Results 21 to 30 of about 19,670 (300)

Interpretation of partial discharge activity in the presence of harmonics [PDF]

, 2010
Recent work has identified that circumstances of equipment operation can radically change condition monitoring data. This contribution investigates the significance of considering circumstance monitoring on the diagnostic interpretation of such condition
Rudd, S. E., Catterson, V.M., Bahadoorsingh, S., S. M. Rowland, S. D. J. McArthur, Catterson, V. M., S. Bahadoorsingh, Rudd, S.E., McArthur, S.D.J., S. E. Rudd, Rowland, S.M., Rowland, S. M.; id_orcid, V. M. Catterson, McArthur, S. D J   +13 more
core   +1 more source

A NEW STRUCTURE OF FIVE-LEVEL DIODE CLAMPED INVERTER WITH REDUCING ITS ELEMENTS

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2018
At the high power switching circuit's applications, when the harmonic distortion is harmful, a multi-level diode clamped inverter is useful, especially when reduced total harmonic distortion and high power are desired.
Othman M. Anssari
doaj   +1 more source

A novel design of fourth-order harmonic passive filters for total demand distortion minimization using crow spiral-based search algorithm

Ain Shams Engineering Journal, 2022
Mathematical design of a new fourth-order harmonic passive filter is presented and its optimal strategy is proposed with regards to various design scenarios. The considered objective function is total demand distortion minimization of the supply current.
Nehad M. Khattab, Shady H.E. Abdel Aleem, Aboul'Fotouh El'Gharably, Tarek A. Boghdady, Rania A. Turky, Ziad M. Ali, Mahmoud M. Sayed   +6 more
doaj   +1 more source

An Effective Technique for Reducing Total Harmonics Distortion of Multilevel Inverter [PDF]

Journal of Intelligent Systems, 2017
Abstract In this paper, an adaptive neuro fuzzy interference system (ANFIS) is proposed for eliminating voltage harmonics present in the multilevel inverter. It is achieved by reducing the total harmonic distortion (THD) present in the multilevel inverter output voltage.
G. Nageswara Rao, K. Chandra Sekhar, P. Sangameswararaju   +2 more
openaire   +2 more sources

Refined convolution‐based measures for real‐time harmonic distortions estimation in power system dominated by inverter‐based resources

IET Power Electronics, 2023
Real‐time estimating harmonic distortion levels near the Point of Interconnections of grid‐connected inverter‐based resources (IBRs) is critical for maintaining the operational reliability and security of the power grid, particularly during transients ...
Reza Saeed Kandezy, Masoud Safarishaal, Rasul Hemmati, John Ning Jiang   +3 more
doaj   +1 more source

Optimal Harmonic Mitigation in Distribution Systems with Inverter Based Distributed Generation

Applied Sciences, 2021
In recent years, with the widespread use of non-linear loads power electronic devices associated with the penetration of various renewable energy sources, the distribution system is highly affected by harmonic distortion caused by these sources. Moreover,
Ahmed S. Abbas, Ragab A. El-Sehiemy, Adel Abou El-Ela, Eman Salah Ali, Karar Mahmoud, Matti Lehtonen, Mohamed M. F. Darwish   +6 more
doaj   +1 more source

Problem of Total Harmonic Distortion Measurement Performed by Smart Energy Meters

Measurement Science Review, 2022
Currently, electricity is treated as commodity that should be delivered from a distributor to a consumer with a certain quality. The power quality is defined by the set of measures with specific limit values.
Kuwałek Piotr, Wiczyński Grzegorz
doaj   +1 more source

Minimization of Voltage Harmonic Distortion of Synchronous Generators under Non-Linear Loading via Modulated Field Current

Energies, 2023
The synchronous generators (SGs) supplying non-linear loads have harmonically distorted terminal voltages. Hence, these distorted terminal voltages adversely affect the performance parameters of the supplied loads such as the power factor, current ...
Oktay Karakaya, Murat Erhan Balci, Mehmet Hakan Hocaoglu   +2 more
doaj   +1 more source

Designing Passive Harmonic Filter of Electric Propulsion System on Tanker Ship

, 2018
Harmonic is a frequency defect that have some negative effect to the electrical network system. In a ship, electrical network system are interconnected to each other to another electrical consumer device.
Zaman, Muhammad Badrus; Department of Marine Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Satrio, Faisal Muhammad, Semin, Semin; Department of Marine Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Kusuma, Indra Ranu; Department of Marine Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya 60111   +3 more
core   +1 more source

Improvement Of Power Quality In Hvdc Transmission Systems With Auxiliary Converters

Eletrônica de Potência, 2007
This paper intends to discuss some practical results of the reverse-use of the harmonic distortion energy from idle periods in conventional HVDC converters.
J. B Parizzi, F. A Farret, A. B. Serdotte   +2 more
doaj   +1 more source