Results 21 to 30 of about 33,988 (309)
An improved modulation method is proposed for two parallel three-level interleaved rectifiers to reduce current harmonics and high-frequency zero-sequence circulating current, which uses sinusoidal pulse width modulation.
Yanfeng Li +3 more
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Adjustable Speed Drives (ASDs) deteriorate the power quality in distribution networks by increasing the harmonic distortions. These harmonics can also cause serious electromagnetic interference-related issues in the network, as they have a high value ...
Arash Moradi, Jalil Yaghoobi, Firuz Zare
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The novelty of the paper contributes to the increase of the reliability of the methods used for evaluation of the inductive CTs accuracy of transformation of the distorted current.
Michal Kaczmarek, Ernest Stano
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Harmonic currents of finite energy and laminations [PDF]
29 ...
Fornæss, John Erik, Sibony, Nessim
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Harmonics Forecasting of Wind and Solar Hybrid Model Driven by DFIG and PMSG Using ANN and ANFIS
Grid integration of Renewable Energy Systems (RES) involves various types of power electronics-based converters and inverters. The use of these electronic-based devices results in inducing both current and voltage harmonics to the grid.
Fawaz M. Al Hadi +2 more
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High-Frequency Behavior of Residual Current Devices [PDF]
The purpose of this paper is to analyze the behavior of residual current devices at frequencies higher than the rated one. Many experiments are carried out by measuring tripping current and time of devices of different typology, produced by different ...
Freschi, Fabio
core +1 more source
Harmonic current estimation is the key technology of power electronics systems to generate a harmonics reference current for harmonic control. In this paper, a novel fundamental and harmonic current detection method based on the state-space model (SSM ...
Dongdong Chen, Long Xiao
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Digital Current-Control Schemes [PDF]
The paper is about comparing the performance of digital signal processor-based current controllers for three-phase active power filters. The wide use of nonlinear loads, such as front-end rectifiers connected to the power distribution systems for dc ...
Limongi, Leonardo +3 more
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Voltage and Current Excitation for Time-Harmonic Eddy-Current Problems [PDF]
We give a systematic presentation of voltage or current intensity excitation for time-harmonic eddy-current problems. The key point of our approach resides in a suitable power law that permits us to understand the role of voltage excitation. We also shed light on the influence of the boundary conditions on the proposed formulations.
Alonso Rodriguez, Ana Maria +1 more
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The Influence of Harmonics on Error Stability of Energy Meter Verification Device and Its Suppression Measures [PDF]
.In view of the problem of poor error stability of the three-phase energy meter verification device under low current load, the working principle and error calculation method of the device are analyzed.
Song Lei +9 more
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