Results 11 to 20 of about 7,084 (263)
A review of voltage sag control measures and equipment in power systems
Energy Reports, 2022 In recent years, voltage sags are one of the most critical research issues in the field of power quality. With the all-embracing study of voltage sag mitigation measures and equipment, the classification of voltage sag mitigation measures and equipment ...
Liangyu Tang +4 more
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Recognition of Voltage Sag Sources Based on Phase Space Reconstruction and Improved VGG Transfer Learning [PDF]
Entropy, 2019 The recognition of the voltage sag sources is the basis for formulating a voltage sag governance plan and clarifying the responsibility for the accident.
Yuting Pu +3 more
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Power conditioning using dynamic voltage restorers under different voltage sag types [PDF]
Journal of Advanced Research, 2016 Voltage sags can be symmetrical or unsymmetrical depending on the causes of the sag. At the present time, one of the most common procedures for mitigating voltage sags is by the use of dynamic voltage restorers (DVRs).
Ahmed M. Saeed +4 more
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A novel approach for voltage sag representation in a chemical industry: A case study
Engineering Reports, 2020 Voltage sag is a major Power Quality issue which may occur at every possible load point. In the industrial sector, its impact is particularly prominent at it is directly related to financial losses.
Chinmaya Behera +2 more
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Cause, Classification of Voltage Sag, and Voltage Sag Emulators and Applications: A Comprehensive Overview [PDF]
IEEE Access, 2020 The large-scale application of wind power and photovoltaic power solves the energy crisis and alleviates the environmental problems caused by the use of conventional energy. However, they are at risk of being randomly tripped from the network when faced to voltage sag and severe fault events, which will lead to a sudden reduction of active power output
Yang Han 0002 +5 more
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Error Analysis and Correction of Voltage Sag Measurement for Capacitor Voltage Transformer
Zhongguo dianli, 2022 Voltage sag is one of the most prominent power quality problems in modern power grid. When monitoring voltage sag in a large range of high-voltage systems, the adverse effects caused by capacitor voltage transformer (CVT) with energy storage elements ...
Wen ZHOU +5 more
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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
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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
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Prediction of Voltage Sag Relative Location with Data-Driven Algorithms in Distribution Grid
Energies, 2022 Power quality (PQ) problems, including voltage sag, flicker, and harmonics, are the main concerns for the grid operator. Among these disturbances, voltage sag, which affects the sensitive loads in the interconnected system, is a crucial problem in the ...
Yunus Yalman +7 more
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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
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