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Wyszukujesz frazę "DC-DC power converter" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
DC–DC boost converter with high voltage gain and a low number of switches in multisection switched capacitor topology
Autorzy:
Stala, R.
Pirog, S.
Powiązania:
https://bibliotekanauki.pl/articles/141210.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
DC–DC converter
boost converter
switched-capacitor
high voltage pulsed power
Opis:
This paper presents a concept and the results of an investigation of a DC–DC boost converter with high voltage gain and a reduced number of switches. The novel concept assumes that the converter operates in a topology composed of series connection switched- capacitor-based multiplier (SCVM) sections. Furthermore, the structure of the sections has significant impact on parameters of the converter which is discussed in this paper. The paper demonstrates the basic benefit such a multisection SCVM idea in the converter, which is the significant reduction in the number of switches and diodes for high voltage gain in comparison to an SCVM converter. Aside from the number of switches and diodes, such parameters as efficiency and volume of passive components in the multisection converter are analyzed in this paper. In figures, the analysis is demonstrated using the example of 100 kW thyristor-based converters. All the characteristics of the converter are compared between various configurations of switching cells in the particular sections, thus the paper can be useful for a design approach for a high voltage gain multicell converter.
Źródło:
Archives of Electrical Engineering; 2018, 67, 3; 617--627
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristic frequencies in averaged description of step-down (BUCK) DC-DC power converter
Autorzy:
Janke, W.
Powiązania:
https://bibliotekanauki.pl/articles/140412.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
switch mode DC-DC converter
step-down converter
BUCK power converter
small-signal transmittances
sharacteristic frequencies
Opis:
In the description of small-signal transmittances of switch-mode power converters several characteristic frequencies are usually used, corresponding to poles and zeros of transmittances. The knowledge of these frequencies is important in the design of control circuits for converters and usually are assumed to be constant for a given power stage of a converter. The aim of the paper is to evaluate the influence of converter primary parameters and load conductance on characteristic frequencies. Analytical derivations and numerical calculations are performed for an ideal and non-ideal BUCK converter working in continuous or discontinuous conduction mode.
Źródło:
Archives of Electrical Engineering; 2016, 65, 4; 703-717
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A control strategy of hybrid solar-wind energy generation system
Autorzy:
Sharma, H.
Pal, N.
Kumar, P.
Yadav, A.
Powiązania:
https://bibliotekanauki.pl/articles/141311.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
distributed PV/wind power system
double-input DC-DC converter
multivariable controller
voltage regulation
Opis:
Synchronization in the energy generated by renewable energy sources is one of the significant issue associated with the converter used in the system module. The presented paper concentrates on the design aspect of a PV and wind power input to a DC-DC converter which can be practically useful in hybrid renewable energy power systems. In this regard, the proposed converter can be utilized to obtain a smooth regulated output voltage from the given input renewable energy power sources. The proposed converter can be efficiently work under critical conditions having very few ripple in current waveform of input or output. A major advantage with this type of converter is the simple circuit with respect to the conventional converters in some critical situations. At the end, the result based on the simulation exercise and various experiments, performance of the converter in different situations is presented so that the efficiency of the designed converter arrangement is accepted.
Źródło:
Archives of Electrical Engineering; 2017, 66, 2; 241-251
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of delta/polygon-connected transformer-based 36-pulse ac-dc converter for power quality improvement
Autorzy:
Abdollahi, R.
Powiązania:
https://bibliotekanauki.pl/articles/140490.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
jakość energii
prostownik 36-pulsowy
bezpośredni moment obrotowy silnika indukcyjnego sterowanego napędem
AC-DC converter
delta/polygon transformer
power quality
direct torque controlled induction motor drive (DTCIMD)
Opis:
Design of a delta/polygon-connected autotransformer based 36-pulse ac-dc converter is presented in this paper. The 36-pulse topology is obtained via two paralleled eighteen-pulse ac-dc converters each of them consisting of a nine-phase (nine-leg) diode bridge rectifier. For independent operation of paralleled diode-bridge rectifiers, two interphase transformers (IPT) is designed and implemented. A transformer is designed to supply the rectifier. The design procedure of magnetics is in a way such that makes it suitable for retrofit applications where a six-pulse diode bridge rectifier is being utilized. The proposed structure has been implemented and simulated using Matlab/Simulink software under different load conditions. Simulation results confirmed the significant improvement of the power quality indices (consistent with the IEEE-519 standard requirements) at the point of common coupling. Furthermore, near unity power factor is obtained for a wide range of DTCIMD operation. A comparison is made between 6-pulse and proposed converters from view point of power quality indices. Results show that input current total harmonic distortion (THD) is less than 4% for the proposed topology at variable loads.
Źródło:
Archives of Electrical Engineering; 2012, 61, 2; 277-292
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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