Study of quasi Z-source direct matrix converter based on new strategy of dual space vector modulation

Wang, Zhen; Guo, Youguang; Guo, Yu; Deng, Wenlang; Wang, Xiao

doi:10.1109/iecon.2017.8216270

Cited by 6 publications

(3 citation statements)

References 12 publications

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“…In order to verify the boost performance of the proposed topology and the effectiveness of the modulation strategy, the schematic diagram of the experimental device is shown in Fig. 18 [17]. The actual three‐phase improved QZS is shown in Fig.…”

Section: Methodsmentioning

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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Section: Methodsmentioning

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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“…The ZS-N contains six capacitors, six inductors, and three bidirectional switches. All three switches must have the same status [22].…”

Section: A Configuration Of Zs-dmcmentioning

confidence: 99%

A Survey on Topologies and Controls of Z-Source Matrix Converter

Wahono¹,

Sutikno²,

Widodo³

et al. 2018

EECSI

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This paper describes the Z-source matrix converter (ZS-MC) topology which specifically discusses topology and control on the ZS-MC. There are two topologies on the ZS-MC, namely Z-source direct-MC (ZS-DMC) and indirect-MC (ZS-IMC). The difference of each of these topologies is in the number of switching mosfets, where ZS-DMC put on nine switches, while ZS-IMC eighteen switches. ZS-IMC topology overcomes the limitations of traditional MC voltage reinforcement and accommodates the operation of buck and boost converter by reducing the number of switches and providing high efficiency.

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“…In the topology of series QZS double output indirect matrix converter, the inverter stage adopts the improved space vector modulation strategy and adopts the direct control, which can achieve the purpose of boost [12]. Based on this, QZS direct matrix converter adopts a new strategy, which also solves the problem of low voltage transmission ratio [13,14]. In addition, an improved quasi‐ Z ‐source inverter circuit is used to make the whole topology store more energy in the direct state, so as to obtain larger voltage gain and improve the output power quality under the condition of small duty cycle [15].…”

Section: Introductionmentioning

confidence: 99%

Research on Novel Space Vector Modulation Strategy Based on Quasi‐Z Source Three‐Phase Four‐Leg Matrix Converter

Guo

Long

2022

IEEJ Transactions Elec Engng

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Non-member Jian Long a , Non-member Due to the low voltage transmission (no more than 0.866) and weak anti-interference ability of the Four-leg Matrix Converter (4LMC), its application in grid-connected transformation is limited. Therefore, this paper proposes a new modulation strategy of the Four-leg Matrix Converter (4LMC) based on quasi-Z source (QZS). Firstly, the boost principle of QZS-4LMC and three-dimensional space vector modulation strategy are analyzed. Secondly, on the basis of the three-dimensional space vector modulation, the shoot-through zero vector is inserted into the three-dimensional space vector modulation by dividing the shootthrough zero vector into 16 equal parts by using the shoot-through state instead of some zero vectors, so as to obtain a new modulation strategy. Then, the simulation model of QZS-4LMC is built in MATLAB/Simulink to analyze the control strategy. Finally, the experimental results verify the correctness and effectiveness of this new modulation strategy.

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Study of quasi Z-source direct matrix converter based on new strategy of dual space vector modulation

Cited by 6 publications

References 12 publications

Direct matrix converter based on improved quasi‐Z source network

Direct matrix converter based on improved quasi‐Z source network

A Survey on Topologies and Controls of Z-Source Matrix Converter

Research on Novel Space Vector Modulation Strategy Based on Quasi‐Z Source Three‐Phase Four‐Leg Matrix Converter

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