Results 31 to 40 of about 3,063 (167)

Stimuli‐Responsive Electrofluidic Nervous System for Autonomous Soft Robots

Advanced Intelligent Systems, EarlyView.
A stimuli‐responsive electrofluidic nervous system (SENS) is introduced to achieve sensing, signal processing, and decision‐making using soft materials. Comprising fluidic switches and electroactive actuators, SENS enables multimodal stimuli‐responsiveness and autonomous control in soft robots.
Dip Kumar Saha, Dana Ragab, Nicolas Herzig, Hareesh Godaba   +3 more
wiley   +1 more source

Optimizing Task Orchestration for Distributed Real-Time Electromagnetic Transient Simulation

IEEE Access
Transient simulation in power engineering is crucial as it models the dynamic behavior of power systems during sudden events like faults or short circuits. Electromagnetic transient simulations involve multiple coordinated tasks.
Qi Guo, Haiping Guo, Yuanhong Lu, Tianyu Guo, Jie Zhang, Jingyue Zhang, Hui Luo, Libin Huang, Yanjun Zhao   +8 more
doaj   +1 more source

LCC-HVDC Converter Station Reactive Power Optimization and Two-Layer Coordination Strategy Research Based on Synchronous Sondenser

南方能源建设, 2023
[Introduction] Under the existing converter station reactive power compensation scheme, the synchronous condenser only provides transient reactive power support, and the AC (Alternating Current) filter undertakes steady-state reactive power compensation ...
Dongqing ZHANG, Lingling XU, Yanlong LI, Guohua ZHANG   +3 more
doaj   +1 more source

Dynamic Covalent Chemistry Enables Self‐Healing and Compatibilization in Polypropylene Composites

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A high‐performance polypropylene insulation material is created through dynamic covalent crosslinking. It achieves exceptional dielectric properties, autonomous self‐healing, and easy recycling, offering a sustainable solution for future HVDC transmission systems.
Hongzhe Zhang, Wenye Zhang, Wenjie Huang, Jun‐Wei Zha   +3 more
wiley   +1 more source

Valve-Side Single-Phase-to-Ground Fault Clearance in Bipolar Hybrid-MMC HVDC Systems Utilizing Thyristor Commutation Branches and Mechanical Interrupter

IEEE Access
The Hybrid Modular Multilevel Converter (HMMC) topology—comprising full-bridge (FB) and half-bridge (HB) submodules—is effective for DC fault clearance in HVDC systems.
Muhammad Usman, Il Kwon, Bang-Wook Lee
doaj   +1 more source

High‐Fidelity Simulation‐Driven Control Framework for Robust Grid Integration of Renewable Energy Systems

Energy Science &Engineering, EarlyView.
This work proposes a high‐fidelity, simulation‐driven control framework for robust grid integration of hybrid PV–wind systems using a modular, hierarchical multi‐loop architecture with adaptive decision logic. The framework coordinates power, DC‐link voltage, and grid currents under fast load and generation changes, enabling safe exploration of extreme
Wulfran Fendzi Mbasso, Ambe Harrison, Idriss Dagal, Pradeep Jangir, Zhe Liu, Aseel Smerat   +5 more
wiley   +1 more source

Design and implementation of passive impedance adapter to damp resonances between VSC‐HVDC and AC systems

IET Generation, Transmission & Distribution
It has been known that resonances often occur when high‐voltage direct current (HVDC) systems are connected into the AC system via voltage‐source converters (VSCs).
Changyue Zou, Junjie Feng, Xiaobin Zhao, Yi Yuan, Ting Hou   +4 more
doaj   +1 more source

Solubility and Diffusivity of Polar and Non-Polar Molecules in Polyethylene-Aluminum Oxide Nanocomposites for HVDC Applications

Energies, 2020
The best commercial high-voltage insulation material of today is (crosslinked) ultra-pure low-density polyethylene (LDPE). A 100-fold decrease in electrical conductivity can be achieved by adding 1−3 wt.% of well-dispersed inorganic nanoparticles ...
Shima L. Holder, Mattias E. Karlsson, Richard T. Olsson, Mikael S. Hedenqvist, Fritjof Nilsson   +4 more
doaj   +1 more source

Coordinative Frequency Control of Multi HVDC Links in Sending-End Power Grid Considering Over-Frequency Protection of Wind Power Generation

Zhongguo dianli, 2021
A large number of high voltage direct current (HVDC) projects are under construction or have been put into operation in order to mitigate the reverse distribution between energy and loads in China.
Guangzeng YOU, Huarui LI, Changgang LI, Chao LIU, Yingchun QIAN, Lingfang LI   +5 more
doaj   +1 more source

Flexible CSC‐HVDC system

The Journal of Engineering, 2019
The current source converter (CSC)‐HVDC system is the key technology for long distance large power transmission. However, the traditional CSC‐HVDC has two serious shortcomings: (i) vulnerable to commutation failures; and (ii) not being able to control its reactive power.
Haitao Wu, Yonghe Liu, Zhihe Wang, Lei Song, Fan Wu   +4 more
openaire   +2 more sources