Results 41 to 50 of about 2,938 (184)

Metaverse Application in Power Systems [PDF]

open access: yes, 2022
Metaverse is a new internet application and social form of virtual reality integration which is produced by integrating a variety of new technologies.
LI Guangdi, XI Chao, YANG Bo, ZHOU Bowen
core   +1 more source

基于模型预测控制的光储发电系统VSG频率控制方法 [PDF]

open access: yes, 2022
随着光伏发电装机规模大幅提升,电力系统转动惯量不断降低,虚拟同步发电机(virtual synchronous generator,VSG)技术被广泛采用以应对日益严峻的电网稳定性问题。为进一步提高VSG技术对系统稳定性的改善作用,提出基于模型预测控制的VSG频率控制方法。该方法首先在同步发电机转子运动方程和逆变器下垂控制方程基础上建立VSG可优化的离散模型,再通过模型预测控制(model predictive control,MPC)预测VSG转子角频率的运动轨迹 ...
张志丹   +3 more
core   +1 more source

亚油酸分离纯化技术研究进展Progress on separation and purification technology of linoleic acid

open access: yesZhongguo youzhi, 2022
亚油酸属ω-6型多不饱和脂肪酸,具有独特的生理功能,与人体健康密切相关。由于亚油酸大多来源于天然动植物油脂,其含量尚不能满足食品和制药业的需求,有效分离纯化亚油酸已成为近年来的研究热点。为给亚油酸的分离纯化研究提供参考,综述了近年来国内外亚油酸分离纯化技术的研究进展,系统介绍了尿素包合法、硝酸银硅胶柱色谱法、分子蒸馏法、脂肪酶酶解法、溶剂冷冻结晶法、高速逆流色谱法及耦合法的分离原理及研究成果,并分析了各分离纯化方法的优缺点。两种或多种分离纯化技术耦合可优势互补,提高分离效率,淀粉 ...
白希,陈爽,周灿兰,柏茹梦,平宇杰,杜为军 BAI Xi,CHEN Shuang, ZHOU Canlan,BAI Rumeng, PING Yujie, DU Weijun
doaj   +1 more source

MPSoC mapping and scheduling approach with multi-grained communication optimizations(多粒度通信优化的MPSoC调度映射策略)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2017
随着嵌入式系统处理器核数的增加,映射与调度成为软件开发的关键.为了提升系统性能,需要格外关注映射与调度过程中的通信开销.现有的粗粒度系统级或细粒度线程级通信优化虽然能提升性能,但都各有缺陷.为此,提出了基于整数线性规划的用于Simulink模型的多粒度通信优化映射与调度策略,将不同粒度的通信优化方法相结合,实现优势互补.实验结果表明,该方法能有效提高系统的整体性能.
CAITiantian(蔡田田)   +4 more
doaj   +1 more source

水电站跨省跨区月度合同电量曲线分解模型 [PDF]

open access: yes, 2023
水电站跨省跨区送电涉及多省份、多品种、多时间尺度等多维度电量曲线分解,且需要考虑复杂的电网调峰等需求,是电站每月发电运行中亟待解决的重要难题。依托实际工程的生产需求,构建了适合跨省、跨区送电的水电站月度合同电量曲线分解模型,考虑保量保价、保量竞价、市场化三类品种电价差异,以及电网调峰、市场和电站运行复杂约束,提出了多省多品种发电收益总和最大的二次规划目标,并采用混合整数线性规划方法实现了模型高效求解。以溪洛渡右岸水电站为依托工程,通过枯期、汛期两个不同的应用场景进行了模型验证 ...
徐天遥   +6 more
core   +1 more source

Optimization configuration of coal mine multi-energy complementary heat and power coordinated supply system in western China [PDF]

open access: yes
With the advancement of the “dual-carbon”goal, utilizing renewable energy resources to reduce carbon emissions in the coal mining process has become a significant development trend.However, the construction of mine multi-energy complementary systems ...
Jin WU   +6 more
core   +1 more source

考虑数据中心和分布式能源接入的配电网双层规划方法 [PDF]

open access: yes, 2023
在大数据时代背景下,社会对数据处理需求的增加导致电网中数据中心的负荷不断增长,若按数据中心原始负荷接入电网,会对配电网运行产生较大的负担。而数据中心的批处理负载与配备的储能设备决定了其可以作为灵活性负荷接入电网参与需求响应。通过选取包含数据中心、常规负荷与光伏机组的配电网作为研究对象,采用双层规划方法建立了考虑数据中心运行灵活性和分布式光伏接入的配电网规划模型,上层模型以最小化配电网系统的规划与运行成本为目标,对配电网线路以及其内部的光伏机组与燃气轮机容量进行规划 ...
徐衍会   +4 more
core   +1 more source

Community‐informed and codesigned research to understand the impacts of railways on wildlife

open access: yesConservation Biology, EarlyView.
Abstract Trains cause mortalities of several animal species, but the ecological impacts of railways are understudied. Most research on wildlife–train collisions has focused on large mammals, but understanding railway‐specific risks for underrepresented taxa, especially vulnerable species, is important for developing effective mitigation strategies ...
Kyle D. Vincent   +5 more
wiley   +1 more source

Using lessons from criminal justice research to improve conservation law enforcement research and practice

open access: yesConservation Biology, EarlyView.
Abstract Urgency to save species from extinction has prompted increased investment in law enforcement in protected areas. To date, such law enforcement has largely focused on increasing costs and reducing opportunities for offending. However, these resource‐intensive approaches are not always effective and can contribute to conflict between people and ...
Freya A. V. St. John   +3 more
wiley   +1 more source

Current Status and Prospect of Membrane-Based Offshore Floating Photovoltaic Technology [PDF]

open access: yes, 2023
[Introduction] The research and development of offshore floating photovoltaic complies with the needs of national energy strategic development, caters to the background of industry development led by science and technology, and helps the development of ...
Bo LIU, Gang LI, Hong QIAO, Jiping CHEN
core   +1 more source

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