CALCULATION OF PROCESSES IN THE LUO TOPOLOGY CONVERTER USING THE AVERAGING METHOD BASED ON LAGRANGE THEOREMS-Reference-Cited by-同舟云学术

CALCULATION OF PROCESSES IN THE LUO TOPOLOGY CONVERTER USING THE AVERAGING METHOD BASED ON LAGRANGE THEOREMS

Published:2023-12-04 Issue:66 Volume:2023 Page:100-110
ISSN:1727-9895
Container-title:Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini
language:
Short-container-title:Praci Inst. elektrodin. Nac. akad. nauk Ukr.

Author:

Rudenko Yu.V.^ORCID,

Abstract

The electromagnetic processes in elementary dc converter according to the Luo topology with inverting output in modes of continuous and discontinuous conduction were studied. Using the method of averaging in the state space based on Lagrange theorems, mathematical models of converter for mentioned modes of operation have been devel-oped. The use of developed models made it possible to obtain analytical expressions for calculating the average and pulsation values of currents and voltages in the reactive elements of the converter, as well as their ripple coefficients. Graphical dependences of the mentioned parameters were calculated in the entire commutation range of converter, taking into account the conduction modes. It is shown that, in comparison with traditional topology of buck-boost con-verter, the output filter in elementary Luo converter with inverting output significantly reduces the ripple coefficient of output voltage. It was determined that the amount of voltage ripple reduction is proportional to the product of the in-ductance and filter capacity values, as well as the square of the switching frequency and does not depend on the con-ductivity mode of the converter. Ref. 13, fig. 5, table. Key words: dc voltage converters, Luo converter, averaging method in state space, Lagrange theorems.

Publisher

National Academy of Sciences of Ukraine (Co. LTD Ukrinformnauka) (Publications)

Reference13 articles.

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