Results 11 to 20 of about 2,756,303 (208)

A Coordinated Optimal Strategy for Voltage and Reactive Power Control with Adaptive Amplitude Limiter Based on Flexible Excitation System

Energies, 2021
The flexible excitation system (FES) is a kind of novel excitation system with two channels for damping control. Besides the basic functions of traditional excitation systems, flexible excitation systems can provide reactive power support for the ...
Yuwei Peng, Jiancheng Zhang, Chengxiong Mao, Hongtao Xiong, Tiantian Zhang, Dan Wang   +5 more
doaj   +2 more sources

Collective photothermal bending of flexible organic crystals modified with MXene-polymer multilayers as optical waveguide arrays

Nature Communications, 2023
The performance of any engineering material is naturally limited by its structure, and while each material suffers from one or multiple shortcomings when considered for a particular application, these can be potentially circumvented by hybridization with
Xuesong Yang, Linfeng Lan, Liang Li, Jinyang Yu, Xiaokong Liu, Ying Tao, Quan-Hong Yang, Panče Naumov, Hongyu Zhang   +8 more
doaj   +2 more sources

Linear Active Disturbance Rejection Control for Flexible Excitation System of Pumped Storage Units

Energies
The role of pumped storage in global energy structure transformation is becoming increasingly prominent. This article introduces a flexible excitation system based on fully controlled device converters into pumped storage units (PSUs). It can address the
Bo Zhao, Jiandong Zheng, Jun Qin, Dan Wang, Jiayao Li, Xinyu Cheng, Sisi Jia   +6 more
doaj   +3 more sources

The Role of Interdigitated Electrodes in Printed and Flexible Electronics

Sensors
Flexible electronics, also referred to as printable electronics, represent an interesting technology for implementing electronic circuits via depositing electronic devices onto flexible substrates, boosting their possible applications. Among all flexible
Shayma Habboush, Sara Rojas, Noel Rodríguez, Almudena Rivadeneyra   +3 more
doaj   +2 more sources

Influence of equipment excitation on flexible carbody vibration of EMU

Journal of Modern Transportation, 2014
To study the vibration transmission characteristics of a flexible carbody and its suspended equipment, a vertical mathematical model of high-speed electric multiple unit was established with equipment excitation considered.
Huailong Shi, Ren Luo, Jing Zeng
exaly   +2 more sources

Research on flexible excitation system applied to improve transient stability characteristics of the receiving-end power grid

Zhejiang dianli, 2022
The transient forced excitation of the traditional excitation system used for synchronous condenser is limited and unmaintainable. A flexible excitation system can improve the crest value of transient forced excitation and maintain the forced excitation ...
WANG Longfei, ZHANG Jiancheng, WANG Bowen, ZHUO Guying, HUA Wen, XIONG Hongtao   +5 more
doaj   +1 more source

Experimental Research on Vortex-Induced Force Characteristics of Flexible Riser with Buoyancy Module and Strakes

Applied Sciences, 2022
In this paper, the vortex-induced force characteristics of a flexible riser with buoyancy modules and strakes were experimentally investigated. The strain information caused by vortex-induced vibration (VIV) at different cross-sections on the flexible ...
Lusheng Jia, Yi Liu, Mengmeng Zhang, Shixiao Fu, Haojie Ren   +4 more
doaj   +1 more source

Modal Identification of Ultralow-Frequency Flexible Structures Based on Digital Image Correlation Method

Applied Sciences, 2021
Traditional modal testing has difficulty accurately identifying the ultralow-frequency modes of flexible structures. Ultralow-frequency excitation and vibration signal acquisition are two main obstacles.
Hui Qian, Yimeng Wu, Rui Zhu, Dahai Zhang, Dong Jiang   +4 more
doaj   +1 more source

Strain‐Controlled Spin Wave Excitation and Gilbert Damping in Flexible Co2FeSi Films Activated by Femtosecond Laser Pulse

Advanced Functional Materials, 2021
The dynamic response of magnetic order to optical excitation at sub‐picosecond scale has offered an intriguing alternative for magnetism manipulation. Such ultrafast optical manipulation of magnetism has become a fundamental challenging topic with high ...
Zhi Zhang, E. Liu, Xianyang Lu, Wen Zhang, Yurong You, Guizhou Xu, Zhan Xu, P. Wong, Yichuan Wang, Bo Liu, Xiaojiang Yu, Jing Wu, Yongbing Xu, A. Wee, Feng Xu   +14 more
semanticscholar   +1 more source

Multifunctional Polymer Nanofibers: UV Emission, Optical Gain, Anisotropic Wetting, and High Hydrophobicity for Next Flexible Excitation Sources [PDF]

ACS Applied Materials and Interfaces, 2015
The use of UV light sources is highly relevant in many fields of science, being directly related to all those detection and diagnosis procedures that are based on fluorescence spectroscopy.
G. Morello, Rita Manco, M. Moffa, L. Persano, A. Camposeo, D. Pisignano   +5 more
semanticscholar   +1 more source