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大规模深远海风电送出方式比较及集成设计关键技术研究 [PDF]

open access: yes全球能源互联网, 2019
海上风电由于具有风能稳定、密度大等优点,在世界范围内已逐渐发展成为风力发电的重要形式。在深远海域,风能资源更丰富,风湍流强度与海面粗糙度较近海更小,因此深远海风电发展将成为未来海上风电发展的主要趋势。首先,阐述了海上风电深远海化发展趋势,总结了3种海上风电的并网方式及相应的拓扑结构、主要运行特点。其次,考虑深远海风电的特殊性,重点分析了集电系统可靠性评估与设计、海上升压站设计与换流站设计等3方面的发展趋势。最后,对亟待开展的研究方向、需求进行说明,为深远海风电发展提出建议。
王秀丽, 赵勃扬, 黄明煌, 叶荣
doaj   +1 more source

考虑雷电过电压的风电机组拓扑结构优化

open access: yesDianci bileiqi, 2021
风力发电机遭受雷击时,塔筒内控制电缆、塔基处以及箱式变压器低/高压侧都会出现过电压,且过电压还会通过集电电缆和联合接地装置传到其他风电机组。为研究雷击风电场时引起的暂态电压,建立了包含风力发电机、集电电缆、箱式变压器的等效模型。考虑了雷电流参数、风力发电机接地电阻大小及风电场拓扑结构对风电场过电压影响。结果表明:单台风电机组遭受雷击的情况下,风电机组过电压值与雷电流幅值成正比,且波前时间为8.0μs和20.0μs时,雷电流幅值对控制电缆缆芯过电压影响很小;风电机组过电压值与波前时间成反比 ...
罗永志   +5 more
doaj  

Climatic Long Term Trend and Prediction of the Wind Energy Resource in the Gwadar Port [PDF]

open access: yes, 2017
利用欧洲中期天气预报中心的ERA-Interim海表10m风场资料,计算巴基斯坦瓜达尔港的风能资源近36年(1979—2014年)期间的历史变化趋势,并利用线性回归和BP神经网络两种方法,对该港的风能资源进行长期年度预测,得到以下结果。1)瓜达尔港夏季的风能资源比冬季丰富,且夏季的稳定性明显好于冬季。2)近36年期间,风能密度、有效风速频率和100W/m2以上能级频率分别以?0.78W/(m2·a),?0.21%/a和?0.22%/a的速度逐年显著递减,且该趋势主要体现在夏季,冬季无显著变化趋势 ...
郑崇伟, 陈璇, 高悦
core   +1 more source

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

基于电力现货市场仿真的海上风电接入对广东省电力行业碳减排影响评估 [PDF]

open access: yes全球能源互联网, 2020
为应对全球气候变化,电力行业低碳化能源转型迫在眉睫。针对2019—2028年广东省的能源规划,搭建广东省电力系统简化模型,依据安全约束经济调度原理仿真电力现货市场,评估大规模海上风电的接入对广东省电力行业碳排放的影响。仿真结果表明,按广东省海上风电发展规划接入海上风电后:电力行业总碳排量和系统碳排放强度均有不同程度的降低;海上风电减排贡献百分比逐年提升,最高可达20%;A类机组碳排放量和碳排放强度基本不变;B类机组相关碳排放数据变化趋势与广东省基本一致;对于接入海上风电场的节点 ...
宋怡, 林晨韵, 梁高琪, 赵俊华
doaj   +1 more source

Risks of Time and Chronology as an Underpinning Infrastructure for Critical Systems: Emerging Chronorisks and Chronosecurity Needs

open access: yesJournal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.
ABSTRACT Time and chronology form the invisible architecture upon which modern civilization depends, governing synchronization across markets, power grids, communication networks, transportation, and defense. Yet, this shared temporal framework, engineered through atomic clocks, satellites, and digital synchronization, faces growing vulnerabilities ...
Bilal M. Ayyub
wiley   +1 more source

Securing Bangladesh's Nuclear Future: Is the Regulated Asset Base Model the Answer to Address Project Corruption?

open access: yesJournal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.
ABSTRACT Bangladesh's goal of achieving high‐income status by 2041 requires dependable, low‐emission, and affordable energy. With near‐universal grid coverage and increasing demand, nuclear energy is a strategic asset for long‐term baseload supply. However, the existing financing model, typified by the country's most expensive $12.65 billion Rooppur ...
Hafiz Ahmed
wiley   +1 more source

Design and Implementation of Wind Power Production Real-time Supervisory Information System [PDF]

open access: yes, 2015
本文阐述了SIS的基本概念,分析SIS在电力企业信息化中的地位及国内外 的研究动态,着重研究SIS在风力发电企业中的应用,同时结合目前风力发电生 产信息的特点和需求,设计解决方案,并加以实现为其构建实时信息监测系统。 论文介绍了跨浏览器、跨系统的多媒体JAVA技术、Delphi技术、数据可视 化、网络拓扑设计等关键技术。重点讨论了SIS总体设计方案,包括系统设计的 原则,系统设计的总体要求、系统功能的实现、系统软件架构和网络结构等。系 统实现了实时数据的深层次加工和提炼,为决策分析提供辅助信息 ...
朱文杰
core  

Participation Disenchants: How Online Political Participation Decreases Online Political Efficacy in China

open access: yesRegulation &Governance, Volume 20, Issue 1, Page 35-63, January 2026.
ABSTRACT Existing literature largely agrees that authoritarian regimes establish channels for political participation to gather valuable information on citizens' anti‐regime sentiments and policy preferences and to supervise lower‐level bureaucrats and firms.
Anton Bogs
wiley   +1 more source

Managing Risk, Reinforcing Environmental Racism: The Biopolitics of Pesticide Regulation in California Agriculture

open access: yesReview of Policy Research, Volume 42, Issue 6, Page 1509-1524, November 2025.
ABSTRACT This paper provides a retrospective on California's oversight of 1,3‐dichloropropene (1,3‐D). It utilizes archival documents, including internal memos, emails, and risk assessments, to demonstrate how the state's Department of Pesticide Regulation consistently expanded allowable 1,3‐D use while presenting each policy change as scientifically ...
Kaitlyn Alvarez Noli
wiley   +1 more source

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