Quadratic power conversion for industrial applications

Moschopoulos, Gerry

doi:10.1109/apec.2010.5433400

Cited by 11 publications

(7 citation statements)

References 15 publications

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“…Now, a closed-loop system is obtained by substituting the control law (5) into the non-linear model (1), which results in…”

Section: Controller Designmentioning

confidence: 99%

“…Developments in power supply systems have allowed DC-DC converters to be incorporated in modern applications, such as renewable energy (photovoltaic and wind power), electric vehicles, and smart grids, among others. In these applications, there are numerous requirements that the converters should satisfy, such as having a wide conversion ratio, as mentioned in [1][2][3][4][5], and numerous references within them. Several approaches to providing converters with a wide conversion ratio have been proposed in the literature, including the cascade connection, which is a simpler converter scheme that has a high conversion ratio.…”

Section: Introductionmentioning

confidence: 99%

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Switching regulator using a DC–DC step‐down non‐cascading converter

Loera-Palomo

Morales-Saldaña

Gallardo

et al. 2017

IET Power Electronics

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In this study a DC-DC switching regulator with step-down capacity is presented. It uses a converter based on noncascading structures. A model of the converter, as well as a controller design procedure to achieve the regulation task, is presented. For the controller design, a control scheme that consists of two control loops is applied. The inner loop is built using the inductor current as feedback. The outer loop is implemented using a proportional-integral controller. The tuning procedure of the controller parameters was developed from the state-space non-linear averaged model of the converter, where the necessary conditions for the existence of an unique operating point and stability in closed-loop are obtained. To prove the effectiveness of the switching regulator, numerical simulations and experimental results are presented.

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“…Now, a closed-loop system is obtained by substituting the control law (5) into the non-linear model (1), which results in…”

Section: Controller Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Switching regulator using a DC–DC step‐down non‐cascading converter

Loera-Palomo

Morales-Saldaña

Gallardo

et al. 2017

IET Power Electronics

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“…In [25], Loera-Palomo et al present a family of quadratic step-down converters based on the noncascade connection of basic switching converters; in [26], a set of converters with a quadratic step-up voltage conversion ratio is introduced. Other quadratic or high-gain converters are presented in [27][28][29][30]. In the context of quadratic converters, in recent years, converters with high buck-boost conversion ratios have been appearing [7,[16][17][18]31].…”

Section: Introductionmentioning

confidence: 99%

Noncascading Quadratic Buck-Boost Converter for Photovoltaic Applications

et al. 2021

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The development of switching converters to perform with the power processing of photovoltaic (PV) applications has been a topic receiving growing interest in recent years. This work presents a nonisolated buck-boost converter with a quadratic voltage conversion gain based on the I–IIA noncascading structure. The converter has a reduced component count and it is formed by a pair of L–C networks and two active switches, which are operated synchronously to achieve a wide conversion ratio and a quadratic dependence with the duty ratio. Additionally, the analysis using different sources and loads demonstrates the differences in the behavior of the converter, as well as the pertinence of including PV devices (current sources) into the analysis of new switching converter topologies for PV applications. In this work, the voltage conversion ratio, steady-state operating conditions and semiconductor stresses of the proposed converter are discussed in the context of PV applications. The operation of the converter in a PV scenario is verified by experimental results.

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“…Some of these converters are called quadratic, because the conversion ratio is a quadratic function of the duty ratio. Synthesis and analysis of quadratic converters with one active switch are given in [2, 6, 7], as well as the analysis of different quadratic converters and their applications in [8]. Families of converters with high step‐up conversion ratio are presented in [9].…”

Section: Introductionmentioning

confidence: 99%

Family of quadratic step‐up dc–dc converters based on non‐cascading structures

Loera-Palomo

Morales-Saldaña

2015

IET Power Electronics

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The interconnection of basic switching converters to increase power handling capabilities in dc applications has been widely reported in technical literature. This study presents a family of switching step-up dc-dc converters based on the principle of reduced redundant power processing (R 2 P 2 ). This principle states that the power transfer from input port and output port on interconnected converters is reduced when a non-cascading connection is used. As shown in this study, the principle R 2 P 2 is useful for developing new converters. These have wide conversion ratios and quadratic dependence with respect to the duty ratio. In this study, the voltage conversion ratios, average models and steadystate operating conditions for proposed converters are derived, which are verified by experimental results.

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Quadratic power conversion for industrial applications

Cited by 11 publications

References 15 publications

Switching regulator using a DC–DC step‐down non‐cascading converter

Switching regulator using a DC–DC step‐down non‐cascading converter

Noncascading Quadratic Buck-Boost Converter for Photovoltaic Applications

Family of quadratic step‐up dc–dc converters based on non‐cascading structures

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