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考虑光储联合系统参与频率响应的储能容量优化配置方法 [PDF]
全球能源互联网, 2018 随着能源危机和环境污染问题的加剧，光伏发电作为可持续的清洁能源受到越来越多的关注，储能在含光伏电力系统中的应用也日益广泛。然而，储能的大规模应用却面临成本高难以推广、收益衡量困难等瓶颈。基于此，考虑光伏-储能联合系统参与系统频率响应后的经济效益，研究光伏电站配置储能的经济性。对储能系统的潜在收益和其应用于电力市场辅助服务的可能性进行讨论，提出一种储能容量优化配置的方法。结果表明，配置储能并参与系统频率响应调整辅助服务能调高光伏电站的总收益。另外，对储能容量优化配置过程中敏感因素的影响进行了分析 ...
金楚, 周博, 艾小猛, 文劲宇
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Gaoya dianqi, 2022 电磁斥力的驱动时间关系到电磁斥力机构的驱动效率及所受冲击应力大小，该文提出优化电磁斥力驱动时间的研究思路，分别建立了线圈—盘式电磁斥力机构的有限元仿真模型及柔性体仿真模型，在输入能量一定的前提下，通过改变电容容量及其充电电压值来调整电磁斥力驱动时间，在此基础上研究其对电磁斥力机构驱动效果、运动过程及结构应力的影响。研究表明：在保证快速机械开关能够有效开断的范围内，充电电容越大，电磁斥力脉宽越大峰值越小，驱动时间越长，电磁斥力机构驱动效率越高，斥力盘内结构应力峰值越小，但缓冲装置所受冲击也越大 ...
刘俊翔, 彭和平, 莫文雄, 王勇
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Gaoya dianqi, 2022 绕组交叉换位对高频变压器漏磁场影响很大,进而对绕组电磁力产生影响。为了明确不同交叉换位结构对高频变压器漏磁场和电磁力的影响规律,基于有限元分析方法,文中首先对无交叉换位、部分交叉换位和完全交叉换位方式下高频变压器的导体区域电流密度、铁心窗口区域漏磁场强度进行计算,将仿真结果与实验结果进行对比,验证了有限元模型的有效性。然后,计算了不同绕组布置方式下的绕组电磁力。结果表明:部分交叉换位后邻近效应削弱,漏磁场强度和电磁力降低一半,完全交叉换位后邻近效应几乎全部消除,漏磁场强度和电磁力为无交叉换位时的1/4 ...
陈彬 +5 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Near‐infrared (NIR) phosphors with broadband and efficient emission are pivotal for the performance of NIR phosphor‐converted light emitting diodes (pc‐LEDs). In this study, the double perovskite phosphor La2MgTiO6:Cr3+ phosphor with broadband emission in the range of 650–950 nm was prepared.
Xu Qian +7 more
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Kinetic‐Controlled Growth of Iron Chalcogenide Nanosheets Featuring Besnus Transition
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Two‐dimensional (2D) Fe‐based nanosheets have sparked wide attention owing to exotic magnetism, superconductivity and topological phases. However, the synthesis of 2D FemXn (X = Te/Se/S, m, n: integer), typically in a non‐stoichiometric ratio, remains challenging because of narrow thermodynamic windows.
Hongmei Zhang +11 more
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Gaoya dianqi, 2020 针对地磁风暴发生时系统电压降低的现象,研究了地磁感应电流引起的直流偏磁对电力系统电压的影响。基于PSCAD/EMTDC平台搭建了地磁感应电流—直流偏磁的仿真模型,并用低频正弦交流电模拟地磁感应电流,记录了变压器无功功率的需求变化和系统的电压,另外研究了地磁感应电流对发电机出力的影响,同时与单极运行直流电流对电压的影响进行对比研究。结果表明,磁感应电流会导致变压器无功需求周期性增多,系统电压周期性降低,最大下降约为10%,同时地磁感应电流会导致发电机有功出力减小、无功出力增大 ...
万毅 +5 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT To address the demand for high‐temperature stability, broadband strong absorption, and multifunctional integration of electromagnetic wave absorbing materials in complex service environments, lightweight molybdenum disulfide (MoS2) decorated silicon carbide (SiC) nanofiber composite aerogels with a directional layered interconnected structure ...
Zhi Song +4 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The growing deployment of high‐frequency electronic systems has intensified the demand for high‐performance microwave absorption materials. In this work, we developed La‐V co‐substituted barium hexaferrites, Ba1‐xLaxFe11.9V0.1O19 (BLFVO), via a sol‐gel route.
Zhihui Yang +7 more
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Gaoya dianqi, 2022 针对直流电网对快速真空开关分闸要求高的问题，提出了一种基于电磁斥力—永磁保持式机构的快速真空开关。利用有限元方法对永磁保持机构保持力和电磁斥力—永磁保持式机构分闸动作过程多物理场进行仿真分析，得出了永磁体厚度和静铁心内部厚度对永磁保持机构保持力的影响，掌握了变化量对机构分闸动作过程的影响。通过对基于电磁斥力—永磁保持式机构的快速真空开关样机的分闸特性测试，与仿真结果具有高度一致性，证明其正确性，对后续此类机构的优化设计具有指导意义。
张公一 +6 more
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Structural Modulation of Magnetic Softness in Fe‐Based Amorphous Alloys via Pulse Current Training
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Fe‐based amorphous alloys, despite their intrinsically low magnetocrystalline anisotropy, suffer from quasi‐dislocation dipoles and localized stress fields that impede domain‐wall motion and increase coercivity. Here, we introduce pulse current training (PCT) as an energy‐efficient technique to overcome these limitations in a Fe76Si9B10P5 ...
Shumin Ye +13 more
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