Search results for: backstepiing control

• Rivers Try Harder. Reversed “Differential Erosion” as Geological Control of Flood in the Large Fluvial Systems in Poland

  Publication

  • J. Bihałowicz
  • G. Wierzbicki

  - Water - Year 2021

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• Discrete-time predictive control design based on overparameterized delay-plant models and identified cancellation order.

  Publication

  • Z. Kowalczuk
  • P. Suchomski

  - Year 2005

  Praca dotyczy uogólnionego sterowania predykcyjnego (GPC) obiektami opisanymi dyskretnoczasowymi modelami CARIMA z uproszczeniami (nieminimalnych, przeparametryzowanych) oraz o niezerowym opóźnieniu transportowym. Optymalne sterowanie predykcyjne wyznacza się na podstawie minimalnowariancyjnego oszacowania przyszłej odpowiedzi sterowanego obiektu. Poprzez analizę warunków rozwiązywalności zadania syntezy sterownika GPC, sformułowano...

• Robust continuous-time controller design via structural Youla-Kučera parameterization with application to predictive control.

  Publication

  • Z. Kowalczuk
  • P. Suchomski

  - Year 2004

  Praca dotyczy projektowania ciągłoczasowego sterowania liniowymi układami SISO o niepewnych parametrach w celu uzyskania nominalnej i odpornej stabilności oraz nominalnej i odpornej jakości regulacji. Specyficzne zastosowanie koncepcji parametryzacji Youli-Kučery (YK) prowadzi do nowego zastosowania obserwatorowych struktur sterowania. Metoda ta została połączona z nominalną strategią uogólnionego sterowania predykcyjnego CGPC,...

• space-vector pulse width modulation for three-level npc converter with the neutral point voltage control

  Publication

  • A. Lewicki
  • Z. Krzemiński
  • H. Abu-Rub

  - IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS - Year 2011

  Przedstawiono strategię modulacji PWM dla trójpoziomowych falowników NPC z predykcją i kompensacją asymetrii rozkładu napięcia na kondensatorach obwodu pośredniczącego

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• Labview in mechatronic design of control system for three wheeled mobile platform at time changeable performance index

  Publication

  • K. J. Kaliński
  • C. Buchholz

  - Year 2011

  Praca przedstawia metodykę projektowania mechatronicznego w środowisku Labview systemu sterowania trójkołową platformą mobilną przy zmiennym w czasie energetycznym wskaźniku jakości, zaproponowanym i rozwiniętym w pracach K. Kalińskiego. Autorzy przedstawili ogólną koncepcję stanowiska badawczego oraz badali rozmieszczenie elementów układu sterowania. Ponadto, artykuł zawiera wyniki testów i symulacji zrealizowanych w trakcie programu...

• Stress coping strategies and their clinical correlates in patients with psychosis at various stages of illness: A case‐control study

  Publication

  • P. Piotrowski
  • J. Rymaszewska
  • B. Stańczykiewicz
  • M. Małecka
  • K. Kotowicz
  • J. Samochowiec
  • A. Samochowiec
  • P. Plichta
  • S. Kalinowska
  • B. Misiak

  - Early Intervention in Psychiatry - Year 2020

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• Clinical characteristics, antihypertensive medication use and blood pressure control among patients with treatment-resistant hypertension

  Publication

  • C. Carcel
  • B. Neal
  • S. Oparil
  • K. Rogers
  • K. Narkiewicz
  • J. Wang
  • E. Schiffrin
  • N. Poulter
  • M. Azizi
  • J. Chalmers

  - JOURNAL OF HYPERTENSION - Year 2019

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• Modelling and Control of a Brushless Multiphase Doubly-Fed Induction Generator in a Stand-Alone Wind Generation System

  Publication

  • K. Blecharz
  • R. Ryndzionek
  • F. Kutt

  - IEEE Access - Year 2024

  The development of the novel multiphase brushless doubly-fed generator system and voltage controller for stand-alone mode configuration is proposed in this paper. The generator system is based on the new machine construction with multiphase control winding and traditional three-phase power winding. The dynamic model of multiphase brushless doubly-fed generator is presented, and the control strategy for voltage amplitude and frequency...

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• Advanced seismic control strategies for smart base isolation buildings utilizing active tendon and MR dampers

  Publication

  • M. Akbari
  • J. Palizvan Zand
  • T. Falborski
  • R. Jankowski

  - ENGINEERING STRUCTURES - Year 2024

  This paper investigates the seismic behaviour of a five-storey shear building that incorporates a base isolation system. Initially, the study considers passive base isolation and employs a multi-objective archived-based whale optimization algorithm called MAWOA to optimize the parameters of base isolation. Subsequently, a novel model is proposed, which incorporates an interval type-2 Takagi-Sugeno fuzzy logic controller (IT2TSFLC)...

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• Population-based case-control study of alpha 1-antitrypsin and SLC11A1 in Crohn's disease and ulcerative colitis.

  Publication

  • R. Kotlowski
  • C. Bernstein
  • M. Silverberg
  • D. Krause

  - INFLAMMATORY BOWEL DISEASES - Year 2008

  Background: Crohn’s disease (CD) and ulcerative colitis (UC) are chronic inflammatory diseases of the digestive tract. Genetic factors and an abnormal immune response to infections are suspected to be involved in inflammatory bowel diseases. Methods: In the present study 300 blood samples from CD patients (n 100), UC patients (n 100), and healthy controls (n 100) were taken from a population-based case-control study. PCR assays...

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• Two-Step Model Based Adaptive Controller for Dissolved Oxygen Control in Sequencing Wastewater Batch Reactor

  Publication

  • P. Hirsch
  • R. Piotrowski
  • K. Duzinkiewicz

  - Year 2015

  Dissolved Oxygen (DO) concentration is a crucial parameter for efficient operation of biological processes taking place in the activated sludge Wastewater Treatment Plant (WWTP). High-quality DO control is difficult to achieve because of complex nonlinear behavior of the plant and substantial influent disturbances. A method to improve the Direct Model Reference Adaptive Control (DMRAC) technology in application to DO tracking for...

• Multi-Objective Water Distribution Systems Control of Pumping Cost, Water Quality, and Storage-Reliability Constraints

  Publication

  • W. Kurek
  • A. Ostfeld

  - JOURNAL OF ENVIRONMENTAL MANAGEMENT - Year 2013

  This work describes a multi-objective model for trading-off pumping cost and water quality for water distribution systems operation. Constraints are imposed on flows and pressures, on periodical tanks operation, and on tanks storage. The methodology links the multi-objective SPEA2 algorithm with EPANET, and is applied on two example applications of increasing complexity, under extended period simulation conditions and variable...

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• Mathematical Models of Control Systems of Angular Speed of Steam Turbines for Diagnostic Tests of Automatic and Mechatronic Devices

  Publication

  • G. Redlarski
  • J. Piechocki
  • M. A. Dąbkowski

  - Solid State Phenomena - Year 2013

  Accurate modeling of physical processes of many automatics and mechatronics systems is often necessity. In power system such a process is control of angular velocity of power objects during connection to operation in parallel. This process is extremely dynamic. For this reason response of control system depends from changes of many physical parameters (temperature, pressure and flow of the medium, etc.). Precision modeling influences...

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• Integrated algorithm for selecting the location and control of energy storage units to improve the voltage level in distribution grids

  Publication

  • A. Szultka
  • S. Szultka
  • S. Czapp
  • Z. Lubośny
  • R. Małkowski

  - ENERGIES - Year 2020

  This paper refers to the issue that mainly appears in distribution grids, where renewable energy sources (RES) are widely installed. In such grids, one of the main problems is the coordination of energy production time with demand time, especially if photovoltaic energy sources are present. To face this problem, battery energy storage units (ESU) can be installed. In recent years, more and more attention has been paid to optimizing...

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• Comparative Study of Balancing SRT by Using Modified ASM2d in Control and Operation Strategy at Full-Scale WWTP

  Publication

  • J. Drewnowski
  • J. Mąkinia
  • A. Szaja
  • G. Łagód
  • Ł. Kopeć
  • J. A. Aguilar

  - Water - Year 2019

  Detailed knowledge on the composition of the influent going into the wastewater treatment system is essential for the development of a reliable computer model. In the context of WWTPs (wastewater treatment plants), the wastewater characteristics are not only important for activated sludge system modelling, but also have an impact on the appropriate control of single unit operations. The aim of this study was to evaluate the concepts...

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• Two-Level Multivariable Control System of Dissolved Oxygen Tracking and Aeration System for Activated Sludge Processes

  Publication

  • R. Piotrowski

  - WATER ENVIRONMENT RESEARCH - Year 2015

  The problem of tracking dissolved oxygen is one of the most complex and fundamental issues related to biological processes. The dissolved oxygen level in aerobic tanks has significant influence on behaviour and activity of microorganism inhabiting the plant. Aerated tanks are supplied with air from an aeration system (blowers, pipes, throttling valves, diffusers). It is a complex dynamic system governed by nonlinear hybrid dynamics....

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• Wieloobszarowa regulacja systemu turbogeneratora elektrowni jądrowej =Multiregional control of nuclear power plant turbogenerator system

  Publication

  • P. Sokólski
  • K. Kulkowski
  • A. Kobylarz
  • K. Duzinkiewicz
  • T. A. Rutkowski
  • M. Grochowski

  - Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej - Year 2015

  W artykule przedstawiono propozycję zaawansowanej struktury sterowania układem turbogeneratora w szerokim zakresie zmian zapotrzebowania na moc czynną. Dla potrzeb syntezy tej struktury wykorzystano nieliniowe, dynamiczne modele turbiny parowej i generatora synchronicznego współpracującego z systemem elektroenergetycznym. Zaproponowane algorytmy sterowania oparte są odpowiednio o wieloobszarowe regulatory rozmyte, z lokalnymi regulatorami...

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• PLC-based Implementation of Stochastic Optimization Method in the Form of Evolutionary Strategies for PID, LQR, and MPC Control

  Publication

  • K. Zielonacki
  • J. Tarnawski

  - INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS - Year 2024

  Programmable logic controllers (PLCs) are usually equipped with only basic direct control algorithms like proportional-integral-derivative (PID). Modules included in engineering software running on a personal computer (PC) are usually used to tune controllers. In this article, an alternative approach is considered, i.e. the development of a stochastic optimizer based on the (μ,λ) evolution strategy (ES) in a PLC. For this purpose,...

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• Sensorless Control of Induction Motor Based on Super-Twisting Sliding Mode Observer With Speed Convergence Improvement

  Publication

  • L. Wogi
  • M. Morawiec
  • T. Ayana

  - IEEE Access - Year 2024

  The super twisting sliding-mode observer (ST-SMO) has been proposed to achieve an effective method for alleviating low-order harmonics of measured quantities, issues related to DC drift, and suppression of chattering due to low-frequency sampling. The conventional ST-SMO, on the other hand, suffers from control delay in the convergence trajectory due to the system disturbance, resulting in decreased anti-disturbance capability...

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• The sensors-based artificial intelligence Train Control and Monitoring System (TCMS) for managing the railway transport fleet

  Publication

  • M. Kalinowski
  • P. Weichbroth

  - Pojazdy Szynowe - Year 2023

  Railways deliver a safe and sustainable form of transport and are typically pointed as one the safest form of transportation. Nevertheless, train accidents still happen, and when they happen, the consequences concern serious fatalities and injuries. Since every case is unique, the most frequent causes of train accidents are mechanical derailments, failures, as well as human errors and ignorance. In order to mitigate the risks posed...

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• The possibility of the application of a potentiometric sensor with all-solid-state electrodes for the quality control of different natural waters

  Publication

  • W. Szpakowski
  • E. Brodnicka
  • M. Szpakowska

  - Desalination and Water Treatment - Year 2018

  The quality of various natural waters was examined by a new potentiometric sensor with six all solid state electrodes containing an appropriate lipophilic compound in a polymer membrane. Physicochemical parameters such as conductivity and acidity of tested waters were also tested. All waters were neutral or slightly alkaline and contained different ions (e.g., Cl–) due to the place of their sampling (a coastal zone and a moraine...

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• Soft Real-Time Communication with WebSocket and WebRTC Protocols Performance Analysis for Web-based Control Loops

  Publication

  • T. Karla
  • J. Tarnawski

  - Year 2019

  The web browser has become an access window for content and services. The browser is available on almost any device connected to the network, regardless of its intended use: desktop, mobile device, computing server, e-book reader etc. Browsers are used by people to read news, contact the world, to check a bank account, register a visit at the doctor, watching video content, electronic purchases, using web versions of the office...

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• Lack of control over work and organizational citizenship behavior: overwork climate as a suppressor variable

  Open Research Data

  open access

  • P. Jurek
  • A. Piotrowski
  • M. Olech

  This study investigates a suppressor effect in the relationship between lack of control over work and organizational citizenship behavior (OCB). Suppressor effects operate when the addition of a predictor (in our study it is an overwork climate) increases the predictive power of another variable (lack of control over work) in predicting an outcome variable...

• Central European Journal of Communication

  Journals

  ISSN: 1899-5101

• CENTRAL EUROPEAN JOURNAL OF CHEMISTRY

  Journals

  ISSN: 1895-1066

• Central European Journal of Medicine

  Journals

  ISSN: 1895-1058

• Central European Journal of Mathematics

  Journals

  ISSN: 1895-1074

• CENTRAL EUROPEAN JOURNAL OF PHYSICS

  Journals

  ISSN: 1895-1082

• JOURNAL OF CENTRAL EUROPEAN AGRICULTURE

  Journals

  ISSN: 1332-9049

• Central European Journal of Biology

  Journals

  ISSN: 1895-104X

• Central European Economic Journal

  Journals

  ISSN: 0137-3056 , eISSN: 2543-6821

• Central European Journal of Immunology

  Journals

  ISSN: 1426-3912 , eISSN: 1644-4124

• CENTRAL EUROPEAN JOURNAL OF ENGINEERING

  Journals

  ISSN: 1896-1541

• Journal of Central South University

  Journals

  ISSN: 2095-2899 , eISSN: 1993-0666

• Central European Management Journal

  Journals

  ISSN: 2658-0845 , eISSN: 2658-2430

• Central European Journal of Geosciences

  Journals

  ISSN: 2081-9900

• Central European Journal of Urology

  Journals

  ISSN: 2080-4806 , eISSN: 2080-4873

• Central European Forestry Journal

  Journals

  ISSN: 2454-034X , eISSN: 2454-0358

• International Journal of Central Banking

  Journals

  ISSN: 1815-4654 , eISSN: 1815-7556

• Ethics and Bioethics (in Central Europe)

  Journals

  ISSN: 1338-5615

• Youth in Central Eastern Europe

  Journals

  ISSN: 2409-952X

• Central European Journal of Management

  Journals

  ISSN: 2336-2693 , eISSN: 2336-4890

• Central European Business Review

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  ISSN: 1805-4854 , eISSN: 1805-4862

• Central European Journal of Paediatrics

  Journals

  ISSN: 2490-3639 , eISSN: 2490-3671

• Informatics, Control, Measurement in Economy and Environmental Protection

  Journals

  ISSN: 2083-0157 , eISSN: 2391-6761

• Mirosław Wołoszyn dr hab. inż.

  People

  Faculty of Electrical and Control Engineering, Katedra Elektrotechniki i Inżynierii Wysokich Napięć

  Mirosław Wołoszyn born in 1963 in Gdynia. He received the M.Sc. degree in 1987, the Ph.D. degree in 1997, and the D.Sc. (‘habilitation’) degree in 2013, all from the Gdańsk University of Technology. Since 1987 he has been with the above university, where he is currently Associate Professor of Electrical Engineering. His research interests include localization and identification of ferromagnetic objects by means of the magnetometric...

• IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS

  Journals

  ISSN: 1350-2379

• Challenges associated with development of AUV - unmanned autonomous underwater vehicles to be operated using the AI-based control systems

  Publication

  • M. K. Gerigk
  • M. Gerigk

  - Per mare ad astra - Year 2021

  The last decade has been devoted towards further development of the UUV unmanned underwater vehicles which may be of two types. There are the USV unmanned surface vehicles and UUV unmanned underwater vehicles. There is a growing interest to work out and implement the fully advanced AUV autonomous underwater vehicles. The main drivers towards development of such the vehicles are the technologies of autonomous systems, sensors and...

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• Modelling of Ship’s Heeling and Rolling for the Purpose of Gantry Control Improvement in the Course of Cargo Handling Operations in Sea Ports

  Publication

  • P. Krata
  • J. Szpytko
  • A. Weintrit

  - Solid State Phenomena - Year 2013

  The paper presents two proposals of models of interaction between a ship and cargo being loaded or discharged by a gantry in port, in terms of heeling and rolling of the vessel. The main purpose of such modelling is the need for improvement of gantry control with regard to faster operations thanks to more accurate estimation of level and moment of cargo release from a gantry hook or spreader. The study may be the contribution to...

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• A dual-control strategy based on electrode material and electrolyte optimization to construct an asymmetric supercapacitor with high energy density

  Publication

  • X. Chu
  • F. Meng
  • W. Zhang
  • H. Yang
  • X. Zou
  • S. Molin
  • P. Jasiński
  • X. Sun
  • W. Zheng

  - NANOTECHNOLOGY - Year 2022

  Metal-organic frames (MOFs) are regarded as excellent candidates for supercapacitors that have attracted much attention because of their diversity, adjustability and porosity. However, both poor structural stability in aqueous alkaline electrolytes and the low electrical conductivity of MOF materials constrain their practical implementation in supercapacitors. In this study, bimetallic CoNi-MOF were synthesized to enhance the electrical...

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