Results 21 to 30 of about 2,061 (147)

Heat Transfer Enhancement of a Cascaded Latent Heat Thermal Energy Storage System by Fins With Different Uneven Layouts [PDF]

open access: yes, 2022
The cascaded latent heat thermal energy storage (CLH-TES) is a kind of thermal energy storage technology with promising commercial prospects. The heat transfer enhancement of CLH-TES system by adding uneven number/height of fins for different phase ...
LI Pengda   +4 more
core   +1 more source

基于高温电解的大规模电力储能技术 [PDF]

open access: yes全球能源互联网, 2018
电转气技术(power to gas,P2G)是实现中国可再生能源大规模消纳的潜在方案,其核心电解技术按照工作温度可划分为低温与高温电解两类,其中高温电解电池具有转换效率高、转换产物丰富以及支持可逆运行等优势,是未来能源与电力系统中极具吸引力的规模化储能技术。文章主要从电池结构、转换模式、系统接入等方面介绍高温电解技术的特点及其在电力储能中的潜在应用。电池结构方面,新兴的扁管式结构兼具了板式与管式的结构优点;转换模式方面,高温电解池可单独制取H2或CO,也可共电解直接合成CH4;系统接入方面 ...
邢学韬   +7 more
doaj   +1 more source

Research on Reasonable Consumption Rate of New Energy Transmission Under the New Power System [PDF]

open access: yes, 2023
[Introduction] Large-scale new energy penetration is an important feature of the new power system. There is a certain contradiction between the high proportion of new energy consumption and the safe, economical and efficient operation of power system ...
Buyun SU, Shichao WANG
core   +1 more source

弱交流系统高压直流50 Hz保护的优化措施研究 [PDF]

open access: yes全球能源互联网, 2019
虚拟电厂不仅能够提高可再生能源在电力系统中的接入比例,转变能源结构,也可以通过对储能系统以及对电动汽车和居民可控负荷等需求侧资源的优化调度提高分布式电源的消纳能力。然而,随着虚拟电厂用户侧可再生能源和各种灵活负荷的广泛接入,往往会出现配电系统的线路潮流越限,导致线路发生阻塞,造成事故扩大,影响系统的安全稳定运行。针对此问题,研究了虚拟电厂安全校正优化问题,建立了基于技术型虚拟电厂的配电网阻塞管理模型,并以实际算例验证了该模型的有效性。
徐斌   +4 more
doaj   +1 more source

Research on Optimal Allocation of Multi-Energy Complementary Project of Wind-Solar-Thermal Integration [PDF]

open access: yes, 2022
Multi-energy complementary project of wind-solar-thermal integration can play a coordinating and mutually beneficial role among different generations, and is one of the implementation paths for safe and efficient use of renewable energy, and achieving ...
BI Sheng   +5 more
core   +1 more source

基于随机生产模拟的火电机组深度调峰提升新能源消纳能力评估方法 [PDF]

open access: yes全球能源互联网, 2019
中国许多地区已经开展火电机组深度调峰辅助可再生能源消纳的试点工作,但基于场景的时序模拟方法在分析其调峰效果时受到各类不确定因素影响,难以覆盖所有的运行场景,导致中长期评估结果准确性不高。因此,时序方法不适用于缺少详细时序数据的电源容量规划。为此基于随机生产模拟方法,面向规划应用提出了一种火电深度调峰提升系统可再生能源消纳效果的评估方法。该方法建立了包括非供热火电机组、热电联产机组和风电等电源在内的供给侧概率模型,分析了在不同火电深度调峰方式下,系统负荷、可再生能源发电的概率特性变化 ...
马彦宏   +4 more
doaj   +1 more source

基于技术型虚拟电厂的配电网阻塞管理 [PDF]

open access: yes全球能源互联网, 2019
虚拟电厂不仅能够提高可再生能源在电力系统中的接入比例,转变能源结构,也可以通过对储能系统以及对电动汽车和居民可控负荷等需求侧资源的优化调度提高分布式电源的消纳能力。然而,随着虚拟电厂用户侧可再生能源和各种灵活负荷的广泛接入,往往会出现配电系统的线路潮流越限,导致线路发生阻塞,造成事故扩大,影响系统的安全稳定运行。针对此问题,研究了虚拟电厂安全校正优化问题,建立了基于技术型虚拟电厂的配电网阻塞管理模型,并以实际算例验证了该模型的有效性。
周宇   +5 more
doaj   +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

Electricity Transmission Strategy Research Based on Wind-Coal-Battery-Hydrogen-CCUS Multi Energy Coupling and Bundling System [PDF]

open access: yes, 2023
[Introduction] In order to guarantee urban power supply and offshore wind power utilization without building new power lines, the paper aims to establish a electricity transmission strategy based on wind-coal-battery- hydrogen -CCUS multi energy coupling
Jiamin YIN   +7 more
core   +1 more source

“东数西算”背景下数据中心碳减排效益分析

open access: yes大数据, 2023
作为算力承接地,西部地区拥有丰厚的自然资源禀赋,需充分发挥其在能源、气候等方面的优势。“东数西算”背景下,数据中心急需对算力转移过程的碳减排效益进行量化分析。在考虑可再生能源、气候因素和传输过程3个影响因素的情况下,构建了数据中心工作负载转移的碳排放量核算模型,以“东数西算”八大节点为例进行算例分析。结果发现,相较于可再生能源和气候因素所减少的碳排放量,传输过程造成的额外碳排放量微乎其微,在仅考虑前两者的情况下,每转移1 kW·h的工作负载,碳排放量可减少0.053~0.344 kg ...
周瑜, 张炜乐, 段婉婷
doaj   +1 more source

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