Results 71 to 80 of about 577 (206)

Advances and Current Progress of Dopant Engineering on All‐Inorganic Halide Perovskites Toward High‐Performance Scintillating Materials

open access: yesMetalMat, Volume 3, Issue 2, June 2026.
This review provides the latest advancement on lead‐free all‐inorganic perovskites, covering fundamental aspects, emerging synthetic routes, and scintillation properties. We highlight the dopant engineering strategy to favor the formation and efficient radiative recombination of self‐trapped excitons and the future development direction for the next ...
Galfin Anderias Adu   +6 more
wiley   +1 more source

Particle‐Size‐Dependent Lithium‐Ion Transport in PEO/LLZO Composite Electrolytes

open access: yesSmall Structures, Volume 7, Issue 6, June 2026.
A continuum modeling framework quantifies the critical polymer/ceramic interfacial resistance required for ceramic fillers to reduce polarization in PEO/LLZO composite electrolytes. The model shows that this threshold scales linearly with LLZO particle size, while remaining largely insensitive to ceramic loading.
Jeong Seop Yoon   +8 more
wiley   +1 more source

Composite Electrode‐Hybrid Electrolyte Integration Strategy for Enhanced Ion Transport and Scalable All‐Solid‐State Lithium Batteries

open access: yesSmall Structures, Volume 7, Issue 6, June 2026.
We successfully synthesized Al‐LLZO and fabricated and optimized various contents of HSE. Unlike BE + HSE, the combination (CE) of Al‐LLZO and BE facilitated the formation of a Li+ transport network by evenly distributing Al‐LLZO throughout the cathode, minimizing interfacial resistance. This demonstrates the excellent electrochemical performance of CE‐
Hye Su Hwang   +5 more
wiley   +1 more source

Control Method for Overvoltage During Power Supply Loss in Medium-Voltage Flexible DC Sections Based on Guided Strategy Adaptive Particle Swarm Optimization

open access: yesEAI Endorsed Transactions on Energy Web
To address the challenge of overvoltage control during power loss in medium-voltage flexible DC sections under complex and variable operating conditions, a control method based on guided-strategy adaptive particle swarm optimization (GS-APSO) is ...
Asleng   +5 more
doaj   +1 more source

A Control Strategy for Variable Speed Condenser Based on Doubly‐Fed Machine

open access: yesIET Smart Energy Systems, Volume 2, Issue 2, Page 120-130, June 2026.
This paper proposes a variable speed condenser (VSC) control strategy based on a doubly fed machine. It can be installed in PV stations and wind farms to enhance the grid‐connection performance of renewable energy power plants. ABSTRACT The lack of active power support capability in power systems with large‐scale renewable energy integration has become
Jian Zhang   +5 more
wiley   +1 more source

Overvoltage Crowbar Protection Based on Passive Power Supplied Control Unit

open access: yesPower Electronics and Drives
The increase in the involvement of renewable energy sources results in a high rate of semiconductor power converter applications. The power converters provide interconnections of DC microgrids with AC distribution lines.
Strossa Jan   +5 more
doaj   +1 more source

Coordinated optimization of control parameters for suppressing transient overvoltage in wind power DC transmission systems

open access: yesFrontiers in Energy Research
With the increasing proportion of new energy in power systems, the instability issues of novel power systems become more prominent. This paper addresses the transient overvoltage problem in wind power DC transmission systems by proposing a method for ...
Jie Zhao   +6 more
doaj   +1 more source

Aspects of ultra-high voltage half-wavelength power transmission technology

open access: yesGlobal Energy Interconnection, 2018
The necessity of large-scale and long-distance power transmission in future energy development is analyzed and some application scenarios of ultra-high voltage (UHV) half-wavelength transmission (HWLT) system are presented in the paper.
Yutian Liu   +3 more
doaj   +1 more source

An overvoltage suppression scheme for AC motor drives using a half DC-link voltage level at each PWM transition

open access: yes, 2019
Passive filters are conventionally used to suppress overvoltage in the motor terminal, either by reducing the voltage rising rate at the inverter output, or by decreasing the motor terminal impedance.
Lee, S, Nam, K
core   +1 more source

Closed-form approach for predicting overvoltage transients in cable-fed PWM motor drives for MEA

open access: yes, 2016
The More Electric Aircraft (MEA) concept has set tight constraints for power density and efficiency of electromechanical actuators in aircraft applications.
Barater, Davide   +9 more
core   +1 more source

Home - About - Disclaimer - Privacy