Results 31 to 40 of about 1,432 (215)

Linear Active Disturbance Rejection Control of Waste Heat Recovery Systems with Organic Rankine Cycles

Energies, 2012
In this paper, a linear active disturbance rejection controller is proposed for a waste heat recovery system using an organic Rankine cycle process, whose model is obtained by applying the system identification technique.
Fang Fang, Hong Yue, Yeli Zhou, Jiancun Feng, Jianhua Zhang   +4 more
doaj   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

Advanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang, Xuelin Wu, Yinding Chi, Qingya Huang, Yaoye Hong, Antonio Proctor Martinez, Jingxian Wu, Bingzhi He, Cynthia Sung, Shu Yang   +9 more
wiley   +1 more source

Improve LADRC Strategy for Variable Air Gap Permanent Magnetic Levitation System

IEEE Access
Aiming to address the shortcomings of the single-point variable air gap permanent magnetic levitation system in terms of dynamic performance and anti-disturbance capabilities, an improved linear active disturbance rejection control (ILADRC) strategy is ...
Hongkui Zhang, Qinwei Zhang, Hang Shen, Yipeng Lan, Jiaqi Wen, Chuan Zhao   +5 more
doaj   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Tracking Controller Design for Hypersonic Cruise Vehicle Based on RLESO

Kongzhi Yu Xinxi Jishu, 2018
An active disturbance rejection tracking controller based on reduced-order linear extended state observer was designed for the hypersonic cruise vehicle with strong nonlinearity, coupling, uncertainties and fast time-varying.
WU Xia, LI Xiaodong, WANG Siyuan, LUO Shibin   +3 more
doaj  

Optimized LADRC for Sub-Synchronous Oscillation Suppression in Wind Turbines

Applied Sciences
Sub-synchronous oscillation problems may be induced when direct-drive wind turbines are connected to a weak AC power grid, and then it is necessary to analyze the mechanism of sub-synchronous oscillation and study effective suppression methods.
Hao-Yang He, Ming-Dong Wang, Hua-Yang Xu, Su-Yang Wang   +3 more
doaj   +1 more source

Bus Voltage Control of Photovoltaic Grid Connected Inverter Based on Adaptive Linear Active Disturbance Rejection

Energies, 2022
According to the traditional voltage and current double closed-loop control mode, the inverter management strategy for photovoltaic grid connection has insufficient anti-interference ability and slow response.
Miao Zhang, Keyu Zhuang, Tong Zhao, Xianli Chen, Jingze Xue, Zheng Qiao, Shuai Cui, Yunlong Gao   +7 more
doaj   +1 more source

Optical Detection of Cellular Signals at Material Interfaces

Advanced Healthcare Materials, EarlyView.
Emerging functional materials are transforming optical detection of cellular signals. This review highlights optical techniques that exploit the unique optical properties of diverse materials to detect and quantify cellular electrical, chemical, and mechanical signals, and discusses key opportunities and challenges.
Xuchen Ren, Jitong Ren, Zixin Zhang, Koney Eungkon Kim, Francis L. Hong, Yuecheng Peter Zhou   +5 more
wiley   +1 more source

Frequency Control Method for Distributed Energy Systems Based on Nash Equilibrium Quantum Particle Swarm Optimization

Kongzhi Yu Xinxi Jishu
Distributed energy systems relying on renewable energy sources such as wind and solar energies are faced with challenges, including excessive frequency fluctuations and the complexity of hybrid energy storage control.
YI Kang, LUO Wenguang, WANG Tao, CHEN Yufeng   +3 more
doaj   +3 more sources

Active Disturbance Rejection Control of Permanent Magnet Synchronous Motor Based on RPLESO

Energies
In view of the problem of the low-speed jitter of household lawn mowers driven by a permanent magnet synchronous motor (PMSM) at low speeds and high torque, and the complicated parameters of traditional non-linear active disturbance rejection controllers,
Chengpeng Zhou, Bo Wang, Kai Liu, Kaixuan Ren   +3 more
doaj   +1 more source