Results 51 to 60 of about 8,357 (239)

Laser‐Textured Field‐Engineered Interface for Robust Dry‐Processed Cathodes in Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Laser‐patterned dry electrodes applied to current collectors could serve as a promising alternative to the limitations of conventional dry electrodes. Laser technology provides a fast and simple method to enhance the surface roughness of current collectors, improving the adhesion at the electrode–current collector interface.
Chaerin Jung, Jinyeong Choi, Minsu Kim, Chaerim Kim, Minbong Park, Byungjoon Lee, Jae Ho Kim, Jin Hong Lee, Minjoon Park   +8 more
wiley   +1 more source

Feature statistics and analysis of transient overvoltage waveform measured from 220 kV substation

International Journal of Electrical Power & Energy Systems
The electromagnetic transient overvoltage in the substation is an important factor that affects the life of insulation equipment. For evaluate the economy and reliability of the insulation design of substation equipment, it is necessary to study and ...
Chenmeng Zhang, Shijun Xie, Qiang Chen, Zhou Mu, Yalong Xia, Lieguo Zhou, Yong Ouyang, Jianjun Zhang   +7 more
doaj   +1 more source

Identifying Faults in Power Transformers Based on Machine‐Learning Algorithms Compared With Other Techniques

Energy Science &Engineering, EarlyView.
General framework of ensemble learning technique for transformer fault diagnostics compared with traditional dissolved gas analysis methods. ABSTRACT This paper implemented a comprehensive variety of modern machine‐learning techniques, which were demonstrated to be effective in handling complex tabular data, generating accurate predictions, and ...
Osama E. Gouda, Nourhan Ramadan, Matti Lehtonen, Mohamed M. F. Darwish   +3 more
wiley   +1 more source

Smart Charging With Hourly Pricing as Policy Intervention: Reducing Costs and Grid Congestion for Promoting Electric Vehicles in Developing Countries

Energy Science &Engineering, EarlyView.
Smart charging with hourly pricing optimizes electric vehicle (EV) charging in developing countries, reducing EV owner costs by 30% and easing grid congestion. Using an agent‐based energy management system, the study shows dynamic pricing effectively shifts charging to off‐peak hours, enhancing grid stability and supporting sustainable EV adoption in ...
Maha Iftikhar, Kashif Imran, Farah Ul Ain, Abdul Kashif Janjua, Rimsha Razaq, Sohail Khan, Arqam Ilyas, Shahbaz Ul Haq, Muhammad Akmal   +8 more
wiley   +1 more source

A New Method to Overvoltage Restrain of ElectricLocomotive Passing the Neutral Section

机车电传动, 2013
Overvoltage problem caused by electric locomotive passing the neutral section, always result in traction substation trip or the arc eroding the contact line.
LI Zong-lei, LIU Ming-guang, QU Zhi-jian, WANG Hai-jiao   +3 more
doaj  

Addressing Overvoltage Protection for High Voltage Loads

, 2016
In most of the electrical systems mainly the damage is caused by overvoltage and excess current. This paper addresses the methods and issues related with the overvoltage protection for high voltage loads.
, Shahera S. Patel
core   +1 more source

Evaluation Methodology, Numerical Verification and Retrofilling Procedure for Power Transformers to Ensure K‐Class Flame Retardancy and Environmentally Friendly

High Voltage, EarlyView.
ABSTRACT With increasing demands for fire safety and environmental friendliness, retrofilling transformers with alternative insulating liquids has become a growing trend. However, retrofilling power transformers remains uncertain, as more residual mineral oil compromises K‐class flame retardancy, and its impact on environmental performance has yet to ...
Zhenfu Tang, Yihua Qian, Dan Zhou, Wei Hu, Feipeng Wang, Yang Xu   +5 more
wiley   +1 more source

Mechanism Analysis and Simulation Study of Closing Overvoltage Fault in EMU Circuit Breaker

Chengshi guidao jiaotong yanjiu
Objective The overvoltage caused by circuit breaker closing will aggravate the insulation aging of high voltage equipment when EMU (electric multiple units)passes neutral section.
ZHANG Mingrui, ZHANG Ningchuan, LIU Zhengwei   +2 more
doaj   +1 more source

Correlated Transient Response of Buried Cables and Lightning Channel Radiation of Return Strokes of Five Rocket‐Triggered Lightning Strikes

High Voltage, EarlyView.
ABSTRACT Data from five rocket‐triggered lightning flashes are adopted to analyse the correlated transient response of buried cables and lightning channel radiations. These five flashes have the same termination point that is right above the buried cables and involve a total of 32 return strokes.
Mi Zhou, Xiaoyu Lei, Li Cai, Jianguo Wang, Weihan Zhao, Jinxin Cao, Denglei Duan, Maorong Geng, Yadong Fan, Jianping Wang   +9 more
wiley   +1 more source

Power operation region modeling and transient overvoltage suppression strategy of hybrid cascaded HVDC

International Journal of Electrical Power & Energy Systems
The hybrid cascaded HVDC system(HC-HVDC) in sending end system is composed of an Line Commutated Converter(LCC) connected in series with a parallel group of Modular Multilevel Converters (MMC).
Jiangshan Liu, Fengting Li, Chunya Yin, Ruikang Chen, Lu Han, Yingping Shi   +5 more
doaj   +1 more source