Analysis and implementation of the Buck-Boost Modified Series Forward converter applied to photovoltaic systems

Moral, D. López del; Barrado, A.; Sanz, M.; Lázaro, A.; Zumel, P.

doi:10.1016/j.solener.2018.10.053

Cited by 10 publications

(5 citation statements)

References 32 publications

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“…PV systems are used today in many applications, such as water pumping, battery charging, home power supply, etc. [3][4][5]. Figure 1 shows a block diagram of a typical sustainable energy system, which is composed of renewable energy sources, a high step-up DC-DC converter, a DC grid, and an inverter for AC applications.…”

Section: Imentioning

confidence: 99%

Two-Switch High Gain Non-Isolated Cuk Converter

Almalaq

Matin

2020

Eng. Technol. Appl. Sci. Res.

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This paper introduces a two-switch high gain non-isolated Cuk converter which can be used as a high gain DC-DC converter in renewable energy, such as photovoltaic and fuel cell, applications because their output is low. As the conventional, the proposed Cuk converter provides negative output voltage but with a higher voltage in magnitude. The main advantage of the proposed converter is having lower voltage stress with the ability to maintain a higher voltage gain. By combining a switched-inductor and a switched-capacitor into the conventional Cuk converter, the proposed Cuk converter has the ability to reach 13 times the input voltage for a duty cycle D of 0.75. Also, by attaching more switched-inductors to the proposed Cuk converter, more voltage gain can be achieved. A complete theoretical analysis of the Continuous Conduction Mode (CCM) of the proposed Cuk converter is presented and the key aspects of the circuit design have been derived. Also, a comparison in terms of voltage gain and voltage stress between the proposed Cuk converter and Cuk converters using other techniques is presented. The proposed Cuk converter has been designed for 100W rated power, -152V output voltage, 50kHz switching frequency, and 75% duty cycle. The presented converter is simulated in Matlab/Simulink and the results are discussed.

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Section: Imentioning

confidence: 99%

Two-Switch High Gain Non-Isolated Cuk Converter

Almalaq

Matin

2020

Eng. Technol. Appl. Sci. Res.

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“…Parameter values are taken from Formisano et al (2021), Anthon et al (2015); and Subhashree et al (2019) for L boost and C boost ; from Wei et al (2019), Subhashree et al (2019); Touss et al (2020); and Wang et al (2019) for L buck and C buck ; from Dimitrov et al (2020) and Mohammeda et al (2019) for L buck–boost and C buck–boost , with IGBT technology; and finally from Alharbi (2017); López del Moral et al (2018); and Raj et al (2020) for L buck–boost and C buck–boost with SiC-MOSFET technology.…”

Section: Modellingmentioning

confidence: 99%

Impact of nearby lightning on photovoltaic modules converters

Barmada

Formisano

Hernández

et al. 2021

COMPEL

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Purpose The lightning phenomenon is one of the main threats in photovoltaic (PV) applications. Suitable protection systems avoid major damages from direct strikes but also nearby strikes may induce overvoltage transients in the module itself and in the power conditioning circuitry, which can permanently damage the system. The effects on the PV system sensibly depend on the converter topology and on the adopted power switch. In the present study, a comparative analysis of the transient response due to a nearby lightning strike (LS) is carried out for three PV systems, each equipped with a different converter, namely, boost, buck and buck–boost, based on either silicon carbide metal oxide semiconductor field effect transistors (SiC MOSFET) or insulated gate bipolar transistors controlled power switch devices, allowing in this way an analysis at different switching frequencies. The purpose of this paper is to present the results of the numerical analysis to help the design of suited protection systems. Design/methodology/approach Using a recently introduced three-dimensional semi-analytical method to simulate the electromagnetic transients caused in PV modules by nearby LSs, we investigate numerically the effect of a LS on the electronic circuits connecting the module to the alternate current (AC) power systems. This study adopts numerical simulations because experimental analyses are not easy to perform and does not grant a sufficient coverage of all statistically relevant aspects. The approach was validated in a previous paper against available experimental data. Findings It is found that the load voltage is not severely interested by the strike effects, thanks to the low pass filters present at the converter output, whereas a relatively high overvoltage develops between the negative pin of the inner circuitry and the “ground” voltage reference. The overcurrent present in the active switches is hardly comparable because of the different topologies and working frequencies; however, the highest overcurrent is observed in the buck converter topology, with SiC MOSFET technology, although it shows the fastest decay. Originality/value This research proposes, to the best of the authors’ knowledge, a comprehensive comparison of the indirect lighting strike effects on the converter connected to PV panels. A proper design of the lightning and surge protection system should take into account such aspects to reduce the risk of induced overvoltage and overcurrent transients.

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“…eir production cost and electromagnetic interference (EMI) are high. e yback [4,5] and the forward [6,7] are examples of this category. erefore, understanding the above conditions in relation to the rst category, the desire to use nonisolated converters is quite evident.…”

Section: Introductionmentioning

confidence: 99%

A High Gain DC-DC Converter Based on Coupled Inductor and Switched-Capacitor Cell with Low-Voltage Stress

Fard

Sadeghzadeh

2022

Journal of Electrical and Computer Engineering

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This paper presents a nonisolated ultrahigh step-up DC-DC converter with an interleaved structure that is suitable for high power and voltage applications. In order to increase the voltage gain, the proposed structure uses coupled inductors and switched-capacitor cells. Achieving this goal is accompanied by avoiding the imposition of any extreme duty cycle or high turns ratio to the converter. The current ripple is reduced due to the use of the interleaved structure. Since the voltage stress of the switches is lower than the output voltage, by selecting the low-voltage rated switches and small RDS(on), the conduction losses are reduced. In addition, alleviating the phenomenon of reverse recovery of diodes and creating soft-switching conditions in MOSFETs, which leads to a reduction of switching losses, are other advantages of the proposed converter. Therefore, there is no need to use clamp circuits in the mentioned structure. The experimental results, using a prototype of 350 W-18 V/400 V, verify the effective performance of the proposed converter.

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Analysis and implementation of the Buck-Boost Modified Series Forward converter applied to photovoltaic systems

Cited by 10 publications

References 32 publications

Two-Switch High Gain Non-Isolated Cuk Converter

Two-Switch High Gain Non-Isolated Cuk Converter

Impact of nearby lightning on photovoltaic modules converters

A High Gain DC-DC Converter Based on Coupled Inductor and Switched-Capacitor Cell with Low-Voltage Stress

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