertkov, V., Konapleva, G., Zheng, J.
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Fault Diagnosis Method of Wind Turbines Based on Wide Deep Convolutional Neural Network With Resampling and Principal Component Analysis [PDF]

open access: yes, 2023
Fault diagnosis of wind turbines suffers from less training data and noises. A method based on wide deep convolutional neural network with resampling and principal component analysis was presented for the diagnosis of mechanical faults (that is the main ...
BAO Yanyang, LI Dazi, LIU Zhan
core   +1 more source

新能源发电对电磁观测环境的影响特征

open access: yesDizhen xuebao, 2021
利用天津市徐庄子地震台的电磁观测数据,针对台站周边观测区域内近年来出现的风电和光伏发电设施,通过野外试验测量,从多个角度深入剖析了不同观测环境中电磁观测数据在时间和空间上的变化形态,分别总结了风力发电、光伏发电的建设和运行状态对电磁观测环境干扰的影响特征。结果显示:风力发电机组对电磁观测环境的影响明显小于光伏发电设备,可视为一个干扰点,需规范其与观测设施的距离;若要确保光伏发电设备不影响电磁观测,需要将每个系统视为一个整体,并使二者保持足够大的距离。
Yong Ma, Ning Li, Xuegong Xu, Jinmeng Bi
doaj   +1 more source

Field testing of an in-service wind turbine tower using a laser based remote sensing method [PDF]

open access: yes, 2016
As a special slender structure,a wind turbine tower with a turbine on the top of the structure is sensitive to dynamic loading. Therefore,it is critical to accurately assess the vibrational behaviors of the wind turbine tower. To facilitate field testing
DAI Kao-shan, HUANG Yi-chao, WANG Ying
core   +1 more source

Probabilistic load flow calculation for three-phase unbalanced droop-regulated islanded microgrids based on low-rank approximation method [PDF]

open access: yes, 2020
For the characteristics of unbalanced nodes and constant frequency in the sagging control island microgrid, taking into account its three-phase asymmetry and the influence of uncertainty factors, a three-phase probability trend calculation method based ...
Fu, H.   +4 more
core   +2 more sources

66kV海上风电交流集电方案技术经济性研究 [PDF]

open access: yes全球能源互联网, 2019
35kV交流汇集是目前海上风电场集电系统的通用集电方案。随着对海上风场单位成本降低的追求和技术的发展,海上风机单机容量越来越大。然而,由于35kV海底电缆热极限和通流能力的限制,单机容量的增大使得单根海缆上可连接的风机数目随之减少。随着海上风电场规模的扩大和单机容量的增加,如果仍采用35kV交流集电方案,海底电缆的数目势必增加,电缆投资及相应工程费用和难度也将增大。据此,提出了66kV交流集电方案,并基于一组典型案例,对35kV和66kV海上风电交流集电方案进行了技术经济性比对 ...
蔡蓉   +4 more
doaj   +1 more source

Research on Factors Influencing the Heat Dissipation Performance of Semi-Direct Drive Permanent Magnet Wind Generator [PDF]

open access: yes, 2023
[Introduction] With the development of wind power generation technology, the unit capacity of permanent magnet wind generator is increasing, and the heating power is also increasing.
Desheng MIAO, Di WU, Rui SUN, Wenpeng GE
core   +1 more source

Design and Implementation of Wind Turbine Background Monitoring and Management Platform [PDF]

open access: yes, 2016
随着经济的不断发展,人类对传统的化石资源的开发速度越来越快,地球上的化石资源也越来越匮乏。要想保证能源的可持续利用,保证人们的资源消费需求。节约使用石化能源、开发利用新能源和可再生能源十分关键。而风力发电作为能源当中重要的电力行业,已成为全世界各个国家大力发展的重要新能源之一。 在中国,全国平均风功率密度为100W/m2,风能资源的总储量约为32.26亿kw,现行可供开发的资源共计约10亿kw,其中包含了2.53亿kw陆地风能和7.5亿kw近海风能。风的可利用区域分布广阔,装机数量多 ...
熊菲
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Change in cyclone disaster vulnerability and response in coastal Bangladesh

open access: yesDisasters, Volume 48, Issue 2, April 2024.
The number of deaths owing to tropical cyclones in Bangladesh has significantly reduced. Category 4 Cyclone Gorky in 1991 and Sidr in 2007 caused 147,000 and 4,500 deaths respectively, whereas Category 1 Cyclone Mora in 2017 resulted in six. Face‐to‐face interviews with 362 residents, participant observation, and focus‐group discussions answer a ...
Edris Alam   +4 more
wiley   +1 more source

东山岛与澎湖列岛风电产业合作前景探讨 [PDF]

open access: yes, 2015
发展风电产业是当前世界各国和地区为实现经济发展低碳化而采取的新型产业发展方向之一。福建省东山岛与台湾的澎湖列岛同属常规能源较贫乏而风能资源较丰富的地区。在推进两岸新兴产业合作的进程中,两地可基于彼此的相对竞争优势而开展风电产业合作,进而提升两地在风电产业方面的整合竞争力。2013年度国家社科基金项目“丰富‘一国两制’实践和推进祖国统一研究”(批准号:13&ZD052)资助; 2013年度教育部人文社会科学重点研究基地重大项目“海峡两岸民间社会桥接模式和路径研究”(批准号:13JJD810011 ...
王勇
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