Results 11 to 20 of about 688 (120)
Research on Factors Influencing the Heat Dissipation Performance of Semi-Direct Drive Permanent Magnet Wind Generator [PDF]
, 2023 [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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Study on Maximum Power Tracking Strategy of 10 MW Medium Voltage Six-Phase Direct-Drive Permanent Magnet Wind Turbine [PDF]
, 2022 In order to maximize the grid-connected power of high-power offshore wind turbines, a maximum power tracking strategy suitable for medium voltage six-phase permanent magnet synchronous generator (MVSPMSG) was proposed in the paper based on the use of ...
BAI Ru +5 more
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Policy &Internet, Volume 15, Issue 4, Page 575-590, December 2023., 2023 Abstract The regulation of violent right‐wing extremist online content in the European Union is facing a conundrum. On the one hand, pressure to respond to concern over violent right‐wing extremism (or VRWE, a term used by the European Union to refer to ‘far right’) has led to a push to develop a coherent European‐wide response.
Danielle Flonk, Richard McNeil‐Willson
wiley +1 more source
Modeling and simulation of PMSM control system based on SVPWM [PDF]
, 2008 The paper introduces the basic principle of space vector pulse width modulation simply and expatiates a method for implementing space vector pulse width modulation in detail based on MATLAB/SIMULINK, designs modeling and simulation of AC servo system ...
Guo, Y, Jin, J, Wang, Z, Zhan, Y, Zhu, J
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Creating conservation strategies with value‐focused thinking
Conservation Biology, Volume 37, Issue 5, October 2023., 2023 Abstract Biodiversity and human well‐being strategies are only as good as the set of ideas people think about. We evaluated value‐focused thinking (VFT), a framework that emphasizes creating objectives and strategies that are responsive to the objectives.
David M. Martin +8 more
wiley +1 more source
Review of Policy Research, Volume 40, Issue 5, Page 626-645, September 2023., 2023 Abstract In their efforts to digitize public service delivery, countries increasingly use algorithms based on mathematical models, data and/or a combination of different administrative datasets to issue decisions, but recent studies point towards challenges around citizens' understanding, accessing, and filing objections to such automated decisions ...
Sarah Giest, Annemarie Samuels
wiley +1 more source
Critical pedagogy of place to enhance ecological engagement activities
Conservation Biology, Volume 37, Issue 2, April 2023., 2023 Abstract Scientists in higher education institutions around the globe recognize the importance of engaging with public stakeholders to share their enthusiasm, explain their science, and encourage primary and secondary students to enter the sciences. However, without direct consideration of students’ and teachers’ perspectives and interests, scientists ...
Amanda S. Cicchino +3 more
wiley +1 more source
基于镜像磁场和动力学模型的变压器负载振动噪声数字孪生模型研究
Gaoya dianqi, 2022 负载电流引起的绕组振动是运行中变压器噪声的主要来源之一。为了深入研究变压器绕组的负载振动特性，文中首先提出了基于镜像法的绕组漏磁场和绕组电动力计算模型，然后建立了绕组轴向振动的动力学模型，结合电动力计算了绕组振动特性，最后建立了绕组声辐射的有限元模型分析了绕组的声场分布。对一台50 kVA变压器的计算结果表明，镜像法计算的绕组电动力与有限元法的误差小于5%，额定电流下绕组的振动加速度约为0.065 m/s2，绕组辐射噪声最大达到43 dB。文中提出的模型可支撑变压器振动噪声数字孪生技术的研究及应用。
罗兵 +5 more
doaj
Research progress in Li-ion battery pack inconsistency control [PDF]
, 2017 总结电池均衡、成组方式和热管理的研究方法及问题。电池均衡技术主要有电池均衡电路、电池均衡控制策略；电池成组方式主要有电池串并联方式、电池连接阻抗；电池热管理主要有电池生热特性 ...
冯自平, 吕杰, 宋文吉, 罗卫
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Characteristics Analysis and Technical Prospect of Low-Frequency Main Transformer for Offshore Wind Power [PDF]
, 2023 [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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