Articles

Letzte Einträge:
2015-06-18
10:12
Analysis of Mathematical Modeling of PV Module with MPPT Algorithm / Chitti Babu, B ; Cermak, T ; Gurjar, S ; Leonowicz, Z ; et al [ENY-ARTICLE-2015-364]
This paper presents the mathematical modeling of photovoltaic (PV) module with the effective comparison of two popular maximum power point tracking (MPPT) techniques; Generally, Maximum Power Point Tracking (MPPT) techniques are used in PV System to extract maximum possible power which in turn depends on solar irradiance and temperature of PV module. [...]
http://zet10.ipee.pwr.wroc.pl/record/457/files/
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2015-06-18
09:35
AC Power and Energy Measurements based on Physical Definitions / Kolanko, J ; Leonowicz, Z ; Ladniak, L ; Musz, P ; et al [ENY-ARTICLE-2015-363]
The article presents the AC power measurements based on physical definitions as introduced by the draft German standard DIN 40110 in 1970 and its practical application as a power signal processor. [...]
http://zet10.ipee.pwr.wroc.pl/record/456/files/
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2014-05-24
01:14
Determining of Fault Locations with Hilbert – Huang Transformation on XLPE Cables between Land and Offshore Substations / Bernadić, A ; Leonowicz, Z [ENY-ARTICLE-2014-362]
Using of mathematical transformations and digital signal processing (DSP) methods of recorded voltage and currents in power systems in order to extract important informations about physical processes is already known. [...]
http://zet10.ipee.pwr.wroc.pl/record/453/files/
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2014-05-24
01:07
Wide-area system of registration and processing of power quality data in power grid with distributed generation Part I. System description, functional tests and synchronous recordings Part II. Localization and tracking of the sources of disturbances / Leonowicz, Z ; Rezmer, J ; Sikorski, T ; Szymanda, J ; et al [ENY-ARTICLE-2014-361]
This paper presents the developed and built comprehensive system of registration, archiving and data processing for the wide-area monitoring of power quality in a separated part of real power grid with distributed renewable generation. [...]
http://zet10.ipee.pwr.wroc.pl/record/452/files/
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2013-11-20
16:18
Assessment of Power Quality in Wind Power Systems / Leonowicz, Z [DOI:10.1109/EEEIC.2011.5874665 ] [ENY-ARTICLE-2013-360]
Wind power generation systems influence power quality in a very specific manner creating the requirements for detailed and correct analysis of disturbances caused by wind generators. [...]
http://zet10.ipee.pwr.wroc.pl/record/451/files/
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2013-10-29
18:03
Entrainment of quartz in flotation tests with MIBC frother / Szyszka, D ; Drzymala, J ; Mielczarski, J [ENY-ARTICLE-2013-359]
During passing gas bubbles through suspensions containing hydrophobic or/and hydrophilic particles, some mechanical carryover of particles to the froth layer always takes place. [...]
http://zet10.ipee.pwr.wroc.pl/record/448/files/
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2013-10-29
12:12
WYNIESIENIE MECHANICZNE ZIAREN PODDANYCH FLOTACJI WYŁĄCZNIE SPIENIACZEM / Szyszka, D [ISSN 1732-6702] [ENY-ARTICLE-2013-358]
Z przeglądu dotychczasowych badań oraz badań opisanych w tym artykule, wynika że wzrost stężenia spieniacza powoduje nasilenie flotacji mechanicznej; ponadto istnieje pewne stężenie graniczne, przy którym krzywa zależności wychód stężenie spieniacza osiąga plateau. [...]
http://zet10.ipee.pwr.wroc.pl/record/447/files/
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2013-10-29
10:55
Concentration of a-terpineol and (2-dodecanoyloxyethyl)trimethylammonium bromide required for prevention of air bubble coalescence in aqueous solutions. / Szyszka, D ; Drzymała, J ; Łuczyński, J [ISSN 0137-1282] [ENY-ARTICLE-2013-357]
Flotation is a widely used process in mineral pro cessing. [...]
http://zet10.ipee.pwr.wroc.pl/record/446/files/
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2013-10-29
10:14
STUDY OF CONTACT ANGLE OF LIQUID ON SOLID SURFACE AND SOLID ON LIQUID SURFACE / SZYSZKA, D. [ISSN 0370-0798doi: 10.5277/gig121810 ] [ENY-ARTICLE-2013-355]
The paper presents a study on the phenomenon of wetting of minerals in the two cases where a wetted solid is placed on a liquid surface and a liquid is on a flat solid surface. [...]
http://zet10.ipee.pwr.wroc.pl/record/444/files/
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2013-10-26
08:14
Analysis of Sub-Harmonics in Power Systems / Leonowicz, Z [10.1109/EEEIC.2010.5489951 ] [ENY-ARTICLE-2013-354]
With a wide range of power electronics-related applications in power systems, harmonic currents are increasing at an alarming rate which has greatly deteriorated the power quality in electrical power networks. [...]
http://zet10.ipee.pwr.wroc.pl/record/443/files/
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2013-09-05
15:33
Application of the Prony Method for Compensation of Errors in Distance Relays / Trujillo, L ; Conde, A ; Leonowicz, Z [doi: 10.1109/EEEIC.2013.6549580 ] [ENY-ARTICLE-2013-352]
In this paper we propose an application of the Prony method as a filtering technique for distance relays. [...]
http://zet10.ipee.pwr.wroc.pl/record/440/files/
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2013-09-05
15:15
TSC transformer with asymmetric source and load / Mach, V ; Gono, R ; Leonowicz, Z [ENY-ARTICLE-2013-351]
The paper analyses unconventional connection of a three-phase transformer with asymmetric source and load. [...]
http://zet10.ipee.pwr.wroc.pl/record/439/files/
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2013-01-08
14:29
Degradation of metal oxide varistors caused by electrical stresses / Chrzan, K L [ENY-ARTICLE-2013-350]
The degradation of ZnO elements under AC or DC operating voltage and impulse current is described. [...]
http://zet10.ipee.pwr.wroc.pl/record/437/files/
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2013-01-08
14:19
Influence of profile on the pollution performance of ceramic long-rod insulators / Chrzan, K L [ENY-ARTICLE-2013-349]
The long rod insulators with different profiles were shown. [...]
http://zet10.ipee.pwr.wroc.pl/record/436/files/
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2013-01-08
14:05
Franklin rods - sharp or blunt ? / Chrzan, K L [ENY-ARTICLE-2013-348]
This paper gives the historical background of 250 year old question: should the Franklin rod tip be sharp or blunt ? The earlier works, the new field results from USA and own laboratory experiments are presented. [...]
http://zet10.ipee.pwr.wroc.pl/record/435/files/
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2013-01-08
14:01
The threat caused by fires under high voltage lines / Chrzan, K L ; Wroblewski, Z. [ENY-ARTICLE-2013-347]
The effect of fires on the flashover voltage of power lines has been investigated in Brazil, Mexico, Canada, USA, South Africa, Australia and Poland. [...]
http://zet10.ipee.pwr.wroc.pl/record/434/files/
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2013-01-08
13:56
HV on-site testing on cables by alternating voltage of variable frequency / Hauschild, W. ; Schierig, S. ; Chrzan, K L [ENY-ARTICLE-2013-346]
Frequency-tuned resonant test systems are, meanwhile, state-of-the-art for on-site testing and diagnostics on high-voltage plastic-insulated cables. [...]
http://zet10.ipee.pwr.wroc.pl/record/433/files/
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2013-01-08
13:49
Degradation and destruction of ZnO varistors caused by current pulses / Chrzan, K L ; Wroblewski, Z. [ENY-ARTICLE-2013-345]
Although the modern metal oxide elements are resistant to degradation caused by continuous operating voltage the degradation or destruction caused by current impulses, especially lightning currents, is still a serious problem. [...]
http://zet10.ipee.pwr.wroc.pl/record/432/files/
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2013-01-08
13:44
Effect of acid rain on outdoor insulators / Chrzan, K L ; Andino, J.M. ; Twarowski, R. [ENY-ARTICLE-2013-344]
This paper gives an overview of the acid rain problem in Europe, Poland and the Polish province of Silesia. [...]
http://zet10.ipee.pwr.wroc.pl/record/431/files/
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2013-01-08
13:38
Temperature monitoring of metal oxide surge arresters / Chrzan, K L ; Hinrichsen, V. [ENY-ARTICLE-2013-343]
Varistor overtemperature above the ambient is an important state parameter of metal oxide surge arresters. [...]
http://zet10.ipee.pwr.wroc.pl/record/430/files/
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