Results 31 to 40 of about 1,462,184 (202)

Appropriate methods to analyse power conversion harmonics [PDF]

, 2013
Nowadays, non-linear loads represent the majority of the residential electrical consumers. The limits on emission and immunity are imposed by IEC- standards, however there is a lack in the domain 2 – 150 kHz.
P. Verzele, Verzele, Pauline0001208655352EC0CAB8-0A81-11E2-95DC-4D8F10BDE39D, J. Desmet, Knockaert, JosTW088020007568380000-0002-2980-438226F73904-F0EE-11E1-A9DE-61C894A0A6B4, Desmet, Jan, Knockaert, Jos, Desmet, JanTW080001309151398020003912680000-0002-1884-133XFA8A5676-F0ED-11E1-A9DE-61C894A0A6B4, Verzele, Pauline, J. Knockaert   +8 more
core   +2 more sources

Measurement Based Linear and Nonlinear Time Invariant Representations for High Voltage Inductive Transformer Frequency Response up to 10 kHz

IEEE Access
This paper presents the details of the development, evaluation process, and results of linear and nonlinear time-invariant models used to represent the frequency response of inductive high-voltage instrument transformers.
Imanka Dewayalage, Duane A. Robinson, Sean Elphick, Sarath Perera   +3 more
doaj   +1 more source

Continuous harmonic analysis and power quality measurements in three-phase systems [PDF]

, 2003
A virtual instrument, named Power Quality Meter, is presented for (a) measuring power consumption and harmonics in three-phase systems, under non-sinusoidal and imbalance conditions (b) detecting, classifying and organizes power disturbance events ...
Bravo-Rodríguez, Juan Carlos, Bravo-Rodríguez, Juan Carlos (Coordinador), López Ojeda, Antonio, Montaño Asquerino, Juan-Carlos, Gutiérrez Benítez, Jaime, Castilla Ibáñez, Manuel, Borrás-Talavera, M. Dolores   +6 more
core   +1 more source

Characterisation of Harmonic Resonance Phenomenon of Multi-Parallel PV Inverter Systems: Modelling and Analysis

Energies
Solar PV inverters require output filters to reduce unwanted harmonics in their output, where LCL filters are a more economical choice than larger inductance-only filters. A drawback of these filters is that they can introduce power quality disturbances,
Kasun Peiris, Sean Elphick, Jason David, Duane Robinson   +3 more
doaj   +1 more source

Measurement of High-Frequency Voltage Harmonics above 2 kHz in High-Voltage Networks

Energies
Large-scale renewable energy plants, flexible AC (alternating current) and high voltage DC (direct current) transmission systems, and modern consumer devices utilize power electronics that tend to increase harmonic emissions.
Imanka Dewayalage, Duane A. Robinson, Sean Elphick, Sarath Perera   +3 more
doaj   +1 more source

Study on the pyrolysis characteristics of styrene-grafted polypropylene cable insulation material

AIP Advances
Polypropylene (PP) has garnered significant attention as a cable insulation material due to its exceptional electrical performance and recyclability. Styrene-grafted polypropylene (PP-g) emerges as a promising alternative in this context.
Chao Peng, Fanwu Chu, Mingzhong Xu, Junping Hou, Wei Zhang, Kai Deng, Jian Gong, Zihang Qin   +7 more
doaj   +1 more source

Safe Operation Area of Energy-Storage-Free Dynamic Voltage Restorer

Zhongguo dianli, 2022
Energy-storage-free dynamic voltage restorer (DVR) is a common device used to solve voltage sag problems in engineering, but its actual operation is limited by the parameters of application scenarios.
Mingxing ZHU, Xuan LU, Huaying ZHANG, Qing WANG   +3 more
doaj   +1 more source

Electrical losses in multi-MW wind energy conversion systems [PDF]

, 2012
Publisher Copyright: © 2012, European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ). All rights reserved.This paper proposes a procedure to assess the electrical losses in Wind Energy Conversion Systems ...
Martínez de Alegría, I., Ceballos, S., S. Ceballos, A. Madariaga, Madariaga, A., Martínez de Ilarduya, C. J., C.J. Martinez de Ilarduya, J.L. Martin, Martín, J. L., I. Martinez de Alegria   +9 more
core   +2 more sources

Experiments on High-Resolution Digitizer Accuracy in Measuring Voltage Ratio and Phase Difference of Distorted Harmonic Waveforms above 2 kHz

Metrology
High-resolution multi-channel digitizers are used extensively for precision low voltage measurements in numerous applications and allow the simultaneous measurement of voltage magnitude ratio and phase difference between two different waveforms in power ...
Imanka Dewayalage, Duane A. Robinson, Sean Elphick, Sarath Perera   +3 more
doaj   +1 more source

Hamiltonian energy‐balance method for direct analysis of power systems transient stability

IET Generation, Transmission & Distribution, 2019
This paper outlines a Hamiltonian energy‐balance function for computing stable and unstable regions of power systems. Once the generator model is defined, a certain number of variables (holonomic constraints) specifies its state properties (prefault ...
Emanuelle Machado, Jose Eduardo Onoda Pessanha   +1 more
doaj   +1 more source