Wyniki wyszukiwania dla: dc-link voltages

• Space-vector pulsewidth modulation for a seven-level cascaded H-bridge inverter with the control of DC-link voltages

  Publikacja

  • A. Lewicki
  • M. Morawiec

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2017

  The control strategy of DC-link voltages for a seven-level Cascaded H-Bridge inverter is proposed in this paper. The DC-link voltage balancing is accomplished by appropriate selection of H-Bridges and control of their duty cycles in Space-Vector Modulation (SVM) algorithm. The proposed SVM method allows to maintain the same voltage level on all inverter capacitors. Regardless of the balancing function, the...

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• Output voltage, current and DC-link voltages under SVPWM, experimental results

  Dane Badawcze

  open access

  • D. Kondratenko
  • A. Lewicki

  The dataset contains the experimental results of the project: A universal algorithm of space vector pulse width modulation for three-level three and multi-phase NPC inverters with DC-link voltage balancing. The output line-to-line voltage, output current and DC-link voltages were included. The comparison studies between proposed Space Vector Pulse-Width...

• Output voltage, current and DC-link voltages under SPWM, experimental results

  Dane Badawcze

  open access

  • D. Kondratenko
  • A. Lewicki

  The dataset contains the experimental results of the project: A universal algorithm of space vector pulse width modulation for three-level three and multi-phase NPC inverters with DC-link voltage balancing. The output line-to-line voltage, output current and DC-link voltages were included. The Carrier-Based Pulse-Width Modulation (CBPWM) technique was...

• 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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• DC-link voltage balancing in cascaded H-Bridge converters

  Publikacja

  • A. Lewicki

  - Archives of Electrical Engineering - Rok 2014

  In the paper a DC-link voltage balancing strategy for multilevel Cascaded H-Bridge (CHB) converter is proposed. Presented solution bases on optimal choice of active vector durations in Space-Vector Pulse Width Modulation (SV-PWM). It makes it possible to DC-link voltages control and to properly generate the output voltage vector in the case of DC-link voltage unbalance. Results of simulation and experimental researches...

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• The Evaluation of Expanded Uncertainty of DC Voltages in the Presence of Electromagnetic Interferences using the LabVIEW Environment

  Publikacja

  • P. Otomański
  • E. Pawłowski
  • A. Szlachta

  - Measurement Science Review - Rok 2021

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• Quasi-resonant dc-link inverter with a reduced number of active elements

  Publikacja

  • S. Mandrek
  • P. Chrzan

  - IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS - Rok 2007

  W artykule przedstawiono nową topologię równoległego quasi-rezonansowego obwodu pośredniczącego falownika napięcia. Opisano sekwencje miękkiej komutacji falownika w dwukierunkowym trybie pracy falowniczej i prostowniczej. Analiza układu została zweryfikowana badaniami symulacyjnymi i eksperymentalnymi. Przedstawiona topologia odznacza się prostą strukturą oraz małą ilością elementów aktywnych. Dzięki zastosowaniu krzepkiej strategii...

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• A predictive estimation based control strategy for a quasi-resonant dc-link inverter

  Publikacja

  • M. Turzyński
  • P. Banach
  • P. Murawski
  • R. Pepliński
  • P. Chrzan

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2014

  In this paper the predictive estimation based control strategy for a quasi-resonant dc link inverter (PQRDCLI) is developed. Instead of direct measurement of dc link input inverter current – its estimation with one step prediction is applied. The PQRDCLI fed induction motor, controlled with a predictive current estimation stabilized inverter output voltage slopes independently of load. Moreover, reduction of overvoltage spikes...

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• Resonant DC link inverters for AC motor drive systems – critical evaluation

  Publikacja

  • M. Turzyński
  • P. Chrzan

  - Bulletin of the Polish Academy of Sciences-Technical Sciences - Rok 2019

  In this survey paper, resonant and quasiresonant DC link inverters are reexamined for AC motor drive applications. Critical evaluation of representative topologies is based on simulation and waveform analysis to characterize current/voltage stress of components, control timing constraints and feasibility. A special concern over inverter common-mode voltage and voltage gradient du/dt limitation capacity is discussed for motor bearing...

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• Quasi-resonant DC-link voltage inverter with enhanced zero-voltage switching control

  Publikacja

  • M. Turzyński
  • P. Chrzan
  • M. Kolincio
  • S. Burkiewicz

  - Rok 2017

  A new topology modification of the parallel quasi-resonant circuit for a dc-link voltage inverter enables regulation of the zero voltage dc-link subperiods and the dc-link voltage gradient settings. The proposed circuit is based on four MOSFET switches with free-wheeling diodes for controlled quasi-resonant recharging between L-C tank in order to assure inverter zero voltage switching (ZVS) conditions. Design optimization of the...

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