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基于DRU-HVDC送出系统的构网/跟网混合海上风电场黑启动策略
Gaoya dianqi随着海上风电向中远海拓展，基于二极管整流单元的高压直流（DRU-HVDC）输电系统因其经济性与可靠性备受关注，但其海上风电场黑启动控制仍具挑战。本研究针对采用DRU-HVDC的海上风电场低频交流汇集直流送出系统，提出了改进的构网型风电机组控制策略，进一步设计了构网/跟网可切换控制策略，最后在MATLAB/Simulink平台构建了仿真模型。经过仿真风电场能够平稳启动及构网型机组平滑并网，并可以实现构网型与跟网型两种运行模式无扰切换后的混合稳定运行。仿真结果验证了所提策略的有效性 ...
孟刘威, 王维庆, 李笑竹
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Gaoya dianqi海上风电是目前最具发展潜力的可再生能源领域之一，而柔性直流送出是远海风电最主要的直流送出方式。随着经济社会发展，较低电压等级的海缆输送容量已经难以满足日益增长的远海风能的输送需求。在整个海上风电柔性直流送出系统中，直流海缆是非常重要的组成部分，其安全性直接关系到整个直流输电工程的安全可靠运行。因此对于海缆过电压特性进行全面、详实的研究显得尤为重要。为了便于分析直流海缆的过电压特性，依托于某±525 kV海上风电柔性直流输电项目，在PSCAD/EMTDC环境下搭建了基于模块化多电平换流器的两端柔性直流输电（
刘航 +6 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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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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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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Journal of Traumatic Stress, Volume 36, Issue 1, Page 129-143, February 2023., 2023 Abstract During the Great East Japan Earthquake, many people experienced the loss of family and friends, among other traumatic events. This study sought to clarify the impact of the loss of significant close others on posttraumatic stress symptoms (PTSS), as well as the factors associated with PTSS, among individuals who experienced the loss of ...
Mayumi Harigane +9 more
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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]
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
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Analysis of Current Situation and Future Development of Offshore Wind Power Industry [PDF]
, 2023 [Introduction] Under the trend of accelerating the clean transformation of coastal energy and adjusting the industrial structure, offshore wind power will become an important support for the safe, clean and efficient transformation of power energy in ...
Jiachang LIU +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 Reasonable Consumption Rate of New Energy Transmission Under the New Power System [PDF]
, 2023 [Introduction] Large-scale new energy penetration is an important feature of the new power system. There is a certain contradiction between the high proportion of new energy consumption and the safe, economical and efficient operation of power system ...
Buyun SU, Shichao WANG
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