Results 51 to 60 of about 1,715,225 (335)
International Journal of Electrical Power & Energy SystemsVoltage sags often disrupt the normal functioning of sensitive equipment and distributed generators (DGs), making voltage sag mitigation based on corresponding assessments crucial. Voltage sag characteristics, including voltage magnitude and sag duration,
Xian-yong Xiao +3 more
doaj +1 more source
Measurement + Control, 2020 The voltage sag problem in a power grid can be solved by a voltage regulator. In this study, the voltage regulator based on thyristor was used to compensate the single-phase and three-phase voltage of voltage sag fault, so as to recover the normal level ...
Zonglu Zhang
doaj +1 more source
Zhongguo dianli, 2020 For realizing marketization of voltage sag governance, two major problems need to be solved: lowering the investment cost and reasonably setting the service fee.
Bo ZHANG +5 more
doaj +1 more source
Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing
Advanced Engineering Materials, EarlyView.The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai +6 more
wiley +1 more source
Design of a 27-level cascaded converter as FACTS device for voltage sag mitigation
, 2015 One of the major problems with power quality is the voltage sag phenomena. There are various solutions for sag mitigation in the power system at the transmission voltage level, but the most common way is by installing mitigating devices in the system ...
Nadia M.L. Tan +7 more
core +1 more source
Stretching the Printability Metric in Direct‐Ink Writing with Highly Extensible Yield‐Stress Fluids
Advanced Functional Materials, EarlyView.This study introduces “drawability” as a new metric for assessing printability in direct‐ink writing, focusing on gap‐spanning performance and speed robustness. By designing yield‐stress fluids with high extensibility, we demonstrate that extensional strain‐to‐break significantly enhances printability.
Chaimongkol Saengow +9 more
wiley +1 more source
Phasor Based Voltage Sag Monitoring and Characterisation
, 2005 This article addresses a wide three-phase voltage sag characterisation, including sag magnitude, phase-angle jump, and duration. A signal-processing algorithm is proposed to obtain voltage sag characteristics for phase voltages and positive sequence ...
Chouhy Leborgne, Roberto, +1 more
core +2 more sources
A comprehensive evaluation method of DC voltage sag in medium–low voltage DC distribution system
Energy Reports, 2022 The development of the DC distribution system (DCDS) has attracted increasing attention, due to its technological superiorities in integrating new energy sources and DC power loads more friendly and effectively.
Zhenqiang Li +5 more
doaj +1 more source
IEEE Transactions on Power Delivery, 2020 This paper presents a new multi-objective control strategy for inverter-interfaced distributed generation (IIDG) to ensure its safe and continuous operation under unbalanced voltage sags.
Liang Ji +8 more
semanticscholar +1 more source
Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses
Advanced Functional Materials, EarlyView.By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso +4 more
wiley +1 more source