Results 71 to 80 of about 8,369 (224)
考虑配电网与电化学储能交互耦合关系的异常运行状态预警方法 [PDF]
全球能源互联网配电网稳定性直接关系到终端用户侧储能的运行质量。针对配电网异常运行场景下用户侧储能系统的安全问题，提出了一种热失控预警方法。该方法通过确立从配电网异常状态到用户侧储能的完整传导路径，识别了锂离子电池热失控的关键特征量，包括异常电流值/电压值和异常状态持续时长。进而建立了用户侧储能的状态演化模型，分析了这些特征量对储能安全运行状态的影响。仿真结果揭示了不同异常电气量变化对储能安全的具体影响，如异常电流值/电压值与储能异常温度的高正相关性，以及异常状态持续时长的强正相关性。基于此 ...
范培潇 +6 more
doaj +1 more source
The study of bidirectional DC-DC converter in the DC microgrid [PDF]
, 2016 作为新能源的有效利用方式之一的直流微电网没有无功功率的损耗，不需要跟踪频率和相位，可靠性和可控性有较大程度的提高，更适合分布式能源的接入和应用。双向DC-DC变换器承担着母线与储能之间能量双向流动的重要作用。同时，它还可以作为直流微电网之间的互联元件，具有十分重要的研究价值。 本文针对全桥拓扑结构的双向DC-DC变换器展开较为深入的研究。 首先，详细分析了在移相控制方式下，双向DC-DC变换器的在降压方向和升压方向的工作原理及零电压开关（ZVS，Zerovoltageswitching）的具体过程 ...
纪承承
core
High‐Brightness Delayed Imaging Realized by Embedding Zinc Gallate Nanocrystals Into Glass
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT X‐ray delayed imaging technology leverages an “irradiation‐storage‐thermally stimulated readout” mode, demonstrating unique advantages in intermittent monitoring scenarios such as high‐temperature/high‐radiation environments. This typically requires materials combining abundant carrier‐trapping energy levels with structural thermostability ...
Jun‐Xiao Wu +6 more
wiley +1 more source
Electrolyte With Functionalized Boron Nitride Nanosheets for Dendrite‐Free Lithium Metal Anodes
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Lithium metal batteries (LMBs) are regarded as promising candidates for the next‐generation high‐energy‐density storage systems due to their unparalleled theoretical energy density and low redox potential. However, the commercialization of LMBs is tremendously plagued by the barbaric growth of lithium dendrite and the intricate decomposition ...
Ji Zhou +5 more
wiley +1 more source
Research on Bridge Modular Switched-Capacitor AC-AC Converter and Control Strategy [PDF]
, 2016 在需要对交流电进行升降压的场合，AC-AC功率变换器相比传统自耦变压器具有体积小、重量轻等优点。开关电容功率变换器由于不含磁性元件，能够显著提高变换器效率、减小体积。本文首先提出了一种桥式模块化双向开关电容AC-AC变换器，能实现变比为4n或1/4n(n=1，2，3…)倍的AC-AC变换。阐述了该变换器的拓扑结构、工作原理及基本性能。设计并研制了一台实验样机，额定功率600W，电压220V/55Vrms，开关频率100kHz。 然后，针对传统开关电容变换器输出电压不可调节问题 ...
李彤
core
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of sodium‐ion batteries (SIBs) is limited by slow charge transfer kinetics and large material volume changes caused by the large radius of Na+. Leveraging the excellent physicochemical properties and unique heterostructures of metal selenides, ultrafine hetero‐CuFeSe2‐CoSe2 nanoparticles are in situ wrapped by ...
Ying Zhu +5 more
wiley +1 more source
Gaoya dianqi, 2023 电池储能系统被认为是解决可再生能源的不确定性和不平衡性导致的功率不足和频率波动的有效途径。基于此，文中提出了一种基于电池的荷电状态SOC(state of charge)的电池储能系统混合控制策略。首先，文中将电池的SOC、调频和调峰需求划分为不同的区域，并对调频和调峰提出相应的控制策略，提出SOC自恢复控制策略。之后提出储能的混合控制策略，基于电池储能的SOC，将储能的调频与调峰功能与SOC自恢复策略相结合，实现储能对电力系统的优化。最后通过仿真分析验证该控制策略的合理性与应对可再生能源波动的能力。
李盈 +9 more
doaj
Interface Issues of Inorganic Solid‐State Electrolytes in Secondary Magnesium Batteries
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Solid‐state magnesium batteries (SSMBs) have gained significant attention as promising candidates for next‐generation safe energy storage systems because of the abundance of magnesium (Mg) in the earth's crust, superior energy density, and inherent nonflammability.
Jiren Wang +9 more
wiley +1 more source
Dianci bileiqi, 2023 为降低高比例新能源配电网电压越限风险和线路潮流越限风险，本研究提出一种计及高比例新能源配电网电压风险的储能容量优化配置方法。该方法首先识别高比例新能源带来的电压越限风险和线路越限风险，并基于效用理论构建量化模型；接着建立风、光、荷的概率模型，确立储能运行控制策略，在考虑配储经济性条件下，建立以系统风险最小为目标的储能选址定容优化模型，最终通过算例确定储能最优安装位置和容量以及运行方式，结果表明储能多点分散接入能降低高比例新能源配电网风险值，验证了所提方法的可行性。
张科杰 +5 more
doaj
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
core +1 more source