Wyniki wyszukiwania dla: power electronic converters

• Conducted emi identification in power electronic converters : modeling of EMI generation and propagation using circuit simulation and wiener filtering methods.

  Publikacja

  • P. Musznicki

  - Rok 2009

  This work presents the circuit simulations and the conventional signal processing technique (Wiener filtering) in order to reconstruct conducted ElectroMagnetic Interferences (EMI), generated and propagated in power electronics converters. In the simulation study, the most accurate presently available models of components of circuit have been used and improved. The proposed Wiener filtering method allows to identifying the transfer...

• High Frequency Harmonics Emission of Modern Power Electronic AC-DC Converters

  Publikacja

  • J. Łuszcz

  - Rok 2013

  Modern AC/DC converters with bidirectional power flow employing PWM boost topology generate harmonic distortions of input current in relatively high frequency range tightly related to modulation carrier frequency. These frequencies and its multiples in typical applications are usually located in frequency range from single up to several of kHz. Increased harmonic emission in this frequency range can easily and harmfully influence...

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• Better understanding EMI generation of power converters

  Publikacja

  • P. Musznicki
  • J. Schanen
  • P. Granjon
  • P. Chrzan

  - Rok 2005

  Przedstawiono metodę przewidywania poziomu zaburzeń w układzie podwyższającym napięcie w oparciu o metodę filtracji Wienera. Pozwoliło to na określenie odpowiedzi impulsowej pomiędzy przyczyną zaburzenia (zmianą napięcia na elementach półprzewdonikowych) a zaburzeniem. Metodę zwerifikowano przy użyciu danych z symulacji oraz pomiarów w rzeczywistym obiekcie

• Modelling and analysis of medium frequency transformers for power converters

  Publikacja

  • P. Dworakowski

  - Rok 2020

  The evolutions in power systems and electric vehicles, related to the economic opportunities and the environmental issues, bring the need of high power galvanically isolated DC-DC converter. The medium frequency transformer (MFT) is one of its key components, enabled by the increasing switching frequency of modern power semiconductors like silicon carbide transistors or diodes. The increased operating frequency offers small...

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• Transient modeling in common DC link of power converters

  Publikacja

  • A. Anuchin
  • G. Demidova
  • R. Strzelecki
  • M. Yakovenko

  - Science, Technology and Arts Research Journal - Rok 2020

  Предмет исследования. Представлена математическая модель силовых преобразователей электропривода, питающихся от общего звена постоянного тока, на примере тяговых электроприводов карьерного самосвала БЕЛАЗ-90 мощностью 280 кВт. Модель выполнена в пакете MATLAB/Simulink. Новизна предложенной модели заключается в применении новой топологии силовой схемы для исследования работы двух инверторов, под- ключенных к одному звену постоянного...

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• Modelling of power electronic compensators for the analysis of power system operation

  Publikacja

  • R. Kowalak

  - Acta Energetica - Rok 2013

  The article presents selected methods of modelling power electronic compensators in order to analyze their operation in the power systems. Advantages and disadvantages of models have been shown with an indication of their usefulness for modelling specific phenomena.

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• Power Electronic Transformer For Smart Grid Application

  Publikacja

  • M. Morawiec
  • A. Lewicki
  • Z. Krzemiński

  - Rok 2015

  In this paper the control system of Power Electronic Transformer (PET) for the Smart Grid application is proposed. The structure of PET is based on two Cascaded H-bridge (CHB) converters. The electrical energy is transferred between converters using Dual-Active-Bridges (DAB) and high-frequency transformers. This type of coupling has been used to connect the DC-links of all H-bridges. The proposed control system for PET makes it...

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• CM Voltage Compensators for Power Electronic Interfaces

  Publikacja

  • R. Smoleński
  • J. Bojarski
  • P. Leżyński
  • A. Kempski
  • J. Łuszcz

  - IEEE Electromagnetic Compatibility Magazine - Rok 2015

  The experimental results presented in the paper have shown that the application of the PEIs might cause EMC related problems, especially in the case of the application of a group of connected converters. The most convenient way to reduce EMI currents and prevent aggregation of EMI currents introduced by a group of converters is through passive compensation of voltage interference sources inside of the single converters. In the...

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• System of protection against electric shock for circuits with power electronics converters

  Publikacja

  • S. Czapp
  • D. Świsulski

  - Przegląd Elektrotechniczny - Rok 2015

  Modern low voltage circuits are very often equipped with power electronics converters, therefore in these circuits non-sinusoidal earth currents (touch currents) may occur. For non-sinusoidal currents safety criteria should be modified. This paper presents these modified criteria and a computer system of protection against electric shock which can be implemented in circuits with power electronics converters. The system is based...

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• Energy storage device based on flywheel, power converters and Simulink real-time

  Publikacja

  • F. Blaabjerg
  • B. Kedra
  • R. Małkowski

  - Rok 2017

  This electronic document is a “live” template and already defines the components of your paper [title, text, heads, etc.] in its style sheet. Paper presents information on Energy Storage Device based on Flywheel and bi-directional IGBT Power Converters – designed for LINTE^2 laboratory owned by Gdansk University of Technology in Poland. Paper is divided into four sections. First section of the paper provides introductory information...

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