Results 261 to 270 of about 19,762 (300)

Low Total Harmonic Distortion Quadruple Gain Boost Inverter

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019
This paper proposes a DC-AC converter capable of delivering pure sinusoidal voltage and current to resistive as well as inductive load. The proposed converter provides a quadruple boost while converting low-level DC input to high voltage low total harmonic distortion (THD) AC voltage.
Prabhat Ranjan Tripathi, Ritesh Kumar Keshri, P. R. Thakura   +2 more
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Total harmonic distortion analysis simulation

PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409), 2002
Using digital filters and MATLAB software to find out the harmonic components, the work is based on using Butterworth band pass filters with the corresponding cutoff frequency. In this paper, the authors use the idea of using digital filters to analyze and compute the frequencies of the harmonics.
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Indirect Measurement of Total Harmonic Distortion

SAE Technical Paper Series, 1990
<div class="htmlview paragraph">Several methods of indirectly measuring total harmonic distortion (THD) in a power amplifier by measuring characteristics of the input and output waveforms are presented. The relative accuracies of each method is discussed. While the emphasis is on practical methods that can be implemented in a automobile car radio,
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(Invited) Total Harmonic Distortion for PEM Fuel Cell

ECS Transactions, 2017
Electrochemical Impedance Spectroscopy (EIS) is well developed and widely applied for the study of electrode/electrolyte interfaces, films, coatings, and ion-transport mechanisms, among others. Measurement and analysis of traditional EIS is based on linear response in voltage or current to a sinusoidal perturbation.
Xueyuan Zhang, Dominik Moosbauer, Alexander Kojevnikov, Max Yaffe   +3 more
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Selective harmonics elimination: PWM method versus optimized total harmonic distortion

4th International Conference on Power Engineering, Energy and Electrical Drives, 2013
This paper describes two different PWM methods to improve the quality of the output voltage waveform provided from five level inverter. The first one is the selective harmonics elimination (SHEPWM). The purpose is to cancel the 5th, 7th and 11th harmonic row.
Khoukha Imarazene, El Madjid Berkouk, Hachemi Chekireb   +2 more
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Total harmonics distortion reduction using adaptive, Weiner, and Kalman filters

2017 IEEE 7th Annual Computing and Communication Workshop and Conference (CCWC), 2017
Total harmonics distortion (THD) is one of the main problems in power systems due to its effects in generating undesirable issues in power quality. These effects include heating (in transformers, capacitors, motors, and generators), disoperation of electronic equipment, incorrect readings on meters, disoperation of protective relays, and communication ...
Liqaa Alhafadhi, Johnson A. Asumadu, Amean Al Safi   +2 more
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Total harmonic distortion of a pseudosinusoidal signal of an arbitrary wave form generator

Review of Scientific Instruments, 2007
In its simplest shape, the pseudosinusoidal signal given by an arbitrary wave form generator is constituted by a continuation of samples which involve the presence of parasitic harmonics and an increase in its total harmonic distortion (THD) value.
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Optimal technique for total harmonic distortion detection and estimation for smart meter

2012 10th International Power & Energy Conference (IPEC), 2012
This paper proposes an optimal technique for total harmonics distortion detection and estimation for smart meter by applying Fast Fourier Transform (FFT) methodology to detect harmonic distortion. Design considers the precision of constant frequency and inconstant frequent including unbalance voltage in order to enhance efficiency and mitigate harmonic
Eakchai Junput, Sathit Chantree, Monthon Leelajindakrairerk, Chai-Chow Chompoo-Inwai   +3 more
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Performance analysis of UPQC for total harmonic distortion

World Journal of Advanced Engineering Technology and Sciences
In order to mitigate power quality (PQ) issues in electrical power systems, the Unified Power Quality Conditioner (UPQC) is the main topic of this research study. Power Quality problems, such as voltage sag, voltage swell, harmonics, and flicker, are brought on by the increase in nonlinear loads and the integration of renewable energy sources into ...
null Yogesh Kumar Lahre, null Piyush Shrivas, null Sakshi Tomar, null Diksha Komra   +3 more
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Application of Fuzzy Systems in Power Quality: Diagnosis of Total Harmonic Distortions

2018 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE), 2018
This paper proposes a system which estimates the total harmonic distortions (THD) of voltages and currents and evaluates their impacts on power quality through a fuzzy system. Firstly, voltages and currents are measured by sensors and their root means square (RMS) values are calculated in the online by means of the recursive Fourier discrete transform.
Diego H.S. Nolasco, Denis K. Alves, Flavio B. Costa, Eduardo S. Palmeira, Ricardo L.A. Ribeiro, Evandro A. F. Nunes   +5 more
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