Electrical Engineering Wroclaw University of Technology

Electrical Engineering Wroclaw University of Technology 24 records found  previous11 - 20next  jump to record: Search took 0.03 seconds. 
11. Relaxation properties of glass and graphite loaded PTFE composites / Motyl, E ; Lowkis, B [I07/2001/P-017] [ENY-ARTICLE-2008-173]
The relaxation properties of polytetrafluoroethylene (PTFE) blends loaded with graphite flakes and glass fibres have been studied using dielectric spectroscopy. [...]
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12. Measurements of interfacial charges in layered PTFE using step electroacoustic technique / Motyl, E [I07/2001/I-019] [ENY-ARTICLE-2008-170]
The step-electroacoustic (SEA) technique was applied to measure interfacial charges in layered PTFE. [...]
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13. Generation of Short Acoustic Waveforms Using Piezoelements / Motyl, E [I07/2001/I-058] [ENY-ARTICLE-2008-167]
Polymeric (PVDF), ceramic (PZT), crystalline (LiNb03) and composite (PZT/PS) piezoelectric elements were used as actuator, for generation of short standard waves Such kind of acoustic waveforms are useful for space charge distribution measurements in dielectric by pressure propagation method. [...]
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14. 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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15. Fuzzy Logic Application to Out-Of-Step Protection of Generators / Rebizant, W ; Feser, K [I08/2001/I-110] [ENY-ARTICLE-2008-163]
Efficient protection scheme against out-of-step (OS) conditions based on fuzzy logic (FL) technique is presented. [...]
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16. Efficient Frequency-Adaptive Amplitude Tracking Algorithms for Protection Purposes / Rebizant, W ; Rusek, B [I08/2003/I-091] [ENY-ARTICLE-2008-159]
The new, fast and adaptive algorithms for measurement of signal amplitude for protection and control purposes are presented. [...]
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17. Asynchronous Generator Behavior After a Sudden Load Rejection / Rebizant, W ; Terzija, V [I08/2003/I-092] [ENY-ARTICLE-2008-158]
In the paper load rejection test, performed at a hydro power plant in Sweden, equipped with asynchronous generators, is described and analysed from the electromechanical transient processes and signal distortions points of view. [...]
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18. The Perceived Power Quality Way as New Frontier of Relationships between Customers and Producers / Leccese, F [ENY-ARTICLE-2008-139]
The description of perceived power quality state of art is presented. [...]
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19. 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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20. Measurement of IEC Groups and Subgroups Using Advanced Spectrum Estimation Methods / Bracale, A ; Carpinelli, G ; Leonowicz, Z ; Lobos, T ; et al [ENY-ARTICLE-2008-117]
The International Electrotechnical Commission (IEC) standards characterize the waveform distortions in power systems with the amplitudes of harmonic and interharmonic groups and subgroups. [...]
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