Results 61 to 70 of about 111,171 (300)

A Novel Method for Screening the PMU Phase Angle Difference Data Based on Hyperplane Clustering

IEEE Access, 2019
Compared with the traditional supervisory control and data acquisition (SCADA) data, phasor measurement unit (PMU) data is characterized by phase angle measurement and high reporting speed (perhaps 100 Hz).
Ancheng Xue, Shuang Leng, Yecheng Li, Feiyang Xu, Kenneth E. Martin, Jingsong Xu   +5 more
doaj   +1 more source

Generation of second harmonic component of fault current in a doubly‐fed induction generator and mitigation measures for transformer protection

IET Renewable Power Generation, 2021
The transient characteristics of short‐circuit current (SCC) in doubly‐fed induction generator (DFIG) are quite different from the widely researched conventional synchronous machines.
Tao Zheng, Jingxian Yan, Jing Li, Xingguo Wang, Hongcheng Zhao, Sirui Wang   +5 more
doaj   +1 more source

Nano‐Scale Characterization of Impurities Segregation in Solid Oxide Electrolysis Cells

Advanced Functional Materials, EarlyView.
Cathodic polarization induces impurity segregation in Ni, forming an amorphous Na─Al─Si─O amorphous phase at grain boundaries. Under ultralow oxygen partial pressure, multiple elements dissolve, migrate, and reoxidize within the metal. A patterned model system provides direct nanoscale evidence, clarifying the mechanism of polarization‐driven impurity ...
Zhongtao Ma, Qingjie Wang, Bowen Li, Vasileios Bilalis, Søren Bredmose Simonsen, Ming Chen   +5 more
wiley   +1 more source

Renewable Energy for a Sustainable Future

, 2015
Dear colleagues,It is with great pleasure that we present to you our new international open accessed journal in the field of renewable energy. Renewable energy is a comprehensive and interdisciplinary area, which covers Chemistry, Biology, Chemical ...
Yang, Changyan
core   +2 more sources

Clusterization‐Triggered Emission from Cellulose‐Based Luminophores in Dilute Aqueous Solution through Imine Formation

Advanced Functional Materials, EarlyView.
Clusterization‐triggered emission is realized in dilute aqueous solution by introducing imine linkages into cellulose‐based luminophores. Imine functionalization creates O/N‐rich, hydrogen‐bonded clustered microenvironments that stabilize emissive states and restrict molecular motions. Luminescence is tunable by amine type and multiplicity.
Yazhou Su, Akihide Sugawara, Madhurangika Panchabashini Horathal Pedige, Youhei Takeda, Satoshi Minakata, Hiroshi Uyama   +5 more
wiley   +1 more source

Interaction energy-based power coupling oscillation analysis and suppression of grid-forming converter connected system

International Journal of Electrical Power & Energy Systems
The power coupling effect of the grid-forming converter will cause instability oscillation when it connects to low-voltage short-distance transmission lines. To solve this problem, this paper presents an energy interaction analysis method for oscillation
Yaqi Shen, Zhuoyang Li, Jing Ma, Letian Wang, Ningsai Su, Jialong Song   +5 more
doaj   +1 more source

A New Robust Identification Method for Transmission Line Parameters Based on ADALINE and IGG Method

IEEE Access, 2020
Accurate transmission line parameters are the basis of power system calculations. Aiming at obtaining accuracy online transmission line parameters in the case of large random noises even bad data in Phasor Measurement Unit (PMU) measurements, which ...
Ancheng Xue, He Kong, Yongzhao Lao, Quan Xu, Yuehuan Lin, Li Wang, Feiyang Xu, Shuang Leng, Zhiyong Yuan, Guoen Wei   +9 more
doaj   +1 more source

Hybrid diesel generator/renewable energy system performance modeling

, 2014
Published ArticleA Hybrid Energy System may been defined as a system in which different energy sources (solar, wind, hydro, diesel generator, etc.) as well as energy storage systems are interconnected to meet the load energy demand at any time.
Vermaak, Herman Jacobus, Kusakana, Kanzumba   +1 more
core  

A framework for reviewing the trade-offs between, renewable energy, food, feed and wood production at a local level [PDF]

, 2012
High fuel prices and concerns about energy security and anthropogenic climate change are encouraging a transition towards a low carbon economy. Although energy policy is typically set at a national level, tools are needed for people to engage with ...
Lord, Richard, Mead, Andrew, Cockerill, Tim, Howard, David C., Mead, A, Howard, DC, van der Horst, Dan, Burgess, P. J., Rivas Casado, Monica, Lord, R, Lord, Richard A, Gavu, Jerry, Tim Cockerill, Burgess, Paul J., Mead, A. (Andrew), Burgess, PJ, Burgess, Paul J, Andrew Mead, David C. Howard, Howard, David C, Gavu, J, Monica Rivas Casado, Cockerill, T, Casado, Monica Rivas, Richard Lord, Rivas Casado, M, Paul J. Burgess, Howard, D. C., Dan van der Horst, Jerry Gavu   +29 more
core   +1 more source

Wood Cellulosic Membrane With Abundant Nanochannels for Stabilizing Aqueous Zn‐Ion Batteries

Advanced Functional Materials, EarlyView.
A wood‐derived cellulosic membrane separator is developed to suppress dendrite growth in aqueous zinc‐ion batteries. Its aligned nanochannels and hydroxyl‐rich surfaces enable uniform Zn2+ flux, water immobilization, and interfacial stabilization. Zn||Zn cells achieve 1920 h of cycling, Zn||Cu cells maintain 99.5% Coulombic efficiency over 1000 cycles,
Song Wei, Yunpeng Zhong, Ruwei Chen, Shanshan Jia, Hongping Dong, Zhen Zhang, Lei Li, Yiqiang Wu, Guanjie He   +8 more
wiley   +1 more source