Results 31 to 40 of about 1,715,225 (335)
A Non-invasive Identification Method for Sensitive Load Based on Voltage Sag Monitoring Data
Zhongguo dianli, 2021 For the problem that it is difficult to accurately obtain the user's sensitive equipment parameters and the production process structure in voltage sag mitigation, a method is proposed for identifying sensitive loads based on available voltage sag ...
Chong HU +5 more
doaj +1 more source
Voltage Sag Immunity Testing for AC Contactors in Industrial Environment
, 2020 The voltage sag is one of the prominent power quality issues faced by industrial consumers in Malaysia. Frequent voltage sag incidences have caused sensitive equipment to trip causing significant production losses.
Abu Zaharin Ahmad +3 more
core +1 more source
IEEE Access, 2020 Renewable energy sources; which are abundant in nature and climate friendly are the only preferable choice of the world to provide green energy. The limitation of most renewable energy sources specifically wind and solar PV is its intermittent nature ...
Emiyamrew Minaye Molla, C. Kuo
semanticscholar +1 more source
The influence of motor reacceleration on voltage sags [PDF]
IEEE Transactions on Industry Applications, 1995 The assumption that a voltage sag is rectangular is not correct in a power system with large induction motor loads. The motors decelerate during the short circuit. After fault-clearing, they will accelerate again, drawing a high reactive current from the supply, causing a prolonged postfault voltage sag. This is aggravated by the removal of branches by
openaire +2 more sources
A System Assessment Method for Voltage Sag Severity Based on Average Point-To-Line Distance Index
Zhongguo dianli, 2020 In order to systematically compare the voltage sag severity of different regions, a system method is proposed to assess grid voltage sag severity. The method obtains the time duration intervals through cluster analysis, and gets the medians of residual ...
Qing ZHONG +4 more
doaj +1 more source
Electrical engineering & Electromechanics, 2021 Introduction. Voltage sag, which is associated to a transitory drop in the root mean square voltage characterizing an electrical source network. During these perturbations, the corresponding electronic customers and devices will suffer from serious ...
A. Boussaid +3 more
doaj +1 more source
Evaluation Method and Probabilistic Index of Voltage Sag Severity Considering Point-on-wave
Journal of Modern Power Systems and Clean Energy, 2021 The impact of voltage sag on sensitive devices is related to the time when the sag occurs. However, the point-on-wave of a sag is uncertain. Therefore, this paper presents a novel approach to evaluate the voltage sag severity considering a random point ...
Guopei Wu +3 more
doaj +1 more source
SRF based versatile control technique for DVR to mitigate voltage sag problem in distribution system
, 2020 Dynamic voltage restorer (DVR) is a power electronics based custom power device (CPD) which is used in distribution system to mitigate voltage sag problem, although the performance of DVR depends mainly on its control technique.
Essam A. Al‐Ammar +4 more
semanticscholar +1 more source
Research of optimized compensation strategy for mine-used dynamic voltage restorer
Gong-kuang zidonghua, 2016 To solve low utilization of DC-link capacitor of mine-used dynamic voltage restorer under long voltage sag, an optimized compensation strategy was proposed, namely a smooth transition between pre-sag compensation and in-phase compensation, so as to ...
LI Zhankai, WANG Jingqin, ZHANG Fumi
doaj +1 more source
Voltage Sag Mitigation Effect Considering Failure Probability According to the Types of SFCL
Energies, 2023 The development of industrial technology is based on electronic devices that are sensitive to power quality. Thus, the demand for high-quality and reliable power supplies is increasing.
Joong-Woo Shin +2 more
doaj +1 more source