Analysis of the Influence of Common Mode Current on Wind Turbine [PDF]
[Introduction] The objective is to solve the injury and destruction of the wind turbine equipment caused by the common mode interference current and avoid the long-term operation of the wind turbine with faults and the damage to the large components of ...
Xiaofeng WANG
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Research on Factors Influencing the Heat Dissipation Performance of Semi-Direct Drive Permanent Magnet Wind Generator [PDF]
[Introduction] With the development of wind power generation technology, the unit capacity of permanent magnet wind generator is increasing, and the heating power is also increasing.
Desheng MIAO, Di WU, Rui SUN, Wenpeng GE
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Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind Power [PDF]
[Introduction] Low-frequency alternating current power transmission technology has attracted wide attention. Although its theoretical research continues to go deeper, there are still many problems to be solved before its engineering implementation in ...
Jutian LI +4 more
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Research on the axial force-slip characteristics of permanent magnetic eddy current Frictional torque limiter [PDF]
In view of the current situation of short life and poor reliability of the overload protection device of friction moment limiter in coal mine machinery, a new high-power fast breaking permanent magnet eddy current friction Moment limiter (PMEFTL) is ...
Hong ZHANG, Yuting WANG
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物理学的历史负担 = Altlasten der Physik [PDF]
人们通常沿科学发展的路径来学习物理。这是一条曲折的路径。在这条路径中,有许多错误的概念、多余的名称和过时的方法。在这本书中,我们用了200多篇文章的篇幅逐一分析了这些错误。每篇文章都有相同的结构:1.主题,2.负担,3.历史,4.建议。这些文章已经发表在一些期刊中。因此 ...
Herrmann, Friedrich, Job, Georg
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Research progress in integrated thermal management of electric vehicles [PDF]
Severe energy crisis and environmental pollution are the foremost problems in the world today. Electric vehicles have several advantages over traditional internal combustion engine-based vehicles, such as high energy efficiency and low emissions, which ...
Jia-lin LIANG +3 more
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针对一种混合充磁式磁齿轮复合电机的损耗进行了研究,对比分析混合充磁式磁齿轮复合电机和径向充磁式磁齿轮复合电机的磁场和气隙磁通密度及其谐波,得到了不同转速下两种磁齿轮复合电机的铁耗和涡流损耗情况,并对调磁块形状进行了优化。结果表明,与径向充磁式磁齿轮复合电机相比,混合充磁式磁齿轮复合电机铁耗更小,产生的磁场强度更强,内层和中层气隙磁通密度更大,外层径向磁通密度和切向磁通密度的谐波幅值相对较小,有助于减少涡流损耗;优化后的圆形调磁块结构 ...
吴迪, 张芮, 张邦京, 朱姿娜
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Preparation and performance optimization of iron-based soft magnetic composites based on CaO insulating layer and FexOy transitional interlayer [PDF]
To explore the application potential of calcium oxide (CaO) as the insulating layer in soft magnetic composites, a strategy of introducing FexOy as the intermediate transition layer between the CaO insulating layer and the iron matrix was proposed to ...
HE Hao +5 more
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Beam Line Design and Beam Physics Study of Energy Recovery Linac Free Electron Laser at Peking University [PDF]
Energy recovering linac (ERL) offers an attractive alternative for generating intense beams of charged particles by approaching the operational efficiency of a storage ring while maintaining the superior beam quality typical of a linear accelerator.
Wang, Guimei
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Performance Test of High-temperature Immersion Pump for In-reactor Purification of Integrated Fast Reactor [PDF]
In the integrated fast reactor project of the China Institute of Atomic Energy, in order to keep the primary circuit sodium within the reactor and prevent radioactive sodium leakage, an in-reactor cold trap is used to purify the impurities in the sodium,
LI Xu1, GENG Xiao1, YAO Zewen1, , YU Chunli1, WU Peng2, YU Genfang2
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