New interleaved single-phase quasi-Z-source inverter with active power decoupling

Stepenko, Serhii; Roncero‐Clemente, Carlos; Husev, Oleksandr; Makovenko, Elena; Pimentel, Sérgio Pires; Vinnikov, Dmitri

doi:10.1109/cpe.2018.8372558

Cited by 9 publications

(5 citation statements)

References 30 publications

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“…The presented technique has the drawbacks of worse THD compared to the SBC technique. In [65], IqZSI is presented with APD configuration resulting in reduction in the passive components. The IqZSI is extended to PV application with different control approaches and modulation techniques in [66][67][68].…”

Section: Figure 23mentioning

confidence: 99%

Topological Review of Quasi-Switched Boost Inverters

et al. 2021

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This paper presents a comprehensive review based on the features and drawbacks of the quasi-switched boost inverter (qSBI) topologies. The qSBI derived configurations are well suitable for low power applications due to their reduced number of components. This work focuses on the topological review of qSBI derived topologies and serves as a reference for further derivation and research on the selection of suitable topology for the specific renewable energy applications, particularly based on the photovoltaic (PV) converters.

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Section: Figure 23mentioning

confidence: 99%

Topological Review of Quasi-Switched Boost Inverters

et al. 2021

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“…According to the study, a full-SiC 2-level qZSI solution has a clear advantage over the 3-level NPC qZSI solution with Si MOSFETs, in terms of higher efficiency, along with the lower volume of the heatsink, while the volume of passive elements remains the same. The interleaved 2-level qZSI for a single-phase PV application and the control approaches, including different modulation techniques, are discussed in detail in [23][24][25][26][27]. Our work is devoted to the feasibility study of the interleaving approach in terms of size, efficiency and the overall cost of the converter.…”

Section: Description Of a Case Study System With A Quasi-z-source Invmentioning

confidence: 99%

Feasibility Study of Interleaving Approach for Quasi-Z-Source Inverter

et al. 2020

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This paper presents a comprehensive feasibility study of an interleaving approach for a quasi-Z-source inverter. The state-of-the-art approach revealed that an interleaving approach is often used to improve the efficiency and power density that can overcome the problem of oversized passive elements of quasi-Z-source-based converters. The focus is on the application of the interleaving approach in terms of the comparison of several important parameters of a quasi-Z-source inverter. Our analysis includes losses, capacitor and inductor sizes, as well as semiconductor costs. The theoretical comparison is based on the quasi-Z-source inverter model and the losses model. Simulation and experimental verification of theoretical statements are provided. It was found that a 40% reduction of inductor volume, along with 15–20% of efficiency improvements, are achievable. The results are discussed in the conclusion.

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“…The main parts of the topology include the QZS network represented by L 1 , D 1 , C 1 , L 2 , and C 2 ; the FB 2L inverter based on MOSFET switches S 1 , S 2 , S 3 , and S 4 ; and the output filter L F1 , C F , and L F2 feeding the load or connected to the grid. Detailed discussions and explanations on the 2L QZSI for a single-phase PV application as well as the control approaches, including SBC, MBC, constant boost control and their modifications, are provided in [31,[33][34][35]. In this study, SBC was used for generating the ST states.…”

Section: Description Of Topologiesmentioning

confidence: 99%

“…The importance of the power decoupling between the modules and the grid is discussed in Reference [3]. Some theoretical and simulation results for the 2L QZSI and the 3L NPC QZSI are reported in References [31][32][33].…”

Section: Introductionmentioning

confidence: 99%

“…To improve the reliability of the system and achieve higher power density by the reduction of redundant passive components, the approach of interleaving is often used in VSI. It enables significant reduction of the current ripple in QZS-stage inductors and the voltage ripple at the DC-link [27,31,[33][34][35]. A topology of the Interleaved QZSI (IQZSI) under the Simple Boost Control (SBC) was proposed in Reference [34] for PV applications.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Comparison of Two-Level Full-SiC and Three-Level Si–SiC Quasi-Z-Source Inverters for PV Applications

et al. 2019

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The paper presents a comparative study of two solar string inverters based on the Quasi-Z-Source (QZS) network. The first solution comprises a full-SiC two-level QZS inverter, while the second design was built based on a three-level neutral-point-clamped QZS inverter with Silicon based Metal–Oxide–Semiconductor Field-Effect Transistors (Si MOSFETs). Several criteria were taken into consideration: the size of passive elements, thermal design and size of heatsinks, voltage stress across semiconductors, and efficiency investigation. The Photovoltaic (PV)-string rated at 1.8 kW power was selected as a case study system. The advantages and drawbacks of both solutions are presented along with conclusions.

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New interleaved single-phase quasi-Z-source inverter with active power decoupling

Cited by 9 publications

References 30 publications

Topological Review of Quasi-Switched Boost Inverters

Topological Review of Quasi-Switched Boost Inverters

Feasibility Study of Interleaving Approach for Quasi-Z-Source Inverter

Experimental Comparison of Two-Level Full-SiC and Three-Level Si–SiC Quasi-Z-Source Inverters for PV Applications

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