Series Z‐source and nine‐switch dual‐output inverter stage two‐stage matrix converter

Deng, Wenlang; Ju, Xinchao; Li, Lijuan; Guo, Youguang; Huang, Zhujin; Zheng, Li; Deng, Shuwei

doi:10.1049/iet-pel.2015.0593

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…In order to solve the mentioned problems, Z-source converters (ZSCs) are proposed in [4,5]. The conventional ZSC, which is in X-shape with two identical capacitors and two identical inductors, was first proposed by Peng in 2002 [6].…”

Section: Introductionmentioning

confidence: 99%

A new soft‐switching multi‐input quasi‐Z‐source converter for hybrid sources systems

Harchegani

Asghari

Jazaeri

2021

IET Renewable Power Gen

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This study focuses on a zero voltage transition multi-input quasi-Z-source converter (qZSC). This topology can be used for input sources with different voltages and currents to provide a constant output voltage. In the proposed structure, several qZSCs are combined and the output filter of all stages is eliminated. Therefore, the overall number of circuit elements, cost, volume and weight are reduced in comparison with when they are in a separate operation. In this converter, the soft-switching conditions are provided for all stages by using only one auxiliary circuit. The employed technique provides zero-voltage zero-current switching (ZVZCS) and zero-voltage switching for main switches at turnon and turn-off instants, respectively. The auxiliary switch turns on under zero-current switching and turns off under ZVZCS. Furthermore, the reverse recovery losses of diodes are reduced. The theoretical foundation of the proposed converter is presented and its performance is simulated by OrCAD software. The obtained results show 3.5% improvement in the efficiency at nominal loads, compared to its hard-switching counterpart. A dual-input prototype of the proposed structure is successfully built to support the validity of the theoretical analysis. 1Recently, the fuel crisis, global warming and environmental pollution are major factors in shifting to renewable energy sources. Moreover, the Kyoto Protocol promotes us to use clean energies including fuel cell, photovoltaic (PV), wind energy, and so forth. The most important capability of PV and wind energy sources is to serve the energy demand, even in distant or out of grid places and in densely populated areas [1].Renewable energy sources deliver various power in different environmental conditions such as different seasons and climates. Thereby, concurrent use of two or more energy sources is essential. In order to provide regulated voltage from several energy sources, different multi-input topologies have been proposed in recent years. In the multi-input converters (MICs), the number of passive elements and the current stress of semiconductors are reduced. High flexibility as well as better management in energy sources are other benefits of using MICs [2,3].The boost converter is used conventionally in the renewable energy section due to the continuous input current in This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Introductionmentioning

confidence: 99%

A new soft‐switching multi‐input quasi‐Z‐source converter for hybrid sources systems

Harchegani

Asghari

Jazaeri

2021

IET Renewable Power Gen

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“…ZS or QZS converter/inverter can obtain high‐voltage gain in single‐stage power conversion due to its boost capability [4–9]. Therefore, ZS and QZS networks provide attractive enhancement capabilities for DMC and indirect matrix converter (IMC) [10]. In Ellabban et al .…”

Section: Introductionmentioning

confidence: 99%

Direct matrix converter based on improved quasi‐Z source network

Zou

Guo

Wang

et al. 2020

IET power electron.

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This study proposes a three‐phase direct matrix converter (DMC) topology based on an improved quasi‐Z source (QZS) network. The proposed topology shows the following features: (i) Improve the voltage transmission ratio of traditional DMC. (ii) The voltage and current on the output side can be affected by the input side to the minimum, which minimises the harmonic content of the output current. (iii) Due to the existence of the improved QZS network, the three bidirectional switches of each output phase bridge arm are turned‐on at the same time, which improves the reliability of the system. (iv) The improved QZS network has an input LC filter function, and no additional filter circuit is required on the input side. This study analyses the topological structure of the improved QZS‐DMC and elaborates its boost working principle. On this basis, an improved dual space vector modulation strategy with shoot‐through zero vector is proposed, which can effectively reduce the loss of the switch tube and improve the output waveform quality of the converter. Simulation and experimental results verify the proposed topology and strategy.

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Finite control set model predictive control approach of nine switch inverter-based drive systems: Design, analysis, and validation

Gülbudak

Gökdağ

2021

ISA Transactions

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Series Z‐source and nine‐switch dual‐output inverter stage two‐stage matrix converter

Cited by 4 publications

References 31 publications

A new soft‐switching multi‐input quasi‐Z‐source converter for hybrid sources systems

A new soft‐switching multi‐input quasi‐Z‐source converter for hybrid sources systems

Direct matrix converter based on improved quasi‐Z source network

Finite control set model predictive control approach of nine switch inverter-based drive systems: Design, analysis, and validation

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