Electrical Engineering Wroclaw University of Technology

Electrical Engineering Wroclaw University of Technology 15 records found  1 - 10next  jump to record: Search took 0.02 seconds. 
1. 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. [...]
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2. Fault Location in Power Networks with Mixed Feeders using the Complex Space-Phasor and Hilbert-Huang Transform / Bernadić, A ; Leonowicz, Z [http://dx.doi.org/10.1016/j.ijepes.2012.04.012] [ENY-ARTICLE-2012-339]
The paper introduces a practical approach to power system fault location in power networks using advanced fault signal processing. [...]
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3. Impulse flashover of strings containing standard and semi-conducting disc insulators / Chrzan, K L ; Elsaesser, O [ENY-ARTICLE-2012-324]
Insulators with semi-conducting glazes (SCG insulators) are used mainly in heavily polluted areas. [...]
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4. Modern spectral analysis of non-stationary signals in electrical power systems / Leonowicz, Z ; Lobos, T ; Schegner, P [RZ I07/2002/I-048] [ENY-ARTICLE-2009-251]
A novel approach to harmonic and interharmonic analysis, based on the “subspace” methods, is proposed. [...]
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5. Influence of High Voltage Insulator on Pollution Flashover Voltage / Wankowicz, J G ; Pohl, Z [ENY-ARTICLE-2009-233]
Results of pollution flashover voltage measurements and optical observation obtained for high voltage insulators placed in the vertical and the horizontal positions are presented. [...]
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6. Distributions of Polarization in PVDF Piezocables / Motyl, E [ENY-ARTICLE-2008-165]
The pulsed (PEA) and step (SEA) electroacoustic methods — applied for the measurements of polarisation distribution along the radius of piezoelectric cables. [...]
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7. Wavelet Transform Approach to High Impedance Fault Detection in MV Networks / Michalik, M ; Rebizant, W ; Lukowicz, M ; Lee, S J ; et al [ENY-ARTICLE-2008-145]
Application of wavelet transform technique to high impedance arcing fault detection in distribution networks is presented. [...]
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8. Impact of Distributed Generation on Electrical Power Network / Khan, U N [ENY-ARTICLE-2008-142]
In today’s world, the demand for the electric power is growing rapidly; to overcome this, many power generation resources are constructing in all over the globe. [...]
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9. Optimal Sizing of Fixed Capacitor Banks Placed on a Distorted Interconnected Distribution Networks by Genetic Algorithms / Galal Sayed, A ; Hosam K M, Y [ENY-ARTICLE-2008-138]
In this paper, the optimal sizing of fixed capacitor banks problem in a distorted interconnected distribution system is formulated and solved by a Genetic Algorithm (GA) solution technique to minimize the cost of power production and capacitor banks under the constraints include voltage limits , sizes of installed capacitors and Total Harmonic Distortion (THD), the algorithm is applied on IEEE 30-bus test system and the results are given for different cases: Light and heavy harmonic cases. [...]
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10. Instantaneous Frequency Calculation Using Wigner Distribution / Sikorski, T [ENY-ARTICLE-2008-133]
This paper introduces two-dimensional methods of observation and diagnosis of non-stationary signals in electrical engineering as well as its further application in instantaneous frequency calculation. [...]
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