Wyniki wyszukiwania dla: PWM MODULATION

• A New Approach to the PWM Modulation for the Multiphase Matrix Converters Supplying Loads with Open-End Winding.

  Publikacja

  • P. Szczepankowski
  • N. Strzelecka
  • E. Romero-Cadaval

  - ENERGIES - Rok 2021

  This article presents three variants of the Pulse Width Modulation (PWM) for the Double Square Multiphase type Conventional Matrix Converters (DSM-CMC) supplying loads with the open-end winding. The first variant of PWM offers the ability to obtain zero value of the common-mode voltage at the load's terminals and applies only six switches within the modulation period. The second proposal archives for less Total Harmonic Distortion...

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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...

• Algorytm PWM dla 9-fazowego silnika indukcjnego

  Publikacja

  • P. Stec

  - Elektronika : konstrukcje, technologie, zastosowania - Rok 2012

• 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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• Materiały i Technologie : roczniki naukowe Pomorskiego Oddziału PTM

  Czasopisma

  ISSN: 1731-223X

• 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 Consequences of PWM Inverter Feeding for Traction AC Motors

  Publikacja

  • J. Łuszcz
  • P. Dworakowski

  - Rok 2009

  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' increased voltage exposure and the...

• Advanced current regulated PWM inverter with simplified load model.

  Publikacja

  • H. Abu-Rub
  • J. Guziński
  • Z. Krzemiński

  - Rok 2004

  W artykule przedstawionio nowy regulator prądu stojana silnika asynchronicznego zasilanego z falownika napięcia. Regulator wykorzystuje obliczenia siły elektromotorycznej silnika. Rozważonio wpływ zmian parametrów silnika na działanie regulatora. Wykorzystano uproszczony model silnika bez uwzględnienienia rezystancji stojana. Zastosowano stałą częstotliwość próbkowania prądu. Układ zrealizowania w programie symulacyjnym oraz na...

• Single and Three -Phase PWM AC/AC Converters as Semiconductor Transformers

  Publikacja

  • R. Strzelecki
  • N. Strzelecka

  - Rok 2020

  AC voltage transformation circuits contain pure or reactance PWM AC/AC converters. These circuits can be treated as AC/AC semiconductor transformers. This paper reviews single-phase and three-phase topologies: both non-isolated and isolated, single as well as two quadrant structure. Additionally, this paper present selected examples of their applications.

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• Bearing current path and pulse rate in PWM-inverter-fed induction

  Publikacja

  • A. Kempski
  • R. Strzelecki
  • R. Smolenski
  • Z. Fedyczak

  - Rok 2001

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