Gaoya dianqi, 2023 随着国内外大容量远距离海上风电的开发，采用基于模块化多电平换流器（modular multilevel converter,MMC）的柔性直流送出方式具有更大的经济优势。文中在介绍MMC工作原理和海上风电柔性直流送出拓扑基础上，提出了陆上换流站有源控制、海上换流站无源控制、陆上换流站直流耗能装置协调控制、海上换流站双联接变协调控制及系统启动顺序控制等核心控制策略；通过搭建基于实时数字仿真系统（real time digital simulation system,RTDS ...
宋延涛 +5 more
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Experimental Research on Scour Protection Range and Protection Effect of Large Diameter Monopile Foundation [PDF]
, 2023 [Introduction] Under the wave-current combinations during the service period of offshore wind turbine, local scour inevitably occurs around pile foundation, which threatens the overall stability and safety of offshore wind turbine. [Method] In this paper,
Dezong ZHOU +4 more
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40 kV两级升压型全直流海上风电场用直流断路器的技术参数与样机设计
Gaoya dianqi, 2022 采用直流进行能量汇集和传输的全直流海上风电场代表了未来海上风电场的一种发展趋势。直流断路器是构建全直流风电场的核心设备。文中通过对全直流海上风电场的调研和分析，提出一种多端海上直流风电场系统拓扑，并结合海上风电场的主流参数要求对其电压等级和容量等级等参数进行配置；基于该风电场搭建仿真模型，进行稳态和故障仿真分析，提取出适用于该系统的直流断路器参数；基于该参数开展直流断路器各个部件的设计及仿真，并开展适用于海上平台应用条件的结构设计，设计出40 k V级适合海上风电场环境的直流断路器，可在3 ms内开断9
高树同 +4 more
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Experimental Research on the Dynamic Characteristics of Offshore Wind Turbine Model Under the Action of Highly Nonlinear Waves [PDF]
, 2023 [Introduction] Monopile foundation is currently the most widely used support structure for offshore wind farms. For offshore wind farms in the medium water depth area such as Dafeng, Binhai and Sheyang in China, the design waves are very close to the ...
Lixian ZHANG +6 more
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采用二极管整流单元和模块化多电平换流器的混合型远海风电送出方案
Gaoya dianqi, 2023 目前基于模块化多电平换流器（modular multilevel converter,MMC）的柔性直流输电系统是远海风电并网的典型方案，而整流站采用二极管不控整流单元（diode rectifier unit,DRU）可以进一步提升直流输电系统的经济性和可靠性。基于DRU的海上风电并网方案能否实施的关键在于海上交流系统电压的幅值和频率能否得到有效控制。为此，提出在整流侧采用DRU和MMC并联的混合型远海风电送出方案。首先，阐明了混合型远海风电送出系统的拓扑结构和运行特性 ...
彭开军 +5 more
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Key Technology of Construction Process Control of Guide Frame Platform Suction Bucket Foundation [PDF]
, 2023 [Introduction] The present, design and construction technology of suction bucket foundation is not mature, and there is lack of the normative guidance documents, the special research on the key technology of the construction process control of the ...
Huaquan LIU +4 more
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Research on the Engineering Geological Model and Its Application for Offshore Wind Power Development and Construction [PDF]
, 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
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Overview of Current Situation and Trend of Offshore Wind Power Development in China [PDF]
Under the carbon peak goal and carbon neutral vision, offshore wind power has made great progress in China in recent years. The current development status and future planning of offshore wind power in China were analyzed, summarizing the installed ...
MA Kuichao +5 more
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Model Test Study on the Influence of the Spudcan Penetration Depth on the Horizontal Bearing Characteristics of Jack-Up Vessel for Wind Turbine Installation in Sandy Soil [PDF]
, 2023 [Introduction] As an important construction equipment in the development of offshore wind power, studying the bearing performance of the jack-up vessel for wind turbine installation in the in-situ state to ensure its operation safety is of great ...
Conghuan LE +5 more
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Gaoya dianqi, 2022 海底电缆较大的充电功率导致海上风电输电系统的工频过电压较严重,可采用高压并联电抗器进行限制。文中以中国某220 kV海上风电场为例,对其工频过电压进行了理论计算,并利用电磁暂态计算程序(alternative transient program-electro magnetic transient program,ATP-EMTP)建立了海上风电场经交流海缆送出系统模型,计算了输电系统工频过电压分布,进而对高压并联电抗器配置方案进行了分析。研究表明系统侧甩负荷过电压远大于风场侧甩负荷过电压 ...
张文君 +7 more
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