Results 31 to 40 of about 3,047 (168)

Research on Design Optimization of Offshore Booster Stations [PDF]

open access: yes, 2023
[Introduction] In recent years, China has put into operation a large number of offshore booster stations and accumulated rich experience in the construction and operation of offshore booster stations.
Binrui ZHANG, Lei SU, Xiaogang WANG
core   +1 more source

基于CVaR的灵活综合能源系统随机调度优化模型 [PDF]

open access: yes全球能源互联网, 2020
综合能源系统(integrated energy system,IES)可以满足园区冷、热、电等多种能源互补的需求,实现多能耦合,进一步提升能源的利用效率。但伴随光伏和风电等可再生能源发电设备的广泛接入,其不确定性和间歇性使得综合能源系统供给灵活性降低、运行风险增大,不能有效提升可再生能源的使用效率。以系统运行成本、碳排放惩罚成本最小为目标,分析了冷热电联供对系统运行效率的影响,同时引入模糊C均值-聚类综合质量法(FCM-CCQ)对风电及光伏的出力场景进行聚类分析,运用条件风险价值 ...
张萌萌, 董军
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

Reflections and explorations on deep earth science and deep earth engineering technology [PDF]

open access: yes, 2023
Deep earth science in the 21st century has entered a new stage of development. The laws of deep earth science have not yet been explored. Deep engineering activities generally have a certain degree of blindness, inefficiency and uncertainty, and the ...
Cong LI   +7 more
core   +1 more source

Evaluation and difference analysis of multi-functional land use of farmers in suburban tourism areas from the perspective of livelihood types(生计类型视角下城郊乡村旅游地农户土地多功能利用评价及其差异分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2023
不同生计类型视角下的土地多功能利用水平与差异研究是深入推进旅游与土地融合发展,协调城郊旅游发展用地矛盾的重要途径。以长沙城郊乡村旅游地为研究区域,基于参与式农村评估、熵权法、区位熵等方法,探究城郊乡村旅游地不同生计类型农户土地多功能利用水平、优势度及其差异性特征。结果表明:(1)不同生计类型农户土地多功能利用水平存在差异。非旅型土地经济功能、生态功能水平最高,旅专型社会功能水平最高。(2)不同生计类型农户土地多功能利用内部功能权衡协同分异显著。非旅型经济功能与社会功能的权衡冲突最明显。兼旅型 ...
罗文斌(LUO Wenbin)   +4 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

Study on Uncertainty Operation Optimization of Virtual Power Plant Based on Intelligent Prediction Model Under Climate Change [PDF]

open access: yes, 2023
In order to effectively cope with climate change and promote the healthy development of virtual power plant, an uncertainty operation optimization model of virtual power plant (VPP) adapted to climate change was proposed based on the providing regional ...
DU Jiao   +4 more
core   +1 more source

西南跨流域水风光协同开发研究 [PDF]

open access: yes全球能源互联网, 2023
随着风、光新能源装机占比逐渐提高,电力系统灵活性需求不断增加,对水电发挥灵活调节能力提出了更高要求,仅在电站或流域层面开展水风光协同开发难以充分发挥水电灵活性价值,无法满足系统调节需求。因此,需要从系统层面出发,开展跨流域水风光协同开发研究,通过扩大水风光互补范围,最大程度发挥水电调节能力作用。通过构建跨流域水风光协同规划模型,量化分析西南地区八大流域干流水电可支撑新能源开发消纳的潜力。结果表明,与流域级水风光协同开发相比,西南地区跨流域水风光协同开发可大幅提升新能源装机规模及消纳电量 ...
刘泽洪   +5 more
doaj   +1 more source

考虑综合需求响应的园区综合能源系统优化配置

open access: yesGaoya dianqi, 2021
园区综合能源系统是用户侧多能源耦合与供应的典型形式,而综合需求响应(integrated demand response,IDR)则是实现多种能源间耦合互补关系的重要应用,而目前的园区综合能源系统规划研究并未考虑IDR的应用。为了进一步激发园区综合能源系统中的多能互补特性,提升规划的灵活性和经济性,文中提出了一种考虑综合需求响应的园区综合能源系统优化配置模型,其在建立PIES内部各能量转换设备和能量存储设备数学模型的基础上,以包含投资、运行、维护和IDR成本的全寿命周期成本最小为目标函数进行建模 ...
高强   +5 more
doaj  

Analysis of Power Generation Technology Trend in 14th Five-Year Plan Under the Background of Carbon Peak and Carbon Neutrality [PDF]

open access: yes, 2022
The deep decarbonization of the energy and power industry will play a vital role in achieving the goal of carbon peak and carbon neutrality in China, and the important breakthrough point lies in the innovation of science and technology.
FENG Yiming   +4 more
core   +1 more source

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