Wyniki wyszukiwania dla: PWM POWER CONVERTORS

• Size and mass minimization of capacitor bank in a power converter DC line of DC drive with closed loop control system with PWM and current limitation

  Publikacja

  • P. Borisov
  • N. Poliakov
  • R. Strzelecki

  - Rok 2016

  Paper deals with evaluation equations for power filter of AC-DC power converter which allows to provide size and mass minimization of capacitor bank in DC drive closed loop systems with PWM and current limitation. Reliability of provided equations is proved by simulation in MATLAB/Simulink

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• Ryszard Strzelecki prof. dr hab. inż.

  Osoby

  Katedra Energoelektroniki i Maszyn Elektrycznych

• 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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• Hybridized PWM Strategy for Three- and Multiphase Three-Level NPC Inverters

  Publikacja

  • A. Lewicki
  • D. Kondratenko
  • C. Odeh

  - IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS - Rok 2024

  A simple hybridized pulsewidth modulation (PWM) algorithm for three- and multiphase three-level neutral point clamped (NPC) inverters is proposed. The proposed solution is based on classical space vector PWM (SVPWM) algorithms for two-level inverters but can also be based on sinusoidal PWM with min–max injection. An additional level of output voltage is obtained by modifying the resulting switching patterns taking into account...

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• Selective Harmonic Elimination PWM For a Cascaded Multi-level Inverter

  Publikacja

  • A. L. Kouzou
  • A. Krama
  • S. S. Refaat
  • H. Abu-Rub

  - Rok 2020

  This paper deals with the selective harmonic elimination pulse width modulation (SHE-PWM) technique. This technique is used for the elimination of selected dominant low order harmonics in the multi-level inverter output voltage. The presence of these harmonics is the essential drawback of such kind of inverters; especially when it is used for the control of different AC drivers. The SHE-PWM is based...

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• Destructive impact of PWM inverters on traction AC motors

  Publikacja

  • J. Łuszcz
  • P. Dworakowski

  - ELECTROMOTION - Rok 2010

  The electric traction drives with an AC motor fed by a frequency converter are used more and more often nowadays. The most significant side effects, of a converter's output voltage forming PWM method for AC motor windings, are steep voltage changes, which can initiate several destructive phenomena. The paper presents the adverse influence of a converter common mode voltage on the motor windings's increased voltage exposure and...

• Zbigniew Lubośny prof. dr hab. inż.

  Osoby

  Katedra Elektroenergetyki

• JOURNAL OF POWER SOURCES

  Czasopisma

  ISSN: 0378-7753 , eISSN: 1873-2755

• Application of Barycentric Coordinates in Space Vector PWM Computations

  Publikacja

  • P. Szczepankowski
  • J. Nieznański

  - IEEE Access - Rok 2019

  This paper proposes the use of barycentric coordinates in the development and implementationof space-vector pulse-width modulation (SVPWM) methods, especially for inverters with deformed space-vector diagrams. The proposed approach is capable of explicit calculation of vector duty cycles, independentof whether they assume ideal positions or are displaced due to the DC-link voltage imbalance. The use ofbarycentric coordinates also...

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• Common-Mode Voltage and Bearing Currents in PWM Inverters: Causes, Effects and Prevention

  Publikacja

  • J. Guziński

  - Rok 2014

  In modern induction motor drives an increase of transistors' switching frequency and a decrease of switching times are the sources of some serious problems. The high dv/dt and the common mode voltage generated by the inverter PWM control results in the appearances of bearing currents, shaft voltages, motor terminal overvoltages, the decrease of motor efficiency, and electromagnetic interference. The aspects of common mode (CM)...

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