Results 41 to 50 of about 5,328 (175)
Gaoya dianqi, 2021 配电变压器进行短路冲击试验过程中需要较大的瞬时能量,若采用专用线路以及发电机组的冲击方式需要同步开关、调节阻抗、发电机以及专用线路等,不仅现场可操作性低,同时存在影响系统稳定性的风险。为解决上述配电变压器短路冲击中存在的问题,文中基于变压器、储能电容器与电力电子变换装置,提出了配电变压器储能式短路冲击试验方法,并在此基础上设计了一套配电变压器储能式短路冲击试验系统,实现了短路冲击试验状态量的快速调节,并通过同类型储能冲击装置的串并联完成冲击容量的提升。通过仿真以及现场试验 ...
牛勃 +5 more
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基于CNN-Bi-LSTM功率预测的海岛综合能源系统优化调度 [PDF]
, 2023 合理构建海岛综合能源系统对沿海能源清洁化转型意义重大，其优化调度更是实现海岛能源供需平衡的有效途径。为此，提出了一种考虑风光功率预测的海岛综合能源系统优化调度方法。首先，搭建包含氢能设备、海水源热泵、海水淡化装置、波浪能发电装置等新型能源转换设备的系统模型。其次，海上气候多变会导致新能源发电不稳定，故采用含环境变量重要性排序的一维卷积神经网络和双向长短时记忆神经网络（convolutional neural network-bi-directional long short-term memory ...
刘继彦 +4 more
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Impact on species' online attention when named after celebrities
Conservation Biology, Volume 38, Issue 2, April 2024.Abstract Celebrities can generate substantial attention and influence public interest in species. Using a large‐scale examination of publicly available data, we assessed whether species across 6 taxonomic groups received more page views on Wikipedia when the species was named after a celebrity than when it was not.
Katie Blake +3 more
wiley +1 more source
Research on Combustion Stability of a 600 MW Subcritical Power Unit Under Long-Term Deep Peak Shaving [PDF]
Deep peak shaving of thermal power units is a crucial technique for integrating new energy sources and altering energy consumption patterns. A 600 MW sub-critical coal-fired unit was chosen as the subject of research, and long-term operation tests were ...
FAN Wei +3 more
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A Soft Open Points Siting, Sizing, and Multi-Period Power Flow Optimization Based on Second-Order Cone Relaxation [PDF]
[Objective] With the large-scale integration of distributed energy resources such as wind and solar power, distribution networks are experiencing increasing operational challenges, including voltage violations, reverse power flows, and rising line losses.
Kai ZHANG +3 more
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Gaoya dianqi, 2017 电容串联补偿技术应用于配电网可以实现对线路无功正补偿、无时延、有效改善线路沿线电压质量,与传统的补偿技术和调压技术相比,具有负荷自适应性和良好的操作性。但由于配电网的复杂性和差异性,要实现电容串联补偿的合理配置必须掌握串联补偿装置（以下简称串补）稳态与暂态特性,补偿容量和最佳安装位置以及不同因素的影响规律。文中应用EMTP电磁暂态程序建立了典型辐射式结构的10 kV配网串补仿真模型,对输电导线直径、负荷容量及功率因素、串补容量及安装位置等对沿线路电压分布的影响进行了全面仿真分析 ...
冯南战, 张金凤, 郭洁
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Guangtongxin yanjiu, 2014 针对以往启发式p圈容量分配算法未考虑容量有限的问题,提出一种新的启发式算法。该算法以空闲容量为基础,将最大工作容量作为扩张标准来构造p圈,利用构造的p圈进行容量分配。用COST239网络拓扑对算法进行了仿真,结果表明,该算法能利用更少的空闲容量来保护更多的工作容量,且配置p圈数减少。
丁玉龙, 吴雯婷, 徐荣青
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Research Review of Gravity Energy Storage Based on Grand Structure and Slope Gravity Energy Storage Systems [PDF]
[Objective] Gravity energy storage, as a new form of energy storage, plays an increasingly important role in balancing power supply and demand, responding to intermittent energy fluctuations, and other aspects of the power system.
Biao LIU, Jun LI, Jun LI, Zhaowei YUAN
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Gaoya dianqi, 2017 在独立微电网的规划中,在确保满足负荷用电需求并考虑环保性的基础上,对系统容量的优化配置具有重要经济意义。为研究独立微电网容量优化配置的有效方法,以系统运行成本、可再生能源供电比例以及系统功率平滑度为目标,建立独立微电网容量优化配置模型。在子目标权重系数的求取中,结合适应度离差排序法和模糊层次分析法提出了一种权系数综合分析法。最后,采用自适应混沌粒子群算法求取最优解。以某地区示范工程为例,仿真和实验结果表明,使用所提方法优化配置系统容量取得了良好的经济性,可节约成本18.265万元 ...
赵乃卓, 王兆博
doaj
Summary of Desert Photovoltaic Power Transmission Technology [PDF]
To achieve carbon peaking and carbon neutrality goals and improve energy efficiency, new energy plays a major role in China strategic deployment. However, as centralized photovoltaic is located in desert areas, photovoltaic power transmission has become ...
CHU Shuai +5 more
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