Analysis and experimental study of the buck, boost and buck-boost inverters

Vázquez, N.; Almazán, José L.; Álvarez, J. Raziel; Aguilar, C.; Arau, J.

doi:10.1109/pesc.1999.785602

Cited by 68 publications

(48 citation statements)

References 6 publications

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“…Conversely, the final structure will be different as most of them require boosting. Subsequently, the power of a single PV panel is low and strongly reliant on ambient temperature and solar irradiance (ambient conditions), therefore either a buck-boost or boost converter is required to attain an adequate DC-link voltage [95][96][97][98][99]. Figure 22 presents a H-bridge boosting PV inverter with low-frequency transformer, with highfrequency transformer, and without transformer, respectively.…”

Section: Control Structure For Single Phase and Three Phase Grid Connmentioning

confidence: 99%

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

et al. 2018

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Abstract:The research significance of various scientific aspects of photovoltaic (PV) systems has increased over the past decade. Grid-tied inverters the vital elements for the effective interface of Renewable Energy Resources (RER) and utility in the distributed generation system. Currently, Single-Phase Transformerless Grid-Connected Photovoltaic (SPTG-CPV) inverters (1-10 kW) are undergoing further developments, with new designs, and interest of the solar market. In comparison to the transformer (TR) Galvanic Isolation (GI)-based inverters, its advantageous features are lower cost, lighter weight, smaller volume, higher efficiency, and less complexity. In this paper, a review of SPTG-CPV inverters has been carried out. The basic operational principles of all SPTG-CPV inverters are presented in details for positive, negative, and zero cycles. A comprehensive analysis of each topology has been deliberated. A comparative assessment is also performed based on weaknesses, strengths, component ratings, efficiency, total harmonic distortion (THD), semiconductor device losses, and leakage current of various SPTG-CPV inverters schemes. Typical PV inverter structures and control schemes for grid connected three-phase system and single-phase systems are also discussed, described, and reviewed. Comparison of various industrial grids-connected PV inverters is also performed. Loss analysis is also performed for various topologies at 1 kW. Selection of appropriate topologies for their particular application is thoroughly presented. Then, discussion and forthcoming progress are emphasized. Lastly, the conclusions are presented. More than 100 research publications on the topic of SPTG-CPV inverter topologies, configurations, and control schematics along with the recent developments are thoroughly reviewed and classified for quick reference.

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Section: Control Structure For Single Phase and Three Phase Grid Connmentioning

confidence: 99%

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

et al. 2018

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“…Many different approaches have been made in order to overcome this problem [2][3] [4][5] [6]. A comprehensive review of those solutions is found in [7].…”

Section: Introductionmentioning

confidence: 99%

“…A slightly different topology that exploits the same powerdecoupling concept was introduced by Vasquez et.al. in [6]. The basic idea is that ripple power decoupling can be achieved integrating the Ripple-Port in the converter exploiting the LC output filter, rather than providing it with a dedicated circuit.…”

Section: Introductionmentioning

confidence: 99%

“…However, the capacitance needed tends to be higher than Ripple-Port based solutions. This paper proposes a new topology built on the original concept proposed in [6] but completing it with a ZVS linecommutate H-bridge on the AC side, that can further reduce the converter capacitance with a limited increase in the complexity. The outcome is that values of total capacitance that are competitive with Ripple-Port solutions can be achieved with an integrated approach were no additional PWM legs are needed and the impact on the efficiency of the converter can be minimised.…”

Section: Introductionmentioning

confidence: 99%

“…Dual DC-DC [6] procedure for the AC side capacitor used for power decoupling. The design has been validated in a closed loop time domain simulation and compared with Ripple-Port solutions, showing promising performances.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A low capacitance single-phase AC-DC converter with inherent power ripple decoupling

Gottardo

Lillo

Empringham

et al. 2016

IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society

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Abstract-This paper proposes a new single-phase AC-DC conversion topology with inherent power ripple decoupling, based on the combination of a PWM H-bridge inverter, an AC side LC filter and a ZVS line commutated H-bridge. A capacitor on the AC side is used as power decoupling element. By appropriate selection of the capacitor voltage, the power ripple at twice the AC frequency can be cancelled from the DC side instantaneous power, achieving negligible DC voltage ripple using a smaller total capacitance compared to traditional solutions.Recently, several solutions using the concept of Ripple-Port have been proposed that reduce the overall capacitance. However, they usually need at least a dedicated PWM half-bridge leg, adding switching loss, and a separate LC tank. Instead, the proposed topology integrates the ripple compensation in the AC/DC conversion stage, exploiting the AC filter and minimising additional loss thanks to the ZVS of the additional H-bridge.The concept of the steady state operation of the proposed converter is described analytically and validated in simulation using MATLAB Simulink and PLECS.This work is being developed at University of Nottingham within the framework of project SENSIBLE.

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A Novel Control Scheme for Buck-Boost DC to AC Converter for Variable Frequency Applications

Sarowar

Choudhury

Hoque

2015

Procedia - Social and Behavioral Sciences

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This paper represents a novel control scheme for buck-boost DC to AC converter in variable frequency operation. Voltage controlled dual slope delta modulator is designed to reduce the harmonic distortion of the output voltage for variable frequency applications. The output of the buck-boost converter with the proposed control scheme produces near sinusoidal voltage of constant magnitude irrespective of the frequency. The total harmonic distortion of the proposed scheme is under 4% which within IEEE Std 519 Voltage Harmonic Limits.

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Analysis and experimental study of the buck, boost and buck-boost inverters

Cited by 68 publications

References 6 publications

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

A low capacitance single-phase AC-DC converter with inherent power ripple decoupling

A Novel Control Scheme for Buck-Boost DC to AC Converter for Variable Frequency Applications

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