Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Amir Tokić"'
Autor:
Ivan Ramljak, Amir Tokić
Publikováno v:
AIMS Energy, Vol 8, Iss 1, Pp 1-26 (2020)
This paper analyses harmonic emission of different light-emitting diode (LED) lighting systems. Basic mathematical analysis of harmonic emission was presented. Paper deals with single LED lights (bulbs) and street lighting systems formed by luminarie
Externí odkaz:
https://doaj.org/article/8ab3ae31d93f452e859a6b79649a21c2
THE NUMERICAL CALCULATION OF LOW FREQUENCY ELECTROMAGNETIC TRANSIENT PHENOMENA IN POWER TRANSFORMERS
Autor:
null Amir Tokić, null Ivo Uglešić
Publikováno v:
Journal of Energy - Energija. 56:584-607
In this article, a transformer model is presented that is applicable to low frequency electromagnetic transient phenomena of up to 1 kHz. An example of the energization of a no-load transformer is analyzed. A simplifed analytical approach is presente
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdf968cbe8e44cfa78a4f8da89b36152
https://doi.org/10.37798/2007565368
https://doi.org/10.37798/2007565368
Publikováno v:
International Journal of Energy Economics and Policy, Vol 10, Iss 5, Pp 524-530 (2020)
Bosnia and Herzegovina is one of the richest countries in the Balkans in terms of renewable energy sources. Although Bosnia and Herzegovina has energy sources such as geothermal, solar and wind, the primary sources of electricity supply are from hydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b653d7e47279474240b46311b72be18
https://doi.org/10.32479/ijeep.9777
https://doi.org/10.32479/ijeep.9777
Correctly modelling the nonlinear saturation characteristics of the transformer iron core is of great importance in steady-state calculations (harmonics and power quality) and calculations of the electromagnetic transients (inrush current, ferroreson
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9381e9539bcf542cecb061a3d27f48f3
https://doi.org/10.1007/s00202-020-01156-7
https://doi.org/10.1007/s00202-020-01156-7
Publikováno v:
IET Science, Measurement & Technology. 11:339-345
The study presents the evolution of a measurement uncertainty concept from the traditional error approach up to modern calculation methods. First, a method based on the internationally accepted document Guide to the Expression of Uncertainty in Measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa65c2c8bff6217ed7bedd36f4d1deb4
https://doi.org/10.1049/iet-smt.2016.0269
https://doi.org/10.1049/iet-smt.2016.0269
The paper presents a reduced form of the algorithm for converting a measured RMS transformer characteristic into the corresponding peak instantaneous transformer saturation curve. The peak instantaneous saturation curve is an essential input for stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0fcdfa2796400f2df2fc7b86da9589f
https://www.bib.irb.hr/1043423
https://www.bib.irb.hr/1043423
Publikováno v:
IEEE Transactions on Power Delivery. 31:532-540
The recent rapid concentration increase of single-phase rectifier-based loads has led to the increasingly significant problem of current and voltage distortion in low-power electrical networks. To successfully perform a prediction of the current and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::706d7911261c0908aad6fb361453f41d
https://doi.org/10.1109/tpwrd.2015.2424914
https://doi.org/10.1109/tpwrd.2015.2424914
Publikováno v:
ISGT Europe
A specific source of harmonic currents in power grid are fluorescent lamps with electromagnetic ballast. A new model of fluorescent lamps with electromagnetic ballast is presented in this paper. Also, applicability to simulations of fluorescent lamp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b75c132aa54378540e40c4a642467c28
https://doi.org/10.1109/isgteurope.2018.8571760
https://doi.org/10.1109/isgteurope.2018.8571760
Autor:
Amir Tokić, Jasmin Smajic
Publikováno v:
IEEE Transactions on Power Delivery. 30:342-350
The predictive power of transient ferroresonance simulations depends mainly on the accuracy and fidelity of the power transformer model used for simulating complete systems involving all relevant network components. This paper considers three ways of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e35b83030d9985f617ddb5fe922532cb
https://doi.org/10.1109/tpwrd.2014.2346766
https://doi.org/10.1109/tpwrd.2014.2346766
Publikováno v:
IEEE Access, Vol 11, Pp 58937-58946 (2023)
Ferroresonance is a non-linear and dangerous resonance phenomenon that can affect power networks and damage electrical equipment. The ferroresonance phenomenon is examined by dividing it into classes, with chaotic ferroresonance being the most danger
Externí odkaz:
https://doaj.org/article/c361d86eda4940afac9ca372c1fead2a