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Dynamic Response of 6MW Spar Type Floating Offshore Wind Turbine by Experiment and Numerical Analyses 被引量:1
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作者 MENG Long HE Yan-ping +6 位作者 ZHAO Yong-sheng YANG Jie YANGHe HAN Zhao-long YU Long MAO Wen-gang du wei-kang 《China Ocean Engineering》 SCIE EI CSCD 2020年第5期608-620,共13页
The floating offshore wind turbine(FOWT) is widely used for harvesting marine wind energy. Its dynamic responses under offshore wind and wave environment provide essential reference for the design and installation. In... The floating offshore wind turbine(FOWT) is widely used for harvesting marine wind energy. Its dynamic responses under offshore wind and wave environment provide essential reference for the design and installation. In this study,the dynamic responses of a 6 MW Spar type FOWT designed for the water depth of 100 m are investigated by means of the wave tank experiment and numerical analysis. A scaled model is manufactured for the experiment at a ratio of65.3, while the numerical model is constructed on the open-source platform FAST(Fatigue, Aerodynamics,Structures, and Turbulence). Still water tests, wind-induced only tests, wave-induced only tests and combined windwave-current tests are all conducted experimentally and numerically. The accuracy of the experimental set-up as well as the loading generation has been verified. Surge, pitch and heave motions are selected to analyze and the numerical results agree well with the experimental values. Even though results obtained by using the FOWT calculation model established in FAST software show some deviations from the test results, the trends are always consistent. Both experimental and numerical studies demonstrate that they are reliable for the designed 6 MW Spar type FOWT. 展开更多
关键词 floating offshore wind turbine dynamic responses Spar type platform FAST model test
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基于REC技术的DFB激光器阵列驱动电路的设计
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作者 郭瑜 杜韦慷 +2 位作者 李威 王颖颖 倪屹 《激光与红外》 CAS CSCD 北大核心 2018年第9期1160-1165,共6页
为了实现DFB激光器阵列的智能化控制,提出了一种智能化、高精度、数字控制的驱动电路设计方案。该系统以单片机和FPGA为主要控制芯片,具有体积小、效率高、无冲击、开关保护等特点。DFB激光器阵列的输出可以由外部可调信号控制。该系统... 为了实现DFB激光器阵列的智能化控制,提出了一种智能化、高精度、数字控制的驱动电路设计方案。该系统以单片机和FPGA为主要控制芯片,具有体积小、效率高、无冲击、开关保护等特点。DFB激光器阵列的输出可以由外部可调信号控制。该系统将模拟控制模型转化为数字控制模型,提高了驱动电路的性能。该系统能够实时监测DFB激光器阵列的温度和电流。电流的输出精度可以达到±0.1 m A,保证DFB激光器阵列稳定可靠地工作。该驱动电路有利于DFB激光器阵列的灵活使用。 展开更多
关键词 可调谐激光器阵列 快速波长切换 GN25L96 驱动电路
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