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基于DE-RBF 混合优化算法的微电网自适应下垂控制策略 [PDF]
全球能源互联网, 2023 孤岛微电网因线路阻抗各异，采用传统下垂控制无法实现功率按分布式电源容量比例分配，会产生电压/频率偏差。为此，提出一种基于DE-RBF混合优化算法的自适应下垂控制策略。首先，构建下垂控制的两逆变器并联微电网系统动态模型，应用差分进化 （differential evolution，DE） 算法获得多个平衡点的优化下垂控制参数。为提高系统的动态响应速度与稳定性，通过训练径向基 （radial basis function，RBF） 神经网络，对每个平衡点参数进行校正。进而，通过增加RBF神经网络的隐含层数量，
吴丽珍, 魏建平, 丁安邦, 陈伟
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Family Process, Volume 62, Issue 2, Page 818-834, June 2023., 2023 Abstract The accelerated pace of biological aging predicts mortality and morbidity later in life. The current study examines whether a change in supportive couple functioning buffers accelerated aging associated with stressful community environments among Black Americans who live in rural, Southern, disadvantaged neighborhoods.
Man‐Kit Lei, Steven R. H. Beach
wiley +1 more source
Journal of Traumatic Stress, Volume 36, Issue 2, Page 285-298, April 2023., 2023 Abstract Rumination, or thinking repetitively about one's distress, is a risk factor for posttraumatic stress disorder (PTSD). Current theories suggest that rumination contributes to PTSD symptoms directly, by increasing negative reactions to trauma cues (i.e., symptom exacerbation), or represents a form of cognitive avoidance, if verbal ruminations ...
Blair E. Wisco +5 more
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Evident but context‐dependent mortality of fish passing hydroelectric turbines
Conservation Biology, Volume 36, Issue 3, June 2022., 2022 Abstract Globally, policies aiming for conservation of species, free‐flowing rivers, and promotion of hydroelectricity as renewable energy and as a means to decarbonize energy systems generate trade‐offs between protecting freshwater fauna and development of hydropower. Hydroelectric turbines put fish at risk of severe injury during passage. Therefore,
Johannes Radinger +2 more
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Family Process, Volume 60, Issue 4, Page 1170-1184, December 2021., 2021 This study is the first to evaluate Functional Family Therapy (FFT) in a non‐Western culture. The effectiveness of FFT was examined in relation to three proximal outcomes relevant to youth offender rehabilitation: (i) mental well‐being, (ii) family functioning, and (iii) probation completion.
Daniel Z. Q. Gan +4 more
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The uses and implications of avian vocalizations for conservation planning
Conservation Biology, Volume 35, Issue 1, Page 50-63, February 2021., 2021 Abstract There is a growing recognition that animal behavior can affect wildlife conservation, but there have been few direct studies of animal behavior in conservation programs. However, a great deal of existing behavioral research can be applied in the context of conservation. Research on avian vocalizations provides an excellent example.
Rebecca N. Lewis +2 more
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智能科学与技术学报, 2023 未来战场上的作战资源分配是一个存在总资源预算约束的多阶段对抗问题，具有环境高复杂性、动态不确定性、博弈强对抗性。基于布洛托博弈模型，首先把多阶段对抗场景下的资源分配问题建模为双层在线布洛托博弈，然后将原资源分配问题转化为有向无环图上的在线最短路径问题，并借鉴拉格朗日博弈对资源分配问题进行分析求解。此外，提出LagrangeBwK-Exp3-G算法以实现多阶段对抗条件下资源分配问题的高概率遗憾最小化，进一步通过数学推导获得关于时间范围T的高概率遗憾界。最后 ...
陈少飞, 邹明我, 苏小龙, 罗俊仁, 冯俊侨
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全球能源互联网, 2018 在城市高可靠性供电方式下，城市重要用户专门配置的应急电源利用率低下，资源浪费严重。随着未来电网的发展，分布式电源在城市日趋普及，将其兼做应急电源是解决传统应急电源闲置问题、进一步发挥分布式电源作用的有益尝试。提出了一种计及分布式电源的城市重要用户应急电源优化配置方法，以城市分布式电源的类型与特点确定其应急工作方式，利用多人决策AHP方法量化用户重要性，然后基于区域电网结构，以等效重要负荷最大为最优目标，以有功功率平衡为约束，通过遗传算法求解来划分应急孤岛 ...
刘飞, 汤亮亮, 邓鹤鸣, 伍俊
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Journal of Advanced Nursing, Volume 76, Issue 8, Page 2113-2124, August 2020., 2020 Abstract Aims To determine whether nurse staffing and nursing workload are associated with multiple organ failure and mortality. Design A cross‐sectional study. Methods This study was conducted in a single tertiary‐level teaching hospital during 2008–2017. The association between nurse staffing, nursing workload and prognosis was determined using daily
Miia Jansson +3 more
wiley +1 more source
Gaoya dianqi, 2023 针对风电波动性、间歇性和难预测等严重冲击电网安全运行问题，提出一种利用变分模态分解（VMD）和自适应权重粒子群算法（APSO）获得风电场混合储能系统容量优化配置方法。首先，基于典型日风电输出功率，利用低通滤波法得到满足标准的目标并网功率并获得储能系统参考功率。然后，将其通过VMD分解为高、低频功率，由超级电容器和蓄电池承担。最后，考虑储能充放电功率与荷电状态（SOC）等约束，建立以系统年综合成本最小为目标的容量优化配置模型，采用APSO算法求解并分析最优分界点和对应的储能配置方案 ...
赵峰, 张帆, 陈小强, 王英
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