Inversor Integrado Zeta para Aplicações em Sistemas Autonômos Monofásicos de Geração de Energia

Dionizio, Anderson Aparecido; Sampaio, Leonardo Poltronieri; Silva, Sérgio Augusto Oliveira da

doi:10.18618/rep.2022.4.0016

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…The Zeta-based integrated inverter was also presented in [17], operating as a standalone sinusoidal voltage source for autonomous GD/battery systems. However, the operation in the DCM can be represented by less complex and challenging mathematical models from the point of view of the output voltage controller.…”

Section: Introductionmentioning

confidence: 99%

“…However, using the converter in the CCM for the same power level reduces the RMS value of the currents in the power switches and diodes, which indicates a more efficient operation once the elevated RMS currents are related to conduction losses. Nonetheless, this article proposes the SP-IZI converter operating in the CCM, making it more efficient than previous proposals [15][16][17] and able to operate as a sinusoidal voltage source for local loads. At the same time, the proposed controller overcomes the difficulties in controlling the output voltage without the need to measure the output inductor current.…”

Section: Introductionmentioning

confidence: 99%

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Novel Integrated Zeta Inverter for Standalone Applications

Dionizio,

Pelz,

Sampaio

et al. 2024

Energies

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In recent years, distributed generation systems based on renewable energy sources have gained increasing prominence. Thus, the DC/AC converters based on power electronics devices have become increasingly important. In this context, this article presents an integrated Zeta inverter for low-power conditions, which operates in continuous conduction mode (CCM), achieving efficiency greater than 95%. The proposed topology is composed of four power switches, two operating at high frequency and two operating at low frequency, i.e., at the output frequency. Compared with the topologies in the literature, these configurations make it a competitive solution from the point of view of efficiency, number of elements, and, consequently, implementation cost. The proposed converter operates as a sinusoidal voltage source for local loads and is supplied by a DC source, such as batteries or a photovoltaic array. A multi-resonant voltage controller was used to guarantee the sinusoidal voltage provided to the non-linear load while dealing with the complex dynamics of the Zeta converter in the CCM. Experimental results from a 324 W prototype show the converter’s implementation feasibility and the high efficiency of the DC/AC conversion.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Integrated Zeta Inverter for Standalone Applications

Dionizio,

Pelz,

Sampaio

et al. 2024

Energies

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Generalized state‐space averaging modeling to fourth‐order power converters operating in DCM

Dionizio,

Sampaio,

da Silva

2024

Circuit Theory & Apps

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This paper presents a novel methodology for correcting the state‐space averaging (SSA) modeling for DC‐DC power converters represented for fourth‐order systems operating in discontinuous conduction mode (DCM). SSA modeling has been widely employed for converters operating in continuous conduction mode (CCM), obtaining a good similarity between the switched converter and the mathematical model. In contrast, when the converters work in DCM, significant deviations between the average and RMS values imply errors in the SSA model. Hence, the proposed generalized SSA modeling methodology provides an accurate model to aid the controllers and system design. Consequently, the proposed technique can be applied to distinct fourth‐order power converters such as Zeta, Ćuk, and SEPIC in several applications. Additionally, SSA corrections can be associated with different techniques for obtaining the small‐signals representation. Simulation and experimental results and mathematical analyses that prove the feasibility and functionality of the proposal are addressed.

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Estudo do Inversor ĆUK Integrado Monofásico em Operação Autônoma no Modo de Condução Descontínua

Bortoni¹,

Filho²,

Seara³

2024

Eletrônica de Potência

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Resumo-O método de Thiele-Small para projeto de caixas acústicas considera o modelo linear do alto-falante excitado por fonte de tensão, operando com pequenos sinais. Subseqüentes estudos têm sido feitos para introduzir no modelo algumas características não-lineares consentâneas com a operação usando grandes sinais. Este trabalho apresenta uma análise comparativa do comportamento de alto-falantes instalados em baffle infinito e caixas acústicas excitados por tensão e corrente. Tal análise leva em conta as não-linearidades da bobina móvel, do fator de força e da compliância da suspensão do alto-falante. Palavras-chave-Comparação entre modelos, excitação por fonte de tensão e corrente, modelo do alto-falante.

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Inversor Integrado Zeta para Aplicações em Sistemas Autonômos Monofásicos de Geração de Energia

Cited by 3 publications

References 25 publications

Novel Integrated Zeta Inverter for Standalone Applications

Novel Integrated Zeta Inverter for Standalone Applications

Generalized state‐space averaging modeling to fourth‐order power converters operating in DCM

Estudo do Inversor ĆUK Integrado Monofásico em Operação Autônoma no Modo de Condução Descontínua

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