Results 61 to 70 of about 1,562 (168)
钢网格盒式结构空腹楼板与柱相交组合节点及纯钢节点的抗震性能试验研究
Jianzhu Gangjiegou Jinzhan, 2018 为研究钢网格盒式结构空腹楼板与柱相交节点的抗震性能及空腹楼板上覆现浇钢筋混凝土层对节点抗震性能的影响,开展了2个边柱组合节点、2个边柱纯钢节点的低周反复加载试验。分析比较了节点的破坏模式、滞回曲线和耗能能力。试验结果表明:钢网格盒式结构的纯钢节点和组合节点滞回曲线比较饱满、稳定,具有良好的延性和耗能能力,盒式结构节点抗震性能良好。相对于纯钢节点而言,组合节点由于混凝土层的抗压和钢筋的抗拉作用,其承载力、刚度和耗能性能均有一定程度的提高,在对节点承载力和抗震性能的分析中 ...
孔丹丹 +4 more
doaj
物联网学报设计了一款无线多通道混合数据采集系统，包含硬件系统和PC数据采集及分析处理软件系统两部分。硬件系统根据目标需求，通过按键设置体表肌电（sEMG, surface electromyography）信号采集通道数和惯性测量单元（IMU, inertial measurement unit）数量，基于FreeRTOS操作系统创建sEMG信号传输任务和与IMU传感器数量对应的运动学数据采集任务，采用互斥信号量技术确保各任务获取的数据通过Wi-Fi传输给PC软件系统；PC软件系统实现对获取的混合信号实时显示 ...
罗志成1，田宁2，3，杨光2，3，秦飞舟1，2，鲍学亮2，3
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Power Coordinated Control Strategy for Grid-Connected DC Microgrid Considering State of Charge [PDF]
ObjectivesExisting research on decentralized coordinated control strategies mainly focuses on power distribution within DC microgrid, with limited consideration given to the operation of grid-connected DC microgrids.
LI Hailong +6 more
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Design of novel high-performance current-mode CMOS explicit-pulsed flip-flops(高性能电流型CMOS显性脉冲触发器设计)
Zhejiang Daxue xuebao. Lixue ban, 2013 提出以电流信号表示逻辑值的电流型CMOS显性脉冲触发器的设计用于低功耗高性能混合集成电路设计中，以减少存储单元开关噪声对电路性能的影响.所提出的电流型CMOS显性脉冲触发器较以往文献中电流型CMOS主从触发器和电流型CMOS边沿触发器晶体管数量分别减少11个和4个，采用TSMC 0.18 µm COMS工艺参数的HSPICE模拟结果表明，所提出的电流型脉冲触发器具有正确的逻辑功能，平均延时分别减少了48.8%和57%, 具有结构简单，功耗低和速度快的特性，同时该触发器可方便应用于单边沿和双边沿触发.
ZHANGLi-bin(张立彬) +2 more
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A Frequency Regulation Method of Energy Storage System Based on Adaptive Adjustment of Virtual Synchronous Generator Control Parameters [PDF]
ObjectivesThe large-scale penetration of wind power has reduced the frequency regulation capability of the power system to a certain extent.As a relatively mature and effective technical means, the energy storage system is widely used in power grid ...
LI Bo +4 more
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Gaoya dianqi随着氢储能技术的不断发展，含氢微网中包含多个主体电源的容量合理配置问题将是今后推进电氢融合的重要方向之一。文中针对风光氢微网系统之间的合理配置问题展开研究。首先，考虑风光氢三方个体的收益模式，以风光出力为前提，氢储能实现电网剩余功率消纳，构建多主体收益模型；其次，针对氢储能制氢侧采用质子交换膜电解槽和碱性电解槽混合方法，以制氢收益与消纳率为目标，构建混合制氢配置模型；最后，采用NSGA-Ⅱ算法计算各主体纳什均衡点求解各主体配置结果。结合西北某地区典型月风速、光照场景数据进行计算，仿真结果表明 ...
侯永全 +6 more
doaj
基于SE-improved SGMD的混合储能容量优化配置方法研究
Gaoya dianqi采用混合储能系统平抑风电输出功率波动可有效解决风电并网问题，而不同功率分配方法对混合储能优化配置结果影响大，为此提出一种基于样本熵改进的辛几何模态分解方法（sample entropy-improved symplectic geometric mode decomposition，SE-improved SGMD）的混合储能系统功率分配策略。首先，采用SGMD对不平衡功率进行分解，获取一系列辛几何分量SGC（symplectic geometry component）；然后 ...
刘禹彤, 赵琳, 王鑫太
doaj
Short-Term Wind Power Prediction Method Considering Wind Turbine Operation Status Clustering Under Low-Temperature Conditions [PDF]
ObjectivesLow-temperature weather poses challenges to the operation of power systems with a high proportion of new energy, such as wind power. Improving the accuracy of short-term wind power prediction under low-temperature conditions will provide ...
FU Xuejiao +5 more
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Zhejiang Daxue xuebao. Lixue ban, 2011 奥陶系碳酸盐岩储层是塔中地区重要的油气产层.测定塔里木盆地奥陶系热液矿物（方解石、石膏、重晶石等）及围岩的碳氧同位素以及锶同位素，分析结果显示，热液溶蚀围岩后释放的CO2可能是形成方解石中特征氧同位素组成的主控因素；自生碳酸岩矿物的碳同位素组成反映其在成岩期至少有2种碳源，早期形成的碳酸盐岩与二叠纪富13C的碳源相关，成岩早期至晚期的碳酸盐岩的沉淀或重结晶可能与由局部地质事件导致流体在沿裂缝系统运移时混合了有机质降解过程中产生的富12C的CO2有关；87Sr/86Sr值(0.708~0.718 ...
GAOQi-dong(高奇东) +6 more
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Research on Economic Scheduling of Active Distribution Networks With Inclusion of Data Center and Energy Storage [PDF]
ObjectivesTo improve the new energy consumption capacity of the power grid, reduce operational costs for power generation companies, and address issues such as increased network losses and reduced new energy consumption when large-scale renewable energy ...
LI Ji, MA Haoran, WANG Weiqing, YUAN Zhi
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