Results 41 to 50 of about 8,340 (218)

A Calculation Method for Line Harmonic Current Based on Three-Terminal HVDC Transmission System

Zhongguo dianli, 2021
In view of the potential problem of harmonic current amplification of overhead transmission lines in three-terminal DC transmission system, a study is conducted on the harmonic current of bipolar overhead lines under different operating modes.
Jiaying CUI, Tianqi LIU, Shunliang WANG, Junpeng MA, Pengfei CHANG   +4 more
doaj   +1 more source

Extreme Bond Ionicity in Mg─Te Chalcogenides for Ultrathin Low Voltage Selector‐Only Memory beyond the Leakage Scaling Limit

Advanced Materials, EarlyView.
Mg─Te chalcogenides address the leakage scaling trade‐off in ultrathin selector‐only memory. Structural partitioning in multiphase Mg─Te, combined with highly ionic Mg─Te bonding and Hf interfacial engineering, supports reliable 5 nm thickness operation at low write voltage with suppressed leakage current, narrow threshold voltage distributions, 10 ns ...
Yoori Seo, Dongmin Kim, Yu Bin Park, Jangseop Lee, Tae Hoon Lee, Hyunsang Hwang   +5 more
wiley   +1 more source

Research on dynamic capacity expansion system of overhead distribution lines based on wireless sensor

Diance yu yibiao
In the context of the construction of novel power systems, the thermal stability limit capacity of overhead distribution lines, especially the transmission capacity of interconnected lines in N-1 mode, has become a bottleneck that restricts the flexible ...
ZHANG Shusen, SUN Jianchao, JIANG Huahua, LI Lei, YANG Changqing, YUAN Jiawei   +5 more
doaj   +1 more source

Galloping Equation and Primary Resonance Investigation of Overhead Transmission Lines

Zhongguo dianli, 2021
The galloping of overhead transmission lines is one of the main causes for line damages. How to accurately describe the galloping of transmission lines is a worthy topic.
Guangyun MIN, Xiaohui LIU, Ceshi SUN, Mengqi CAI   +3 more
doaj   +1 more source

Volatile Memristive Devices With Tunable Temporal Dynamics For Event‐Based Sensing

Advanced Materials, EarlyView.
Tunable volatile memristive devices can serve various neural‐inspired tasks that require different time windows of information retention. The ionic‐based volatility of the presented Pt/a‐STO/TaOx/Ta device stack can be reproducibly and controllably tuned in multiple ways.
Dimitrios Spithouris, Johannes Hellwig, Hugh Greatorex, Clemens Wittberg, Panagiotis Koutsogiannis, César Magén, Elisabetta Chicca, Regina Dittmann   +7 more
wiley   +1 more source

Calculation Method for Dynamic Stiffness of Multispan Overhead Transmission Lines

IEEE Access, 2022
The dynamic motion of a span is coupled to the other spans in transmission lines. From the continuity conditions, force equilibrium conditions, and dynamical equations of every span conductor and insulator string, a close-form expression for the dynamic ...
Lv Zhongbin, Zhang Bo, Liu Xiaohui, Tao Yaguang, Liang Haobo, Li Qing, Yan Bo   +6 more
doaj   +1 more source

Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction

Advanced Materials, EarlyView.
A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu, Hao Jiang, Xingsi Liu, Fakun Wang, Yang Peng, Qi Jie Wang, Weibo Gao, Xingzhan Wei, Cheng‐Wei Qiu   +8 more
wiley   +1 more source

Fiber‐Format Flexible Linear Electrostatic Motors

Advanced Materials, EarlyView.
A flexible coaxial fibre‐format electrostatic motor enables backdrivable and reversible linear actuation with high force density and functionality under bending, offering a scalable actuation platform for soft and wearable robotics. ABSTRACT Linear motion is fundamental to robotics, yet existing solutions are either rigid electromagnetic motors or ...
Sylvain Schaller, Herbert Shea
wiley   +1 more source

Integrated protection scheme for hybrid AC/DC transmission grids

International Journal of Electrical Power & Energy Systems
Given the limited Right-of-Way (ROW) for transmission lines, AC and DC transmission lines are transferred in parallel and adjacent to each other, forming a hybrid AC/DC transmission overhead line system for the consumption of renewable energy. The system
Qi Liu, Xu Chu, Letian Fu, Shaoshuai Yu, Weidong Wang   +4 more
doaj   +1 more source

Fault Location with Increased Reliability for Overhead Transmission Lines [PDF]

E3S Web of Conferences
The double-ended traveling wave (TW) method is a promising tool for fault location on transmission lines. It implies that high-frequency transients during fault inception are recorded in specific devices, which identify the precise time, when a front of ...
Lachugin Vladimir, Podshivalin Andrey, Ismukov Grigory, Lvov Alexandr   +3 more
doaj   +1 more source