Parallel operation of inverter using trans‐Z‐source network

Aleem, Zeeshan; Shin, Dong Yeok; Cha, Honnyong; Lee, Jong Pil; Yoo, Dong-Wook; Peng, Fang Zheng

doi:10.1049/iet-pel.2014.0841

Cited by 22 publications

(11 citation statements)

References 35 publications

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“…6a and c respectively. The input current ripple, which is the same as the inductor ripple current, can be further reduced based on the applications by choosing an appropriate inductor value as given in (10). In a conventional fault tolerant three-level VSI because of the failure of any inverter leg the line voltage is reduced by 3 at load.…”

Section: Discussion Of Simulation and Experimental Resultsmentioning

confidence: 99%

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Fault tolerant three‐level boost inverter with reduced source and LC count

Sahoo

Keerthipati

2018

IET Power Electronics

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Presently single stage boost multilevel inverters are becoming more popular for power conversion in renewable energy systems, AC-DC hybrid microgrids etc. Usually in these boost inverter the voltage stress across the inverter leg switches as well as current through these switches are quite higher as compared to load ratings which increases the chances of inverter leg switch failure. In this paper a three level voltage source boost inverter is proposed to achieve rated three level AC output voltage in a single power conversion stage. It retains all the advantages of three level quasi Z-Source inverter by using less number of passive components in the intermediate network between DC source and inverter leg. Beside the inherent shoot through fault tolerant feature the proposed inverter is capable to operate in open circuit failure to give rated balanced AC voltage at load. The above advantages of the proposed single stage inverter make it suitable for low and medium power renewable energy applications where size, weight are main constraint and some of the critical loads are connected to the system. The proposed inverter is verified by simulation (in MATLAB Simulink) and experiment with the help of a laboratory prototype. Nomenclature Ton shoot through period Ts switching time period D shoot through duty ratio (ratio of Ton to Ts) I i average DC input current I ac current fed to the inverter leg V g input DC voltage V m peak AC phase voltage at output M modulation index V C voltages across the capacitors C 1 , C 2

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Section: Discussion Of Simulation and Experimental Resultsmentioning

confidence: 99%

“…To address these issues, recently, impedance source fed single stage boost inverters have been discussed in the literature [7][8][9][10] for improving the system efficiency during power conversion. In [11], one of the basic single stage boost inverter, i.e.…”

Section: Introductionmentioning

confidence: 99%

Fault tolerant three‐level boost inverter with reduced source and LC count

Sahoo

Keerthipati

2018

IET Power Electronics

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“…In [73], a trans-Z-source neutralpoint clamped inverter has been introduced which is composed of two Z-source networks. In some of the references, cascaded Zsource networks and generalised Z-source networks have been proposed to improve the boost factor [74][75][76]. In [77,78], by combining the switched inductor cell and coupled inductors, a new structure has been obtained by setting the conversion rate of the coupled inductor and according to the capability of the switched inductor, the boost factor increases.…”

Section: Szsn With High Boost Capability (Hszsn)mentioning

confidence: 99%

Switched Z‐source networks: a review

Nozadian

Babaei

Hosseini

2019

IET Power Electronics

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This study reviews and categorises different structures of switched Z-source networks. Generally, these structures are divided into two groups of basic switched Z-source networks and switched Z-source networks with the capability of high boost. Each of these groups is divided into several subgroups and different structures are introduced. For each subsection, the general power circuit is proposed and the extraction method from general power circuit for each structure is obtained. This study also provides a complete analysis of structures by using a conventional control method with two shoot-through and non-shootthrough modes. Small signal analysis for structures with a basic switched Z-source network is conducted and the general signal flow graph is extracted. A comprehensive analysis of all structures with a switched Z-source network is done and the tree diagram for the division of these structures is provided. Finally, different industrial applications and outlook of Z-source networks are introduced.

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“…Z‐source structure has received a lot of attention because of its numerous benefits including single‐stage power conversion and improved reliability. Thus, researchers have used Z‐Source Inverters (ZSIs) in many different applications . It employs five bidirectional switches, an impedance network consisting of two inductors and capacitors, LC filter, and load.…”

Section: Categories Of Mcsmentioning

confidence: 99%

“…Thus, researchers have used Z-Source Inverters (ZSIs) in many different applications. [39][40][41][42] It employs five bidirectional switches, an impedance network consisting of two inductors and capacitors, LC filter, and load. The storage elements in the impedance network provides the boosting feature.…”

Section: Single-phase Z-source MCmentioning

confidence: 99%

Matrix converters for electric power conversion: Review of topologies and basic control techniques

Alammari

Aleem

Iqbal

et al. 2019

Int Trans Electr Energ Syst

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Summary A matrix converter (MC) is a topology for ac‐ac power conversion that has been widely investigated and compared with conventional ac‐dc‐ac topologies because of its attractive features. The MC is formed of controlled active devices and does not include any sizeable passive components. The converter can be used to directly control single/three/multiphase loads. MCs are highly effective in controlling the power factor and providing sinusoidal input and output currents. This paper provides a comprehensive state of the art review of the MC and discusses the main topology variations including single‐phase conventional and isolated MCs, three‐phase direct and indirect MCs, impedance source (Z‐source) MCs, multiphase MCs, and multilevel MCs (MMCs). The aim of this research article is to provide a one‐stop information on single/three/multiphase matrix, Z‐source matrix, and multilevel MCs for potential readers, researchers, and practicing engineers.

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Parallel operation of inverter using trans‐Z‐source network

Cited by 22 publications

References 35 publications

Fault tolerant three‐level boost inverter with reduced source and LC count

Fault tolerant three‐level boost inverter with reduced source and LC count

Switched Z‐source networks: a review

Matrix converters for electric power conversion: Review of topologies and basic control techniques

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