Search results for: VOLTAGE MEASUREMENT , TOPOLOGY , CONTROL SYSTEMS , VOLTAGE CONTROL , FIELD PROGRAMMABLE GATE ARRAYS , CAPACITORS , PULSE WIDTH MODULATION

• Vibroflotation Control of Sandy Soils using DMT and CPTU

  Publication

  • L. Bałachowski
  • N. Kurek

  - Year 2015

  Vibroflotation is a typical improvement method for the cohesionless deposits of high thickness. The compaction method was applied to densify sandy deposits in Gdynia Port. Compaction control was verified with CPTU and DMT tests. Some examples of interpretation of soundings in pre-treated and compacted sands are shown. The classification diagrams are given for pre-treated and compacted sand. The stress history of the deposits is...

• Evaluation of ASON/GMPLS Connection Control Servers Performance

  Publication

  • S. Kaczmarek
  • M. Młynarczuk
  • M. Narloch
  • M. Sac

  - Year 2011

  Performance aspects have always been very important in telecommunications, especially in control elements. That problem also regards ASON/GMLPS network, which is one of the propositions for Next Generation Network (NGN) transport stratum. In this paper we investigate performance of ASON/GMPLS Connection Control Servers (CCSs) in laboratory testbed, which architecture and operation are also described. In order to evaluate the performance...

• Quality prediction of foil capacitors by acoustic emission signals

  Publication

  • K. Józwiak
  • M. Olesz
  • L. Hasse
  • J. Smulko

  - Year 2010

  Jakość i trwałość kondensatorów foliowych jest zależna od ich warunków pracy (np. nadmiarowego napięcia pracy, temperatury, wilgotności) oraz od potencjalnych defektów wprowadzonych na różnych etapach wytwarzania kondensatorów. Nieustanny nacisk na wzrost jakości wytwarzanych elementów przy jednoczesnej redukcji kosztów wytwarzania oznacza, że nowe, tanie i szybkie metody predykcji jakości tych elementów są mocno poszukiwane. W...

• Topology of vibro-impact systems in the neighborhood of grazing

  Publication

  • S. Kryzhevich
  • M. Wiercigroch

  - PHYSICA D-NONLINEAR PHENOMENA - Year 2012

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• An improved adaptive neural voltage controller for turbogenerator

  Publication

  • H. Tiliouine

  - Year 2007

  Opracowano model adaptacyjnego neuronowego regulatora napięcia z nastrojonym współczynnikiem wzmocnienia funkcji przynależności i z nastrojonym współczynnikiem uczenia sieci neuronowej w zależnosci od stanu obciążenia turbogeneratora. Przedstawiono wyniki symulacji mające na celu badania efektywności proponowanego regulatora. Te wyniki porównano z wynikami uzyskanymi z regulatorem o stałym współczynnikiem wzmocnienia funkcji przynależności...

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• Diagnostics of high-voltage varistors by acoustic emission

  Publication

  • L. Hasse
  • J. Smulko
  • L. Kaczmarek

  - Year 2010

  Warystory, szeroko stosowane w ogranicznikach przepięć, powinny być testowane na końcowym etapie ich wytwarzania. Stosowane metody testowania wymagają użycia wysokich napięć i prądów o dużych natężeniach, co jest nidogodne, destrukcyjne i wymaga poboru relatywnie dużych pocy. W artykule zaproponowano zastosowanie analizy sygnału emisji akustycznej do predykcji jakości struktury warystora. Opisano system przygotowany do tej aplikacji,...

• Laboratory tests of medium voltage switchgear isolators

  Publication

  • W. Chmielak
  • T. Daszczynski
  • Z. Pochanke
  • M. Wesolowski
  • R. Szreder
  • N. Obarski

  - Year 2017

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• Increase of Diagnostic Capabilities of Voltage Fluctuation Indicies

  Publication

  • P. Kuwalek
  • P. Kuwałek

  - Year 2020

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• Unidirectional DC/DC Converter with Voltage Inverter for Fast Charging of Electric Vehicle Batteries

  Publication

  • J. R. Szymanski
  • M. Żurek-mortka
  • D. Wojciechowski
  • N. Poliakov

  - ENERGIES - Year 2020

  The paper proposes the adaptation of the industrial plant’s power network to supply electric vehicle (EV) fast-charging converters (above 300 kW) using renewable energy sources (RESs). A 600 V DC microgrid was used to supply energy from RESs for the needs of variable speed motor drives and charging of EV batteries. It has been shown that it is possible to support the supply of drive voltage frequency converters (VFCs) and charging...

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• The Performance of ASON/GMPLS Network with Hierarchical Control Plane Structure

  Publication

  • S. Kaczmarek
  • M. Młynarczuk

  - Year 2019

  The paper regards the problem of ASON/GMPLS network performance with hierarchical control plane structure in condition of incomplete domain network information. The authors propose the hierarchical ASON/GMPLS control plane architecture, which fulfills the requirements of modern optical networks and allows to control the multidomain network with requirement quality of service. The authors examine the scalability and properties of...

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• Remote current measurement with FPGA digital processing

  Publication

  • R. Smyk
  • M. Czyżak

  - Year 2015

  The work presents an implementation of a modular measurement and control systemthat controls variants of mains supply of 230V electrical equipment. The system allowsto supervise power consumption in the office electronic equipment. The system detectsthe instant of the reduced power consumption by a device and makes possible itsswitch-off in order to reduce energy cost. The current is measured with integratedcurrent/voltage converters....

• JOURNAL OF PROCESS CONTROL

  Journals

  ISSN: 0959-1524 , eISSN: 1873-2771

• Induction Motor Multiscalar Model Based Sensorless Control Using Power Measurement

  Publication

  • H. Abu-Rub
  • M. Wlas

  - Year 2007

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• Active feedback noise control in the presence of impulsive disturbances

  Publication

  • M. Niedźwiecki
  • M. Meller

  - Year 2015

  The problem of active feedback control of a narrowband acoustic noise in the presence of impulsive disturbances is considered. It is shown that, when integrated with appropriately designed outlier detector, the proposed earlier feedback control algorithm called SONIC is capable of isolating and rejecting noise pulses. According to our tests this guarantees stable and reliable operation of the closed-loop noise cancelling...

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• Topology and Dynamical Systems in Action - Summer school 2023

  e-Learning Courses

  • J. Signerska-Rynkowska
  • P. Rakowski
  • I. Kuzborska
  • P. Bartłomiejczyk
  • A. Bartłomiejczyk
  • J. Szostak
  • J. Szczepański
  • A. Myszkowski

  The course is designed for participants in the Spinnaker summer school in mathematics.

• Methods for verification safety integrity level in control and protection systems

  Publication

  • M. Śliwiński
  • T. Barnert

  - Year 2007

  W artukule przedstawiono podstawowe oraz zaawansowane ilościowe metody weryfikacji poziomów nienaruszalności bezpieczeństwa SIL w systemach sterowania i zabezpieczeń. Metody te zawierają analizę wrażliwości i niepewności modeli probabilistycznych tych systemów. Pod uwagę wzięte zostały także uszkodzenia o wspólnej przyczynie. Zaprezentowane zostały wyniki analiz oraz zalety ich stosowania.

• Experimental investigations of DAC Systems operating in VAV Control mode

  Publication

  • M. F. Jaskólski

  - Year 2007

  Praca przedstawia techniczne aspekty wykorzystania ciepła sieciowego w bezsprężarkowych, adsorpcyjnych systemach klimatyzacyjnych na przykładzie zrealizowanej instalacji w EC Gdansk.Zaprezentowano również stanowisko oraz wyniki badań eksperymentalnych doyczących wpływu zmian parametrów przepływowych powietrza wilgotnego na efektywność pracy regeneratorów ciepła.

• Specialized genetic operators in drinking water distribution systems control

  Publication

  • A. Cimiński
  • K. Duzinkiewicz

  - PRACE NAUKOWE POLITECHNIKI WARSZAWSKIEJ, SERIA: ELEKTRONIKA - Year 2009

  ..

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• Research Platform for Monitoring, Control and Security of Critical Infrastructure Systems

  Publication

  • G. Ewald
  • T. Zubowicz
  • M. Brdys

  - IFAC Proceedings Volumes - Year 2013

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• On the power systems performance control starting from disturbances measurements

  Publication

  • H. Tiliouine

  - Year 2003

  Referat przedstawia badanie działania układu sterowania w systemie elektroenergetycznym oparte na oszacowanie parametrów. Na podstawie pomiarów wykonanych w stanie zakłóconiowym, parametry te są oszacowane minimizując uchyb pomiędzy wartościami wielkości uzyskanych z pomiarów i wartościami wielkości wyjściowych modelu systemu elektroenergetycznego. W celu zmniejszenia tego uchybu, proponowano dwie metody: klasyczna oparta na czułości...

• Properties of control systems based on nonlinear models of the induction motor.

  Publication

  • Z. Krzemiński
  • A. Lewicki
  • M. Włas

  - Year 2004

  W artykule przedstawiono zastosowanie obserwatora prędkości kątowej wirnika silnika indukcyjnego w nielinowych układach regulacji. Porównano dwa typy układów sterowania multiskalarnego. Przedstawiono przypadek niestabilnej pracy układu nieliniowego sterowania za pomocą symulacji komputerowej.W artykule przedstawiono dwa układy sterowania silnikiem asynchronicznym klatkowym, zasilanym z falownika napięcia, oparte na modelu multiskalarnym,...

• Designing control and protection systems with regard to functional safety aspects.

  Publication

  • M. Śliwiński

  - Year 2005

  Zaproponowano zintegrowane podejście w ocenie bezpieczeństwa funkcjonalnego systemów E/E/PE. Niepewność probabilistycznych miar ryzyka dla elektrycznych, elektronicznych i programowalnych elektronicznych systemów jest reprezentowana za pomocą przedziałów, które są porównywane z przedziałowymi kryteriami probabilistycznymi zdefiniowanymi dla tych systemów przez normę IEC 61508, w postaci czterech poziomów nienaruszalności bezpieczeństwa...

• An Automatic Self-Tuning Control System Design for an Inverted Pendulum

  Publication

  • M. Waszak
  • R. Łangowski

  - IEEE Access - Year 2020

  A control problem of an inverted pendulum in the presence of parametric uncertainty has been investigated in this paper. In particular, synthesis and implementation of an automatic self-tuning regulator for a real inverted pendulum have been given. The main cores of the control system are a swing-up control method and a stabilisation regulator. The first one is based on the energy of an inverted pendulum, whereas the second one...

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• High Voltage

  Journals

  ISSN: 2397-7264

• Nonlinear fuzzy control of the dissolved oxygen in activated sludge processes

  Publication

  • A. Zawadzki
  • R. Piotrowski

  - Year 2012

  Wastewater treatment plant is generally a complex, multivariable, time varying and nonlinear large scale industrial system. Moreover, interactions between the components are very strong. The dissolved oxygen tracking problem is one of the most complex and fundamental issues of biological processes. Air for the aerated tanks is supplied by aeration system (blowers, pipes, diffusers). It is a complex dynamic system. The new control...

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• Intelligent Material Actuators and Their Applications for Structural Dynamic Control

  Publication

  • M. Krawczuk
  • A. Żak
  • K. Majewska
  • Ł. Skarbek
  • W. Ostachowicz

  - Year 2013

  The paper presents an application of inteligent materials to vibration control of structures.

• A High-Efficient Measurement System With Optimization Feature for Prototype CMOS Image Sensors

  Publication

  • M. Kłosowski
  • J. Jakusz
  • W. Jendernalik
  • G. Blakiewicz
  • S. Szczepański
  • S. Kozieł

  - IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT - Year 2018

  In this paper, a gray-scale CMOS image sensor (CIS) characterization system with an optimization feature has been proposed. By using a very fast and precise control of light intensity, based on the pulsewidth-modulation method, it is avoided to measure the illuminance every time. These features accelerate the multicriteria CIS optimization requiring many thousands of measurements. The system throughput is 2.5 Gb/s, which allows...

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• BIOLOGICAL CONTROL

  Journals

  ISSN: 1049-9644 , eISSN: 1090-2112

• Cancer Control

  Journals

  ISSN: 1073-2748

• CONTROL ENGINEERING

  Journals

  ISSN: 0010-8049

• Mechanics and Control

  Journals

  ISSN: 2300-7079

• Erosion Control

  Journals

  ISSN: 1073-7227

• Information and Control

  Journals

  ISSN: 1002-0411

• MOTOR CONTROL

  Journals

  ISSN: 1087-1640 , eISSN: 1543-2696

• TOBACCO CONTROL

  Journals

  ISSN: 0964-4563 , eISSN: 1468-3318

• Study on Methods to Control Interstory Deflections

  Publication

  • S. M. Khatami
  • H. Naderpour
  • S. M. N. Razavi
  • R. Barros
  • A. Jakubczyk-Gałczyńska
  • R. Jankowski

  - Geosciences - Year 2020

  One of the possibilities to prevent building pounding between two adjacent structures is to consider appropriate in-between separation distance. Another approach might be focused on controlling the relative displacements during seismic excitations. Although the majority of building codes around the world recommend the use of some equations of various distances between structures to avoid pounding; a lot of reports after earthquakes...

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• Nonlinear control of induction motor in field weakning region with consideration of stator flux

  Publication

  • Z. Krzemiński
  • M. Adamowicz
  • R. Strzelecki

  - Year 2006

  Metody nieliniowgo sterowania mogą poprawić właściwości silnika indukcyjnego w stanach przejściowych wektora strumienia. Badano sterowanie oparte na modelu multiskalarnym silnika indukcyjnego w zakresie osłabiania pola. Dwie nowe zmienne wejściowe pojawiające się w modelu multiskalarnym są równe czynnej i biernej mocy silnika. Pokazano, że te wielkości mogą byc kompensowane, jeżeli rozważane są jako mierzone zakłócenia. Maksymalny...

• Stanisław Galla dr inż.

  People

  Department of Metrology and Optoelectronics

  Stanisław Galla was born in 1970 in Gdańsk. He graduated from the Secondary Technical School of Mechanical and Electrical Engineering in Gdansk (1990). He studied at the Faculty of Electrical Engineering at Gdansk University of Technology (graduated in 1996). His PhD thesis entitled "Methodology for increasing the accuracy of low frequency measurements of periodic disturbance indicators in low voltage networks" was defended in...

• ADAPTIVE BACKSTEPPING TRACKING CONTROL FOR OVER-ACTUATED DP MARINE VESSEL WITH INERTIA UNCERTAINTIES

  Publication

  • A. Witkowska
  • R. Śmierzchalski

  - International Journal of Applied Mathematics and Computer Science - Year 2018

  Designing a tracking control system for an over-actuated dynamic positioning marine vessel in the case of insufficient information on environmental disturbances, hydrodynamic damping, Coriolis forces and vessel inertia characteristics is considered. The designed adaptive MIMO backstepping control law with control allocation is based on Lyapunov control theory for cascaded systems to guarantee stabilization of the marine vessel...

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• Discrete identification of continuous non-linear and non-stationary dynamical systems that is insensitive to noise correlation and measurement outliers

  Publication

  • J. Kozłowski
  • Z. Kowalczuk

  - Archives of Control Sciences - Year 2023

  The paper uses specific parameter estimation methods to identify the coefficients of continuous-time models represented by linear and non-linear ordinary differential equations. The necessary approximation of such systems in discrete time in the form of utility models is achieved by the use of properly tuned `integrating filters' of the FIR type. The resulting discrete-time descriptions retain the original continuous parameterization...

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• Numerical Simulations for Transonic Flow in Control Valve

  Publication

  • P. Flaszyński
  • P. Doerffer
  • G. Mikułowski
  • J. holnicki-Szulc

  - Year 2013

  Results of numerical simulations for transonic flow in control valve are presented. The valve is the main part of an adaptive pneumatic shock absorber. Flow structure in the valve domain and the influence of the flow non-uniformity in the valve on a mass flow rate is investigated. Numerical simulation results are compared with experimental data.

• Impedance spectra of RC model as a result of testing pulse excitation measurement method

  Open Research Data

  open access

  • G. Lentka

  The impedance spectrum of RC model object obtained using pulse excitation EIS impedance spectrosocpy measurement method. The 1V voltage pulse excitation duration was set to 0.1s and the total acqusition time was set to 1000s. The object under test was built using RC components connected as Baunier model of anticorrosion coating with the following components...

• Switching Regulation in the Control of 5-Phase Permanent Magnet Synchronous Motor Fed by 3×5 Direct Matrix Converter

  Publication

  • K. Ullah

  - Year 2021

  Matrix converter is an AC-AC direct power converter comprising of an array of bi- directional switches. It does not require an intermediate DC-link and allows sinusoidal output waveforms with varying amplitudes and frequencies. The configuration of these bi- directional switches decides the number of inputs and outputs...

• Intelligent platform for communication, control and management of modern enterprises

  Publication

  • Z. Kowalczuk
  • J. Wszołek

  - FOUNDATIONS OF CONTROL AND MANAGEMENT SCIENCES - Year 2008

  W artykule przedstawiono praktyczną metodę tworzenia interaktywnej i inteligentnej platformy do kontroli i zarządzania nowoczesną firmą z zastosowaniem sieci telekomunikacyjnej. Omówiono sposób realizacji poszczególnych etapów projektowych, dokonując przy tym wyboru konkretnych technologii informatycznych, takich jak relacyjne bazy danych, technologie bezprzewodowe oraz czynników bezpieczeństwa.

• Leszek Jarzębowicz dr hab. inż.

  People

  Department of Electrical Engineering of Transport

  Leszek Jarzebowicz received the M.Sc., Ph.D. and D.Sc. degrees from Gdansk University of Technology (GUT), Poland, in 2005, 2010 and 2019, respectively. His research areas include control and modeling of electric drives, diagnostics of railway vehicles, analysis of energy efficiency in electrified transport, and microprocessor implementation of control algorithms. His teaching interests focus on electric vehicles, electrical engineering...

• Managing safety of industrial hazardous installations with emphasis on the control systems, interfaces and human factors

  Publication

  • P. Kacprzak
  • K. Kosmowski

  - Year 2010

  In the paper a procedure for the layer of protection analysis (LOPA) as a tool to evaluate the risk of accident scenarios occurrence in hazardous installations is outlined. In such installations several protection layers exist. Human operator performance in each layer is unavoidable, but the role and tasks are different and depend on the context of situation. Based on suggestions form literature (EEMUA, CREAM) and own proposals...

• Iterative learning approach to active noise control of highly autocorrelated signals with applications to machinery noise

  Publication

  • A. Lasota
  • M. Meller

  - IET Signal Processing - Year 2020

  This paper discusses the design and application of iterative learning control (ILC) and repetitive control (RC) for high modal density systems. Typical examples of these systems are structural and acoustical systems considered in active structural acoustic control (ASAC) and active noise control (ANC) applications. The application of traditional ILC and RC design techniques, which are based on a parametric system model, on systems...

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• Comparison of Two Nonlinear Predictive Control Algorithms for Dissolved Oxygen Tracking Problem at WWTP

  Publication

  • R. Piotrowski

  - Journal of Automation, Mobile Robotics and Intelligent Systems - JAMRIS - Year 2016

  The wastewater treatment plant is classified as a complex system, due to its nonlinear dynamics, large uncertainty of disturbance inputs, multiple time scales in the internal process dynamics, and multivariable structure. The aeration process, in turn, is an important and expensive part of wastewater treatment plant operation. All operating parameters of the aeration in biological processes are to be precisely controlled to provide...

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• Improving the production planning and control process

  Publication

  • J. Łopatowska

  - Zarządzanie i Finanse - Year 2015

  Focusing the activities of a production business on the strategy based on quality entails orientation on meeting the expectations of the customers with respect to the product itself, and the terms of its delivery. The article notes the role of the production planning and control process in improving the quality of the business offer. It identifies the objectives set for the process from the perspective of meeting the expectations...

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• 2022/2023_ZIMA Automatic Control & Robotics

  e-Learning Courses

  • M. S. Tatara
  • P. A. Kaczmarek

  Lecture and laboratory