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Search results for: REACTIVE POWER COMPENSATION
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Power Surge Compensator based on a Four Level Diode Clamped Inverter for ship application. Average model
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Anomalous diffraction approximation to the light scattering coefficient spectra of marine particles with power-law size distribution
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The acute effects of caffeine intake on time under tension and power generated during the bench press movement
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Short-Term Blood Flow Restriction Increases Power Output and Bar Velocity During the Bench Press
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Changes of Power Output and Velocity During Successive Sets of the Bench Press With Different Duration of Eccentric Movement
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Effect of Electron Beam Power Density on the Structure of Titanium Under Non-Vacuum Electron-Beam Treatment
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Corrigendum: Contrast Tempo of Movement and Its Effect on Power Output and Bar Velocity During Resistance Exercise
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Effect of Microwave Radiation Power on the Size of Aggregates of ZnO NPs Prepared Using Microwave Solvothermal Synthesis
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Issues Related to Power Supply Reliability in Integrated Electronic Security Systems Operated in Buildings and Vast Areas
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The Reliability and Exploitation Analysis Method of the ICT System Power Supply with the Use of Modelling Based on Rough Sets
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The Maximum Power Point Tracking (MPPT) of a Partially Shaded PV Array for Optimization Using the Antlion Algorithm
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Enabling a Stable High-Power Lithium-Bromine Flow Battery Using Task-Specific Ionic Liquids
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Fatigue Damage Development in 14MoV6-3 Steel for Power Plant Pipes Monitored by Digital Image Correlation
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Detremination of the cutting power of the sawing process using both preliminary sawing data and modern fracture mechanics
PublicationPrzedstawiono medodykę prognozowania mocy skrawania dla procesu piłowania drewna cienkimi piłami. Przewidywanie zapotrzebowania mocy skrawania oparte jest na współczesnej mechanice pękania, a do wyznaczenia stałych materiałowych: wiązkości materiału oraz niszczących napężeń ścinających wykorzystano wyniki wstępnych badań eksperymentalnych. Błędy prognozowania nie przekraczają 15.5% dla przypadku cienkich pił gdy rolę znacząca odgrywają...
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Effect of high temperature exposure on the fatigue damage development of X10CrMoVNb9-1 steel for power plant pipes
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Design analysis of turbines for co-generating micro-power plant working in accordance with organic Rankine's cycle
PublicationPrzedstawiono wyniki analizy projektowej turbin dla mikrosiłowni kogeneracyjnej pracującej według organicznego obiegu Rankine'a z wykorzystaniem biopaliwa. Rozważono zakres mocy cieplnej od 25kW do 100kW, któremu odpowiadała możliwa do uzyskania moc elektryczna od 2kW do 12kW. Przeanalizowano projekty turbin osiowych (jedno- i wielostopniowych, także z częściowym zasilaniem), turbin promieniowych i promieniowo-osiowych. Porównano...
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MARKAL LONG-TERM POWER GENERATION SCENARIOS FOR POLAND: INCREASING THE SHARE OF RENEWABLE ENERGY SOURCES BY 2040
PublicationIn this paper, renewable energy sources (RES) support mechanisms in Poland was presented with perspectives of proposed support system modifications, discussed in the project of Renewable Energy Act. In addition, MARKAL model of RES support mechanism was presented, taking into account technology-specific multiplication factors. Two model runs with emission trading system in place and two additional runs without emission trade were...
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MARKAL long-term power generation scenarios for Poland: Increasing the share of renewable energy sources by 2040
PublicationIn this paper, renewable energy sources (RES) support mechanisms in Poland was presented with perspec-tives of proposed support system modifications, discussed in the project of Renewable Energy Act. In ad-dition, MARKAL model of RES support mechanism was presented, taking into account technology-specific multiplication factors. Two model runs with emission trading system in place and two additional runs without emission trade...
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Analysis of the selection of low-temperature medium for a turbine power plant using ocean thermal energy (OTEC)
PublicationThe paper presents the results and conclusions of numerical calculations modelled in the EES program of a closed OTEC cycle. The following mediums were analysed: ammonia, R32, R41, R404a, R407c, R410a, R423a, R500, R502, R507a and R114, R152a, R234fa, R600, R1234yf, R1234ze. Analogous assumptions were adopted as in the ORC cycle with heat regeneration for dry refrigerants without regeneration for wet refrigerants. Each of them...
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Analysis of the selection of low temperature medium for a turbine power plant using ocean thermal energy (OTEC)
PublicationThe paper presents the results and conclusions of numerical calculations modelled in the EES program of a closed OTEC cycle. The following mediums were analysed: ammonia, R32, R41, R404a, R407c, R410a, R423a, R500, R502, R507a and R114, R152a, R234fa, R600, R1234yf, R1234ze. Analogous assumptions were adopted as in the ORC cycle with heat regeneration for dry refrigerants without regeneration for wet refrigerants. Each of them...
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Hybrid high-frequency-SiC and line-frequency-Si based PEBB for MV modular power converters
PublicationIzolowane przekształtniki DC-DC o sterowanym kącie przesunięcia napięć strony pierwotnej i wtórnej są kluczowymi elementami współczesnych modułowych przekształtników energoelektronicznych średniego napięcia (SN). W porównaniu do konwencjonalnych przekształtników SN, przekształtniki modułowe z izolowanymi przetwornicami DC-DC nie wymagają izolacji w postaci wielkogabarytowych transformatorów o częstotliwości sieci. Zastosowanie...
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Conception and design of a hybrid exciter for brushless synchronous generator. Application for autonomous electrical power systems = Koncepcja i projekt hybrydowej wzbudnicy bezszczotkowego generatora synchronicznego. Zastosowanie w autonomicznych systemach elektroenergetycznych.
PublicationThis paper covers a subject of a hybrid excitation system for a brushless synchronous generator working with variable speed in an autonomous energy generation system (e.g. airplane power grid). A hybrid excitation system (hybrid exciter) means a synchronous machine with wound-field and permanent magnet excitation. The hybrid exciter supply a dc field current to the synchronous generator field winding through a rotating rectifier....
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Higher harmonics produced by traction substations – computer modelling and experimental verification
PublicationVoltage and current harmonics have a detrimental effect on the components of a power system. Current harmonics may result in the overload and damage to power transformers, although the rms value of load current does not exceed their current-carrying capacity. Voltage harmonics may result in, for example, damage to capacitor banks used to compensate reactive power. Devices which contribute to both current and voltage distortion...
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Estimation of Selected Synchronous Generator Parameters Based on the Gradient Method
PublicationThe authors present a method for the estimation of synchronous generator model parameters using a gradient algorithm. The paper shows an example of model parameter estimation for a turbogenerator and hydrogenerator, based on the generator voltage time responses obtained during an active and reactive power rejection test.
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Szkolenie w ramach POWER 3.4
EventsMetodologia prowadzenia badań
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Szkolenie w ramach POWER 3.4
EventsWykorzystanie zasobów Open Access w pracy dydaktycznej (Cz.I)
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Szkolenie w ramach POWER 3.4
EventsSztuka autoprezentacji dla dydaktyków i prelegentów
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Szkolenie w ramach POWER 3.4
EventsSztuka autoprezentacji dla dydaktyków i prelegentów.
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Szkolenie w ramach POWER 3.4
EventsWyszukiwanie, przetwarzanie i analiza informacji naukowej w specjalistycznych bazach danych i ich wykorzystanie w procesie dydaktycznym (cz.II)
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Szkolenie w ramach POWER 3.4
EventsWykorzystanie zasobów Open Access w pracy dydaktycznej (Cz.I)
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Szkolenie w ramach POWER 3.4
EventsSztuka autoprezentacji dla dydaktyków i prelegentów
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Szkolenie w ramach POWER 3.4
EventsWyszukiwanie, przetwarzanie i analiza informacji naukowej w specjalistycznych bazach danych i ich wykorzystanie w procesie dydaktycznym (cz.I)
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Szkolenie w ramach POWER 3.4
EventsMetodologia prowadzenia badań
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Szkolenie w ramach POWER 3.4
EventsSztuka autoprezentacji dla dydaktyków i prelegentów
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Szkolenie w ramach POWER 3.4
EventsMetodologia prowadzenia badań
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Szkolenie w ramach POWER 3.4
EventsMetodologia prowadzenia badań
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Szkolenie w ramach POWER 3.4
EventsSztuka autoprezentacji dla dydaktyków i prelegentów
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Szkolenie w ramach POWER 3.4
EventsMetodologia prowadzenia badań
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Szkolenie w ramach POWER 3.4
EventsSztuka autoprezentacji dla dydaktyków i prelegentów
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Szkolenie w ramach POWER 3.4
EventsSzkolenie w ramach POWER 3.4: Wykorzystanie menadżera bibliografii Mendeley w pracy dydaktycznej
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Szkolenie w ramach POWER 3.4
EventsSztuka autoprezentacji dla dydaktyków i prelegentów.
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Szkolenie w ramach POWER 3.4
EventsSztuka autoprezentacji dla dydaktyków i prelegentów.
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Szkolenie w ramach POWER 3.4
EventsWykorzystanie zasobów Open Access w pracy dydaktycznej (Cz. II)
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Szkolenie w ramach POWER 3.4
EventsWykorzystanie zasobów Open Access w pracy dydaktycznej (Cz.I)
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Szkolenie w ramach POWER 3.4
EventsSztuka autoprezentacji dla dydaktyków i prelegentów
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Low temperature processed MnCo2O4 and MnCo1.8Fe0.2O4 as effective protective coatings for solid oxide fuel cell interconnects at 750 °C
PublicationIn this study two materials, MnCo2O4 and MnCo1.8Fe0.2O4 are studied as potential protective coatings for Solid Oxide Fuel Cell interconnects working at 750 °C. First powder fabrication by a modified Pechini method is described followed by a description of the coating procedure. The protective action of the coating applied on Crofer 22 APU is evaluated by following the area specific resistance (ASR) of the scale/coating for 5500...
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Metodyka badań rozwojowych nowego typu silników i pomp satelitowych
PublicationResearch and development of new type satellite motors and satellite pumps SM with small geometrical displacement, from 5 to 73 cm3/rev, has been conducted in cooperation with Stosowanie Maszyn company from Katowice (manufacturer of motors and pump SM). The improvement of construction of those machines, especially construction of axial compensation and construction of fluid distribution channels have been the main problem of research...
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Estimation of Synchronous Generator and AVR Parameters Based on Gradient and Genetic Methods
PublicationThe author present a method for the estimation of selected synchronous generator model and AVR parameters using a gradient and a genetic algorithm. The paper shows an example of model parameter estimation for a turbogenerator, based on the generator voltage time responses obtained during an active and reactive power rejection test
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Arsalan Muhammad Soomar Doctoral Student
PeopleHi, I'm Arsalan Muhammad Soomar, an Electrical Engineer. I received my Master's and Bachelor's Degree in the field of Electrical Engineering from Mehran University of Engineering and Technology, Jamshoro, Sindh, Pakistan. Currently enrolled as a Doctoral student at the Gdansk University of Technology, Gdansk, Poland. Also worked in Yellowlite. INC, Ohio as a Solar Design Engineer. HEADLINE Currently Enrolled as a Doctoral...
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Suppression of Supply Current Harmonics of 18-Pulse Diode Rectifier by Series Active Power Filter with LC Coupling
PublicationThe reported research aims at improving the quality of three-phase rectifier supply currents. An effective method consists of adding properly formed booster voltages to the fundamental supply voltages using a series active filter. In the proposed solution, the booster voltages are generated by three single-phase systems consisting of inverters, LC filters, and single-phase transformers. The application of LC couplings ensures low...