Results 71 to 80 of about 10,839 (297)
Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights
Advanced Functional Materials, EarlyView.This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He +5 more
wiley +1 more source
TechnologiesWith the increasing penetration of renewable energy sources, power systems require more grid-forming converters. Grid-forming converters with virtual synchronous generator control have transient stability problems similar to those of synchronous machines.
Jie Zhang +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This work developed a smart Janus wood membrane integrating asymmetric wettability with built‐in electrical sensing for oil‐water separation. The membrane achieved > 99.5% separation efficiency and high flux by leveraging wood's natural anisotropic pore structure.
Kaiwen Chen +10 more
wiley +1 more source
Transient Stability of Grid-Forming Converters with Flexible DC-Link Voltage Control
, 2022 This paper proposes a flexible dc-link voltage control scheme for grid-forming converters. In the approach, instead of cascading the dc-link voltage control with the power synchronization control, a paralleled connection of the two loops is employed ...
Jin, Zheming +2 more
core +1 more source
Frontiers in Energy ResearchExisting transient stability analysis of grid-following (GFL) converters mainly focuses on the dynamics of the phase-locked loop (PLL), while current loop dynamics are usually neglected due to their faster response than PLL. However, this article reveals
Chao Wu +3 more
doaj +1 more source
Advances in Sustainable and Wearable Textile Based Soft Robotics
Advanced Functional Materials, EarlyView.This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas +6 more
wiley +1 more source
, 2014 International audienceIn this paper the problem of designing excitation controllers to improve the transient stability of multi-machine power systems is addressed adopting two new perspectives.
Ortega, Roméo +5 more
core +1 more source
Transient synchronization stability analysis of PV grid-tied systems considering whole LVRT process
International Journal of Electrical Power & Energy SystemsLarge-scale photovoltaic power generation makes the transient characteristics of power grid under severe faults particularly complicated. Different from the traditional synchronous generator, the transient stability condition and evolution law of the PV ...
Qihao Shen, Meng Zhan
doaj +1 more source
Advanced Functional Materials, EarlyView.Ferroelectric domain variants that are energetically equivalent are expected to remain preserved during polarization reversal. However, phase‐field simulations reveal that inclined domain walls in relaxor ferroelectrics can undergo irreversible elimination during alternating current poling through a proximity effect driven by long‐range elastic ...
Yuan‐Jie Sun +2 more
wiley +1 more source
Systematic Approach for Transient Stability Evaluation of Grid-Tied Converters during Power System Faults [PDF]
, 2019 Grid-tied converters subject to severe grid faults might experience transient instability and loss of synchronization. As studying this phenomenon deals with large-signal disturbances, a linearized equivalent will no longer be an accurate approximation ...
Mads Graungaard Taul +7 more
core +1 more source