Dynamic characteristics of current-fed semi-quadratic buck-boost converter in photovoltaic applications

Nousiainen, L.; Suntio, Teuvo

doi:10.1109/ecce.2011.6063886

Cited by 13 publications

(17 citation statements)

References 20 publications

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“…To solve the aforementioned problems, many modified single‐ and double‐switch nonisolated buck‐boost DC/DC topologies, with improved performance, are introduced in recent years . In Ajami et al, a new type of single‐switch buck‐boost converter based on CUK converter with low voltage stress, continuous input current, and low output voltage ripple is presented.…”

Section: Introductionmentioning

confidence: 99%

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

Hasanpour

Mostaan

Baghramian

et al. 2019

Circuit Theory & Apps

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Summary This paper presents a novel transformerless semi‐quadratic buck‐boost converter (SQBuBoC). In the proposed SQBuBoC, two power switches with simultaneous operation are used and a higher step‐up/step‐down voltage conversion ratio is achieved compared with the traditional buck‐boost, Cuk, single‐ended primary‐inductor converter, and Zeta converters. The positive polarity of the output voltage, along with low ripple continuous input current and common ground between the source and the output voltages, are some features that make the suggested topology more suitable for many applications with wide range of output voltage such as photovoltaic systems. Moreover, the total voltage stress across the power switches in this converter is lower than the cascade boost, and the traditional buck‐boost converters led to power MOSFETs selection with lower drain‐source ON resistance (Rds) and efficiency improvement. All the steady‐state analysis and comparisons in continuous conduction mode (CCM) are discussed in details. In addition, to study the low frequency behavior of the SQBuBoC by means of the state‐space averaging technique, the small and large signal models of this converter in CCM are presented. Finally, the SQBuBoC analysis is justified using experimental results of a 50 W step‐up 25 V to 120 V and a 28 W step‐down 25 V to 14 V laboratory prototypes.

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Section: Introductionmentioning

confidence: 99%

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

Hasanpour

Mostaan

Baghramian

et al. 2019

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

“…For D < 0.5, it works as buck converter and for D > 0.5 its works as boost converter. The input impedance is greater than load resistance when it works as buck converter and less then load resistance when it works as boost converter [88,89].…”

Section: Buck-boost Convertermentioning

confidence: 99%

“…Basic DC-DC converters are of four types i.e. buck converter [81][82][83], boost converter [84][85][86][87], buck-boost converter [88,89] and cuk converter [90,91]. Conventional boost, buck-boost and cuk converters are regularly used for solar applications.…”

Section: State Of Artmentioning

confidence: 99%

“…The first category [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] covers the PV modelling and PV array designing. The second category is based on MPPT methods and their detailed study while third and fourth categories are based on converter [74][75][76][77][78][79][80][81][82][83][84][85][86][87][88][89][90][91] and inverter topologies [92][93][94][95][96][97][98][99][100][101][102][103][104][105][106][107][108]…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Comprehensive Review on Grid-TiedSolar Photovoltaic System

Kumar

Gupta

2017

JGE

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Energy generation is facing a big challenge for meeting the load demand during peak hours. Power utilities are heavily depending on fossil fuels due to limited resources of non renewable energy generation. Therefore researchers and scientists are looking towards some distributed generators (DGs) to supply extra power during peak hours of energy curve. Solar power gives them an extra sniff to meet the load demand in that period. As a consequence grid-tied solar Photovoltaic (PV) system catches the eyes of researchers and industrialist mainly for reducing the burden of fossil fuel energy generation. Single stage or two stages PV systems are applicable for grid interconnection with or without battery backup. Double stage system is generally suggested for practical applications as it holds a benefit of power quality improvement. This article presents a comprehensive review on grid-tied solar PV system. The complete architecture of the grid-tied PV system includes the construction of PV array, MPPT methods, DC-DC converters, Inverters and control algorithms. Different control techniques and topologies with their merits and demerits for grid-tied systems are thoroughly reviewed. The comparisons of different conventional and advanced control techniques justify the practicability of this architecture. Different topologies and control methods of grid-tied PV system are studied thoroughly to justify the potential of grid-tied PV system.

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“…This increases the inverter cost while reducing reliability. Although some recent single-phase current-source PV topologies [8][9][10][11][12][13][14] have better efficiency and THD performances, they have additional circuitry, including passive and switching components in the main current path to reduce the DC link inductor size. The increased number of components and more complex control could cause extra losses and reliability issues.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of a low-cost current-source 1-ph grid-connected PV inverter

Ertasgin¹,

Soong²,

Ertugrul³

2015

Turk J Elec Eng & Comp Sci

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This paper investigates the design and performance of a 150 W single-phase current-source grid-connected inverter topology that is based on a PV array and DC link inductor acting as a constant-current source. The inverter is implemented using a single boost switch, an H-bridge inverter, and a CL output filter. The inverter output current is simply controlled using the boost switch and open-loop or feedforward control. The dark I-V configuration is used to simulate two series PV modules. Comprehensive test results are obtained to validate the computer simulation results.Furthermore, the proposed inverter's ability to deliver a sinusoidal current to the grid while meeting the appropriate standards, i.e. total harmonic distortion and power factor requirements, is also examined for various modulation index values and irradiances.

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Dynamic characteristics of current-fed semi-quadratic buck-boost converter in photovoltaic applications

Cited by 13 publications

References 20 publications

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

A Comprehensive Review on Grid-TiedSolar Photovoltaic System

Performance analysis of a low-cost current-source 1-ph grid-connected PV inverter

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