High-Power-Factor Rectifier Using the Modified SEPIC Converter Operating in Discontinuous Conduction Mode

Bianchin, Carlos Gabriel; Gules, Roger; Badin, Alceu André; Romaneli, Eduardo Félix Ribeiro

doi:10.1109/tpel.2014.2360172

Cited by 37 publications

(8 citation statements)

References 16 publications

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“…The performance of buck/ boost and buck boost converter topologies which performs MPPT tracking using DSP processor was studied by [51]. It combines discrete time control and proportional integral (PI) compensator.…”

Section: Buck/boost Convertermentioning

confidence: 99%

Performance Analyses of DC- DC Converter with Controller for PV Application

Padmavathi*¹,

Kalaivani²

2019

IJRTE

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Abstract: The utility of electric power plays a major role in economic development of a country. However, the demand for electrical energy goes on increasing every day. In order to meet out the demand for electricity, Renewable Energy Source (RES) has been identified as the alternate for electricity generation. Among the various RES, PV system has added consideration throughout the world due to its easy accessibility, boundless nature and of low maintenance cost. Since the voltage obtained from PV is not suitable for high power applications, a DC/DC step up converter is introduced. This converter should have reduced output voltage ripple which is an important factor that influences the overall performance of PV system. Hence, this work studied about the different topology of converter suitable for PV systems to have a better efficiency.

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Section: Buck/boost Convertermentioning

confidence: 99%

Performance Analyses of DC- DC Converter with Controller for PV Application

Padmavathi*¹,

Kalaivani²

2019

IJRTE

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“…The applications include renewable energies, supplying LED loads, electronic systems, motor drives and electrical vehicles, among others. In the case of the SEPIC converter, it has been the most used in applications like three phase rectifier [11], low power and high power factor correctors [10,15,16], interleaved with coupled inductors [4], PFC with higher output voltage [17] and DC-DC conversion with high voltage gain [18]. In the case of the Ćuk converter the most common applications are bridgeless PFCs [15,19,20] and motor drives [21].…”

Section: Introductionmentioning

confidence: 99%

Modelling of SEPIC, Ćuk and Zeta Converters in Discontinuous Conduction Mode and Performance Evaluation

Madrid

Murillo-Yarce

Restrepo

et al. 2021

Sensors

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High-order switched DC-DC converters, such as SEPIC, Ćuk and Zeta, are classic energy processing elements, which can be used in a wide variety of applications due to their capacity to step-up and/or step-down voltage characteristic. In this paper, a novel methodology for analyzing the previous converters operating in discontinuous conduction mode (DCM) is applied to obtain full-order dynamic models. The analysis is based on the fact that inductor currents have three differentiated operating sub-intervals characterized by a third one in which both currents become equal, which implies that the current flowing through the diode is zero (DCM). Under a small voltage ripple hypothesis, the currents of all three converters have similar current piecewise linear shapes that allow us to use a graphical method based on the triangular shape of the diode current to obtain the respective non-linear average models. The models’ linearization around their steady-state operating points yields full-order small-signal models that reproduce accurately the dynamic behavior of the corresponding switched model. The proposed methodology is applicable to the proposed converters and has also been extended to more complex topologies with magnetic coupling between inductors and/or an RC damping network in parallel with the intermediate capacitor. Several tests were carried out using simulation, hardware-in-the-loop, and using an experimental prototype. All the results validate the theoretical models.

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“…Although they offer attractive characteristics, one disadvantage of SEPIC rectifier is its voltage stress on semiconductors, which is the input voltage plus the output voltage. This disadvantage causes some limitation in the application as a step-up converter, mainly in output voltage above 400 V. Therefore, novel SEPIC rectifier topologies have been proposed in [14][15][16][17][18] in order to overcome this limitation (they supply higher levels of output voltage with reduced voltage stress on the semiconductors).…”

Section: Introductionmentioning

confidence: 99%

Single‐phase hybrid discontinuous conduction mode SEPIC rectifiers integrated with ladder‐type switched‐capacitor cells

Kremes

Costa²,

Font

et al. 2019

IET Power Electronics

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In this study, a set of new single-phase pulse-width modulation (PWM) Single-ended primary-inductor converter (SEPIC) rectifiers are proposed, which integrates conventional SEPIC rectifier, three-state switch (TSS) and switched-capacitor (SC) concepts. A conventional ladder-type SC cell is modified so that it can be integrated with the SEPIC rectifier operating in discontinuous conduction mode. The set of new single-phase PWM SEPIC rectifiers are able to provide: (i) lower-voltage stress on the semiconductors; (ii) higher-output voltage; and (iii) a split-capacitor output voltage. The structure employs a TSS and three different implementations are proposed. Two of them are bridgeless versions, which can provide higher efficiencies. Hence, the proposed structures can support using the SEPIC rectifiers as step-up in many applications and thus it can broaden its field of use. The topologies and their topological states, a theoretical steady-state analysis, a theoretical analysis of the ladder-type SC cell integrated with the SEPIC rectifier, a dynamic model for the control and a design example are discussed herein. Furthermore, a 500 W prototype with a 220 V input voltage, two 200 V split-output voltages, 400 V total output voltage and 50 kHz switching frequency was designed to corroborate the theoretical study.

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High-Power-Factor Rectifier Using the Modified SEPIC Converter Operating in Discontinuous Conduction Mode

Cited by 37 publications

References 16 publications

Performance Analyses of DC- DC Converter with Controller for PV Application

Performance Analyses of DC- DC Converter with Controller for PV Application

Modelling of SEPIC, Ćuk and Zeta Converters in Discontinuous Conduction Mode and Performance Evaluation

Single‐phase hybrid discontinuous conduction mode SEPIC rectifiers integrated with ladder‐type switched‐capacitor cells

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