Results 31 to 40 of about 4,850 (198)

基于联盟链的去中心化能源交易系统 [PDF]

open access: yes全球能源互联网, 2019
随着分布式能源的快速发展,传统的中心化能源交易系统遇到了建造和维护中心化数据库的成本较高、数据被篡改后会酿成严重后果和难以保障用户隐私这三大问题。针对这些问题,设计了一种基于联盟链的去中心化能源交易系统。首先,分析了该系统的组成部分,利用联盟链的准入机制对用户进行监管。介绍了该系统的交易流程,包括网络节点的配置,使用数字证书注册管理员和用户,借鉴链上链下协同架构实现分布式交易撮合等。接着,介绍了该系统使用的分布式交易撮合算法。然后,利用Hyperledger Fabric平台研发了该系统 ...
周鑫, 邓莉荣, 王彬, 潘昭光
doaj   +1 more source

Control strategy research for PV DC microgrid with hybrid storage system [PDF]

open access: yes, 2016
以光伏、风电等可再生能源为主的分布式发电技术因为其随机性、不稳定性,对配电网潮流改变带来的安全性等问题,其发展得到一定的制约。微电网被广泛认为是解决分布式发电技术应用瓶颈的有效解决方案,而直流微电网以直流形式传输电能,控制结构简单,不需考虑频率和相位,系统损耗小,效率高,也更加适合越来越多的直流电器的接入,因此具有很强的推广实用价值。本文在研究了直流微电网的国内外研究发展现状、架构,以及包括控制技术、储能技术、保护技术等关键技术基础上,对包含有蓄电池和超级电容器在内的光伏直流微电网系统进行了研究 ...
杨贇
core  

Research on Fault Location in Integrated Energy Systems Based on Improved Binary Particle Swarm Optimization Algorithm [PDF]

open access: yes
ObjectivesThe coverage of power systems continues to expand, and the structure of integrated energy systems is becoming increasingly complex. This trend leads to a significant decline in the accuracy of fault location in the distribution network that is ...
GAO Yang   +5 more
core   +1 more source

Tantalum‐Driven Interfacial Reconstruction Enables Ultra‐Low Contact Resistance in TiAlTa/Au GaN HEMTs

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The transformative potential of gallium nitride high electron mobility transistors (GaN HEMTs) in advancing carbon‐neutral power systems remains bottlenecked by contact resistance (Rc) at the metal–semiconductor (M‐S) interface, a critical determinant of switching losses and frequency response.
Ji‐Zhou Zhang   +8 more
wiley   +1 more source

基于改进和声搜索算法的有源配电网优化调度

open access: yesGaoya dianqi, 2021
优化调度策略是有源配电网对分布式能源实施主动管理的核心技术,也是有源配电网安全经济运行的重要保障。文中以不同类型分布式电源的出力为控制变量,构建了突出电压质量提升和运行成本降低为目标的模糊化调度模型。引入均匀分布的初始和声库及变维数和声记忆库对基本和声搜索算法的改进用于调度模型的求解。通过IEEE33节点系统上的大量仿真测试和比较分析,验证了所建立的优化调度模型和改进算法的正确性和有效性。
段建东   +4 more
doaj  

Optimal Configuration of Distributed Generation Considering Carbon Trading and Reactive Power Compensation [PDF]

open access: yes
Under the background of “double carbon”, the introduction of carbon trading and reactive power compensation mechanism in the planning of distributed generation is an important means to realize the low-carbon and stability of power system.
CHU Zhuang, SUN Jianhao
core   +1 more source

In Situ MOF Pyrolysis Construction of Hierarchical Porous Co‐Nanoparticles/Carbon Cloth Composites for Enhanced Electromagnetic Wave Shielding and Absorption

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du   +9 more
wiley   +1 more source

Governing the Ungovernable: Mapping the Development of Groundwater Irrigation and Groundwater Policies in India

open access: yesWorld Water Policy, Volume 11, Issue 4, Page 1048-1064, November 2025.
ABSTRACT Groundwater governance is complex due to several externalities associated with groundwater being an invisible natural resource tied to the land with millions of extractors and limited means of exclusion. The paper traces the evolution of groundwater irrigation in India and the corresponding change in groundwater laws and policies to address ...
Anindita Sarkar, Amrita Sarkar
wiley   +1 more source

The study of bidirectional DC-DC converter in the DC microgrid [PDF]

open access: yes, 2016
作为新能源的有效利用方式之一的直流微电网没有无功功率的损耗,不需要跟踪频率和相位,可靠性和可控性有较大程度的提高,更适合分布式能源的接入和应用。双向DC-DC变换器承担着母线与储能之间能量双向流动的重要作用。同时,它还可以作为直流微电网之间的互联元件,具有十分重要的研究价值。 本文针对全桥拓扑结构的双向DC-DC变换器展开较为深入的研究。 首先,详细分析了在移相控制方式下,双向DC-DC变换器的在降压方向和升压方向的工作原理及零电压开关(ZVS,Zerovoltageswitching)的具体过程 ...
纪承承
core  

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

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