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提升风电消纳水平的电力系统灵活性措施经济性评估方法研究 [PDF]
全球能源互联网, 2018 近年来，中国风电并网容量不断增大，出现了严重的弃风现象，随着各类技术可行的灵活性措施提出，亟需研究经济合理的措施组合以降低弃风量。为此，提出一种提升风电消纳能力的电力系统灵活性措施的经济性评估方法。首先，构建基于成本效益的经济性评价指标，即减少风电弃风量的单位成本，以量化各类灵活性措施对提高电网风电消纳能力的效果；然后，采用时序生产模拟模型量化分析系统的年度弃风总量，生产模拟模型考虑常规电源、风电及负荷，以小时为仿真粒度进行机组组合和经济调度；最后，构建了灵活性措施的年化成本模型 ...
张富强, 元博, 张晋芳, 张涛
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Jianzhu Gangjiegou Jinzhan, 2023 考虑施工工艺后，空间结构相对一次成型通常会产生附加内力。如何选用较优的施工方案，减少附加应力对结构安全的影响，是施工单位比较关注的问题。以某电教中心周边支承网架结构为例，选用常用施工工艺，进行设计-施工一体化分析，研究其杆件附加应力分布和结构安全性。结果表明，附加应力产生的主要原因是施工过程中支座约束时受力状态与一次成型有较大区别，当与一次成型接近时，杆件的附加应力较小。随着措施量的增加，各施工工艺的换杆数量逐渐递减。在分块吊装或提升工艺下，分块的数量对网架结构服役阶段位移影响较小；在滑移施工工艺下 ...
崔嘉慧 +5 more
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Emerging applications of large language models in ecology and conservation science
Conservation Biology, EarlyView.Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides +5 more
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Resource Substitution: Local Governments' Issue Attention and Policy Reinvention
Policy Studies Journal, EarlyView.ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
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Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT In an era of proliferating but divergent data protection regimes, the European Union's rights‐based approach and China's sovereignty‐centric model have become two dominant poles of global data governance. This article examines how multinational enterprises navigate compliance under these dual systems and how that compliance is shaped through ...
Yiping Cao
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Dielectric polymers commonly suffer from severe performance degradation above 150°C, hindering advanced power systems. Herein, we demonstrate a polyetherimide (PEI) nanocomposite that overcomes this by mimicking the gradient architecture of nacre and bamboo, incorporating a continuous vertical gradient of fluorinated boron nitride nanosheets ...
Jian Wang +8 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Aqueous zinc‐ion batteries (AZIBs) have attracted increasing attention in energy storage owing to their high energy density, low redox potential, and cost‐effectiveness. Nevertheless, uncontrolled dendrite accumulation, gas generation, and severe side‐reaction problems hinder the cycling lifespan, which prevents their commercial applications ...
Xiangzhong Kong +8 more
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Gaoya dianqi, 1958 1959年国家要求发电设备的生产比1958年猛增十倍多,同时要求掌握330千伏級的高电气設备的制造技术。要完成这样的艰巨的任务不是一般的計划、措施所能保证的,必须解放思想,打破迷信,发动群众研究新结构,研究新工艺,独創新办法,利用土办法大干巧干才行。 产品是我們生产的对象,一切生产活动是为完成产品品种和数量,提高产品质量和降低成本而进行的。所以产品发展方向和产品结构型式是生产厂的一个根本性的问题。
楼家法
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Through grain boundary segregation engineering, a crack‐free high‐strength CoCrNi medium‐entropy alloy (MEA) can be successfully fabricated via laser powder bed fusion (PBF‐LB). The influence of micron‐sized TiC particles on microstructural evolution, grain boundary segregation behavior, and mechanical properties was systematically ...
Cunliang Pan +9 more
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Dianci bileiqi, 2016 高压电瓷是电力网络中的重要器件,通过对高压电瓷产品按一定批量进行定期更换,能降低输电变电网的损耗,达到节能目的。构建了影响造价成本的参量模型和约束函数,采用非线性预测算法进行造价成本和电力网络产能预测,完成了采用非合作博弈纳什均衡方法实现对电网改造成本和电网均衡配比模型构建。仿真结果表明,用该模型进行电网改造,能有效节省造价成本的同时,提高了电力网络产能。
马涛
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