Results 31 to 40 of about 3,006 (216)

Partitioning Method of Virtual Microgrid Based on Electrical Coupling Strength [PDF]

open access: yes, 1978
© 2019 Automation of Electric Power Systems Press. With the fast development in the research of smart grid and Energy Internet, more and more distributed renewable energy and energy storage devices are connected into distribution networks, intelligent ...
Wu, C   +5 more
core   +4 more sources

工业型城市能源转型的综合评价——以苏州市为例 [PDF]

open access: yes全球能源互联网, 2021
城市能源转型的量化评价有助于城市经济社会的可持续发展,特别是对工业型城市能源系统的转型提供指导。但能源转型的综合评价面临多维度变量、多结构耦合以及多层次结构的挑战。以苏州市为例,提出基于解释结构模型及层次分析法的工业型城市能源转型的综合评价体系,在此基础上,通过二元对比,获得用于量化工业城市能源转型的综合评价模型。分析苏州2013—2018年的城市能源转型发展过程,得出苏州城市能源转型程度总体呈上升进步趋势,其中能源效率、能源结构、产业发展的进步最为显著,但电力自给率从79%下降至70 ...
王永真   +5 more
doaj   +1 more source

Bridging the digital divide for Native American tribes: Roadblocks to broadband and community resilience

open access: yesPolicy &Internet, Volume 15, Issue 3, Page 306-326, September 2023., 2023
Abstract Native American reservations are faced with a growing need for High‐speed Internet and broadband access but face a variety of barriers to broadband infrastructure deployment. This paper discusses the difficulties tribal nations have faced in developing their education, economy, and access to healthcare and public safety due to the roadblocks ...
Karina V. Korostelina, Jocelyn Barrett
wiley   +1 more source

“互联网+”智慧能源的再认识:基于熵视域 [PDF]

open access: yes全球能源互联网, 2023
“互联网+智慧能源”(即能源互联网)的发展理念,集中体现着数字化技术对能源系统的设计、运行和发展的全局优化。从能源系统热力学熵和信息系统信息熵的理论及视域,阐释能源互联网综合能源系统及其对应能源物联网的熵增与熵减机制。首先,在熵视域下揭示能源互联网所体现出的信息熵与热力学熵之间的内在关联,即通过信息的引入充分激发能量系统的自组织性,减少能源网络的无序程度。同时,以能源互联网范畴中的多能互补综合能源系统和数字孪生能源物联网为对象,以熵理论揭示信息物理融合系统中信息流与能量流的协同作用 ...
孙艳玲   +5 more
doaj   +1 more source

分布鲁棒优化在综合能源系统调度与规划中的应用综述 [PDF]

open access: yes, 2023
随着大量分布式电源、多能负荷等接入综合能源系统,源侧与荷侧的不确定性给综合能源系统规划与运行带来了挑战。如何针对这些不确定因子搭建相应的模型,形成安全、经济、高效的运行方案,是目前亟需解决的问题。从不确定性问题入手,系统阐述了分布鲁棒优化理论在综合能源系统中的应用,总结了其典型的应用场景,并与电力系统进行对比。其中,以基于矩信息和基于概率距离的分布鲁棒优化模型为例,从模型、求解方法以及应用等方面分析了各自的优缺点。最后,结合当前综合能源系统的发展趋势 ...
于馨玮, 仉志华, 陈继明*
core   +1 more source

WhatsApp supervision for a lay‐led Islamic trauma‐focused intervention in Somaliland: Qualitative content analysis

open access: yesJournal of Traumatic Stress, Volume 36, Issue 1, Page 59-70, February 2023., 2023
Abstract Clinical supervision is critical for the uptake of psychotherapy but difficult to facilitate in countries with limited providers, resources, and internet infrastructure. Innovative supervision approaches are needed to increase access to mental health treatments in low‐to‐middle income countries (LMICs).
Alexandra B. Klein   +16 more
wiley   +1 more source

煤电退出与电力系统转型规划——智利案例研究 [PDF]

open access: yes全球能源互联网, 2021
加快推动能源低碳转型、积极应对气候变化已成为全球共识。在英法德等国宣布退煤后,智利在2019年正式加入退煤行列,承诺在2040年退煤,2050年实现碳中和。大力开发风、光可再生能源资源,退役煤电,已成为智利实现清洁能源转型的重要一步。然而,智利煤电在电力供应结构中占比大,煤电的退出与清洁替代是电力供应结构的重大变革,将导致整个能源电力系统面临包括电力电量充裕性、可再生能源开发利用、电网输配能力、灵活性等多方面的困难和挑战。从电力供应发展的角度研究探讨了智利退煤和清洁能源转型的内在逻辑 ...
汪洋子   +5 more
doaj   +1 more source

基于CNN-Bi-LSTM功率预测的海岛综合能源系统优化调度 [PDF]

open access: yes, 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
core   +1 more source

Prescribed by law and therefore realized? Analyzing rules and their implied actor interactions as networks

open access: yesPolicy Studies Journal, Volume 50, Issue 2, Page 366-386, May 2022., 2022
Abstract Managing environmental problems requires cross‐sectoral and cross‐level collaboration among actors. Scholars of institutional arrangements investigate how rules shape such collaboration. Scholars of the Advocacy Coalition Framework (ACF) look for explanations for collaboration in actors' values and beliefs.
Laura Herzog   +2 more
wiley   +1 more source

适于PEM燃料电池的工业副产氢气纯化技术及其在电网中的应用前景 [PDF]

open access: yes全球能源互联网, 2021
质子交换膜(proton exchange membrane,PEM)氢燃料电池可提供灵活可控的清洁电力,用于并网发电可提高电网调峰能力。燃料电池运行需消耗高纯度氢气,工业副产氢气纯化的制氢方式相比于其他制氢方式具有价廉环保的优势,在电网大规模应用中前景广阔。综述了目前中国主要的工业副产氢气来源及其市场容量,并分析了各类工业副产氢气的杂质特点。对照PEM燃料电池对原料气的纯度要求及各类杂质对燃料电池性能的影响,综述了几种适于PEM燃料电池的副产氢气纯化技术及应用现状。最后 ...
宋小云   +5 more
doaj   +1 more source

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