Temat: voltage power control - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Investigation of a High-efficiency and High-frequency 10-kW/800-V Three-phase PWM Converter with Direct Power Factor Control
Autorzy:: Barlik, Roman
Grzejszczak, Piotr
Leszczyński, Bernard
Szymczak, Marek
Powiązania:: https://bibliotekanauki.pl/articles/226672.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: three-phase PWM rectifier
reactive power compensator
silicon carbide MOSFET
bidirectional power flow
direct power control (DPC)
DC voltage regulation
power factor correction (PFC)
LCL filter
Opis:: The paper presents a concept of a control system for a high-frequency three-phase PWM grid-tied converter (3x400 V / 50 Hz) that performs functions of a 10-kW DC power supply with voltage range of 600÷800 V and of a reactive power compensator. Simulation tests (in PLECS) allowed proper selection of semiconductor switches between fast IGBTs and silicon carbide MOSFETs. As the main criterion minimum amount of power losses in semiconductor devices was adopted. Switching frequency of at least 40 kHz was used with the aim of minimizing size of passive filters (chokes, capacitors) both on the AC side and on the DC side. Simulation results have been confirmed in experimental studies of the PWM converter, the power factor of which (inductive and capacitive) could be regulated in range from 0.7 to 1.0 with THDi of line currents below 5% and energy efficiency of approximately 98.5%. The control system was implemented in Texas Instruments TMS320F28377S microcontroller.
Źródło:: International Journal of Electronics and Telecommunications; 2019, 65, 4; 619-624
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Design of new robust backstepping control for three-phase grid-connected fourleg source voltage PWM converters
Autorzy:: Chebabhi, Ali
Kessal, Abdelhalim
Powiązania:: https://bibliotekanauki.pl/articles/2203363.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: three-phase grid-connected four-leg voltage source rectifiers
GC-FLVSR
Robust Backstepping Control
RBSC
parameters uncertainties
harmonic
Zero Sequence Currents
ZSCs
Unit Power Factor
UPF
Opis:: Due to high performance demands of grid-connected pulse-width modulation (PWM) converters in power applications, backstepping control (BSC) has drawn wide research interest for its advantages, including high robustness against parametric variations and external disturbances. In order to guarantee these advantages while providing high static and dynamic responses, in this work, a robust BSC (RBSC) with consideration of grid-connected PWM converter parameter uncertainties is proposed for three-phase grid-connected four-leg voltage source rectifiers (GC-FLVSR). The proposed RBSC for GC-FLVSR is composed of four independent controllers based on the Lyabonov theory that control DC bus voltage and input currents simultaneously. As a result, unit power factor, stable DC-bus voltage, sinusoidal four-leg rectifier input currents with lower harmonics and zero-sequence (ZS), and natural currents can be accurately achieved. Furthermore, the stability and robustness against load, DC capacitor, and filter inductance variations can be tested. The effectiveness and superiority of the proposed RBSC compared to the PI control (PIC) have been validated by processor-in-the-loop (PIL) co-simulation using the STM32F407 discovery-development-board as an experimental study.
Źródło:: Metrology and Measurement Systems; 2023, 30, 1; 65--82
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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