Results 41 to 50 of about 80,895 (163)
Gaoya dianqi, 2015 文中研究了当今世界重点风电市场区域的风电场/风力发电机组接入电网技术规定,归纳并分析了风力发电机组设计所需要考虑的风电接入电网技术要求,如有功功率控制、无功功率控制、低电压穿越、高电压穿越、电网适应性、电能质量;同时以风电机组低电压穿越特性为案例,重点探讨了3种主流风电机组低电压穿越能力与电网之间的相互影响,以及各类风力发电机组低电压穿越特性的基本解决思路,对风电场运营部门和电网调度部门有一定的参考价值。
郑翔宇 +5 more
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Dianci bileiqi, 2022 输电线路绝缘设备大部分处于空气环境中，由于受到自然环境中风因素的影响，其绝缘介质周边气流往往处于动态过程，因此绝缘设备处于风环境下的放电特性与处于静态环境下相比具有差异。本研究以沿面针-板电极与空气间隙针-板电极为研究对象，通过自行搭建的风洞系统以模拟大风环境，实验过程通过记录放电路径与放电电压并分析风环境对两者的影响规律与内在机理。试验发现：在有风环境下放电路径会沿着风的来流方向发生偏移与弯曲；对于沿面针-板电极，随着风速的提升其闪络电压随之增大；对于空气间隙针板电极 ...
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Accelerating Just Energy Transitions in Brazil: Pathways for Social Development
Latin American Policy, Volume 17, Issue 1, March 2026.ABSTRACT This critical article analyzes energy poverty in Brazil from the theoretical perspective of distributive justice, proposing the implementation of a new social regulation called Contribution to Social Development. The goal is to support the process of a just energy transition leading to a broader debate on energy planning and social issues ...
Marcio Giannini Pereira +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Early detection of thermal runaway (TR) is essential for lithium‐ion battery (LIB) safety, as unchecked TR risks catastrophic failures in energy storage systems. Gas‐based sensing offers a faster and more direct approach by detecting decomposition products at the molecular level.
Tianshui Liang +9 more
wiley +1 more source
全球能源互联网, 2019 海上风能资源丰富且开发潜力巨大，海上风电开发对于应对全球气候变化问题具有重大意义。重点介绍了欧洲国家海上风电的发展现状和海上风电及输送关键技术。给出了欧洲主要的海上风电场装机容量和相关政策，并指出随着开发区域不断向深海拓展，有效降低成本至关重要。在海上风电及送出关键技术方面，介绍了大功率风力发电机、海底电缆、机组基础结构技术，以及海上风电直流汇集系统和不控整流送出方案。最后给出建议，对于海上风电场规划及并网方式选择，需要在考虑并网导则和具体技术基础上确定最终方案。
李翔宇 +4 more
doaj +1 more source
Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.ABSTRACT Time and chronology form the invisible architecture upon which modern civilization depends, governing synchronization across markets, power grids, communication networks, transportation, and defense. Yet, this shared temporal framework, engineered through atomic clocks, satellites, and digital synchronization, faces growing vulnerabilities ...
Bilal M. Ayyub
wiley +1 more source
Dianci bileiqi, 2014 根据对平原地区输电线路绕击问题分析,发现雷电绕击输电线路多发生在风向与输电线路垂直的地区,由此可见风向风速对输电线路的绕击影响较大。首先分析了风速对输电线路避雷线保护角的影响,得出风会使输电线路背风侧的避雷线保护角增大;同时计算了风速与输电线路绕击率的关系,认为在风速大于10 m/s时,220 kV输电线路的绕击率开始有较大的增加。最后针对风会使输电线路背风侧避雷线保护角增大的问题,根据某地风速统计资料和风向玫瑰图,提出了在输电线路走向与雷电季节风向垂直段采用避雷线不对称保护角来减小风速其影响 ...
张东, 董新胜, 陶凤源, 王世荣
doaj
Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.ABSTRACT Bangladesh's goal of achieving high‐income status by 2041 requires dependable, low‐emission, and affordable energy. With near‐universal grid coverage and increasing demand, nuclear energy is a strategic asset for long‐term baseload supply. However, the existing financing model, typified by the country's most expensive $12.65 billion Rooppur ...
Hafiz Ahmed
wiley +1 more source
Dianci bileiqi, 2018 风力机非常容易受到雷电袭击,因此保证风力机安全可靠的运行至关重要,风力机雷电保护的首要步骤是分析风机雷电流分布,基于实际工程中风力发电机结构和相关运行标准,将其几何和材料参数转换为EMTP-ATP软件中的等效电路模型,计算并分析风机雷电流分布和内部过电压问题。针对由于雷电直击风机转子叶片在其内部造成的电压应力问题,通过仿真计算分析了风机电气、IT系统的多种不同类型的过电压,仿真包涵了全变流风力机的电力电子器件分析。最后根据行业标准,通过依次添加保护装置的方法提出了在风力机通信、电气系统、杆塔塔顶 ...
高参, 毛凯, 张冬谊, 蒯雷
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Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.ABSTRACT The infiltration of counterfeit, fraudulent, and suspect items into civil nuclear supply chains, notably within power generation and medical isotope production, poses severe safety and security threats. The ever‐increasing growth in nuclear installations (70 power plants are under construction and another 100 are in the planning stage) and the
Hafiz Ahmed
wiley +1 more source