Results 1 to 10 of about 158 (93)
考虑谐波谐振和电压稳定的海上风电场无功优化配置方法 [PDF]
全球能源互联网, 2023 海上风电经长距离高压交流海底电缆接入电网，海底电缆容升效应显著，容易引起工频过电压，同时电力电子器件和线路电容引起的谐波谐振问题也严重影响着电网电能质量，因此进行海上风电场无功配置时应充分考虑过电压和谐波谐振问题。针对上述问题，建立了海上风电场谐波模型，对海上风电场的谐波模态阻抗进行扫描，继而分析海上风电场的谐振特性；然后研究了海上风电场无功特性，计算各种发电出力水平和并网点电压下的风电场无功缺额；接着以降低综合成本为目标，以静态电压稳定裕度、最小补偿容量、谐波谐振及过电压为约束 ...
杜婉琳*, 梅桂华, 马明, 王玲
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基于3D扫描雷达实测数据的海上风电场尾流特性研究 [PDF]
全球能源互联网, 2023 为有效优化实际业务中海上风电场的机组排布方案设计，降低尾流电量损失，在江苏某海上实际运行风电场采用3D扫描雷达进行实地尾流观测实验，分析独立尾流、半尾流和全尾流三种工况下机组的尾流长度、尾流宽度及尾流深度等尾流特性。研究表明，独立尾流工况下机组尾流下游方向11D～12D（D为叶轮直径）距离处风速变化趋平，尾流影响减弱，机组尾流影响长度在11D左右；近尾流区内，全尾流工况机组的风速衰减较独立尾流和半尾流工况机组明显增大，远尾流区三种工况变化趋势一致，尾流宽度均在3D左右，呈“双高斯”或“凹型”分布特征 ...
刘树洁 +4 more
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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]
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
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Collaborative Control Method for Offshore Wind Farms with Friendly Access to Hydrogen Energy Systems During Typhoons [PDF]
, 2023 [Introduction] With the steady progress of the carbon peaking and carbon neutrality goals, more and more distributed renewable energy is connected to the power grid.
Enyan XIE +4 more
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Corrosion Analysis and Corresponding Countermeasures of Steel Structures in Offshore Wind Farms [PDF]
, 2023 [Introduction] Strategies for preventing corrosion in steel structures at offshore wind farms, derived from a comprehensive study on the environmental conditions, symptoms, and mechanisms of corrosion in such structures, as well as an analysis on various
Chuqi XU, Dongsheng TANG, Hongqing WANG
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Experimental Research on Capacity Expansion of Large-Scale Offshore Wind Farm Under Multiple Wake Models [PDF]
, 2023 [Introduction] This article aims to study the optimal planned capacity setting of large-scale offshore wind farm. [Method] A series of numerical experiments were conducted on a single planned site with a capacity of 1 GW using three models with different
Chuqi XU +3 more
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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
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Research on Design Optimization of Offshore Booster Stations [PDF]
, 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
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全球能源互联网, 2019 海上风电的运维成本占项目总成本的20%以上，控制运维成本的能力已经成为决定风电场运营效益的关键。探索高效、可行的运维管理技术，是大规模开发海上风电急需研究的课题。针对海上风电场维护管理技术中3个重要研究领域，即海上风电场维护策略、运维路径优化和维护调度决策的研究现状进行了系统综述。针对目前存在的维护策略相对单一、路径优化求解困难以及维护调度决策模型过于理想等问题，提出了未来海上风电维护管理技术的研究趋势：机组不同部件将采用不同维护策略以最小化综合运维成本 ...
刘永前, 马远驰, 陶涛
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Research on Construction Mode of Large-Scale Offshore Wind Power Centralized Transmission [PDF]
, 2023 [Introduction] Offshore wind power has become a research hotspot in the development of global wind power. China's offshore wind power is still in its infancy, the current operation mode is not conducive to the large-scale centralized transmission of ...
Ni LI +3 more
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