检索范围:
排序: 展示方式:
K Sathish KUMAR,S NAVEEN
《能源前沿(英文)》 2014年 第8卷 第4期 页码 434-442 doi: 10.1007/s11708-014-0313-y
关键词: distribution system reconfiguration (DFR) power loss reduction catfish particle swarm optimization (catfish PSO) radial structure
Power fluctuation and power loss of wind turbines due to wind shear and tower shadow
Binrong WEN, Sha WEI, Kexiang WEI, Wenxian YANG, Zhike PENG, Fulei CHU
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 321-332 doi: 10.1007/s11465-017-0434-1
The magnitude and stability of power output are two key indices of wind turbines. This study investigates the effects of wind shear and tower shadow on power output in terms of power fluctuation and power loss to estimate the capacity and quality of the power generated by a wind turbine. First, wind speed models, particularly the wind shear model and the tower shadow model, are described in detail. The widely accepted tower shadow model is modified in view of the cone-shaped towers of modern large-scale wind turbines. Power fluctuation and power loss due to wind shear and tower shadow are analyzed by performing theoretical calculations and case analysis within the framework of a modified version of blade element momentum theory. Results indicate that power fluctuation is mainly caused by tower shadow, whereas power loss is primarily induced by wind shear. Under steady wind conditions, power loss can be divided into wind farm loss and rotor loss. Wind farm loss is constant at 3α(3α−1)R2/(8H2). By contrast, rotor loss is strongly influenced by the wind turbine control strategies and wind speed. That is, when the wind speed is measured in a region where a variable-speed controller works, the rotor loss stabilizes around zero, but when the wind speed is measured in a region where the blade pitch controller works, the rotor loss increases as the wind speed intensifies. The results of this study can serve as a reference for accurate power estimation and strategy development to mitigate the fluctuations in aerodynamic loads and power output due to wind shear and tower shadow.
关键词: wind turbine wind shear tower shadow power fluctuation power loss
Veera Venkata Satya Naryana MURTY, Ashwani KUMAR
《能源前沿(英文)》 2013年 第7卷 第2期 页码 197-213 doi: 10.1007/s11708-013-0249-7
关键词: load growth load models reactive power compensation radial distribution system power loss index (PLI) power loss sensitivity (PLS) index vector (IV)
Honglun YANG, Qiliang WANG, Jingyu CAO, Gang PEI, Jing LI
《能源前沿(英文)》 2020年 第14卷 第4期 页码 867-881 doi: 10.1007/s11708-020-0707-y
关键词: concentrated solar power parabolic trough receiver heat loss solar energy annual performance
Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR
《能源前沿(英文)》 2014年 第8卷 第4期 页码 464-479 doi: 10.1007/s11708-014-0307-9
关键词: fuzzy logic maximum power point tracking (MPPT) proportional integral (PI) control voltage restorer
Will Germany move into a situation with unsecured power supply?
Harald SCHWARZ
《能源前沿(英文)》 2019年 第13卷 第3期 页码 551-570 doi: 10.1007/s11708-019-0641-z
关键词: CO2 reduction mobility sector renewable generation coal commission secured power generation capacity reliable power supply power-to-gas power-to-heat
Constriction factor based particle swarm optimization for analyzing tuned reactive power dispatch
Syamasree BISWAS(RAHA), Kamal Krishna MANDAL, Niladri CHAKRABORTY
《能源前沿(英文)》 2013年 第7卷 第2期 页码 174-181 doi: 10.1007/s11708-013-0246-x
关键词: real power loss minimization voltage stability constriction factor particle swarm optimization (PSO)
Iraj AHMADIAN,Oveis ABEDINIA,Noradin GHADIMI
《能源前沿(英文)》 2014年 第8卷 第4期 页码 412-425 doi: 10.1007/s11708-014-0315-9
关键词: component distributed energy resources fuzzy optimization loss reduction interactive honey bee mating optimization (IHBMO) voltage deviation reduction stochastic programming
Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng
《化学科学与工程前沿(英文)》 2021年 第15卷 第1期 页码 18-34 doi: 10.1007/s11705-020-1939-4
关键词: dielectric capacitors polymer-based dielectrics energy density dielectric loss working temperature frequency response
《医学前沿(英文)》 doi: 10.1007/s11684-023-1006-x
关键词: neurodevelopmental disorder autosomal recessive intellectual disability consanguinity spastic paraplegia hearing loss TMEM141
The R&D of Flue Gas Pollutants Deep-Removal Technology for Coal-fired Power Plants
Xiao-lu Zhang
《工程管理前沿(英文)》 2015年 第2卷 第4期 页码 359-363 doi: 10.15302/J-FEM-2015057
关键词: coal-fired power plant pollutants emission reduction PM2.5 flue gas pollutants deep-removal
在现场可编程门阵列中用于降低泄漏功率的动态电源门控 Research Article
Hadi JAHANIRAD
《信息与电子工程前沿(英文)》 2023年 第24卷 第4期 页码 582-598 doi: 10.1631/FITEE.2200084
Peng ZHENG, Xuan YAO, Wei ZHENG
《能源前沿(英文)》 2013年 第7卷 第1期 页码 127-132 doi: 10.1007/s11708-012-0225-7
关键词: urea hydrolyser ammonia selective catalytic reduction (SCR)
包起帆
《中国工程科学》 2011年 第13卷 第9期 页码 63-68
描述的一种移动式岸基船用变频变压供电系统利用集装箱码头前沿为桥吊运行配备10 kV/50 Hz/2 000 kV ·A的高压电源,经过变压和变频为靠港船舶提供450 V/60 Hz电源。该方案灵活性强,节能减排效果明显,且无需对码头进行土木改造,为我国作业繁忙的集装箱码头实现岸基供电提供新方案。
Turnover and loss of nitrogenous compounds during composting of food wastes
YANG Yanmei, ZHANG Xiangfeng, YANG Zhifeng, XI Beidou, LIU Hongliang
《环境科学与工程前沿(英文)》 2008年 第2卷 第2期 页码 251-256 doi: 10.1007/s11783-008-0042-8
标题 作者 时间 类型 操作
Power system reconfiguration and loss minimization for a distribution systems using “Catfish PSO” algorithm
K Sathish KUMAR,S NAVEEN
期刊论文
Power fluctuation and power loss of wind turbines due to wind shear and tower shadow
Binrong WEN, Sha WEI, Kexiang WEI, Wenxian YANG, Zhike PENG, Fulei CHU
期刊论文
Comparison of optimal capacitor placement methods in radial distribution system with load growth and ZIP load model
Veera Venkata Satya Naryana MURTY, Ashwani KUMAR
期刊论文
Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough
Honglun YANG, Qiliang WANG, Jingyu CAO, Gang PEI, Jing LI
期刊论文
THD reduction with reactive power compensation for fuzzy logic DVR based solar PV grid connected system
Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR
期刊论文
Constriction factor based particle swarm optimization for analyzing tuned reactive power dispatch
Syamasree BISWAS(RAHA), Kamal Krishna MANDAL, Niladri CHAKRABORTY
期刊论文
Fuzzy stochastic long-term model with consideration of uncertainties for deployment of distributed energy resources using interactive honey bee mating optimization
Iraj AHMADIAN,Oveis ABEDINIA,Noradin GHADIMI
期刊论文
Review of recent advances of polymer based dielectrics for high-energy storage in electronic power devices
Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng
期刊论文
Panoramic variation analysis of a family with neurodevelopmental disorders caused by biallelic loss-of-function
期刊论文
The R&D of Flue Gas Pollutants Deep-Removal Technology for Coal-fired Power Plants
Xiao-lu Zhang
期刊论文
Design guidelines for urea hydrolysers for ammonia demand of the SCR DENOX project in coal-fired power
Peng ZHENG, Xuan YAO, Wei ZHENG
期刊论文