Results 71 to 80 of about 26,940 (266)

Enhanced grid synchronization method with suppressed frequency coupling and stability impact for grid-connected converters under weak grids

Ain Shams Engineering Journal
The synchronous reference frame phase-locked loop (SRF-PLL) is widely adopted in grid-connected converters (GCCs); however, its inherent dq-frame coupling may induce undesired frequency coupling and stability degradation, especially under grid impedance ...
Yifan Zhao, Dan Liu, Ping Xiong, Yu Sun
doaj   +1 more source

Transient Stability of Converter-Connected Systems： A Review of Research Status， Challenges and Prospects [PDF]

Dianli jianshe
[Objective] With the increasing penetration of renewable energy， the power system is accelerating its transformation towards being dominated by power electronic equipment.
XIONG Yongxin, WEN Jinyu, YAO Wei
doaj   +1 more source

Intelligent Sky Guardians (InSkyGuard): An Aerial Robotic Swarm for Autonomous Detection and Entrapment of Rogue Multirotors

Advanced Robotics Research, EarlyView.
Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings, Levanya Dewanarayana, Iline Shaju, Haider Al‐Wizni, Sampson Marquis, Weicheng Huang, Pooya Sareh   +6 more
wiley   +1 more source

Transient Damping of Virtual Synchronous Generator for Enhancing Synchronization Stability During Voltage Dips

CES Transactions on Electrical Machines and Systems
Virtual synchronous generators (VSGs) are widely introduced to the renewable power generation, the variable-speed pumped storage units, and so on, as a promising grid-forming solution.
Shitao Sun, Yu Lei, Guowen Hao, Yi Lu, Jindong Liu, Zhaoxin Song, Jie Zhang   +6 more
doaj   +1 more source

Intelligent Maintenance Review for Robots: Multimodal Information, Deep Diagnosis and Embodied Artificial Intelligence

Advanced Robotics Research, EarlyView.
This review maps the methods to monitor robots’ health by fusing vibration, sound, control signals, vision, force, and oil information with artificial intelligence. It identifies deep learning, transfer learning, digital twins, and physics‐informed models as key methodological pathways enabling earlier diagnosis, safer human–robot collaboration, and ...
Yuting Qiao, Hongbo Wang, Naipeng Li, Shuo Wang, Yaguo Lei, Tonghai Wu, Junyi Cao   +6 more
wiley   +1 more source

Transient Response Analysis of Quasi‐Synchronization and Self‐Synchronization Grid‐Connection Processes for Nuclear Power (N + X) Emergency Diesel Generator Units

Engineering Reports
Nuclear power emergency diesel generator units are critical safety equipment for nuclear power plants. The (N + X) mode diesel generator units provide improved reliability, thus guaranteeing the safe operation of nuclear power plants.
Sumin Wu, Yinhui Yu, Jie Zhang, Wenjiang Zhu   +3 more
doaj   +1 more source

An Improved Grid-connected Pre-Synchronization Method based on Virtual Synchronous Generator Control in Power Conversion System [PDF]

E3S Web of Conferences
Under the background of vigorously promoting the construction of new power system，the power conversion system(PCS) plays an important role to transfer high reliable electrical power quality to grid.
Shasha Chen, Jinghua Zhou, Shukuraliev Abrorbek, Yifei Sun   +3 more
doaj   +1 more source

Autonomous Navigation of Pollen‐Inspired Magnetic Microrobots for Biomedical Applications

Advanced Robotics Research, EarlyView.
A sunflower pollen‐inspired magnetic microrobot enables controlled rolling navigation in vessel‐like environments. Its open geometry reduces hydrodynamic drag, while vision‐based closed‐loop control, shortest‐path planning, and reinforcement learning support target‐reaching and maze navigation with microrobot‐scale accuracy, highlighting a route toward
Ali Anil Demircali, Abdurrahim Yilmaz, Meysam Keshavarz, Jinshi Zhao, Ara Darzi, Eric Yeatman, Burak Temelkuran   +6 more
wiley   +1 more source

Grid-forming control and stability analysis for offshore wind VSC-HVDC systems with enhanced grid-support capability

International Journal of Electrical Power & Energy Systems
With the increasing integration of large-scale offshore wind power, grid frequency and voltage stability issues are becoming more pronounced. Conventional control strategies for voltage source converter based high voltage direct current (VSC-HVDC ...
Huichen Gan, Huangqing Xiao, Lidong Zhang   +2 more
doaj   +1 more source

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

Advanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu, Fulu Zheng, San‐Dong Guo, Thomas Frauenheim, Zhaobo Zhou, Junjie He   +5 more
wiley   +1 more source