Search results for: power%20systems

• JOURNAL OF POWER SOURCES

  Journals

  ISSN: 0378-7753 , eISSN: 1873-2755

• POWDER TECHNOLOGY

  Journals

  ISSN: 0032-5910 , eISSN: 1873-328X

• Solutions of Power Electronics Converter for the Shore - to - Ship Power Systems

  Publication

  • R. Strzelecki

  - Automatyka Elektryka Zakłócenia - Year 2014

  W artykule poruszono tematykę zasilania statków zacumowanych w porcie z lądowej sieci elektroenergetycznej poprzez wykorzystanie nowoczesnych konstrukcji przekształtników energoelektronicznych. Zaproponowano budowę sieci dystrybucyjnej prądu stałego, przewoźnej platformy zasilającej oraz zastosowanie zasobników energii

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• Combined Heat & Power Generating Systems

  Publication

  • J. Marecki

  - Year 1988

  Steam cycles in combined heat and power plants. Efficiency of combined heat and power systems. Characteristics of steam-turbine CHP plants. Choice of equipment in CHP generating systems. Economic effects of combined heat and power production. Costs and energy produced CHP generating systems. Future development trends in CHP generating systems.

• Modular power converter topologies for energy storage and electric power distribution systems

  Publication

  • M. Parchomiuk
  • R. Strzelecki
  • K. Zymmer
  • A. Domino

  - Year 2017

  This paper describes selected issues concerning realization of energy storage system (ESS) designed to operate in power distribution system. In order to achieve scalability of the system a modular approach is proposed. In addition to this different configuration of the system are analyzed, where depending on requirements and application a scalability in power, in energy capacity of energy storage resource and both in power and...

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• ELECTRIC POWER SYSTEMS RESEARCH

  Journals

  ISSN: 0378-7796 , eISSN: 1873-2046

• WSEAS Transactions on Power Systems

  Journals

  ISSN: 1790-5060 , eISSN: 2224-350X

• Solutions of inverter systems in Shore-to-Ship Power supply systems

  Publication

  • R. Strzelecki
  • P. Mysiak
  • T. Sak

  - Year 2015

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• CYBERNETICS AND SYSTEMS

  Journals

  ISSN: 0196-9722 , eISSN: 1087-6553

• POWER

  Journals

  ISSN: 0032-5929

• Fuel systems of high power stationary engine

  Publication

  • Z. Kneba

  - Combustion Engines - Year 2023

  The use of alternative fuels and, in the future, synthetic fuels has forced changes in the design of fuel supply systems in internal combustion engines. When operating a stationary engine at constant load, the possibility of using lean fuel mixtures appears. The selection of a precise operating mixture ignition system requires changes in traditional fuel systems. The article presents the current designs of fuel supply systems and...

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• Fault detection in measuring systems of power plants

  Publication

  • J. Głuch

  - Polish Maritime Research - Year 2008

  This paper describes possibility of forming diagnostic relations based on application of the artifical neural networks (ANNs), intended for the identifying of degradation of measuring instruments used in developed power systems. As an example a steam turbine high-power plant was used. And, simulative calculations were applied to forming diagnostic neural relations. Both degradation of the measuring instruments and simultaneously...

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• Delivery of Ancillary Services in Distribution Power Systems

  Publication

  • P. Bućko
  • M. Jaskólski
  • Z. Lubośny
  • J. Klucznik
  • K. Dobrzyński

  - Year 2018

  One of the technical and organizational challenges the power system faces in deregulated market conditions is to organize an ancillary services market. The growing share of distributed generation of variable (intermittent) energy sources and a change in the market position of consumers, causes the demand for distributed delivery of ancillary services. For this purpose, it is sought to use the ability of the regulatory measures:...

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• Start-up of a power unit of a thermal power plant auxiliary systems with supply from a hydropower plant

  Publication

  • J. Klucznik
  • Z. Lubośny
  • K. Dobrzyński

  - Acta Energetica - Year 2013

  This article discusses the issues related to a power unit of a thermal power plant start-up with the use of a hydropower plant. Hydropower plant can supply and will enable start-up of auxiliary equipment in a power unit of a thermal power plant. Due to high capacity of auxiliary drives, start-up of auxiliaries in a thermal power plant after blackout (and boiler shutdown) is not possible from emergency energy sources in the power...

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• International Journal of Power and Energy Systems

  Journals

  ISSN: 1078-3466 , eISSN: 1710-2243

• CSEE Journal of Power and Energy Systems

  Journals

  ISSN: 2096-0042

• Protection and Control of Modern Power Systems

  Journals

  ISSN: 2367-2617

• IEEE TRANSACTIONS ON POWER ELECTRONICS

  Journals

  ISSN: 0885-8993 , eISSN: 1941-0107

• Autoencoder application for anomaly detection in power consumption of lighting systems

  Publication

  • T. Śmiałkowski
  • A. Czyżewski

  - IEEE Access - Year 2023

  Detecting energy consumption anomalies is a popular topic of industrial research, but there is a noticeable lack of research reported in the literature on energy consumption anomalies for road lighting systems. However, there is a need for such research because the lighting system, a key element of the Smart City concept, creates new monitoring opportunities and challenges. This paper examines algorithms based on the deep learning...

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• The issues of quantum in empirical research on machines and other power systems

  Publication

  • J. Girtler

  - Journal of Polish CIMEEAC - Year 2012

  W pracy uzasadniono, że w badaniach naukowych systemów empirycznych, zwłaszcza maszyn jak również i innych urządzeń energetycznych, należy uwzględnić istniejącą w ich eksploatacji przypadkowość i nieprzewidywalność zdarzeń. Nawiązano do osiągnięć mechaniki kwantowej wskazując na wynikający z nich postulat, że wielkości nazywane komplementarnymi, mają istotną własność, która polega na tym, że niemożliwy jest jednoczesny i zarazem...

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• Electric Power Quality in Isolated Systems - Requirements and Examples of Analysis.

  Publication

  • D. Czarkowski
  • J. Mindykowski
  • M. Olesz
  • E. Szmit
  • M. Szweda

  - Year 2007

  W arytukule przedstawiono wymagania normalizacyjne jakoci energii dla okretowych systemów zasilajacych pracujšcych w układzie z izolowanym punktem zerowym.Wymagania systemowe: Windows 95 lub nowsze; napęd CD-ROM. - Tytuł z etykiety na dysku.

• 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...

• THE INFLUENCE OF PHASE SHIFTERS ON THE VOLTAGE STABILITY OF CONNECTED POWER SYSTEMS

  Publication

  • R. Zajczyk
  • P. Szczeciński

  - Year 2018

  The paper presents the results of simulation tests of connected power systems in which phase shifters were installed on cross-border links. The analysis was carried out in terms of assessing the impact of shifters on node voltage stability. Individual systems were characterized by different balance of active power: deficit or excess. The evaluation of voltage stability was based on the dU/dQ and dU/dP criteria.

• An application of multi-agent system for ship’s power systems design

  Publication

  • R. Arendt
  • P. Spychalski

  - Year 2016

  Design process of transport ship power system consists of structure (topology) and component elements selection. Compliance with the requirements for static components does not guarantee optimal dynamic characteristics of entire power system. Design steps are difficult to formalize and as a consequence to this reason expert and multi-agent systems are used for solving selected design issues. In the paper distributed multi-agent...

• Voltage Source Power Line Conditioner for Applications in Local Supply Systems

  Publication

  • R. Strzelecki
  • W. Matelski
  • R. Małkowski
  • V. Tomasov
  • L. Wolski
  • A. Krahel

  - Year 2019

  The paper presents the basic principles of operation of voltage source power line conditioners (VSPLC) as well as their energy and filtration properties. A 4-level cascade based Voltage Source Converter (VSC) is used as a voltage source. The advantages of this topology is relatively simple construction and simple way of balancing DC link voltages. Results of the theoretical and experimental investigations confirm good energetic...

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• AC-DC-DC Converter for Small Power Energy Storage Systems

  Publication

  • S. Piasecki
  • S. Bachman
  • J. Zaleski
  • M. Jasinski
  • M. Turzyński

  - ENERGIES - Year 2023

  The energy transformation driven by the development of renewable energy sources has become a reality for all power grid users. Prosumer energy, primarily utilizing photovoltaic installations, is one of the fastest-growing market segments. The advancement of technology, a decrease in electrochemical energy storage prices, and changes in the legal framework governing energy billing for grid-fed power have led to a growing interest...

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• Influence of Shunt Compensation with SVC Devices on Resonance Risk in Power Systems

  Publication

  • R. Kowalak
  • R. Małkowski
  • S. Czapp
  • J. Klucznik
  • Z. Lubośny
  • K. Dobrzyński

  - Year 2015

  Many analyses are required to locate a new reactive power source in a power system. The choice of a location is a very complex matter which requires various aspects to be considered. Selecting a location also entails the necessity to assess it from the point of view of the selected compensator’s structure as well as the system’s performance in various states with the new device on. The paper presents the issues of assessing compensator...

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• SMART GRID TECHNOLOGIES IN ELECTRIC POWER SUPPLY SYSTEMS OF PUBLIC TRANSPORT

  Publication

  • M. Bartłomiejczyk

  - Year 2015

  Nowadays the issue of electric energy saving in public transport is becoming a key area of interest which is connected both with a growth in environmental awareness of the society and an increase in the prices of fuel and electricity. It can be achieved by reducing of the transmission losses in supply system or by the improving of the usage of the regenerative breaking. The article presents an analysis of applying these two options...

• Polyarmonic model of synchronous generator for analysis of autonomous power generation systems

  Publication

  • F. Kutt
  • M. Michna
  • M. Ronkowski
  • P. Chrzan

  - Maszyny Elektryczne : zeszyty problemowe - Year 2011

  Abstract: This paper presents the polyharmonic modelling of synchronous generator (SG) in machine variables. The simple geometry and windings physical layout has been used for inductance calculations of a salient-pole SG. The main advantage of this model is the ease of describing an autonomous power generation system (APGS) in terms of its topology and thus providing effective analysis at the static and dynamic states, both for...

• Nonlinear Model of Synchronous Generator for Autonomous Electrical Power Systems Analysis

  Publication

  • M. Michna
  • F. Kutt
  • S. Racewicz
  • M. Ronkowski

  - Year 2014

  This paper presents the nonlinear lookup table model for synchronous generator (SG) analysis. The saturation effects of the SG magnetic circuit have been considered. The saturated characteristic of the SG magnetic circuit are based on the open circuit saturation curve for magnetizing inductances. The model has been implemented into the Synopsys/Saber software using the MAST modelling language. To implement the no-load voltage characteristic...

• Operational loads of power systems of bucket dredgers in main service states

  Publication

  • D. Bocheński

  - Journal of Polish CIMEEAC - Year 2007

  W artykule zaprezentowano wyniki badań eksploatacyjnych silników spalinowych układów energetycznych pogłębiarek wieloczerpakowych. Badania dotyczyły obciążeń silników głównych i pomocniczych w podstawowych stanach eksploatacji pogłębiarki wieloczerpakowej.

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• SELECTED COMBINED POWER SYSTEMS CONSISTED OF SELFIGNITION ENGINE AND STEAM TURBINE

  Publication

  • W. Olszewski
  • M. Dzida

  - Polish Maritime Research - Year 2018

  This paper presents optimization of selected combined diesel engine-steam turbine systems. Two systems: the system combined with waste heat one-pressure boiler only and its version containing additionally low-pressure boiler proper feeding degasifier and the system of two-pressure cycle, were taken into considerations. Their surplus values of power output and efficiency associated with utilization of waste heat contained in piston...

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• COMPARATIVE EVALUATION OF FERRITE SHIELDING DESIGNS IN INDUCTIVE POWER TRANSFER SYSTEMS

  Publication

  • B. Pakhaliuk
  • P. Derkacz

  - Year 2019

  Wireless power transfer technology is becoming widespread in last few years. In comparison to conventional solutions this technology can significantly increase maintainability and safety of charging systems. From the other side there are list of factors that limit efficiency of wireless systems. One of them is low coupling between coils caused by comparably high leakage inductance in comparison to regular transformer.

• Power electronic systems as a crucial part of Smart Grid infrastructure - a survey

  Publication

  • G. Benysek
  • M. P. Kaźmierkowski
  • J. Popczyk
  • R. Strzelecki

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Year 2012

  This article gives a tutorial overview of the most important issues related to the use of power electronic systems in power engineering, with respect to the urgent need for modernization of existing grids in the direction of intelligent networks. The main problems and conditions bound up with the construction of Smart Grids and the location, as well as functioning in them of the most important power electronic systems are presented...

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• SMART GRID TECHNOLOGIES IN ELECTRIC POWER SUPPLY SYSTEMS OF PUBLIC TRANSPORT

  Publication

  • M. Bartłomiejczyk

  - Technika Transportu Szynowego - Year 2015

  Nowadays the issue of electric energy saving in public transport is becoming a key area of interest, which is connected both with a growth in environmental awareness of the society and an increase in the prices of fuel and electricity. It can be achieved by reducing the transmission losses in a supply system or by the improving the usage of the regenerative breaking. The article presents an analysis of applying these two options...

• SMART GRID TECHNOLOGIES IN ELECTRIC POWER SUPPLY SYSTEMS OF PUBLIC TRANSPORT

  Publication

  • M. Bartłomiejczyk

  - Transport - Year 2018

  Nowadays the issue of electric energy saving in public transport is becoming a key area of interest which is connected both with a growth in environmental awareness of the society and an increase in the prices of fuel and electricity. It can be achieved by improving the usage of regenerative breaking. In 2016 the Przedsiębiorstwo Komunikacji Trolejbusowej (PKT, Trolleybus Transport Company) in Gdynia began practical implementation...

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• POWER ENGINEER

  Journals

  ISSN: 1479-8344

• Power and Education

  Journals

  ISSN: 1757-7438

• POWER ENGINEERING

  Journals

  ISSN: 0032-5961

• Reliability assessment of an OVH HV power line truss transmission tower subjected to seismic loading

  Publication

  • K. Winkelmann
  • P. Jakubowska
  • B. Sołtysik

  - Year 2017

  The study focuses on the reliability of a transmission tower OS24 ON150 + 10, an element of an OVH HV power line, under seismic loading. In order to describe the seismic force, the real-life recording of the horizontal component of the El Centro earthquake was adopted. The amplitude and the period of this excitation are assumed random, their variation is described by Weibull distribution. The possible space state of the phenomenon...

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• International Journal of Emerging Electric Power Systems

  Journals

  ISSN: 1553-779X

• Journal of Modern Power Systems and Clean Energy

  Journals

  ISSN: 2196-5625 , eISSN: 2196-5420

• International Journal of Power Electronics and Drive Systems

  Journals

  ISSN: 2088-8694

• IEEE Power and Energy Technology Systems Journal

  Journals

  ISSN: 2332-7707

• Defence in depth conception in nuclear power plants and requirements for instrumentation and control systems

  Publication

  • K. Kosmowski

  - Journal of Polish Safety and Reliability Association, Summer Safety and Reliability Seminars - Year 2014

  The aim of this article is to identify and discuss some issues of the safety systems’ design for nuclear power plants equipped with the light water reactors using a defence in depth (D-in-D) conception. Because the functional safety solutions play nowadays an important role for the risk control, the basic requirements for the instrumentation and control systems are specified with regard to relevant international standards. For...

• HIERARCHICAL CYCLES IN MODERN POWER SYSTEMS – EXERGY ANALYSIS UNDER PART LOADS

  Publication

  • T. Kowalczyk
  • P. Ziółkowski
  • S. Kornet

  - Transactions of the Institute of Fluid-Flow Machinery - Year 2015

  The aim of the paper is to investigate thermodynamic efficiency of advanced hierarchic power cyclesunder partial loads by using of exergy analyze. Advanced hierarchical power systems arecomposed of few energy conversion cycles, most common are steam and gas cycles in various configurations, but they may contain fuel cells, ORC, lithium bromide absorption chillers and others. Moreover hierarchical cycles can be powered by several...

• Nonlinear model of a synchronous generator for analysis of more electric aircraft power systems

  Publication

  • F. Kutt
  • M. Michna
  • P. Chrzan
  • M. Ronkowski

  - Maszyny Elektryczne : zeszyty problemowe - Year 2009

  A nonlinear model for studying a variable-speed synchronous generator (SG) in more electric aircraft (MEA) power system has been developed. The saturation effects of the SG magnetic circuit have been considered. The model has been implemented in the Synopys/Saber simulation environment. The modelling language MAST has been used to elaborate the SG model. The model exhibit a network with the same number of external terminals/ports...

• Selected Issues Associated with the Operational and Power Supply Reliability of Fire Alarm Systems

  Publication

  • T. Klimczak
  • J. Paś
  • S. Duer
  • A. Rosiński
  • P. Wetoszka
  • K. Białek
  • M. Mazur

  - ENERGIES - Year 2022

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• Evolution of the HVDC Link Connecting Offshore Wind Farms to Onshore Power Systems

  Publication

  • R. Ryndzionek
  • Ł. Sienkiewicz

  - ENERGIES - Year 2020

  This paper presents an overview of the DC link development and evolution dedicated to HVDC structure for connecting offshore wind power plants to onshore power systems. The growing demand for the green energy has forced investors in power industry to look for resources further out at sea. Hence, the development of power electronics and industrial engineering has enabled offshore wind farms to be situated further from the shore...

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• Automatic tuning of a resonant circuit in wireless power supply systems for biomedical sensors

  Publication

  • G. Blakiewicz
  • J. Jakusz
  • W. Jendernalik
  • S. Szczepański

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Year 2016

  In this paper, a tuning method of a resonant circuit suited for wireless powering of miniature endoscopic capsules is presented and discussed. The method allows for an automatic tuning of the resonant frequency and matching impedance of a full wave rectifier loading the resonant circuit. Thereby, the receiver tunes so as to obtain the highest power efficiency under given conditions of transmission. A prototype receiver for wireless...

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