Results 11 to 20 of about 3,108 (255)
Energy Reports, 2022 Voltage sag is an important problem that causes power quality degradation, and the premise of solving the problem of voltage sag is to detect the depth of voltage sag accurately and quickly. Based on the past research on voltage sag detection, this paper
Ziming Wang +4 more
doaj +3 more sources
Energies, 2022 Voltage sag detection is utilized to capture the sag occurrence moment and calculate the sag depth of power grid voltage in real time, so as to generate reference voltage for controlling voltage interactive equipment such as dynamic voltage restorers ...
Zhenyu Li +4 more
doaj +3 more sources
Voltage Sag Detection Based on Rectified Voltage Processing [PDF]
IEEE Transactions on Power Delivery, 2004 An algorithm for voltage sag detection based on rectified voltage processing is presented and its performances are evaluated by means of simulated and real voltage waveforms (recorded at some low-voltage busbars and measured on a scaled prototype of a voltage support system). The algorithm is intended to detect voltage sag occurrence and to trigger the
Andrea Mariscotti, M Mazzucchelli
exaly +2 more sources
Automatic Expansion of Voltage Signals Using Empirical Mode Decomposition for Voltage Sag Detection
IEEE Access, 2022 Voltage sag is one of the most harmful power quality issues. In practical engineering, harmonic and noise interference problems will bring big challenges to the analysis of voltage signals.
Heyang Li, Chao Meng, Yingru Zhao
doaj +2 more sources
Energy feature extraction and visualization of voltage sags using wavelet packet analysis for enhanced power quality monitoring [PDF]
Scientific ReportsPower quality (PQ) disturbances, such as voltage sags, are significant issues that can lead to damage in electrical equipment and system downtime. Detecting and classifying these disturbances accurately is essential for maintaining reliable power systems.
M. S. Priyadarshini +2 more
doaj +2 more sources
IEICE Electronics Express, 2010 This paper implements two main works. First, a new voltage-sag detection technique based on phase-angle analysis is proposed. It is simple to implement and able to detect and compensate sag the moment it occurs. Second, a new topology of voltage sag compensator is introduced.
Muhamad Mansor, Nasrudin Abd Rahim
exaly +3 more sources
A detection algorithm of voltage sag used in dynamic voltage restorer
Gong-kuang zidonghua, 2013 In view of contradiction between compensation rapidity and anti-interference performance existed in traditional detection algorithm of voltage sag of d-q detection algortihom and Hilbert detection algorithm, a new detection algorithm of voltage sag ...
TIAN Ming, WANG Chang-nan, HE Cheng
doaj +1 more source
Homology detection method for voltage sags based on space vector and maximum mean discrepancy
Energy Reports, 2022 A single voltage sag source may trigger multiple power quality monitors to record waveforms resulting in the redundancy of voltage sag monitoring data.
Wei Wang +5 more
doaj +1 more source
IEEE Access, 2022 In this paper, a novel method for real-time prediction of voltage sag duration is proposed. It is based on the recently introduced new characteristic of voltage sag, named harmonic footprint, and is formulated using a logistic regression model.
Aleksandar M. Stanisavljevic +2 more
doaj +1 more source
IEEE Access, 2021 In this article, a new solar PV fed Dynamic Voltage Restorer (DVR) based on Trans-Z-source Inverter (TransZSI) is proposed to improve the power quality of on-grid Photovoltaic (PV) systems.
Ali Moghassemi +4 more
doaj +1 more source